JP2003313302A - Curable composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a curable composition which has low viscosity and good workability and of which the cured product has diminution in contamination (including paint staining) by suppressing plasticizer bleeding to the surface of the cured product obtained from the curable composition, has a low modulus and a high elongation, maintains its mechanical properties for a long time and has good adhesion and a high gel fraction. <P>SOLUTION: The curable composition is composed of a vinyl-based polymer having at least one crosslinkable silyl group and a polyether-based polymer having on the average 1.2 or below of crosslinkable silyl groups. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a vinyl polymer (I) having at least one crosslinkable silyl group, and a polyether polymer having an average of 1.2 or less crosslinkable silyl groups. It relates to a curable composition containing (II).

[0002]

2. Description of the Related Art On the other hand, vinyl polymers obtained by radical polymerization, which have functional groups, particularly those having terminal functional groups, have not been put into practical use, while polymers obtained by ionic polymerization or polycondensation. . Among vinyl-based polymers, (meth) acrylic polymers have high weather resistance, transparency, and other properties that cannot be obtained by polyether-based polymers, hydrocarbon-based polymers, or polyester-based polymers. However, those having an alkenyl group or a crosslinkable silyl group in the side chain are used in highly weather-resistant paints and the like. On the other hand, it is not easy to control the polymerization of the acrylic polymer due to its side reaction,
It is very difficult to introduce a functional group into the terminal.

If a vinyl polymer having an alkenyl group at the terminal of the molecular chain can be obtained by a simple method, a cured product having excellent physical properties as compared with a polymer having a crosslinkable group in its side chain can be obtained. it can. Therefore, although many researchers have studied the manufacturing method, it is not easy to manufacture them industrially. For example, Japanese Patent Laid-Open No. 1-
JP-A-247403 and JP-A-5-255415 disclose a method for synthesizing a (meth) acrylic polymer having an alkenyl group at the end, which uses an alkenyl group-containing disulfide as a chain transfer agent.

In Japanese Unexamined Patent Publication (Kokai) No. 5-262808, a vinyl polymer having hydroxyl groups at both ends is synthesized by using a disulfide having a hydroxyl group, and the reactivity of the hydroxyl group is utilized to make the terminal end. A method for synthesizing a (meth) acrylic polymer having an alkenyl group is disclosed.

In Japanese Unexamined Patent Publication (Kokai) No. 5-111922, a vinyl-based polymer having hydroxyl groups at both ends is synthesized by using a polysulfide having a hydroxyl group, and the reactivity of the hydroxyl group is utilized to further terminate the polymerization. A method for synthesizing a (meth) acrylic polymer having a silyl group is disclosed.

[0006] With these methods, it is difficult to surely introduce functional groups at both ends, and a cured product having satisfactory properties cannot be obtained. In order to surely introduce a functional group into both ends, a large amount of chain transfer agent must be used, which is a problem in the manufacturing process. In addition, since these methods use ordinary radical polymerization, it is difficult to control the molecular weight and molecular weight distribution (ratio of the number average molecular weight to the number average molecular weight) of the obtained polymer.

[0007] In contrast to such conventional techniques, the present inventors have made various inventions on vinyl polymers having various crosslinkable functional groups at their ends, their production methods, curable compositions, and applications. (JP-A-11-08024)
9, JP-A-11-080250, JP-A-11-0058
15, JP-A-11-116617, JP-A-11-116
606, JP-A-11-080571, and JP-A-11-08
0570, JP-A-11-130931, JP-A-11-1
00433, JP-A-11-116763, JP-A-9-2
72714, JP-A-9-272715 and the like).

For example, a silicon-containing group (hereinafter referred to as "crosslinkable silyl group") which has a hydroxyl group or a hydrolyzable group bonded to a silicon atom and can be crosslinked by forming a siloxane bond by moisture or the like even at room temperature. The vinyl-based polymer having the above-mentioned), or a cured product obtained from the composition thereof is excellent in heat resistance or weather resistance and is not particularly limited, but it is a sealing material for an elastic sealing material for construction or a sealing material for double glazing. Materials, electrical / electronic component materials such as solar cell backside encapsulation materials, electrical insulation materials such as wire / cable insulation coating materials, adhesives, adhesives, elastic adhesives, paints, powder coatings, coating materials, foams , Potting agents for electrical and electronic products, films, gaskets, casting materials, various molding materials, and rust prevention for meshed glass and laminated glass end faces (cut parts) Water for the sealing material, available automotive parts and electrical parts, the various applications of the seal such as various machine parts.

Among the above-mentioned uses, a sealing material, particularly a general building sealant, is generally used for the purpose of filling water-tightness and air-tightness by filling the joints and gaps between various members. Therefore, since it is extremely important to follow the use site for a long period of time, it is required that the cured product has low modulus, high elongation, high strength, and retains those properties for a long time. On the other hand, in consideration of workability in these constructions, low viscosity is required as a curable composition (blend).

When the vinyl polymer has a high molecular weight, a cured product of a curable composition using the vinyl polymer as a raw material can have a low modulus, a high elongation and a high strength, but the viscosity of the compound increases, Workability at the time of construction deteriorates. Conversely, if the viscosity of the vinyl polymer is reduced, the workability will be improved, but the mechanical properties of the cured product will be reduced (high modulus, low elongation, low strength).
To do. Therefore, in order to solve this problem, a phthalic acid plasticizer such as a phthalic acid ester having no functional group or a polyether plasticizer is usually used.

[0011]

However, when such a plasticizer is blended in a large amount, in the cured product obtained by curing the compound, the plasticizer bleeds on the surface of the cured product with time (also referred to as migration or oil bleed). ), And causes problems such as stickiness. Further, this also causes problems such as contamination of the periphery of the cured product (sealant or the like), surface contamination after coating, deterioration of adhesiveness, deterioration of hardness and elongation of the cured product.

As the vinyl polymer having such a crosslinkable silyl group, a polymer having a hydrolyzable silicon group in which two hydrolyzable groups are bonded per silicon atom is used. There are many cases, especially when a very fast curing speed is required, such as when used for adhesives or when used at low temperatures, the curing speed is not sufficient, and if flexibility after curing is desired Had a problem in that it was necessary to reduce the crosslink density, and therefore the crosslink density was not sufficient, resulting in stickiness (surface tack).

Therefore, the present invention provides a vinyl polymer having at least one crosslinkable silyl group, and an average of 1.2.
A curable composition containing, as a main component, a polyether polymer having no more than 10 crosslinkable silyl groups, having a low viscosity and good workability, and a cured product obtained by curing the curable composition. By suppressing the bleeding of the plasticizer on the surface, the contamination of the cured product (including paint stainability) is reduced, and the cured product has a low modulus and high elongation and maintains its mechanical properties for a long time. Another object of the present invention is to provide a composition exhibiting good adhesion, good alkyd coatability, and high gel fraction.

[0014]

Means for Solving the Problems As a result of intensive studies made by the present inventors in order to solve such problems, a vinyl polymer having at least one crosslinkable silyl group, and an average of 1. The inventors have found that the above problems can be solved by using a curable composition containing a polyether polymer having two or less crosslinkable silyl groups as a main component, and have completed the present invention.

That is, the present invention relates to a vinyl polymer (I) having at least one crosslinkable silyl group and a polyether polymer (II having an average of 1.2 or less crosslinkable silyl groups. ) Is contained in the curable composition.

The vinyl polymer (I) is not particularly limited, but the value of the ratio (Mw / Mn) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) measured by gel permeation chromatography is 1. It is preferably less than 8.

Further, the main chain of the vinyl polymer (I) is not particularly limited, but it is (meth) acrylic monomer, acrylonitrile monomer, aromatic vinyl monomer, fluorine-containing vinyl monomer and silicon-containing vinyl monomer. It is preferably produced mainly by polymerizing a monomer selected from the group consisting of, more preferably (meth) acrylic monomers, still more preferably acrylic monomers, and more preferably acrylic ester monomers, for general construction. For applications such as low viscosity of the formulation,
From the viewpoint of requiring physical properties such as low modulus, high elongation, weather resistance, and heat resistance of the cured product, it is most preferable that the cured product is produced by polymerization using a butyl acrylate-based monomer. In addition, on the other hand, in applications such as around the engine of automobiles and machines that require oil resistance, heat resistance, high strength, etc., it is preferably produced by polymerization using an ethyl acrylate-based monomer,
Further, from the viewpoint of cold resistance and the like, it is more preferable that it is produced by copolymerizing an ethyl acrylate-based monomer mainly using a 2-methoxyethyl acrylate-based monomer and a butyl acrylate-based monomer. The ratio of monomers to be copolymerized can be changed in consideration of physical properties such as oil resistance and low temperature characteristics.

The main chain of the vinyl polymer (I) is preferably, but not limited to, produced by living radical polymerization, more preferably atom transfer radical polymerization. Further, atom transfer radical polymerization includes, but is not limited to, Groups 7, 8, 9 of the Periodic Table,
It is preferable to use a complex selected from transition metal complexes having a Group 10 or Group 11 element as a central metal as a catalyst, and copper,
A complex selected from the group consisting of nickel, ruthenium, or iron complexes is more preferable, and a copper complex is particularly preferable.

The position of the crosslinkable silyl group in the vinyl polymer (I) is not limited, but the terminal is preferable. Other than that, the main chain may have the same functional group, but it is preferable to have the functional group only at the terminal when rubber elasticity is required for the crosslinked cured product.

The number of crosslinkable functional groups of the vinyl polymer (I) is not particularly limited, but in order to obtain a cured product having higher crosslinkability, it is preferable to have one or more on average,
It is more preferably 1.1 or more and 4.0 or less, still more preferably 1.2 or more and 3.5 or less.

The polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups is not particularly limited, but it is preferable that the crosslinkable silyl groups are at the ends of the main chain. Further, the crosslinkable silyl group of the polyether polymer (II) is preferably one having only one end in the main chain and not having the other end, but 1.2 or less on average. If it is, it will not be specifically limited.

On the other hand, in order to increase the curing speed and crosslink density of the compound, the vinyl polymer (I) has a crosslinkable silyl group represented by the general formula (1) wherein a is 3 in the crosslinkable silyl group. It is preferable to contain a vinyl polymer as a group. —SiY _a R _3-a (1) (wherein R represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or ( R ') ₃ SiO- (R' has 1 to 2 carbon atoms
A monovalent hydrocarbon group of 0, and three R ′ may be the same or different) and represents a triorganosiloxy group represented by They may be the same or different. Y represents a hydroxyl group or a hydrolyzable group, and when two or more Y are present, they may be the same or different. a represents 1, 2, or 3. Further, as described above, the position of the crosslinkable silyl group represented by the formula (1) is not limited, but the main chain terminal of the vinyl polymer (I) is preferable.

[0023]

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to curable compositions. More specifically, the following two components: a vinyl polymer (I) having at least one crosslinkable functional group, and a polyether polymer (II having an average of 1.2 or less crosslinkable silyl groups. ) Is contained in the curable composition. The curable composition of the present invention will be described in detail below. << About vinyl polymer >><Mainchain> The present inventors have heretofore disclosed a vinyl polymer having various crosslinkable functional groups at the polymer end, a method for producing the same, a curable composition, and an application. Have made various inventions (JP-A-11-080249 and JP-A-11-08025).
0, JP-A-11-005815, JP-A-11-1166
17, JP-A-11-116606, JP-A-11-080
571, JP-A-11-080570, JP-A-11-13
0931, JP-A-11-100433, JP-A-11-1
16763, JP-A-9-272714, JP-A-9-2
72715, etc.). The vinyl polymer (I) of the present invention is not particularly limited, but all the polymers disclosed in the invention exemplified above can be preferably used.

The vinyl-based monomer constituting the main chain of the vinyl-based polymer of the present invention is not particularly limited, and various types can be used. To illustrate, (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, (n) -propyl (meth) acrylate, isopropyl (meth) acrylate, (meth) acrylic acid-n
-Butyl, isobutyl (meth) acrylate, tert-butyl (meth) acrylate, (meth) acrylic acid-n
-Pentyl, (meth) acrylic acid-n-hexyl, (meth) acrylic acid cyclohexyl, (meth) acrylic acid-
n-heptyl, (meth) acrylic acid-n-octyl,
2-Ethylhexyl (meth) acrylate, nonyl (meth) acrylate, decyl (meth) acrylate, (meth)
Dodecyl acrylate, phenyl (meth) acrylate,
Tolyl (meth) acrylate, benzyl (meth) acrylate, 2-methoxyethyl (meth) acrylate, 3-methoxybutyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, (meth) Acrylic acid-2
-Hydroxypropyl, stearyl (meth) acrylate, glycidyl (meth) acrylate, 2-aminoethyl (meth) acrylate, γ- (methacryloyloxypropyl) trimethoxysilane, ethylene oxide adduct of (meth) acrylic acid, Trifluoromethylmethyl (meth) acrylate, 2-trifluoromethylethyl (meth) acrylate, perfluoroethylmethyl (meth) acrylate, 2-perfluoroethylethyl (meth) acrylate, permethacrylate acrylate Fluoroethyl perfluorobutylmethyl, 2- (meth) acrylic acid 2-perfluoroethyl-2-perfluorobutylethyl, (meth) acrylic acid perfluoroethyl, (meth) acrylic acid perfluoromethyl, (meth) acrylic acid diper Fluoromethylmethyl, (meta 2,2-perfluoro methyl ethyl acrylate, (meth) acrylic acid perfluoromethyl perfluoroethyl methyl (meth) acrylate, 2
Perfluoromethyl-2-perfluoroethylethyl,
2- (meth) acrylic acid 2-perfluorohexylmethyl,
2-perfluorohexylethyl (meth) acrylate,
2- (meth) acrylic acid 2-perfluorodecylmethyl,
2-perfluorodecylethyl (meth) acrylate,
(Meth) acrylic monomers such as 2-perfluorohexadecylmethyl (meth) acrylate and 2-perfluorohexadecylethyl (meth) acrylate; styrene, vinyltoluene, α-methylstyrene, chlorostyrene,
Aromatic vinyl monomers such as styrene sulfonic acid and salts thereof; Fluorine-containing vinyl monomers such as perfluoroethylene, perfluoropropylene and vinylidene fluoride; Silicon-containing vinyl monomers such as vinyltrimethoxysilane and vinyltriethoxysilane; Maleic anhydride, maleic acid, monoalkyl and dialkyl esters of maleic acid; fumaric acid, monoalkyl and dialkyl esters of fumaric acid; maleimide, methylmaleimide, ethylmaleimide, propylmaleimide, butylmaleimide, hexylmaleimide, octylmaleimide, Maleimide-based monomers such as dodecyl maleimide, stearyl maleimide, phenyl maleimide, cyclohexyl maleimide; acrylonitrile such as acrylonitrile and methacrylonitrile. Triyl monomers; amide group-containing vinyl monomers such as acrylamide and methacrylamide; vinyl esters such as vinyl acetate, vinyl propionate, vinyl pivalate, vinyl benzoate and vinyl cinnamate; alkenes such as ethylene and propylene; butadiene And conjugated dienes such as isoprene; vinyl chloride, vinylidene chloride, allyl chloride, allyl alcohol and the like. These may be used alone or a plurality of them may be copolymerized.

The main chain of the vinyl polymer is at least one monomer selected from the group consisting of (meth) acrylic monomers, acrylonitrile monomers, aromatic vinyl monomers, fluorine-containing vinyl monomers and silicon-containing vinyl monomers. It is preferable that it is produced mainly by polymerizing. Here, “mainly” means that 50 mol% or more, preferably 70% or more of the monomer units constituting the vinyl polymer are the above-mentioned monomers.

Of these, styrene-based monomers and (meth) acrylic acid-based monomers are preferable in view of the physical properties of the product. Acrylic acid ester monomers and methacrylic acid ester monomers are more preferable, and acrylic acid ester monomers are particularly preferable. For applications such as general construction, low viscosity of compound, low modulus of cured product,
A butyl acrylate-based monomer is more preferable because physical properties such as high elongation, weather resistance and heat resistance are required. On the other hand, in applications where oil resistance and the like are required such as automobiles, a copolymer mainly containing ethyl acrylate is more preferable. This polymer mainly composed of ethyl acrylate is excellent in oil resistance but tends to be slightly inferior in low temperature characteristics (cold resistance). It can be replaced. However, as the ratio of butyl acrylate increases, its good oil resistance is impaired, so for applications requiring oil resistance, the ratio is preferably 40% or less, and further 30% or less. More preferably. Further, it is also preferable to use 2-methoxyethyl acrylate or 2-ethoxyethyl acrylate in which oxygen is introduced into the alkyl group of the side chain in order to improve low-temperature characteristics and the like without impairing oil resistance.
However, since heat resistance tends to be poor due to the introduction of an alkoxy group having an ether bond in the side chain, when heat resistance is required, the ratio is preferably 40% or less. It is possible to obtain a suitable polymer by changing the ratio in consideration of the required physical properties such as oil resistance, heat resistance, low temperature characteristics, etc. according to various uses and required purposes. For example, but not limited to, examples of excellent physical property balance such as oil resistance, heat resistance, and low temperature characteristics include ethyl acrylate / butyl acrylate / 2-methoxyethyl acrylate (40 to 50/20 by weight ratio). 30/30 to 20) copolymer.

In the present invention, these preferred monomers may be copolymerized with other monomers, and further may be block copolymerized, in which case, 40% by weight of these preferred monomers are contained. Is preferred. In the above expression format, for example, (meth) acrylic acid represents acrylic acid and / or methacrylic acid.

Molecular weight distribution of the vinyl polymer of the present invention, that is, weight average molecular weight (Mw) and number average molecular weight (Mn) measured by gel permeation chromatography.
The ratio (Mw / Mn) with is not particularly limited, but is preferably less than 1.8, more preferably 1.7 or less, still more preferably 1.6 or less, and still more preferably 1.5. Or less, particularly preferably 1.4 or less, and most preferably 1.3 or less. GP in the present invention
In the C measurement, usually, chloroform is used as a mobile phase, the measurement is performed with a polystyrene gel column, and the number average molecular weight and the like can be determined in terms of polystyrene.

The number average molecular weight of the vinyl polymer in the present invention is not particularly limited, but it is 500 to 1,000,0 when measured by gel permeation chromatography.
The range of 00 is preferable, 1,000 to 100,000 is more preferable, and 5,000 to 50,000 is further preferable. <Synthesis Method of Main Chain> In the present invention, the synthesis method of the vinyl polymer is not limited, but controlled radical polymerization is preferable, living radical polymerization is more preferable, and atom transfer radical polymerization is particularly preferable. These will be described below. Controlled radical polymerization radical polymerization method is a "general radical polymerization method" in which a monomer having a specific functional group and a vinyl monomer are simply copolymerized by using an azo compound, a peroxide or the like as a polymerization initiator. , A controlled radical polymerization method capable of introducing a specific functional group at a controlled position such as a terminal.

Although the "general radical polymerization method" is a simple method, since a monomer having a specific functional group is stochastically introduced into the polymer by this method, a polymer having a high functionalization rate is used. In order to obtain it, it is necessary to use a considerably large amount of this monomer, and conversely, if used in a small amount, the proportion of the polymer in which this specific functional group is not introduced becomes large. Further, since it is a free radical polymerization, there is a problem that only a polymer having a wide molecular weight distribution and a high viscosity can be obtained.

The "controlled radical polymerization method" is a "chain transfer agent method" in which a vinyl-based polymer having a terminal functional group is obtained by conducting polymerization using a chain transfer agent having a specific functional group. The polymer can be classified as a "living radical polymerization method" in which a polymer having a molecular weight almost as designed can be obtained by growing a polymer-grown terminal without causing a termination reaction.

Although the "chain transfer agent method" makes it possible to obtain a polymer having a high functionalization rate, it requires a considerably large amount of a chain transfer agent having a specific functional group with respect to the initiator, and the treatment There is an economic problem including Further, like the above-mentioned "general radical polymerization method", there is also a problem that since it is a free radical polymerization, a polymer having a wide molecular weight distribution and a high viscosity can be obtained.

Unlike these polymerization methods, the "living radical polymerization method" is a radical polymerization which is difficult to control because it has a high polymerization rate and a termination reaction is likely to occur due to coupling of radicals with each other. The reaction is difficult to occur and the molecular weight distribution is narrow (Mw / Mn is 1.
(About 1 to 1.5) A polymer can be obtained, and the molecular weight can be freely controlled by the charging ratio of the monomer and the initiator.

Therefore, in the "living radical polymerization method", a polymer having a narrow molecular weight distribution and a low viscosity can be obtained, and at the same time, a monomer having a specific functional group can be introduced at almost any position of the polymer. Therefore, it is more preferable as a method for producing the vinyl polymer having the specific functional group.

In the narrow sense of living polymerization,
It is a polymerization in which the terminal always keeps the activity and the molecular chain grows. Living polymerization is also included. The definition in the present invention is also the latter.

The “living radical polymerization method” has been actively researched by various groups in recent years. Examples thereof include, for example, Journal of American Chemical Society (J. Am. Chem. Soc.), 19
1994, 116, 7943, using cobalt porphyrin complexes, Macromolecules, 1994, 2
Vol. 7, p. 7228, which uses a radical scavenger such as a nitroxide compound, "atom transfer radical polymerization" using an organic halide as an initiator and a transition metal complex as a catalyst (Atom Transfer Radii).
Cal Polymerization (ATRP) and the like.

Among the "living radical polymerization methods", the "atom transfer radical polymerization method" in which a vinyl monomer is polymerized using an organic halide or a sulfonyl halide compound as an initiator and a transition metal complex as a catalyst is the above-mentioned "living radical polymerization method". In addition to the features of the radical polymerization method, it has a halogen, etc., which is relatively advantageous for functional group conversion reactions at the terminal, and has a high degree of freedom in the design of initiators and catalysts. It is more preferable as a method for producing a coalescence. As this atom transfer radical polymerization method, for example, Mat
yjaszewski et al., Journal of American Chemical Society (J. Am. Chem. So
c. ) 1995, 117, 5614, Macromolecules 1995.
28, 7901, Science (Science)
e) 1996, 272, 866 pages, WO96 / 30
421 publication, WO97 / 18247 publication, WO98
/ 01480, WO98 / 40415, or Sawamoto et al., Macromolecules (M
acromolecules) 1995, 28, 1
Page 721, JP-A-9-208616, JP-A-8-
No. 41117 is cited.

In the present invention, which living radical polymerization method is used is not particularly limited, but the atom transfer radical polymerization method is preferred.

The living radical polymerization will be described in detail below. Before that, one of the controlled radical polymerizations which can be used for the production of vinyl polymers described later, that is, a chain transfer agent was used. The polymerization will be described.
The radical polymerization using a chain transfer agent (telomer) is not particularly limited, but the following two methods are exemplified as a method for obtaining a vinyl polymer having a terminal structure suitable for the present invention.

A method for obtaining a halogen-terminated polymer by using a halogenated hydrocarbon as a chain transfer agent as disclosed in JP-A-4-132706, and JP-A-61-2.
No. 71306, Japanese Patent No. 2594402 and Japanese Patent Laid-Open No. 54-47782, a hydroxyl group-terminated polymer is obtained by using a hydroxyl group-containing mercaptan or a hydroxyl group-containing polysulfide as a chain transfer agent.

The living radical polymerization will be described below.

First, a method using a radical scavenger such as a nitroxide compound will be described. In this polymerization, generally stable nitroxy free radical (= N
-O.) Is used as a radical capping agent. Such compounds include, but are not limited to, 2,2
6,6-Substituted-1-piperidinyloxy radical or 2,
Nitroxy free radicals from cyclic hydroxyamines such as 2,5,5-substituted-1-pyrrolidinyloxy radicals are preferred. As a substituent, an alkyl group having 4 or less carbon atoms such as a methyl group or an ethyl group is suitable. Specific examples of the nitroxy free radical compound include, but are not limited to, 2,2,6,6-tetramethyl-1-piperidinyloxy radical (TEMPO), 2,2,6,6-tetraethyl-1- Piperidinyloxy radical, 2,
2,6,6-Tetramethyl-4-oxo-1-piperidinyloxy radical, 2,2,5,5-tetramethyl-
1-pyrrolidinyloxy radical, 1,1,3,3-tetramethyl-2-isoindolinyloxy radical,
Examples thereof include N, N-di-t-butylamineoxy radical. A stable free radical such as a galvinoxyl free radical may be used instead of the nitroxy free radical.

The above radical capping agent is used in combination with the radical generator. It is considered that the reaction product of the radical capping agent and the radical generator serves as a polymerization initiator to promote the polymerization of the addition-polymerizable monomer. The combination ratio of both is not particularly limited, but 0.1 to 10 mol of the radical initiator is suitable for 1 mol of the radical capping agent.

As the radical generator, various compounds can be used, but a peroxide capable of generating a radical under the polymerization temperature condition is preferable. Examples of the peroxide include, but are not limited to, diacyl peroxides such as benzoyl peroxide and lauroyl peroxide, dialkyl peroxides such as dicumyl peroxide and di-t-butyl peroxide, diisopropyl peroxydicarbonate, bis Peroxycarbonates such as (4-t-butylcyclohexyl) peroxydicarbonate, t-butylperoxyoctoate, t-
There are alkyl peresters such as butyl peroxybenzoate. Benzoyl peroxide is particularly preferable. Further, a radical generator such as a radical-generating azo compound such as azobisisobutyronitrile may be used instead of peroxide.

Macromolecules 199
5,28, P. As reported in 2993, instead of using a radical capping agent and a radical generator together, an alkoxyamine compound as shown in the following figure may be used as an initiator.

[0046]

[Chemical 1] When an alkoxyamine compound is used as an initiator, if it has a functional group such as a hydroxyl group as shown in the above figure, a polymer having a terminal functional group is obtained. When this is used in the method of the present invention, a polymer having a terminal functional group is obtained.

The polymerization conditions such as the monomer, solvent and polymerization temperature used in the polymerization using the above radical scavenger such as nitroxide compound are not limited, but may be the same as those used for the atom transfer radical polymerization described below. . Atom Transfer Radical Polymerization Next, a more preferred atom transfer radical polymerization method as the living radical polymerization of the present invention will be described.

In this atom transfer radical polymerization, an organic halide, particularly an organic halide having a highly reactive carbon-halogen bond (for example, a carbonyl compound having a halogen at the α-position or a compound having a halogen at the benzyl position), Alternatively, a sulfonyl halide compound or the like is used as an initiator. If Specific _{examples, C 6 H 5 -CH 2 X} , C 6 H 5 -C (H) (X) CH 3, C 6
_{H 5 -C (X) (CH} 3) 2 ( where in the above formula, C ₆ H ₅ is a phenyl group, X is chlorine, bromine or ^{iodine,) R 1 -C (H)} (X) -CO 2 ^{R 2, R 1 -C (CH} 3)
^{_{(X) -CO 2 R 2,}} R 1 -C (H) (X) -C (O)
R ² , R ¹ -C (CH ₃ ) (X) -C (O) R ² , (in the formula, R ¹ and R ² are a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, an aryl group, or an aralkyl group. , X is chlorine, bromine, or iodine) R ¹ -C ₆ H ₄ -SO ₂ X (In the formula, R ¹ is a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, an aryl group, or an aralkyl group, and X is chlorine. , Bromine, or iodine).

As the initiator for atom transfer radical polymerization, an organic halide or a sulfonyl halide compound having a functional group other than the functional group for initiating the polymerization can also be used. In such a case, a vinyl polymer having a functional group at one main chain terminal and a growth terminal structure of atom transfer radical polymerization at the other main chain terminal is produced. Examples of such a functional group include an alkenyl group, a crosslinkable silyl group, a hydroxyl group, an epoxy group, an amino group and an amide group.

The organic halide having an alkenyl group is not limited, and examples thereof include those having a structure represented by the general formula (2). ^{R 4 R 5 C (X)} -R 6 -R 7 -C (R 3) = CH 2 (2) ( wherein, R ³ is hydrogen or a methyl group, R ^4, R ⁵ is hydrogen or a carbon A monovalent alkyl group, an aryl group, or an aralkyl group of the formulas 1 to 20, or those linked to each other at the other end, R ⁶ is —C (O) O— (ester group), —C (O) — (Keto group), or o-, m-, p
-Phenylene group, R ⁷ is a direct bond or has 1 to 2 carbon atoms.
0 is a divalent organic group and may contain one or more ether bonds, and X is chlorine, bromine, or iodine.) Specific examples of the substituents R ⁴ and R ⁵ are hydrogen, methyl group, and ethyl group. , N-propyl group, isopropyl group, butyl group,
Examples thereof include a pentyl group and a hexyl group. R ⁴ and R ⁵ may be connected at the other end to form a cyclic skeleton.

Specific examples of the organic halide having an alkenyl group represented by the general formula (2) include: XCH ₂ C (O) O (CH ₂ ) _n CH = CH ₂ , H ₃ CC
(H) (X) C (O) O (CH ₂ ) _n CH = CH ₂ , (H ₃
C) ₂ C (X) C (O) O (CH ₂ ) _n CH = CH ₂ , CH
₃ CH ₂ C (H) (X) C (O) O (CH ₂ ) _n CH = CH
₂ ,

[0052]

[Chemical 2] (In each formula mentioned above, X is chlorine, bromine or iodine, n represents an integer of _{0~20,) XCH 2 C (O} ) O (CH 2) n O (CH 2) m CH = C
H ₂ , H ₃ CC (H) (X) C (O) O (CH ₂ ) _n O (C
H ₂ ) _m CH = CH ₂ , (H ₃ C) ₂ C (X) C (O) O
(CH ₂ ) _n O (CH ₂ ) _m CH = CH ₂ , CH ₃ CH ₂ C
(H) (X) C (O) O (CH ₂ ) _n O (CH ₂ ) _m CH =
CH ₂ ,

[0053]

[Chemical 3] (In each of the above formulas, X is chlorine, bromine, or iodine.
(Prime, n is an integer of 1 to 20, m is an integer of 0 to 20) o, m, p-XCH₂-C₆H_Four-(CH₂)_n-CH = C
H₂, O, m, p-CH₃C (H) (X) -C₆H_Four-(C
H₂)_n-CH = CH₂, O, m, p-CH₃CH₂C
(H) (X) -C₆H_Four-(CH₂)_n-CH = CH₂, (In each of the above formulas, X is chlorine, bromine, or iodine.
(Prime, n is an integer from 0 to 20) o, m, p-XCH₂-C₆H_Four-(CH₂)_n-O- (C
H₂)_m-CH = CH₂, O, m, p-CH₃C (H)
(X) -C₆H_Four-(CH₂)_n-O- (CH₂)_m-CH =
CH₂, O, m, p-CH₃CH₂C (H) (X) -C₆H
_Four-(CH₂)_n-O- (CH₂)_mCH = CH₂, (In each of the above formulas, X is chlorine, bromine, or iodine.
(Prime, n is an integer of 1 to 20, m is an integer of 0 to 20) o, m, p-XCH₂-C₆H_Four-O- (CH₂)_n-CH
= CH₂, O, m, p-CH₃C (H) (X) -C₆H_Four−
O- (CH₂)_n-CH = CH₂, O, m, p-CH ₃CH
₂C (H) (X) -C₆H_Four-O- (CH₂)_n-CH = C
H₂, (In each of the above formulas, X is chlorine, bromine, or iodine.
(Prime, n is an integer from 0 to 20) o, m, p-XCH₂-C₆H_Four-O- (CH₂)_n-O-
(CH₂)_m-CH = CH₂, O, m, p-CH₃C (H)
(X) -C₆H_Four-O- (CH₂)_n-O- (CH₂) _m-C
H = CH₂, O, m, p-CH₃CH₂C (H) (X)-
C₆H_Four-O- (CH ₂)_n-O- (CH₂)_m-CH = CH
₂, (In each of the above formulas, X is chlorine, bromine, or iodine.
(Prime, n is an integer of 1 to 20, m is an integer of 0 to 20) Further as an organic halide having an alkenyl group
Examples thereof include compounds represented by the general formula (3). H₂C = C (R³) -R⁷-C (R^Four) (X) -R⁸-R^Five  (3) (In the formula, R³, R^Four, R^Five, R⁷, X is the same as above, R
⁸Is a direct bond, -C (O) O- (ester group), -C
(O)-(keto group), or o-, m-, p-phenyl
Represents a len group) R⁷Is a direct bond or a divalent organic group having 1 to 20 carbon atoms
(May contain one or more ether bonds)
Is a direct bond, the halogen-bonded carbon
Vinyl group is bonded to the element,
is there. In this case, carbon-halogenation is caused by adjacent vinyl groups.
R is because the bond is activated.⁸As C (O) O
It is not always necessary to have a group or phenylene group, etc.
It may be a bond. R⁷Is not a direct bond, charcoal
In order to activate the elementary-halogen bond, R⁸As C
(O) O group, C (O) group and phenylene group are preferred.

To specifically exemplify the compound of the general formula (3), CH ₂ ═CHCH ₂ X, CH ₂ ═C (CH ₃ ) CH ₂ X, C
H ₂ ═CHC (H) (X) CH ₃ , CH ₂ ═C (CH ₃ ) C
(H) (X) CH ₃ , CH ₂ = CHC (X) (CH ₃ ) ₂ ,
CH ₂ = CHC (H) (X) C ₂ H ₅ , CH ₂ = CHC
(H) (X) CH ( CH 3) 2, CH 2 = CHC (H)
(X) C ₆ H ₅ , CH ₂ = CHC (H) (X) CH ₂ C
₆ H ₅ , CH ₂ = CHCH ₂ C (H) (X) -CO ₂ R, C
_{H 2 = CH (CH 2)} 2 C (H) (X) -CO 2 R, CH 2
_{= CH (CH 2) 3 C} (H) (X) -CO 2 R, CH 2 = C
_{H (CH 2) 8 C (} H) (X) -CO 2 R, CH 2 = CHC
_{H 2 C (H) (X} ) -C 6 H 5, CH 2 = CH (CH 2) 2 C
_{(H) (X) -C 6} H 5, CH 2 = CH (CH 2) 3 C
(H) (X) -C ₆ H ₅ , (in the above formulas, X is chlorine, bromine, or iodine, R is an alkyl group having 1 to 20 carbon atoms, an aryl group, an aralkyl group) and the like. it can.

[0055] Specific examples of a halogenated sulfonyl compound having an alkenyl group, o-, m-, p-CH 2 = CH- (CH 2) n -C 6 H 4 -
_{SO 2 X, o-, m-,} p-CH 2 = CH- (CH 2) n -
O—C ₆ H ₄ —SO ₂ X, (in each of the above formulas, X is chlorine, bromine, or iodine, and n is an integer of 0 to 20) and the like.

Organic halogen having the crosslinkable silyl group
The compound is not particularly limited and is represented by, for example, the general formula (4).
An example is one having a structure. R^FourR^FiveC (X) -R⁶-R⁷-C (H) (R³) CH₂-[Si (R⁹)_2-b(Y)_b O]_m-Si (R^Ten)_3-a(Y)_a  (4) (In the formula, R³, R^Four, R^Five, R⁶, R⁷, X is the same as above,
R⁹, R^TenAre all alkyl groups having 1 to 20 carbon atoms,
Aryl group, aralkyl group, or (R ')₃SiO-
(R 'is a monovalent hydrocarbon group having 1 to 20 carbon atoms,
The three R's may be the same or different.
And a triorganosiloxy group represented by⁹Well
Or R^TenWhen two or more exist, they are the same
May be different. Y is a hydroxyl group or water
A decomposable group is shown, and when two or more Y are present, they are the same.
It may be one or different. a is 0, 1,
2, or 3, and b represents 0, 1, or 2.
m is an integer of 0-19. However, if a + mb ≧ 1
Be satisfied) To specifically exemplify the compound of the general formula (4), XCH₂C (O) O (CH₂)_nSi (OCH₃)₃, CH₃
C (H) (X) C (O) O (CH₂)_nSi (OC
H₃)₃, (CH₃)₂C (X) C (O) O (CH₂)_nSi
(OCH₃)₃, XCH₂C (O) O (CH₂)_nSi (C
H₃) (OCH₃)₂, CH ₃C (H) (X) C (O) O
(CH₂)_nSi (CH₃) (OCH₃)₂, (CH₃)₂C
(X) C (O) O (CH₂)_nSi (CH₃) (OCH₃)
₂, (In each of the above formulas, X is chlorine, bromine, iodine, and n is
An integer from 0 to 20) XCH₂C (O) O (CH₂)_nO (CH₂)_mSi (OC
H₃)₃, H₃CC (H) (X) C (O) O (CH₂)_nO
(CH₂)_mSi (OCH₃)₃, (H₃C)₂C (X) C
(O) O (CH₂)_nO (CH₂)_mSi (OCH₃)₃, C
H₃CH₂C (H) (X) C (O) O (CH₂)_nO (CH
₂)_mSi (OCH₃)₃, XCH₂C (O) O (CH₂)_n
O (CH₂)_mSi (CH₃) (OCH₃)₂, H₃CC
(H) (X) C (O) O (CH₂)_nO (CH₂)_m-Si
(CH₃) (OCH₃)₂, (H₃C)₂C (X) C (O)
O (CH₂)_nO (CH₂)_m-Si (CH₃) (OCH₃)
₂, CH₃CH ₂C (H) (X) C (O) O (CH₂)_nO
(CH₂)_m-Si (CH₃) (OCH₃)₂, (In each of the above formulas, X is chlorine, bromine, iodine, and n is
1 to 20 integer, m is 0 to 20 integer) o, m, p-XCH₂-C₆H_Four-(CH₂)₂Si (OC
H₃)₃, O, m, p-CH₃C (H) (X) -C₆H_Four−
(CH₂)₂Si (OCH₃)₃, O, m, p-CH₃CH₂
C (H) (X) -C₆H_Four-(CH₂)₂Si (OC
H₃)₃, O, m, p-XCH₂-C₆H_Four-(CH₂)₃S
i (OCH₃)₃, O, m, p-CH₃C (H) (X)-
C₆H_Four-(CH₂)₃Si (OCH₃)₃, O, m, p-C
H₃CH₂C (H) (X) -C₆H_Four-(CH₂)₃Si (O
CH₃)₃, O, m, p-XCH₂-C₆H_Four-(CH₂)₂
-O- (CH₂)₃Si (OCH₃)₃, O, m, p-CH
₃C (H) (X) -C₆H_Four-(CH₂)₂-O- (CH₂)
₃Si (OCH₃)₃, O, m, p-CH₃CH₂C (H)
(X) -C₆H_Four-(CH₂)₂-O- (CH₂)₃Si (O
CH₃)₃, O, m, p-XCH₂-C₆H_Four-O- (C
H₂)₃Si (OCH₃)₃, O, m, p-CH₃C (H)
(X) -C₆H_Four-O- (CH₂)₃Si (OCH₃)₃,
o, m, p-CH₃CH₂C (H) (X) -C₆H_Four-O-
(CH₂)₃-Si (OCH₃)₃, O, m, p-XCH₂
-C₆H_Four-O- (CH₂)₂-O- (CH₂)₃-Si (O
CH₃)₃, O, m, p-CH₃C (H) (X) -C₆H_Four
-O- (CH₂)₂-O- (CH₂)₃Si (OCH₃)₃,
o, m, p-CH₃CH₂C (H) (X) -C₆H_Four-O-
(CH₂)₂-O- (CH₂)₃Si (OCH₃)₃, (In each of the above formulas, X is chlorine, bromine, or iodine.
Bare) Etc.

Examples of the organic halide having a crosslinkable silyl group further include those having a structure represented by the general formula (5). ^{_{(R 10) 3-a (}} Y) a Si- [OSi (R 9) 2-b (Y) b] m -CH 2 -C (H) (R 3) -R 7 -C (R 4) ( ^{X) -R 8 -R 5 (5} ) ( ^{wherein, R 3, R 4, R} 5, R 7, R 8, R 9, R 10, a,
b, m, X, and Y are the same as above). To specifically exemplify such a compound, (CH ₃ O) ₃ SiCH ₂ CH ₂ C (H) (X) C ₆ H ₅ ,
(CH ₃ O) ₂ (CH ₃ ) SiCH ₂ CH ₂ C (H) (X)
_{C 6 H 5, (CH 3} O) 3 Si (CH 2) 2 C (H) (X) -
CO ₂ R, (CH ₃ O) ₂ (CH ₃ ) Si (CH ₂ ) ₂ C
_{(H) (X) -CO 2} R, (CH 3 O) 3 Si (CH 2) 3
C (H) (X) -CO 2 R, (CH 3 O) 2 (CH 3) Si
_{(CH 2) 3 C (H} ) (X) -CO 2 R, (CH 3 O) 3 S
_{i (CH 2) 4 C (} H) (X) -CO 2 R, (CH 3 O) 2
_{(CH 3) Si (CH 2} ) 4 C (H) (X) -CO 2 R,
_{(CH 3 O) 3 Si (} CH 2) 9 C (H) (X) -CO
₂ R, (CH ₃ O) ₂ (CH ₃ ) Si (CH ₂ ) ₉ C (H)
_{(X) -CO 2 R, (} CH 3 O) 3 Si (CH 2) 3 C
_{(H) (X) -C 6} H 5, (CH 3 O) 2 (CH 3) Si
_{(CH 2) 3 C (H} ) (X) -C 6 H 5, (CH 3 O) 3 Si
_{(CH 2) 4 C (H} ) (X) -C 6 H 5, (CH 3 O) 2 (C
_{H 3) Si (CH 2)} 4 C (H) (X) -C 6 H 5, ( in each formula above, X is chlorine, bromine or iodine, R represents an alkyl group having 1 to 20 carbon atoms, aryl Group, aralkyl group) and the like.

The organic halide having a hydroxyl group or the sulfonyl halide compound is not particularly limited, and the following compounds are exemplified. _{HO- (CH 2) n -OC (} O) C (H) (R) (X) ( wherein, X is chlorine, bromine or iodine, R represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, aryl Group, aralkyl group, n is an integer of 1 to 20) The organic halide having the above amino group or the sulfonyl halide compound is not particularly limited, and examples thereof include the following. _{H 2 N- (CH 2) n} -OC (O) C (H) (R) (X) ( wherein, X is chlorine, bromine or iodine, R represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, , An aryl group, an aralkyl group, and n is an integer of 1 to 20) The organic halide having the epoxy group or the sulfonyl halide compound is not particularly limited, and examples thereof include the following.

[0059]

[Chemical 4] (In the formula, X is chlorine, bromine, or iodine, R is a hydrogen atom, or an alkyl group having 1 to 20 carbon atoms, an aryl group, an aralkyl group, and n is an integer of 1 to 20.) To obtain a polymer having one or more organic halides having two or more starting points,
Alternatively, a sulfonyl halide compound is preferably used as an initiator. To give a concrete example,

[0060]

[Chemical 5]

[0061]

[Chemical 6] Etc.

There are no particular restrictions on the vinyl monomer used in this polymerization, and all of those already exemplified can be preferably used.

With a transition metal complex used as a polymerization catalyst
It is not particularly limited, but it is preferable that
Group 8, Group 8, Group 10, Group 10 or Group 11 elements as the central metal
And a metal complex. More preferred is 0 valence
Copper, monovalent copper, divalent ruthenium, divalent iron or divalent
The nickel complex of is mentioned. Among them, the copper complex
preferable. If a monovalent copper compound is specifically exemplified,
Cuprous chloride, cuprous bromide, cuprous iodide, cyanide
Copper, cuprous oxide, cuprous perchlorate and the like. Copper compound
When used, 2,2'-bipyridine is used to enhance the catalytic activity.
Zil and its derivatives, 1,10-phenanthroline and
Its derivatives, tetramethylethylenediamine, pentame
Tyldiethylenetriamine, hexamethyltris (2-
Addition of ligands such as polyamines such as aminoethyl) amine
To be done. A preferred ligand is a nitrogen-containing compound, and
A preferred ligand is a chelate-type nitrogen-containing compound,
Further preferred ligands are N, N, N ', N ", N" -peptone.
N-methyldiethylenetriamine. In addition, bivalent
Ruthenium chloride tristriphenylphosphine complex
(RuCl₂(PPh₃)₃) Is also suitable as a catalyst.
When using a ruthenium compound as a catalyst, an activator
Aluminum alkoxides are added as. Change
In addition, divalent iron bistriphenylphosphine complex (Fe
Cl₂(PPh₃)₂) Bivalent nickel bistrife
Nylphosphine complex (NiCl₂(PPh₃) ₂), And
And bivalent nickel bistributylphosphine complex
(NiBr₂(PBu₃)₂) Is also suitable as a catalyst
It

The polymerization can be carried out without solvent or in various solvents. Examples of the solvent include hydrocarbon solvents such as benzene and toluene, ether solvents such as diethyl ether and tetrahydrofuran, halogenated hydrocarbon solvents such as methylene chloride and chloroform, ketone solvents such as acetone, methyl ethyl ketone and methyl isobutyl ketone. Solvents, alcohol solvents such as methanol, ethanol, propanol, isopropanol, n-butyl alcohol, tert-butyl alcohol, nitrile solvents such as acetonitrile, propionitrile and benzonitrile, ester solvents such as ethyl acetate and butyl acetate, Examples thereof include carbonate solvents such as ethylene carbonate and propylene carbonate, which may be used alone or in admixture of two or more.

Also, although not limited, the polymerization is carried out at 0 ° C to 2 ° C.
It can be carried out in the range of 00 ° C, preferably 50 to 15
It is 0 ° C.

The atom transfer radical polymerization of the present invention also includes so-called reverse atom transfer radical polymerization. Reverse atom transfer radical polymerization is a high oxidation state when a normal atom transfer radical polymerization catalyst generates a radical, for example, Cu (II ′) when Cu (I) is used as a catalyst.
On the other hand, a general radical initiator such as a peroxide is allowed to act, and as a result, an equilibrium state similar to atom transfer radical polymerization is produced (Macromolecule
es 1999, 32, 2872). <Functional group> Number of crosslinkable silyl groups The number of crosslinkable silyl groups of the vinyl polymer is not particularly limited, but from the viewpoint of curability of the composition and physical properties of the cured product, it has one or more on average. It is preferable that the number is 1.1 or more and 4.0 or less, and further preferably 1.
It is 2 or more and 3.5 or less. Position of the crosslinkable silyl group If the cured product obtained by curing the curable composition of the present invention is particularly required to have rubber-like properties, a large inter-crosslinking point molecular weight that greatly affects rubber elasticity can be obtained. At least one of the crosslinkable functional groups is preferably at the end of the molecular chain. More preferably, it has all the crosslinkable functional groups at the end of the molecular chain.

A method for producing a vinyl polymer having at least one crosslinkable silyl group at the molecular end, especially a (meth) acrylic polymer, is disclosed in JP-B-3-14068 and JP-B-4-55444. JP-A-6-2119
No. 22, for example. However, since these methods are free radical polymerization methods using the above-mentioned "chain transfer agent method", the resulting polymer has a relatively high proportion of crosslinkable silyl groups at the ends of the molecular chain, while Mw / M
The value of the molecular weight distribution represented by n is generally as large as 2 or more,
It has a problem of high viscosity. Therefore, in order to obtain a vinyl polymer having a narrow molecular weight distribution and a low viscosity and having a crosslinkable silyl group at a molecular chain terminal at a high ratio, the above-mentioned "living radical polymerization method" is used. It is preferable.

These functional groups will be described below. The crosslinking silyl group of the crosslinkable silyl group present invention, the general formula (6); - [Si ( R 9) 2-b (Y) b O] m -Si (R 10) 3-a (Y) a (6) {In the formula, R ⁹ and R ¹⁰ are each an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, and 7 to 20 carbon atoms.
Or an aralkyl group of (R ′) ₃ SiO— (R ′ is a monovalent hydrocarbon group having 1 to 20 carbon atoms and has 3 R ′
May be the same or different) and R ⁹ or R ¹⁰ is 2
When there are one or more, they may be the same or different. Y represents a hydroxyl group or a hydrolyzable group, and when two or more Y are present, they may be the same or different. a is 0, 1, 2, or 3
And b represents 0, 1, or 2. m is 0 to 19
Is an integer. However, it is assumed that a + mb ≧ 1 is satisfied. } The group represented by these is mentioned.

Examples of the hydrolyzable group include commonly used groups such as hydrogen atom, alkoxy group, acyloxy group, ketoximate group, amino group, amido group, aminooxy group, mercapto group and alkenyloxy group. To be Among these, an alkoxy group, an amide group, and an aminooxy group are preferable, but an alkoxy group is particularly preferable in terms of mild hydrolyzability and easy handling. Among the alkoxy groups, those having a smaller number of carbon atoms have higher reactivity, and the reactivity becomes lower in the order of methoxy group> ethoxy group> propoxy group, and can be selected according to the purpose and application.

The hydrolyzable group and the hydroxyl group can be bonded to one silicon atom in the range of 1 to 3 and (a + Σ
The range of b) is preferably 1 to 5. When two or more hydrolyzable groups or hydroxyl groups are bonded to the crosslinkable silyl group, they may be the same or different. The number of silicon atoms forming the crosslinkable silyl group is 1 or more, but in the case of silicon atoms linked by a siloxane bond or the like, it is preferably 20 or less. In particular, the general formula ^{(7) -Si (R 10)} 3-a (Y) a (7) ( wherein, R ^10, Y, a is the same. As above) is crosslinkable silyl group represented by Get Is preferable because it is easy.

Although not particularly limited, in consideration of curability, a is preferably 2 or more.

As the vinyl polymer having a crosslinkable silyl group, a polymer having a hydrolyzable silicon group in which two hydrolyzable groups are bonded per silicon atom is often used. The curing rate is not sufficient when a very fast curing rate is required, such as when used at low temperatures, such as for adhesives, and when the flexibility after curing is desired, reduce the crosslinking density. In some cases, tackiness (surface tack) was caused due to insufficient crosslink density. In that case, it is preferable that a is 3 (for example, a trimethoxy functional group).

Further, those having three a's (for example, trimethoxy functional group) have faster curability than those having two (for example, dimethoxy functional group), but storage stability and mechanical properties (elongation, etc.)
As for, there are cases where the two are better. In order to balance curability and physical properties, two (for example, dimethoxy functional group) and three (for example, trimethoxy functional group) may be used in combination.

For example, when Y is the same, the more a, the more Y
Therefore, the curability and mechanical properties of the cured product can be controlled by selecting various Y and a, and it can be selected according to the purpose and application. The following method of introducing the crosslinkable silyl group, will be described method of introducing the crosslinkable silyl group into the vinyl polymer of the present invention, but is not limited thereto.

First, a method of introducing a crosslinkable silyl group, an alkenyl group and a hydroxyl group by converting a terminal functional group will be described. Since these functional groups can be precursors to each other, they will be described in order from the crosslinkable silyl group.

As a method of synthesizing a vinyl polymer having at least one crosslinkable silyl group, (A) a hydrosilane compound having a crosslinkable silyl group in a vinyl polymer having at least one alkenyl group,
Method of addition in the presence of a hydrosilylation catalyst (B) Compound having a group capable of reacting with a hydroxyl group, such as a compound having a crosslinkable silyl group and an isocyanate group in one molecule in a vinyl polymer having at least one hydroxyl group (C) A method of reacting a compound having both a polymerizable alkenyl group and a crosslinkable silyl group in a molecule when a vinyl polymer is synthesized by radical polymerization (D) A vinyl polymer by radical polymerization A method of using a chain transfer agent having a crosslinkable silyl group when synthesizing a polymer (E) at least 1 carbon-halogen bond having high reactivity is used.
A method of reacting a vinyl-based polymer having one unit with a compound having a crosslinkable silyl group and a stable carbanion in one molecule;
And so on.

The vinyl polymer having at least one alkenyl group used in the method (A) can be obtained by various methods. The synthesis method is illustrated below, but the synthesis method is not limited thereto.

(A-a) When synthesizing a vinyl polymer by radical polymerization, for example, a polymerizable alkenyl group and a low-polymerizable alkenyl group in one molecule as represented by the following general formula (9) are used. A method of reacting a compound having both as a second monomer. ^{_{H 2 C = C (R 14}} ) -R 15 -R 16 -C (R 17) = CH 2 (9) ( wherein, R ¹⁴ represents a hydrogen or a methyl group, R ¹⁵ is -C
(O) O-, or o-, m-, p-phenylene group, R ¹⁶ represents a direct bond or a divalent organic group having 1 to 20 carbon atoms, and contains at least one ether bond. You may stay. R ¹⁷ is hydrogen, or an alkyl group having 1 to 20 carbon atoms,
It represents an aryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms) It should be noted that there is no limitation on the timing of reacting a compound having both a polymerizable alkenyl group and a low polymerizable alkenyl group in one molecule. In particular, in the case of expecting rubber-like properties in living radical polymerization, it is preferable to react as the second monomer at the end of the polymerization reaction or after the reaction of a predetermined monomer.

(Ab) When a vinyl polymer is synthesized by living radical polymerization, for example, 1,5-hexadiene, 1,7-octadiene, 1, A method of reacting a compound having at least two alkenyl groups having low polymerizability such as 9-decadiene.

(Ac) Various organic compounds having an alkenyl group such as organotin such as allyltributyltin and allyltrioctyltin in a vinyl polymer having at least one highly reactive carbon-halogen bond. A method of reacting a metal compound to replace halogen.

(A-d) A vinyl polymer having at least one highly reactive carbon-halogen bond is reacted with a stabilized carbanion having an alkenyl group as represented by the general formula (10) to give halogen. How to replace. ^{M + C - (R 18)} (R 19) -R 20 -C (R 17) = CH 2 (10) ( wherein, R ¹⁷ is as defined above, R ^18, R ¹⁹ together carbanion C ^- stable Is an electron-withdrawing group, or one is the electron-withdrawing group and the other is hydrogen or a carbon number of 1 to 10
Represents an alkyl group or a phenyl group. R ²⁰ represents a direct bond or a divalent organic group having 1 to 10 carbon atoms and may contain one or more ether bonds. M ⁺ represents an alkali metal ion or a quaternary ammonium ion) The electron withdrawing group of R ¹⁸ and R ¹⁹ is —CO ₂ R or —C.
Those having a structure of (O) R and —CN are particularly preferable.

(Ae) A vinyl-based polymer having at least one highly reactive carbon-halogen bond is reacted with a metal element such as zinc or an organometallic compound to prepare an enolate anion. An electrophilic compound having an alkenyl group, such as an alkenyl group-containing compound having a leaving group such as a halogen or an acetyl group, a carbonyl compound having an alkenyl group, an isocyanate compound having an alkenyl group, and an acid halide having an alkenyl group. How to react.

(Af) A vinyl polymer having at least one highly reactive carbon-halogen bond is added to an oxyanion or carboxy having an alkenyl group as represented by the general formula (11) or (12). A method of substituting halogen by reacting a rate anion. ^{_{H 2 C = C (R 17}} ) -R 21 -O - M + (11) ( wherein, R ^17, M ⁺ is the same .R ²¹ above are 1 to 2 carbon atoms
0 bivalent may contain one or more ether bonds with organic _{groups) H 2 C = C (R} 17) -R 22 -C (O) O - M + (12) ( wherein, R ¹⁷ and M ⁺ are the same as above, and R ²² is a direct bond or a divalent organic group having 1 to 20 carbon atoms and may contain one or more ether bonds).

The above-mentioned method for synthesizing a vinyl polymer having at least one highly reactive carbon-halogen bond is carried out by an atom transfer radical using the above-mentioned organic halide as an initiator and a transition metal complex as a catalyst. Examples of the polymerization method include, but are not limited to, the following.

The vinyl polymer having at least one alkenyl group can also be obtained from a vinyl polymer having at least one hydroxyl group, and the methods exemplified below can be used, but are not limited thereto. is not.
A method of reacting a hydroxyl group of a vinyl polymer having at least one hydroxyl group with a base such as (A-g) sodium methoxide and reacting it with an alkenyl group-containing halide such as allyl chloride.

(A-h) A method of reacting an alkenyl group-containing isocyanate compound such as allyl isocyanate.

(Ai) A method of reacting an alkenyl group-containing acid halide such as (meth) acrylic acid chloride in the presence of a base such as pyridine.

(Aj) A method of reacting an alkenyl group-containing carboxylic acid such as acrylic acid in the presence of an acid catalyst; and the like.

In the present invention, when the halogen does not directly participate in the method of introducing an alkenyl group such as (Aa) and (Ab), a vinyl polymer should be synthesized by the living radical polymerization method. Is preferred. The method (Ab) is more preferable because it is easier to control.

When an alkenyl group is introduced by converting the halogen of a vinyl polymer having at least one highly reactive carbon-halogen bond, an organic halogen having at least one highly reactive carbon-halogen bond. Compound, or a sulfonyl halide compound as an initiator,
Obtained by radical polymerization of a vinyl monomer using a transition metal complex as a catalyst (atom transfer radical polymerization method),
At least one highly reactive carbon-halogen bond at the end
It is preferable to use a vinyl polymer having a number of individual units. The method (Af) is more preferable because it is easier to control.

The hydrosilane compound having a crosslinkable silyl group is not particularly limited, but a typical example is a compound represented by the general formula (13). _{^{H- [Si (R 9) 2}} -b (Y) b O] m -Si (R 10) 3-a (Y) a (13) { wherein, R ^9, R ¹⁰ are both carbons 1 ~ 20 alkyl groups, C6-20 aryl groups, C7-20
Or an aralkyl group of (R ′) ₃ SiO— (R ′ is a monovalent hydrocarbon group having 1 to 20 carbon atoms and has 3 R ′
May be the same or different) and R ⁹ or R ¹⁰ is 2
When there are one or more, they may be the same or different. Y represents a hydroxyl group or a hydrolyzable group, and when two or more Y are present, they may be the same or different. a is 0, 1, 2, or 3
And b represents 0, 1, or 2. m is 0 to 19
Is an integer. However, it is assumed that a + mb ≧ 1 is satisfied. } Of these hydrosilane compounds, particularly the general formula (1
4) A compound having a crosslinkable group represented by H-Si (R ¹⁰ ) _3-a (Y) _a (14) (wherein R ¹⁰ , Y and a are the same as above) is preferable from the viewpoint of easy availability. .

When the above-mentioned hydrosilane compound having a crosslinkable silyl group is added to the alkenyl group, a transition metal catalyst is usually used. As the transition metal catalyst, for example, platinum simple substance, alumina, silica, a dispersion of platinum solid in a carrier such as carbon black, chloroplatinic acid, a complex of chloroplatinic acid and alcohol, aldehyde, ketone,
Examples thereof include a platinum-olefin complex and a platinum (0) -divinyltetramethyldisiloxane complex. Examples of catalysts other than platinum compounds include RhCl (PPh ₃ ) ₃ and RhC.
l ₃ , RuCl ₃ , IrCl ₃ , FeCl ₃ , AlCl ₃ ,
PdCl ₂ · H ₂ O, NiCl ₂ , TiCl _{4 and the} like can be mentioned.

The methods for producing the vinyl polymer having at least one hydroxyl group used in the methods (B) and (A-g) to (A-j) are exemplified by the following methods. It is not limited to.

(Ba) When synthesizing a vinyl polymer by radical polymerization, for example, a compound having a polymerizable alkenyl group and a hydroxyl group in one molecule as shown in the following general formula (15) is used. Method of reacting as a monomer of 2. ^{_{H 2 C = C (R 14}} ) -R 15 -R 16 -OH (15) ( ^{wherein, R 14, R 15, R} 16 are as defined above) The polymerization of the alkenyl group and a hydroxyl group per molecule There is no limitation on the timing of reacting the compound having both of the two, but particularly in living radical polymerization, when rubber properties are expected, the reaction is performed as the second monomer at the end of the polymerization reaction or after completion of the reaction of a predetermined monomer. Is preferred.

(Bb) When synthesizing a vinyl polymer by living radical polymerization, alkenyl such as 10-undecenol, 5-hexenol or allyl alcohol is added at the end of the polymerization reaction or after the reaction of a predetermined monomer. A method of reacting alcohol.

(B-c) For example, Japanese Unexamined Patent Publication No. 5-262808
A method of radically polymerizing a vinyl-based monomer by using a large amount of a chain transfer agent containing a hydroxyl group such as a polysulfide containing a hydroxyl group as shown in.

(Bd) For example, JP-A-6-23991
2. A method of radically polymerizing a vinyl monomer using hydrogen peroxide or a hydroxyl group-containing initiator as shown in JP-A-8-283310.

(Be) For example, Japanese Patent Laid-Open No. 6-116312
A method of radically polymerizing a vinyl-based monomer by using an alcohol in excess as shown in 1).

(Bf) For example, JP-A-4-132706
And the like, a method of introducing a hydroxyl group at the terminal by hydrolyzing or reacting a halogen of a vinyl polymer having at least one highly reactive carbon-halogen bond with a hydroxyl group-containing compound.

(Bg) A vinyl polymer having at least one highly reactive carbon-halogen bond is reacted with a stabilized carbanion having a hydroxyl group as represented by the general formula (16) to substitute halogen. how to. ^{M + C - (R 18)} (R 19) -R 20 -OH (16) as an electron withdrawing group ^{(wherein, R 18, R 19, R} 20, are the same) R ^18, R ¹⁹ are, -CO ₂ R, -C
Those having a structure of (O) R and —CN are particularly preferable.

(Bh) A vinyl polymer having at least one highly reactive carbon-halogen bond is reacted with a metal element such as zinc or an organometallic compound to prepare an enolate anion. A method of reacting aldehydes or ketones later.

(Bi) A vinyl polymer having at least one carbon-halogen bond having high reactivity is added to an oxyanion or carboxylate having a hydroxyl group as represented by the general formula (17) or (18). A method of substituting halogen by reacting an anion. ^{HO-R 21 -O - M +} (17) ( wherein, R ²¹ and M ⁺ are the ^{same) HO-R 22 -C (O} ) O - M + (18) ( wherein, R ²² and M ⁽⁺ Is the same as above) (B-j) When synthesizing a vinyl-based polymer by living radical polymerization, at the end of the polymerization reaction or after the reaction of a predetermined monomer, as a second monomer, polymerizable in one molecule. A method of reacting a compound having a low alkenyl group and a hydroxyl group.

Although such a compound is not particularly limited, examples thereof include compounds represented by the general formula (19). ^{_{H 2 C = C (R 14}} ) -R 21 -OH (19) ( wherein, R ¹⁴ and R ²¹ are the same as those described above.) In particular limitation is imposed on the compound represented by the above general formula (19) However, it is easy to obtain, so 10-
Alkenyl alcohols such as undecenol, 5-hexenol, allyl alcohol are preferred. Etc.

In the present invention, when the halogen does not directly participate in the method of introducing a hydroxyl group such as (Ba) to (Be) and (Bj), a living radical polymerization method is used for vinyl-based polymerization. It is preferable to synthesize a polymer. The method (Bb) is more preferable because it is easier to control.

When a hydroxyl group is introduced by converting the halogen of a vinyl polymer having at least one highly reactive carbon-halogen bond, an organic halide,
Alternatively, a vinyl-based compound having at least one highly reactive carbon-halogen bond at a terminal, which is obtained by radically polymerizing a vinyl-based monomer (atom transfer radical polymerization method) using a sulfonyl halide compound as an initiator and a transition metal complex as a catalyst. Preference is given to using polymers. The method (Bi) is more preferable because it is easier to control.

Examples of the compound having a group capable of reacting with a crosslinkable silyl group and a hydroxyl group such as an isocyanate group in one molecule are, for example, γ-isocyanatopropyltrimethoxysilane, γ-isocyanatopropylmethyldimethoxysilane, γ-isocyanatopropyltriethoxysilane and the like can be mentioned, and if necessary, a generally known catalyst for urethanization reaction can be used.

The compound having a polymerizable alkenyl group and a crosslinkable silyl group in one molecule used in the method (C) includes, for example, trimethoxysilylpropyl (meth) acrylate and methyldimethoxysilylpropyl (meth) acrylate. Examples include those represented by the following general formula (20). ^{_{H 2 C = C (R 14}} ) -R 15 -R 23 - [Si (R 9) 2-b (Y) b O] m -Si (R 10) 3-a (Y) a (20) ( Formula In the formula, R ⁹ , R ¹⁰ , R ¹⁴ , R ¹⁵ , Y, a, b, and m are the same as above, and R ²³ is a direct bond or a divalent organic group having 1 to 20 carbon atoms. It may contain an ether bond.) There is no particular limitation on the timing of reacting a compound having both a polymerizable alkenyl group and a crosslinkable silyl group in one molecule, but living radical polymerization is expected to provide rubber-like properties. In that case, it is preferable to react as the second monomer at the end of the polymerization reaction or after the reaction of the predetermined monomer.

The chain transfer agent having a crosslinkable silyl group used in the chain transfer agent method (D) is, for example, Japanese Patent Publication No.
-14068 and Japanese Patent Publication No. 4-55444, mercaptans having a crosslinkable silyl group, hydrosilanes having a crosslinkable silyl group and the like can be mentioned.

The method of synthesizing the vinyl polymer having at least one highly reactive carbon-halogen bond used in the method (E) is carried out by using an organic halide as described above as an initiator. An atom transfer radical polymerization method using a metal complex as a catalyst can be mentioned, but the method is not limited thereto. Examples of the compound having a crosslinkable silyl group and a stabilizing carbanion in one molecule include compounds represented by the general formula (21). ^{M + C - (R 18)} (R 19) -R 24 -C (H) (R 25) -CH 2 - [Si (R 9) 2-b (Y) b O] m -Si (R 10) _3-a (Y) _a (21) (In the formula, R ⁹ , R ¹⁰ , R ¹⁸ , R ¹⁹ , Y, a, b and m are the same as above. R ²⁴ is a direct bond or has 1 to 1 carbon atoms. R ²⁵ is hydrogen, or an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, or 7 to 10 carbon atoms, which is a divalent organic group having 10 or more and may contain one or more ether bonds.
The aralkyl group of is shown. ) Examples of the electron withdrawing group for R ¹⁸ and R ¹⁹ include —CO ₂ R and —C.
Those having a structure of (O) R and —CN are particularly preferable. << About polyether polymer (II) having 1.2 or less crosslinkable silyl groups on average >><Mainchain> In the curable composition of the present invention, 1.
The main chain structure of the polyether polymer (II) having two or less crosslinkable silyl groups is represented by the general formula — (— R—O—) n— (wherein R is 2 having 1 to 4 carbon atoms). A polyoxyalkylene represented by a valent alkylene group) is preferable. Specific examples include polyoxyethylene, polyoxypropylene, polyoxybutylene, polyoxyhexylene, polyoxytetramethylene, and copolymers thereof. Among them, polyoxypropylene is preferable because it is easily available. The polyoxypropylene may be linear or branched, or a mixture thereof. Among them, polyoxypropylene diol, polyoxypropylene triol and mixtures thereof are particularly preferable. Further, other monomer units may be contained, but it is preferable that the monomer unit represented by the above formula is present in the polymer in an amount of 50% by weight or more, and preferably 80% by weight or more.

The main chain may or may not contain a urethane bond or a urea bond.

The molecular structure of the polyether polymer (II) of the present invention differs depending on the intended use and the desired properties.
The method described in JP-A-63-112642 can be used.
From the viewpoint of achieving both low viscosity (workability) of the curable composition and low modulus and high elongation of the cured product obtained by curing it, the curable composition has a high molecular weight, a small molecular weight distribution (Mw / Mn), and a functional group It is preferably an oxyalkylene polymer having Specifically, the number average molecular weight is 300 or more 1
It is preferably 2,000 or less, more preferably 300 or more and 8,000 or less. Further, Mw / Mn is preferably 1.6 or less, more preferably 1.5 or less. It is difficult to obtain such a polyoxyalkylene by an ordinary polymerization method (anionic polymerization method using caustic alkali) or a chain extension reaction method of this polymer, but for example, a cesium metal catalyst, JP-A-61-197631. , JP-A-61-215
622, JP-A-61-215623 and JP-A-6-215623.
Porphyrin / aluminum complex catalysts exemplified in 1-218632 and the like, JP-B-46-27250 and JP-B-59.
It can be obtained by a method using a complex metal cyanide complex catalyst exemplified in No. -15336 or the like or a catalyst comprising a polyphosphazene salt exemplified in JP-A-10-273512. Practically, a method using a complex metal cyanide complex catalyst is preferable. <Crosslinkable silyl group> In the polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups of the present invention, the bond between the crosslinkable silyl group and the polyether moiety is It is preferably an alkylene group such as trimethylene and tetramethylene so that at least 3 carbon atoms are present between the silicon atom of the silyl group and the ether oxygen atom of the polyether moiety because it has hydrolyzability. . Number and Position of Crosslinkable Silyl Group The number of crosslinkable silyl groups of the polyether polymer (II) in the present invention is 1.2 or less on average. On the other hand, if the number of silyl groups is too small, the effect of the present invention will not be exhibited, so it is preferable that the number is at least 0.1 or more,
The number is more preferably 0.3 or more, still more preferably 0.5 or more. It is preferably at the end of the molecular chain. Further, the crosslinkable silyl group of the polyether polymer (II) is preferably one having only one end in the main chain and not having the other end, but it is 1.2 on average.
The number is not particularly limited as long as it is equal to or less than the number. Method for Introducing Crosslinkable Silyl Group The polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups of the present invention is a polyether polymer having a functional group with a crosslinkable silyl group. It is preferably obtained by introduction.

The introduction of the crosslinkable silyl group may be carried out by a known method. That is, for example, the following methods can be mentioned. For example, in the case of an oxyalkylene polymer obtained by using a complex metal cyanide complex catalyst, JP-A-3-72527.
In the case of an oxyalkylene polymer obtained by using a polyphosphazene salt and active hydrogen as a catalyst, JP-A-11-60 is used.
723.

(1) An oxyalkylene polymer having a functional group such as a hydroxyl group at the terminal is reacted with an organic compound having an active group and an unsaturated group reactive with this functional group, or an unsaturated group An unsaturated group-containing oxyalkylene polymer is obtained by copolymerization with the contained epoxy compound.
Next, hydrosilane having a crosslinkable silyl group is allowed to act on the obtained reaction product for hydrosilylation.

(2) The unsaturated group-containing oxyalkylene polymer obtained in the same manner as in the method (1) is reacted with a compound having a mercapto group and a crosslinkable silyl group.

(3) An oxyalkylene polymer having a hydroxyl group, a functional group such as an epoxy group or an isocyanate group (hereinafter referred to as a Y functional group) at the terminal, has a functional group (hereinafter referred to as a functional group reactive with the Y functional group). , Y ′ functional group) and a compound having a crosslinkable silyl group.

Examples of the silicon compound having the Y'functional group are γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ- (2-aminoethyl) aminopropylmethyldimethoxysilane and γ-aminopropyltriethoxysilane. Amino group-containing silanes such as;
Mercapto group-containing silanes such as mercaptopropyltrimethoxysilane, γ-mercaptopropylmethyldimethoxysilane, etc .; such as γ-glycidoxypropyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane Epoxy silanes; vinyl-type unsaturated group-containing silanes such as vinyltriethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, γ-acryloyloxypropylmethyldimethoxysilane; γ-chloropropyltrimethoxysilane, etc. Chlorine atom-containing silanes;
γ-isocyanatopropyltriethoxysilane, γ-
Isocyanatopropylmethyldimethoxysilane, γ-
Isocyanate-containing silanes such as isocyanatopropyltrimethoxysilane; hydrosilanes such as methyldimethoxysilane, trimethoxysilane, methyldiethoxysilane, triethoxysilane, etc. may be specifically exemplified, but are not limited thereto. It is not something that will be done.

When the crosslinkable silyl group is introduced, a polyether polymer having only one functional group in the molecule is used, and the crosslinkable silyl group is contained in an amount equivalent to or smaller than that of the functional group. By reacting the compound,
A method for obtaining a polyether polymer having an average of 1.2 or less crosslinkable silyl groups, and a polyether polymer having an average of one or more functional groups in the molecule are used. There is a method of obtaining a polyether polymer having 1.2 or less on average of crosslinkable silyl groups by reacting a compound having less crosslinkable silyl groups. <Use amount of polyether polymer (II) having 1.2 or less crosslinkable silyl groups on average> Polyether polymer (II) having 1.2 or less crosslinkable silyl groups on average ), The vinyl polymer (I) 10
The polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups is preferably 1 part by weight or more and 200 parts by weight or less, more preferably 3 parts by weight or more and 100 parts by weight or less, based on 0 parts by weight. It is preferably 5 parts by weight or more and 80 parts by weight or less. << About polyether polymer (III) having at least 1.2 or more crosslinkable functional groups >><Mainchain> In the curable composition of the present invention, at least 1.2 or more crosslinkable functional groups The polyether-based polymer (III) having the general formula-(-R- is the same as the main chain structure of the polyether-based polymer (II) having an average of 1.2 or less crosslinkable silyl groups. O-) n- (in the formula, R is a divalent alkylene group having 1 to 4 carbon atoms) is preferably a polyoxyalkylene. Specifically, it can be exemplified as described in the polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups.
Further, other monomer units may be contained, but it is preferable that the monomer unit represented by the above formula is present in the polymer in an amount of 50% by weight or more, and preferably 80% by weight or more.

The main chain may or may not contain a urethane bond or a urea bond.

The polyether polymer (III) of the present invention
The molecular structure of No. 1 differs depending on the intended use and the desired characteristics, and the method described in JP-A-63-112642 can be used. An oxyalkylene polymer having a high molecular weight and a small molecular weight distribution (Mw / Mn) from the viewpoint of achieving both low viscosity (workability) of a curable composition and low modulus and high elongation of a cured product obtained by curing the curable composition. Is preferred. Specifically, the number average molecular weight is preferably 5,000 or more and 50,000 or less, and more preferably 8,000 or more and 20,000 or less. Further, Mw / Mn is preferably 1.6 or less,
It is more preferably 1.5 or less. The method for producing such a polyoxyalkylene is the same as that described for the polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups. <Crosslinkable silyl group> Polyether polymer (III) having at least 1.2 crosslinkable functional groups of the present invention
In the above, since the bond between the crosslinkable silyl group and the polyether moiety has hydrolysis resistance, at least three carbon atoms are present between the silicon atom of the silyl group and the ether oxygen atom of the polyether moiety. Therefore, an alkylene group such as trimethylene and tetramethylene is preferable. Number and Position of Crosslinkable Silyl Group The number of crosslinkable silyl groups of the polyether polymer (III) in the present invention is preferably at least more than 1.2 from the viewpoint of curability of the composition. The number is more preferably 2 or more and 4.0 or less, and further preferably 1.5 to 2.5 or less. The crosslinkable silyl group of the polyether polymer (III) is preferably at the end of the molecular chain from the viewpoint of rubber elasticity of the cured product,
More preferably, the polymer has functional groups at both ends. Method for Introducing Crosslinkable Silyl Group The polyether polymer (III) having at least 1.2 or more crosslinkable functional groups of the present invention introduces a crosslinkable silyl group into a polyether polymer having functional groups. It is preferably obtained by

The introduction of the crosslinkable silyl group may be carried out by a known method. Specifically, the method described for the polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups can be mentioned. <Amount of use of polyether polymer (III) having at least 1.2 crosslinkable functional groups> At least 1.
The amount of the polyether polymer (III) having two or more crosslinkable functional groups used is such that the mixing ratio of the vinyl polymer (I) and the polyether polymer (III) is 1 by weight.
The range of 00/1 to 1/100 is preferable, and the range of 100/5 is
5/100 is more preferable, and 100 /
More preferably, it is in the range of 10 to 10/100.
If the amount of the vinyl polymer (I) is too small, the weather resistance and heat resistance may decrease. << Curable Composition >> The curable composition of the present invention may require a curing catalyst or a curing agent. Also,
Various compounding agents may be added depending on the desired physical properties. <Curing Catalyst / Curing Agent> A polymer having a crosslinkable silyl group is crosslinked and cured by forming a siloxane bond in the presence or absence of various conventionally known condensation catalysts. With regard to the properties of the cured product, it can be widely prepared from rubber-like to resin-like depending on the molecular weight of the polymer and the main chain skeleton.

Examples of such condensation catalysts include dibutyltin dilaurate, dibutyltin diacetate, dibutyltin diethyl hexanolate, dibutyltin dioctate, dibutyltin dimethylmalate, dibutyltin diethylmalate, dibutyltin dibutylmalate, Dibutyltin diisooctyl maleate, dibutyltin ditridecyl maleate, dibutyltin dibenzylmalate, dibutyltin maleate, dioctyltin diacetate, dioctyltin distearate, dioctyltin dilaurate, dioctyltin diethylmalate, dioctyltin diisooctyl Tetravalent tin compounds such as malate; Divalent tin compounds such as tin octylate, tin naphthenate and tin stearate; Monobutyl such as monobutyltin trisoctoate and monobutyltin triisopropoxide Monoalkyltins such as tin compounds and monooctyltin compounds; titanic acid esters such as tetrabutyl titanate and tetrapropyl titanate; organics such as aluminum trisacetylacetonate, aluminum trisethylacetoacetate and diisopropoxyaluminumethylacetoacetate Aluminum compounds; bismuth carboxylate, iron carboxylate, titanium carboxylate, lead carboxylate, vanadium carboxylate, zirconium carboxylate, calcium carboxylate, potassium carboxylate, barium carboxylate, manganese carboxylate, cerium carboxylate, carboxylic acid Carboxylic acids such as nickel, cobalt carboxylate, zinc carboxylate and aluminum carboxylate (2-ethylhexanoic acid, neodecanoic acid, versatic acid, oleic acid, sodium (Tenic acid, etc.) metal salts, or reaction products and mixtures of these with amine compounds such as laurylamine described below; chelate compounds such as zirconium tetraacetylacetonate and titanium tetraacetylacetonate; methylamine, ethylamine, propylamine , Isopropylamine, butylamine, amylamine, hexylamine, octylamine,
Aliphatic primary amines such as 2-ethylhexylamine, nonylamine, decylamine, laurylamine, pentadecylamine, cetylamine, stearylamine, cyclohexylamine; dimethylamine, diethylamine, dipropylamine, diisopropylamine, dibutylamine, diamylamine, dioctyl. Aliphatic secondary amines such as amine, di (2-ethylhexyl) amine, didecylamine, dilaurylamine, dicetylamine, distearylamine, methylstearylamine, ethylstearylamine, butylstearylamine; triamylamine, trihexylamine, Aliphatic tertiary amines such as trioctylamine; triallylamine, oleylamine,
Aliphatic unsaturated amines such as; aromatic amines such as laurylaniline, stearylaniline and triphenylamine; and other amines such as monoethanolamine, diethanolamine, triethanolamine,
Diethylenetriamine, triethylenetetramine, oleylamine, cyclohexylamine, benzylamine,
Diethylaminopropylamine, xylylenediamine,
Ethylenediamine, hexamethylenediamine, triethylenediamine, guanidine, diphenylguanidine,
2,4,6-Tris (dimethylaminomethyl) phenol, morpholine, N-methylmorpholine, 2-ethyl-
Amine-based compounds such as 4-methylimidazole and 1,8-diazabicyclo (5,4,0) undecene-7 (DBU), or salts of these amine-based compounds with carboxylic acids; laurylamine and tin octylate Reactants and mixtures of amine compounds and organotin compounds such as reactants or mixtures; low molecular weight polyamide resins obtained from excess polyamines and polybasic acids; reaction products of excess polyamines with epoxy compounds; γ -Aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, γ-aminopropyltriisopropoxysilane, γ-aminopropylmethyldimethoxysilane, γ-
Aminopropylmethyldiethoxysilane, N- (β-aminoethyl) aminopropyltrimethoxysilane, N-
(Β-aminoethyl) aminopropylmethyldimethoxysilane, N- (β-aminoethyl) aminopropyltriethoxysilane, N- (β-aminoethyl) aminopropylmethyldiethoxysilane, N- (β-aminoethyl) amino Propyltriisopropoxysilane, γ-ureidopropyltrimethoxysilane, N-phenyl-γ
-Aminopropyltrimethoxysilane, N-benzyl-
γ-aminopropyltrimethoxysilane, N-vinylbenzyl-γ-aminopropyltriethoxysilane and the like can be mentioned. In addition, silanol condensation of amino-modified silyl polymers, silylated amino polymers, unsaturated aminosilane complexes, silane coupling agents having amino groups such as phenylamino long-chain alkylsilanes, aminosilylated silicones; Examples of the catalyst include known silanol condensation catalysts such as other acidic catalysts and basic catalysts.

These catalysts may be used alone,
You may use 2 or more types together. The amount of the condensation catalyst blended is such that the vinyl polymer 1 having at least one crosslinkable silyl group is used.
About 0.1 to 20 parts is preferable with respect to 00 parts (parts by weight, the same applies hereinafter), and 1 to 10 parts is more preferable. If the compounding amount of the silanol condensation catalyst is less than this range, the curing rate may be slow and the curing reaction may not be able to proceed sufficiently. On the other hand, if the content of the silanol condensation catalyst exceeds this range, local heat generation or foaming occurs during curing, and it becomes difficult to obtain a good cured product, and the pot life becomes too short, and it is also preferable from the viewpoint of workability. Absent. In addition, although not particularly limited, it is preferable to use a tin-based curing catalyst in order to control the curability.

Further, in the curable composition of the present invention,
In order to further increase the activity of the condensation catalyst, it is possible to use the above-mentioned silane coupling agent having an amino group as a co-catalyst as in the case of the amine compound. This amino group-containing silane coupling agent is a compound having a group containing a silicon atom to which a hydrolyzable group is bonded (hereinafter referred to as a hydrolyzable silicon group) and an amino group, and the groups already exemplified as the hydrolyzable group. However, a methoxy group, an ethoxy group and the like are preferable from the viewpoint of hydrolysis rate. The number of hydrolyzable groups is preferably 2 or more, particularly preferably 3 or more.

The blending amount of these amine compounds is 0.10 parts by weight based on 100 parts by weight of the organic polymer of the vinyl polymer (I).
The amount is preferably about 01 to 50 parts by weight, more preferably 0.1 to 20 parts by weight. Amount of amine compound is 0.01
If it is less than parts by weight, the curing rate may be slow, and the curing reaction may not be able to proceed sufficiently. on the other hand,
If the compounding amount of the amine compound exceeds 30 parts by weight, the pot life may be too short, which is not preferable in terms of workability.

These amine compounds may be used alone or in combination of two or more.

Further, the following general formula (37) R ⁴⁹ _a Si (OR ⁵⁰ ) _4-a (37) (In the formula, R ⁴⁹ and R ⁵⁰ each independently have 1 carbon atom
To 20 substituted or unsubstituted hydrocarbon groups. Further, a is 0, 1, 2, or 3. ), A silicon compound having no amino group or silanol group may be added as a cocatalyst.

The above-mentioned silicon compound is not limited, but in general formula (37) such as phenyltrimethoxysilane, phenylmethyldimethoxysilane, phenyldimethylmethoxysilane, diphenyldimethoxysilane, diphenyldiethoxysilane and triphenylmethoxysilane. R ^{49 of} is an aryl group having 6 to 20 carbon atoms,
It is preferable because it has a large effect of accelerating the curing reaction of the composition. Particularly, diphenyldimethoxysilane and diphenyldiethoxysilane are most preferable because they are low in cost and easily available.

The content of the silicon compound is preferably about 0.01 to 20 parts, more preferably 0.1 to 10 parts, based on 100 parts of the vinyl polymer. If the blending amount of the silicon compound is less than this range, the effect of accelerating the curing reaction may be reduced. On the other hand, if the content of the silicon compound exceeds this range, the hardness and tensile strength of the cured product may decrease.

The type and amount of the curing catalyst / curing agent may be selected according to the type of Y and the number of a in the vinyl polymer represented by the general formula (1) or (6) of the present invention. It is possible to control the curability and mechanical properties of the present invention depending on the purpose and application. When Y is an alkoxy group, the smaller the number of carbon atoms, the higher the reactivity, and the larger the number a, the higher the reactivity. <Adhesiveness imparting agent> A silane coupling agent or an adhesiveness imparting agent other than the silane coupling agent can be added to the composition of the present invention. When the adhesion-imparting agent is added, the risk of the sealing material peeling off from the adherend such as a siding board can be further reduced because the joint width and the like change due to external force. In some cases, it is not necessary to use a primer used for improving the adhesiveness, and it is expected that the construction work will be simplified. Specific examples of the silane coupling agent include an amino group, a mercapto group, an epoxy group, a carboxyl group, a vinyl group, an isocyanate group, an isocyanurate, a silane coupling agent having a functional group such as halogen, and the like. as,
γ-isocyanatopropyltrimethoxysilane, γ-
Isocyanate group-containing silanes such as isocyanatopropyltriethoxysilane, γ-isocyanatopropylmethyldiethoxysilane and γ-isocyanatopropylmethyldimethoxysilane; γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane,
γ-aminopropyltriisopropoxysilane, γ-aminopropylmethyldimethoxysilane, γ-aminopropylmethyldiethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ- (2-aminoethyl) aminopropyl Methyldimethoxysilane,
γ- (2-aminoethyl) aminopropyltriethoxysilane, γ- (2-aminoethyl) aminopropylmethyldiethoxysilane, γ- (2-aminoethyl) aminopropyltriisopropoxysilane, γ-ureidopropyltrimethoxy Silane, N-phenyl-γ-aminopropyltrimethoxysilane, N-benzyl-γ-aminopropyltrimethoxysilane, N-vinylbenzyl-γ
-Amino group-containing silanes such as aminopropyltriethoxysilane; γ-mercaptopropyltrimethoxysilane, γ-mercaptopropyltriethoxysilane, γ-
Mercapto group-containing silanes such as mercaptopropylmethyldimethoxysilane and γ-mercaptopropylmethyldiethoxysilane; γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropylmethyldimethoxy Epoxy group-containing silanes such as silane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltriethoxysilane; β-carboxyethyltriethoxysilane, β
-Carboxysilanes such as carboxyethylphenylbis (2-methoxyethoxy) silane and N-β- (carboxymethyl) aminoethyl-γ-aminopropyltrimethoxysilane; vinyltrimethoxysilane, vinyltriethoxysilane, γ-methacryloyl Vinyl-type unsaturated group-containing silanes such as oxypropylmethyldimethoxysilane and γ-acryloyloxypropylmethyltriethoxysilane; halogen-containing silanes such as γ-chloropropyltrimethoxysilane; tris (trimethoxysilyl) isocyanurate, etc. Examples of isocyanurate silanes include Further, modified derivatives of these, such as amino-modified silyl polymers, silylated amino polymers, unsaturated aminosilane complexes, phenylamino long-chain alkylsilanes, aminosilylated silicones, blocked isocyanate silanes, and silylated polyesters are also used as silane coupling agents. Can be used.

The silane coupling agent used in the present invention is
Usually, it is used in the range of 0.1 to 20 parts with respect to 100 parts of the crosslinkable silyl group-containing vinyl polymer. Especially 0.5
It is preferably used in the range of 10 parts. The effect of the silane coupling agent added to the curable composition of the present invention,
When used on various adherends, that is, inorganic substrates such as glass, aluminum, stainless steel, zinc, copper, and mortar, and organic substrates such as vinyl chloride, acrylic, polyester, polyethylene, polypropylene, and polycarbonate, non-primer conditions or It shows a remarkable effect of improving the adhesiveness under the primer treatment condition. When used under non-primer conditions, the effect of improving the adhesion to various adherends is particularly remarkable.

Specific examples other than the silane coupling agent include, but are not limited to, epoxy resins, phenol resins, sulfur, alkyl titanates, aromatic polyisocyanates, and the like.

The above adhesion-imparting agents may be used alone or in combination of two or more. Addition of these adhesiveness-imparting agents can improve the adhesiveness to the adherend. Although not particularly limited, 0.1 to 20 parts by weight of a silane coupling agent is used among the above-mentioned adhesiveness-imparting agents in order to improve the adhesiveness, particularly the adhesiveness to a metal adhered surface such as an oil pan. Is preferred.

The kind and amount of the adhesion-imparting agent can be selected according to the kind of Y and the number of a in the vinyl polymer represented by the general formula (1) or (6) of the present invention. The curability and mechanical properties of the present invention can be controlled according to the purpose and use. In particular, it has an influence on the curability and elongation, so it is necessary to pay attention to the selection. <Plasticizer> In the curable composition of the present invention, various plasticizers may be used as necessary. When a plasticizer is used in combination with the below-mentioned filler, it is more advantageous because the elongation of the cured product can be increased and a large amount of filler can be mixed, but it is not always necessary to add. The plasticizer is not particularly limited, but for the purpose of adjusting physical properties, adjusting properties, and the like, for example, dibutyl phthalate, diheptyl phthalate, di (2-ethylhexyl) phthalate,
Phthalates such as butylbenzyl phthalate; Non-aromatic dibasic esters such as dioctyl adipate, dioctyl sebacate, dibutyl sebacate, isodecyl succinate; Aliphatic esters such as butyl oleate and methyl acetylricinoleate Ester of polyalkylene glycol such as diethylene glycol dibenzoate, triethylene glycol dibenzoate, pentaerythritol ester; tricresyl phosphate;
Phosphoric acid esters such as tributyl phosphate; trimellitic acid esters; polystyrenes such as polystyrene and poly-α-methylstyrene; polybutadiene, polybutene, polyisobutylene, butadiene-acrylonitrile, polychloroprene; chlorinated paraffins; alkyldiphenyl, Hydrocarbon-based oils such as partially hydrogenated terphenyl; process oils; polyether polyols such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol and derivatives obtained by converting the hydroxyl groups of these polyether polyols into ester groups, ether groups, etc. Polyethers such as epoxidized soybean oil, epoxy plasticizers such as benzyl epoxystearate; dibasic acids such as sebacic acid, adipic acid, azelaic acid and phthalic acid, and ethylene glycol Polyester plasticizers obtained from dihydric alcohols such as alcohol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol; obtained by polymerizing vinyl monomers including acrylic plasticizers by various methods. Examples thereof include vinyl polymers.

Above all, the number average molecular weight is from 500 to 15,000.
By adding the polymer plasticizer, which is a polymer of
The viscosity and slump property of the curable composition and the mechanical properties such as tensile strength and elongation of the cured product obtained by curing the composition can be adjusted, and the plasticizer is a plasticizer containing no polymer component in the molecule. Compared to the case where a molecular plasticizer is used, the initial physical properties are maintained for a long period of time, and the dryability when the alkyd paint is applied to the cured product (also called paintability)
Can be improved. Although not limited, this polymer plasticizer may or may not have a functional group.

In the above, the number average molecular weight of the polymer plasticizer is 5
Although described as 00 to 15000, preferably 800 to 1
It is 0000, and more preferably 1000 to 8000. If the molecular weight is too low, the plasticizer flows out over time due to heat and rainfall, the initial physical properties cannot be maintained for a long time, and the alkyd coatability cannot be improved. Further, if the molecular weight is too high, the viscosity becomes high and the workability becomes poor.

Of these polymeric plasticizers, those compatible with the vinyl polymer are preferred. Among them, vinyl polymers are preferable from the viewpoint of compatibility, weather resistance and heat resistance. Among vinyl polymers, (meth) acrylic polymers are preferable, and acrylic polymers are more preferable. Examples of the method for synthesizing this acrylic polymer include those obtained by conventional solution polymerization and solventless acrylic polymers. The latter acrylic plasticizer does not use a solvent or a chain transfer agent, and is a high-temperature continuous polymerization method (USP4414370, JP-A-59-6207, JP-B-5-58005, JP-A- 1-3).
13522, USP 5010166), which is more preferable for the purpose of the present invention. Examples thereof include, but are not particularly limited to, Toagosei UP series (see October 1999 issue of industrial material). Of course, a living radical polymerization method can also be mentioned as another synthetic method. According to this method, the molecular weight distribution of the polymer is narrow and the viscosity can be lowered, which is preferable. Further, the atom transfer radical polymerization method is more preferable, but the method is not limited thereto.

The molecular weight distribution of the polymeric plasticizer is not particularly limited, but is preferably narrow and is preferably less than 1.8.
1.7 or less is more preferable, 1.6 or less is still more preferable, 1.5 or less is further preferable, 1.4 or less is particularly preferable, and 1.3 or less is most preferable.

The plasticizer containing the above-mentioned polymer plasticizer may be used alone or in combination of two or more kinds, but it is not always necessary. If necessary, a high molecular weight plasticizer may be used, and a low molecular weight plasticizer may be further used in combination as long as the physical properties are not adversely affected.

These plasticizers can be added at the time of polymer production.

The amount of the plasticizer used is not limited, but may be 5 to 15 parts by weight with respect to 100 parts by weight of the vinyl polymer.
The amount is 0 parts by weight, preferably 10 to 120 parts by weight, more preferably 20 to 100 parts by weight. If it is less than 5 parts by weight, the effect as a plasticizer will not be exhibited, and if it exceeds 150 parts by weight, the mechanical strength of the cured product will be insufficient. <Filler> In the curable composition of the present invention, various fillers may be used as necessary. The filler is not particularly limited, wood powder, pulp, cotton chips, asbestos, glass fiber, carbon fiber, mica, walnut shell powder, chaff powder,
Reinforcing fillers such as graphite, diatomaceous earth, clay, silica (fumed silica, precipitable silica, crystalline silica, fused silica, dolomite, silicic anhydride, silicic acid hydrate, etc.), carbon black; heavy calcium carbonate , Colloidal calcium carbonate, magnesium carbonate, diatomaceous earth, calcined clay, clay, talc, titanium oxide, bentonite,
Fillers such as organic bentonite, ferric oxide, red iron oxide, fine aluminum powder, flint powder, zinc oxide, activated zinc white, zinc dust, zinc carbonate and shirasu balloon; asbestos, glass fiber and glass filament, carbon fiber, Examples thereof include fibrous fillers such as Kevlar fiber and polyethylene fiber.

Among these fillers, precipitated silica, fumed silica, crystalline silica, fused silica, dolomite, carbon black, calcium carbonate, titanium oxide,
Talc and the like are preferred.

In particular, in order to obtain a cured product having high strength with these fillers, mainly fumed silica, precipitable silica, silicic acid anhydride, silicic acid hydrate, carbon black, surface-treated fine calcium carbonate, crystalline Silica, fused silica,
Fillers selected from calcined clay, clay and activated zinc white can be added. Above all, the specific surface area (according to the BET adsorption method) is 50 m ² / g or more, usually 50 to 400 m ² /
g, preferably 100 to 300 m ² / g of ultrafine powdery silica is preferable. Further, silica whose surface is previously subjected to a hydrophobic treatment with an organosilicon compound such as organosilane, organosilazane, or diorganocyclopolysiloxane is more preferable.

More specific examples of the silica-based filler having a high reinforcing property are not particularly limited, but Aerosil of Nippon Aerosil Co., Ltd. which is one of fumed silica, and Nippon Silica which is one of precipitated silica. Nipsil manufactured by the company can be used.

When it is desired to obtain a cured product having a low strength and a large elongation, a filler mainly selected from titanium oxide, calcium carbonate, talc, ferric oxide, zinc oxide, shirasu balloon and the like is added. it can. Generally, when the specific surface area of calcium carbonate is small, the effect of improving the breaking strength, breaking elongation, adhesiveness and weather resistance of the cured product may not be sufficient. The larger the value of the specific surface area, the greater the effect of improving the breaking strength, breaking elongation, adhesiveness and weather resistance of the cured product.

Furthermore, it is more preferable that the calcium carbonate has been surface-treated with a surface-treating agent. When the surface-treated calcium carbonate is used, the workability of the composition of the present invention is improved and the adhesiveness and weather resistance of the curable composition are improved as compared with the case of using the calcium carbonate that is not surface-treated. It is considered that the improvement effect is further improved. As the surface treatment agent, organic substances such as fatty acids, fatty acid soaps and fatty acid esters, various surfactants, and various coupling agents such as silane coupling agents and titanate coupling agents are used. Specific examples include, but are not limited to, caproic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid and other fatty acids. And salts of these fatty acids such as sodium and potassium, and alkyl esters of these fatty acids. Specific examples of the surfactant include polyoxyethylene alkyl ether sulfuric acid ester, long-chain alcohol sulfuric acid ester and the like, sulfuric acid ester type anionic surfactants such as sodium salt and potassium salt thereof, alkylbenzene sulfonic acid and alkylnaphthalene. Examples thereof include sulfonic acid, paraffin sulfonic acid, α-olefin sulfonic acid, alkyl sulfosuccinic acid and the like, and sulfonic acid type anionic surfactants such as sodium salt and potassium salt thereof. The surface treatment agent is preferably treated in an amount of 0.1 to 20% by weight, more preferably 1 to 5% by weight, based on calcium carbonate. If the treatment amount is less than 0.1% by weight, the workability, adhesiveness and weather resistance may not be sufficiently improved. If it exceeds 20% by weight, the storage stability of the curable composition may be poor. It may decrease.

Although there is no particular limitation, when calcium carbonate is used, when the effects of improving the thixotropy of the compound, the breaking strength, the breaking elongation of the cured product, the adhesiveness and the weather-resistant adhesiveness, etc. are particularly expected, the colloidal calcium carbonate is used. Is preferably used.

On the other hand, heavy calcium carbonate may be added for the purpose of lowering the viscosity of the compound, increasing the amount, and reducing the cost. Can be used.

Heavy calcium carbonate is mechanically crushed and processed from natural chalk (chalk), marble, limestone and the like. There are a dry method and a wet method as a pulverizing method, but a wet pulverized product is often not preferable because it often deteriorates the storage stability of the curable composition of the present invention. Heavy calcium carbonate becomes a product having various average particle sizes by classification. Although not particularly limited, in the case of expecting the effects of improving the breaking strength, breaking elongation, adhesiveness and weather resistance of the cured product, those having a specific surface area of 1.5 m ² / g or more and 50 m ² / g or less are preferred. Preferably 2 m ² / g or more 5
0 m ² / g or less is more preferable, and 2.4 m ² / g or more 50
m ² / g or less is more preferable, 3 m ² / g or more and 50 m ² /
Particularly preferred is g or less. If the specific surface area is less than 1.5 m ² / g, the improvement effect may not be sufficient. Of course, this is not the case when simply lowering the viscosity or only for the purpose of increasing the amount.

The value of the specific surface area is a value measured by an air permeation method (a method of determining the specific surface area from the permeability of air to the powder-packed bed) according to JIS K 5101. As a measuring instrument, it is preferable to use a specific surface area measuring instrument SS-100 type manufactured by Shimadzu Corporation.

These fillers may be used alone or in combination of two or more, depending on the purpose and need. Although not particularly limited, for example, if a combination of heavy calcium carbonate having a specific surface area value of 1.5 m ² / g or more and colloidal calcium carbonate is combined as necessary, an increase in the viscosity of the composition is suppressed moderately and a cured product is obtained. The breaking strength, breaking elongation, improvement of adhesiveness and weather resistance can be expected.

When a filler is used, the amount of the filler added is preferably 5 to 1000 parts by weight, and more preferably 20 to 500 parts by weight, based on 100 parts by weight of the vinyl polymer. More preferably, it is particularly preferably used in the range of 40 to 300 parts by weight. If the blending amount is less than 5 parts by weight, the effects of improving the breaking strength, breaking elongation, adhesiveness and weather resistance of the cured product may not be sufficient,
If it exceeds 1000 parts by weight, the workability of the curable composition may deteriorate. The filler may be used alone,
You may use together 2 or more types. <Fine Hollow Particles> Further, fine hollow particles may be used in combination with these reinforcing fillers for the purpose of achieving weight reduction and cost reduction without causing significant deterioration in physical properties.

Such micro hollow particles (hereinafter referred to as “balloons”) are not particularly limited, but as described in “Latest Technology for Functional Fillers” (CMC), the diameter is 1 mm or less, preferably 500 μm or less. More preferably, a hollow body made of an inorganic or organic material of 200 μm or less is used. In particular, the true specific gravity is 1.0 g /
It is preferable to use a minute hollow body having a size of ³ cm ³ or less,
Furthermore, it is preferable to use a minute hollow body having a weight of 0.5 g / cm ³ or less.

Examples of the inorganic balloons include silicic acid balloons and non-silicic acid balloons. Examples of the silicic acid balloons include shirasu balloon, perlite, glass balloon, silica balloon, fly ash balloon, and non-silicic acid balloons. Examples thereof include alumina balloons, zirconia balloons, carbon balloons and the like. Specific examples of these inorganic balloons include Shirasu balloons made by Idiji Kasei's Winlite, Sanki Kogyo's Sankilite, glass balloons made by Nippon Sheet Glass Caroon, Sumitomo 3M's Cellstar Z-28, EMERSON & CU.
MING made MICRO BALLON, PITTS
CERAMIC GL made by BURGE CORNING
ASSMODULES, 3M made GLASS BUBB
LES, Q-CEL made by Asahi Glass as silica balloon,
Taiheiyo Cement's E-SPHERES, PFAMARKETING's CE as fly ash balloon
ROSPHERES, FILLITE U. S. FILLITE made of A, BW made by Showa Denko as an alumina balloon, and HO made by ZIRCOA as a zirconia balloon.
LLOW ZIRCONIUM SPHEES, Kureha Chemical's Crecus Fair as carbon balloon, GENE
Car boss fairs made by RAL TECHNOLOGIES are commercially available.

Examples of the organic balloons include thermosetting resin balloons and thermoplastic resin balloons. Phenol balloons, epoxy balloons and urea balloons are used as the thermosetting balloons, and Saran balloons are used as the thermoplastic balloons. Examples thereof include polystyrene balloons, polymethacrylate balloons, polyvinyl alcohol balloons, and styrene-acrylic balloons. Further, balloons of crosslinked thermoplastic resin can also be used. The balloon as used herein may be a balloon after foaming, or may be a balloon obtained by blending a material containing a foaming agent and then foaming.

As specific examples of these organic balloons,
UC made of Union Carbide as a phenolic balloon
AR and PHENOLIC MICROBALLON
S, EMERSON & CUMI as epoxy balloon
ECCOSPHERES made by NG, ECCOSPHER made by EMERSON & CUMING as a urea balloon
ES VF-O, DOW CHE as Saran balloon
MICAL made SARAN MICROSPHERE
S, Nippon Filament Expancel, Matsumoto Yushi-Seiyaku Matsumoto Microspheres, and polystyrene balloons ARCOPOLYMERS DYLITE
EXPANDABLE POLYSTYRENE, BA
EXPANDABLE made by SF WYANDOTE
POLYSTYRENE BEADS, cross-linked styrene-acrylic acid balloon has SX863 made by Japan Synthetic Rubber
(P) is commercially available.

The above balloons may be used alone or 2
You may use it in mixture of 2 or more types. Furthermore, in order to improve the dispersibility and workability of the compound on the surface of these balloons with fatty acid, fatty acid ester, rosin, rosin acid lignin, silane coupling agent, titanium coupling agent, aluminum coupling agent, polypropylene glycol, etc. Treated products can also be used. These balloons are used for reducing the weight and reducing the cost without deteriorating the flexibility, the elongation and the strength among the physical properties when the compound is cured.

The content of the balloon is not particularly limited, but is preferably 0.1% with respect to 100 parts by weight of the vinyl polymer.
It can be used in the range of 1 to 50 parts, more preferably 0.1 to 30 parts. When this amount is less than 0.1 part, the effect of weight reduction is small, and when it is 50 parts or more, a decrease in tensile strength may be observed among the mechanical properties when the composition is cured.
When the specific gravity of the balloon is 0.1 or more, 3 to 50 parts,
More preferably, it is 5 to 30 parts. <Physical Property Adjusting Agent> In the curable composition of the present invention, a physical property adjusting agent for adjusting the tensile properties of a cured product to be produced may be added, if necessary.

The physical property adjusting agent is not particularly limited,
For example, alkylalkoxysilanes such as methyltrimethoxysilane, dimethyldimethoxysilane, trimethylmethoxysilane, and n-propyltrimethoxysilane; dimethyldiisopropenoxysilane, methyltriisopropenoxysilane, γ-glycidoxypropylmethyldi Alkylisopropenoxysilane such as isopropenoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-glycidoxypropyltrimethoxysilane, vinyltrimethoxysilane, vinyldimethylmethoxysilane, γ-aminopropyltrimethoxysilane, N- (β
-Aminoethyl) aminopropylmethyldimethoxysilane, γ-mercaptopropyltrimethoxysilane, γ-
Examples thereof include alkoxysilanes having a functional group such as mercaptopropylmethyldimethoxysilane; silicone varnishes; polysiloxanes and the like. By using the physical property modifier, the hardness of the composition of the present invention when cured can be increased, or the hardness can be decreased and the elongation can be increased. The physical property modifiers may be used alone or in combination of two or more kinds. <Silanol-containing compound> The curable composition of the present invention includes
A silanol-containing compound may be added as necessary such as changing the physical properties of the cured product. What is a silanol-containing compound?
A compound having one silanol group in the molecule and / or a compound capable of forming a compound having one silanol group in the molecule by reacting with water.
Only one of these may be used, or both compounds may be used at the same time.

The compound having one silanol group in the molecule, which is one of the silanol-containing compounds, is not particularly limited, and the compounds shown below (CH ₃ ) ₃ SiOH, (CH ₃ CH ₂ ) ₃ SiOH are used. , (C
_{H 3 CH 2 CH 2) 3} SiOH, (n-Bu) 3 SiOH,
(Sec-Bu) ₃ SiOH, (t-Bu) ₃ SiOH,
(T-Bu) Si (CH 3) 2 OH, (C 5 H 11) 3 SiO
_{H, (C 6 H 13)} 3 SiOH, (C 6 H 5) 3 SiOH,
_{(C 6 H 5) 2 Si} (CH 3) OH, (C 6 H 5) Si (CH
₃ ) ₂ OH, (C ₆ H ₅ ) ₂ Si (C ₂ H ₅ ) OH, C ₆ H ₅ S
i (C ₂ H ₅ ) ₂ OH, C ₆ H ₅ CH ₂ Si (C ₂ H ₅ ) ₂ O
H, C ₁₀ H ₇ Si (CH ₃ ) ₂ OH (wherein C ₆ H ₅ represents a phenyl group and C ₁₀ H ₇ represents a naphthyl group in the above formula) and the like (R ″) ₃ SiOH ( However, in the formula, R "is a compound which can be represented by the same or different substituted or unsubstituted alkyl group or aryl group,

[0160]

[Chemical 7] Cyclic polysiloxane compounds containing silanol groups, such as

[0161]

[Chemical 8] A chain polysiloxane compound containing silanol groups such as

[0162]

[Chemical 9] A compound in which a silanol group is bonded to the polymer terminal composed of silicon and carbon as the main chain, such as

[0163]

[Chemical 10] A compound in which a silanol group is bonded to the end of the main chain of polysilane, such as

[0164]

[Chemical 11] Examples thereof include compounds having a silanol group bonded to the polymer terminal whose main chain is composed of silicon, carbon, and oxygen. Among these, the compound represented by the following general formula (45) is preferable. (R ⁵⁸ ) ₃ SiOH (45) (In the formula, R ⁵⁸ represents a monovalent hydrocarbon group having 1 to 20 carbon atoms. A plurality of R ⁵⁸ may be the same or different.) R ²⁷ is preferably a methyl group, an ethyl group, a vinyl group, a t-butyl group or a phenyl group, more preferably a methyl group.

Among them, (CH ₃ ) ₃ SiOH and the like having a small molecular weight are preferable from the viewpoint of easy availability and effect.

The above-mentioned compound having one silanol group in the molecule reacts with the crosslinkable silyl group of the vinyl polymer or the siloxane bond formed by the crosslinkage to reduce the number of crosslink points, and to obtain a cured product. It is presumed to give flexibility to. It is also one of the components of the present invention,
The compound capable of forming a compound having one silanol group in the molecule by reacting with water is not particularly limited, but a compound having one silanol group in the molecule formed by reacting with water (hydrolysis The product) is preferably a compound represented by the above general formula (45). For example, a general formula (4
In addition to the compound represented by 6), the following compounds can be mentioned.

N, O-bis (trimethylsilyl) acetamide, N- (trimethylsilyl) acetamide, bis (trimethylsilyl) trifluoroacetamide, N-
Methyl-N-trimethylsilyltrifluoroacetamide, bistrimethylsilylurea, N- (t-butyldimethylsilyl) N-methyltrifluoroacetamide,
(N, N-dimethylamino) trimethylsilane, (N,
N-diethylamino) trimethylsilane, hexamethyldisilazane, 1,1,3,3-tetramethyldisilazane, N- (trimethylsilyl) imidazole, trimethylsilyltrifluoromethanesulfonate, trimethylsilylphenoxide, trimethylsilyl compound of n-octanol, 2 - ethyl trimethylsilylated hexanol, glycerol tris (trimethylsilyl) ated, tris (trimethylsilyl) ated trimethylolpropane, tris (trimethylsilyl) ated pentaerythritol, pentaerythritol tetra (trimethylsilyl) ated product, (CH _{3) 3} 3SiNHSi ( C
_{H 3) 3, (CH 3} ) 3 SiNSi (CH 3) 2,

[0168]

[Chemical 12] And the like can be preferably used, but (CH ₃ ) ₃ SiNHSi (CH ₃ ) ₃ is particularly preferable in view of the amount of silanol groups contained in the hydrolysis product.

Further, the compound which can form a compound having one silanol group in the molecule by reacting with water, which is one of the components of the present invention, is not particularly limited. The compound represented by the formula (46) is preferable. ((R ⁵⁸ ) ₃ SiO) _n R ⁵⁹ (46) (In the formula, R ⁵⁸ is the same as described above. N is a positive number, and R ⁵⁹ is a part or all of active hydrogen containing compounds. R ⁵⁸ is preferably a methyl group, an ethyl group, a vinyl group, a t-butyl group or a phenyl group, and more preferably a methyl group. The (R ⁵⁸ ) ₃ Si group is particularly preferably a trimethylsilyl group in which all three R ⁵⁸ are methyl groups. Also, n is 1
-5 are preferable.

The active hydrogen-containing compound from which R ⁵⁹ is derived is not particularly limited, but for example, methanol, ethanol, n-butanol, i-butanol, t-butanol, n-octanol, 2-ethylhexanol,
Alcohols such as benzyl alcohol, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, propanediol, tetramethylene glycol, polytetramethylene glycol, glycerin, trimethylolpropane, pentaerythritol; phenol, cresol, Bisphenol A,
Phenols such as hydroquinone; formic acid, acetic acid, propionic acid, lauric acid, palmitic acid, stearic acid, behenic acid, acrylic acid, methacrylic acid, oleic acid, linoleic acid, linolenic acid, sorbic acid, oxalic acid, malonic acid,
Carboxylic acids such as succinic acid, adipic acid, maleic acid, benzoic acid, phthalic acid, terephthalic acid and trimellitic acid;
Ammonia; amines such as methylamine, dimethylamine, ethylamine, diethylamine, n-butylamine and imidazole; acid amides such as acetamide and benzamide; ureas such as urea and N, N′-diphenylurea;
Examples include ketones such as acetone, acetylacetone, and 2,4-heptadione.

The compound capable of forming a compound having one silanol group in the molecule by reacting with the water represented by the general formula (46) is, for example, the above-mentioned active hydrogen-containing compound or the like, such as trimethylsilyl chloride or Dimethyl (t
-Butyl) chloride and the like, which can be obtained by reacting a compound having a group capable of reacting with active hydrogen such as a halogen group together with a (R ⁵⁸ ) ₃ Si group also called a silylating agent, but is not limited thereto. However, R ⁵⁸ is the same as described above.

Specific examples of the compound represented by the above general formula (46) include allyloxytrimethylsilane, N,
O-bis (trimethylsilyl) acetamide, N- (trimethylsilyl) acetamide, bis (trimethylsilyl) trifluoroacetamide, N-methyl-N-trimethylsilyltrifluoroacetamide, bistrimethylsilylurea, N- (t-butyldimethylsilyl) N-
Methyltrifluoroacetamide, (N, N-dimethylamino) trimethylsilane, (N, N-diethylamino) trimethylsilane, hexamethyldisilazane, 1,
1,3,3-Tetramethyldisilazane, N- (trimethylsilyl) imidazole, trimethylsilyltrifluoromethanesulfonate, trimethylsilylphenoxide, n-octanol trimethylsilyl compound, 2-ethylhexanol trimethylsilyl compound, glycerin tris (trimethylsilyl) compound Examples thereof include, but are not limited to, trimethylolpropane tris (trimethylsilyl) compound, pentaerythritol tris (trimethylsilyl) compound, pentaerythritol tetra (trimethylsilyl) compound, and the like. These may be used alone or in combination of two or more.

[0173] In general formula _{^{(((R 60) 3 SiO}} ) (R
⁶¹ O) _s ) _t A compound such as can be represented by Z, CH
₃ O (CH ₂ CH (CH ₃ ) O) ₅ Si (CH ₃ ) ₃ , CH ₂
= CHCH ₂ (CH ₂ CH (CH ₃ ) O) ₅ Si (C
_{H 3) 3, (CH 3} ) 3 SiO (CH 2 CH (CH 3) O) 5
Si (CH ₃ ) ₃ , (CH ₃ ) ₃ SiO (CH ₂ CH (C
H ₃ ) O) ₇ Si (CH ₃ ) ₃ (In the formula, R ⁶⁰ is the same or different, substituted or unsubstituted monovalent hydrocarbon group or hydrogen atom, and R ⁶¹ is C 1-8.
A divalent hydrocarbon group, s and t are positive integers, and s is 1 to
6, s × t is 5 or more, and Z is an organic group having a valence of 1 to 6). These may be used alone,
You may use 2 or more types together.

Among the compounds capable of forming a compound having one silanol group in the molecule by reacting with water, storage stability, weather resistance and the like are not adversely affected.
The active hydrogen-containing compound formed after hydrolysis is preferably phenols, acid amides and alcohols, and more preferably phenols and alcohols in which the active hydrogen-containing compound is a hydroxyl group.

Among the above compounds, N, O-bis (trimethylsilyl) acetamide, N- (trimethylsilyl) acetamide, trimethylsilylphenoxide, n
-Octanol trimethylsilyl compound, 2-ethylhexanol trimethylsilyl compound, glycerin tris (trimethylsilyl) compound, trimethylolpropane tris (trimethylsilyl) compound, pentaerythritol tris (trimethylsilyl) compound, pentaerythritol tetra (trimethylsilyl) compound, etc. Is preferred.

By reacting with this water, 1
A compound capable of forming a compound having one silanol group reacts with moisture during storage, curing, or after curing to generate a compound having one silanol group in the molecule. The compound having one silanol group in the molecule thus produced reacts with the crosslinkable silyl group of the vinyl polymer or the siloxane bond produced by the crosslinking as described above to reduce the number of crosslinking points. It is presumed that the amount is decreased and the cured product is given flexibility.

The addition amount of the silanol-containing compound can be appropriately adjusted according to the expected physical properties of the cured product. The silanol-containing compound was added in an amount of 0.
1 to 50 parts by weight, preferably 0.3 to 20 parts by weight, more preferably 0.5 to 10 parts by weight can be added. If it is less than 0.1 parts by weight, the effect of addition will not be exhibited, and if it exceeds 50 parts by weight, crosslinking will be insufficient and the strength and gel fraction of the cured product will be too low.

Further, the timing of adding the silanol-containing compound to the vinyl polymer is not particularly limited, and it may be added during the production of the vinyl polymer or during the production of the curable composition. <Thixotropy imparting agent (anti-sagging agent)> To the curable composition of the present invention, a thixotropy-imparting agent (anti-sagging agent) is added in order to prevent sagging and improve workability, if necessary. Is also good.

The anti-sagging agent is not particularly limited, but examples thereof include polyamide waxes, hydrogenated castor oil derivatives, and metal soaps such as calcium stearate, aluminum stearate, and barium stearate. These thixotropic agents (anti-sagging agents) may be used alone or in combination of two or more. <Photocurable substance> If necessary, a photocurable substance may be added to the curable composition of the present invention. The photocurable substance is a substance in which the molecular structure undergoes a chemical change in a short time due to the action of light to cause a change in physical properties such as curing. By adding this photocurable substance, the tackiness (also referred to as residual tack) on the surface of the cured product when the curable composition is cured can be reduced. This photo-curable substance is a substance that can be cured by exposing it to light, but a typical photo-curable substance is, for example, that the photo-curable substance should be left at room temperature for one day at a position where it is exposed to sunlight (near the window). It is a substance that can be cured by. Many compounds such as organic monomers, oligomers, resins or compositions containing them are known as compounds of this type, and the type thereof is not particularly limited, and examples thereof include unsaturated acrylic compounds and polycinnamic acid. Examples thereof include vinyls and azide resins.

The unsaturated acrylic compound is a monomer or oligomer having an unsaturated group represented by the following general formula (47) or a mixture thereof. ^{_{CH 2 = CHR 62 CO (O}} ) - (47) wherein, R ⁶² represents hydrogen, an alkyl group having 1 to 10 carbon atoms, an aryl group or an aralkyl group having 7 to 10 carbon atoms having 6 to 10 carbon atoms.

Specific examples of the unsaturated acrylic compound include (meth) acrylic acid esters of low molecular weight alcohols such as ethylene glycol, glycerin, trimethylolpropane, pentaerythritol and neopentyl alcohol; bisphenol A and isocyanuric acid. (Meth) acrylic acid esters of alcohols obtained by modifying the above low molecular weight alcohols such as acids with ethylene oxide or propylene oxide; polyether polyols whose main chain has a hydroxyl group at the end, and polyethers whose main chain is a polyether A polymer polyol obtained by radically polymerizing a vinyl-based monomer in a certain polyol,
(Meth) acrylic acid esters such as a polyester polyol having a polyester main chain and a hydroxyl group at the terminal, a polyol having a hydroxyl group in the main chain and having a hydroxyl group in the main chain; bisphenol A
-Type or novolac-type epoxy resins and epoxy acrylate oligomers obtained by reacting (meth) acrylic acid; in the molecular chain obtained by reacting polyols, polyisocyanates, hydroxyl group-containing (meth) acrylates, etc. Examples thereof include urethane acrylate-based oligomers having a urethane bond and a (meth) acrylic group.

Polyvinyl cinnamate is a photosensitive resin having a cinnamoyl group as a photosensitive group, and includes not only those obtained by esterifying polyvinyl alcohol with cinnamic acid but also many polyvinyl cinnamate derivatives.

The azide resin is known as a photosensitive resin having an azide group as a photosensitive group, and is usually a "photosensitive resin" in addition to a rubber photosensitive liquid to which an azide compound is added as a photosensitive agent.
(Published March 17, 1972, Published by The Printing Society Press, 9
There are detailed examples on pages 3 to 106 to pages 117 to), and these can be used alone or in combination, and a sensitizer can be added if necessary.

Among the above photocurable substances, unsaturated acrylic compounds are preferable because they are easy to handle.

The photocurable substance is preferably added in an amount of 0.01 to 20 parts by weight based on 100 parts by weight of the vinyl polymer. If it is less than 0.01 parts by weight, the effect is small, and if it exceeds 20 parts by weight, the physical properties may be adversely affected. The effect may be enhanced by adding a sensitizer such as a ketone or a nitro compound or an accelerator such as an amine. <Air Oxidation Curable Substance> An air oxidation curable substance may be added to the curable composition of the present invention, if necessary. The air oxidation curable substance is a compound having an unsaturated group that can be crosslinked and cured by oxygen in the air. By adding this air oxidation curable substance, the tackiness (also referred to as residual tack) on the surface of the cured product when the curable composition is cured can be reduced. The air-oxidation curable substance in the present invention is a substance that can be cured by contact with air, and more specifically, has a property of reacting with oxygen in the air to be cured. A typical air oxidative curable substance can be cured, for example, by allowing it to stand in a room for one day in the air.

Examples of air-oxidation-curable substances include dry oils such as tung oil and linseed oil; various alkyd resins obtained by modifying these dry oils; acrylic polymers modified with dry oils, epoxy resins, Silicone resin; 1,
2-polybutadiene, 1,4-polybutadiene, C5
Specific examples thereof include polymers and copolymers of C8 to C8 diene, and various modified products (maleated modified products, boil oil modified products, etc.) of the polymers and copolymers. Of these, tung oil, liquids of diene polymers (liquid diene polymers) and modified products thereof are particularly preferable.

Specific examples of the liquid diene polymer include butadiene, chloroprene, isoprene and 1,3-
A liquid polymer obtained by polymerizing or copolymerizing a diene-based compound such as pentadiene, or a copolymer such as acrylonitrile or styrene having copolymerizability with these diene-based compounds so that the diene-based compound is the main component. Examples include polymers obtained by polymerization such as NBR and SBR, and various modified products thereof (maleated modified products, boil oil modified products, etc.). These may be used alone or in combination of two or more. Among these liquid diene compounds, liquid polybutadiene is preferable.

The air oxidative curable substance may be used alone or in combination of two or more kinds. Further, the effect may be enhanced by using a catalyst that accelerates the oxidative curing reaction and a metal dryer together with the air oxidative curable substance. As these catalysts and metal dryers, cobalt naphthenate,
Examples include metal salts such as lead naphthenate, zirconium naphthenate, cobalt octylate, and zirconium octylate, amine compounds, and the like.

The air oxidative curable substance is a vinyl polymer 1
It is preferable to add 0.01 to 20 parts by weight to 100 parts by weight. If it is less than 0.01 parts by weight, the effect is small, and if it exceeds 20 parts by weight, the physical properties may be adversely affected. <Antioxidant> An antioxidant may be added to the curable composition of the present invention, if necessary. Various kinds of antioxidants are known, and they are described in, for example, "Antioxidant Handbook" issued by Taisei Co., Ltd., "Degradation and Stabilization of Polymer Materials" (235-242) issued by CMC. There are a variety of things, including but not limited to.

For example, MARK PEP-36, MAR
Thioethers such as K AO-23 (all of which are manufactured by ADEKA A-GAS CHEMICAL CO., LTD.), Irgafos38, Irgaf
Examples thereof include phosphorus-based antioxidants such as os168 and IrgafosP-EPQ (all of which are manufactured by Nippon Ciba Geigy). Among them, the hindered phenol compounds shown below are preferable.

As the hindered phenol compound,
Specifically, the following can be exemplified. 2,6-ge-te
rt-butyl-4-methylphenol, 2,6-di-t
ert-Butyl-4-ethylphenol, mono (or di or tri) (α-methylbenzyl) phenol, 2,2 ′
-Methylenebis (4ethyl-6-tert-butylphenol), 2,2'-methylenebis (4methyl-6-t)
ert-butylphenol), 4,4′-butylidenebis (3-methyl-6-tert-butylphenol),
4,4'-thiobis (3-methyl-6-tert-butylphenol), 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, triethyleneglycol-bis- [3- ( 3-t-
Butyl-5-methyl-4hydroxyphenyl) propionate], 1,6-hexanediol-bis [3-
(3,5-di-t-butyl-4-hydroxyphenyl)
Propionate], 2,4-bis- (n-octylthio) -6- (4-hydroxy-3,5-di-t-butylanilino) -1,3,5-triazine, pentaerythrityl-tetrakis [3- ( 3,5-di-t-butyl-4
-Hydroxyphenyl) propionate], 2,2-thio-diethylenebis [3- (3,5-di-t-butyl-
4-Hydroxyphenyl) propionate], octadecyl-3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, N, N′-hexamethylenebis (3,5-di-t-butyl-4) -Hydroxy-hydrocinnamamide), 3,5-di-t-butyl-4-hydroxy-benzylphosphonate-diethyl ester, 1,3,5-trimethyl-2,4,6-tris (3,5 -Di-t-butyl-4-hydroxybenzyl)
Benzene, bis (3,5-di-t-butyl-4-hydroxybenzylphosphonate ethyl) calcium, Tris-
(3,5-di-t-butyl-4-hydroxybenzyl)
Isocyanurate, 2,4-2,4-bis [(octylthio) methyl] o-cresol, N, N'-bis [3-
(3,5-di-t-butyl-4-hydroxyphenyl)
Propionyl] hydrazine, tris (2,4-di-t-
Butylphenyl) phosphite, 2- (5-methyl-)
2-hydroxyphenyl) benzotriazole, 2-
[2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, 2-
(3,5-di-t-butyl-2-hydroxyphenyl)
Benzotriazole, 2- (3-t-butyl-5-methyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-di-t-butyl-2-hydroxyphenyl) -5-chloro Benzotriazole, 2-
(3,5-di-t-amyl-2-hydroxyphenyl)
Benzotriazole, 2- (2'-hydroxy-5'-
Condensation with t-octylphenyl) -benzotriazole, methyl-3- [3-t-butyl-5- (2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate-polyethylene glycol (molecular weight about 300). Substance, hydroxyphenylbenzotriazole derivative, 2- (3,5-di-t-butyl-4-hydroxybenzyl) -2-n-butylmalonate bis (1,2,2,2)
6,6-pentamethyl-4-piperidyl), 2,4-di-t-butylphenyl-3,5-di-t-butyl-4-
Hydroxy benzoate etc. are mentioned.

In terms of trade names, Nocrac 200, Nocrac M-17, Nocrac SP, Nocrac SP-
N, Nocrac NS-5, Nocrac NS-6, Nocrac NS-30, Nocrac 300, Nocrac NS-
7, Nocrac DAH (all manufactured by Ouchi Shinko Chemical Industry Co., Ltd.), MARK AO-30, MARK AO-40,
MARK AO-50, MARK AO-60, MAR
K AO-616, MARK AO-635, MARK
AO-658, MARK AO-80, MARK A
O-15, MARK AO-18, MARK 328,
MARK AO-37 (all manufactured by Adeka Argus Chemical Co., Ltd.), IRGANOX-245, IRGANOX-2
59, IRGANOX-565, IRGANOX-10
10, IRGANOX-1024, IRGANOX-1
035, IRGANOX-1076, IRGANOX-
1081, IRGANOX-1098, IRGANOX
-1222, IRGANOX-1330, IRGANO
X-1425WL (all from Japan Ciba Geigy), Sumilizer GM, Sumilizer G
Examples thereof include A-80 (all of which are manufactured by Sumitomo Chemical Co., Ltd.), but are not limited thereto.

The antioxidant may be used in combination with a light stabilizer which will be described later, and when it is used in combination, the effect thereof is further exhibited, and particularly the heat resistance may be improved, which is particularly preferable. Tinuvin C35 premixed with antioxidant and light stabilizer
3, TINUVIN B75 (all of which are manufactured by Ciba-Geigy) may be used.

The amount of the antioxidant used is the vinyl polymer 1
It is preferably in the range of 0.1 to 10 parts by weight with respect to 00 parts by weight. If it is less than 0.1 parts by weight, the effect of improving the weather resistance is small, and if it exceeds 5 parts by weight, there is no great difference in the effect and it is economically disadvantageous. <Light Stabilizer> A light stabilizer may be added to the curable composition of the present invention, if necessary. Various types of light stabilizers are known, and for example, they are described in "Handbook of Antioxidants" published by Taisei Co., Ltd., "Degradation and Stabilization of Polymer Materials" (235-242), published by CMC. There are a variety of things, including but not limited to.

Although not particularly limited, among the light stabilizers, an ultraviolet absorber is preferred, and specifically, tinuvin P, tinuvin 234, tinuvin 320, tinuvin 32.
6, tinuvin 327, tinuvin 329, tinuvin 213
Benzotriazole compounds such as (all manufactured by Ciba Geigy), triazines such as Tinuvin 1577, benzophenone such as CHIMASSORB 81, Tinuvin 120 (manufactured by Ciba Geigy)
Examples thereof include benzoate compounds and the like.

Further, hindered amine compounds are also preferable, and such compounds are described below. Dimethyl-1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine polycondensate of succinate,
Poly [{6- (1,1,3,3-tetramethylbutyl)
Amino-1,3,5-triazine-2,4-diyl}
{(2,2,6,6-tetramethyl-4-piperidyl)
Imino}], N, N'-bis (3aminopropyl) ethylenediamine-2,4-bis [N-butyl-N- (1,
2,2,6,6-Pentamethyl-4-piperidyl) amino] -6-chloro-1,3,5-triazine condensate, bis (2,2,6,6-tetramethyl-4-piperidyl)
Examples thereof include sebacate and succinic acid-bis (2,2,6,6-tetramethyl-4-piperidinyl) ester.

Speaking by product name, tinuvin 622LD, tinuvin 144, CHIMASSORB944LD, CH
IMASSORB119FL, Irgafos168,
(All above are made by Ciba-Geigy Japan), MARK LA
-52, MARK LA-57, MARK LA-6
2, MARK LA-67, MARK LA-63, M
ARK LA-68, MARK LA-82, MARK
LA-87, (all of which are manufactured by ADEKA AG-Chemicals), SANOL LS-770, SANOL LS-765,
Examples thereof include Sanol LS-292, Sanol LS-2626, Sanol LS-1114, Sanol LS-744, and Sanol LS-440 (all of which are manufactured by Sankyo), but are not limited thereto.

Furthermore, since the combination of the ultraviolet absorber and the hindered amine compound may exert more effect,
Although not particularly limited, they may be used in combination, and it is sometimes preferable to use them in combination.

The light stabilizer may be used in combination with the above-mentioned antioxidant, and by using it in combination, the effect thereof may be further exerted, and particularly weather resistance may be improved, which is particularly preferable. Tinuvin C35 premixed with light stabilizer and antioxidant
3, TINUVIN B75 (all of which are manufactured by Ciba-Geigy) may be used.

The amount of the light stabilizer used is the vinyl polymer 10
It is preferably in the range of 0.1 to 10 parts by weight with respect to 0 parts by weight. If it is less than 0.1 parts by weight, the effect of improving the weather resistance is small, and if it exceeds 5 parts by weight, there is no great difference in the effect and it is economically disadvantageous. Other Additives Various additives may be added to the curable composition of the present invention, if necessary, for the purpose of adjusting various properties of the curable composition or the cured product. Examples of such additives include, for example, flame retardants, curability modifiers, antioxidants, radical inhibitors, ultraviolet absorbers, metal deactivators, ozone deterioration inhibitors, phosphorus peroxide decomposers. , A lubricant, a pigment, a foaming agent, and a photocurable resin. These various additives may be used alone or in combination of two or more.

Specific examples of such additives are, for example,
Japanese Patent Publication No. 4-69659, Japanese Patent Publication No. 7-108928,
JP-A-63-254149, JP-A-64-22904
It is described in each specification of the issue.

The curable composition of the present invention may be prepared as a one-component type in which all compounding ingredients are previously compounded and hermetically sealed and then cured by moisture in the air after construction. You may mix | blend the ingredients, such as a material, a plasticizer, and water, and adjust it as a two-component type which mixes this compounding material and a polymer composition before use. When the two-component type is used, a colorant can be added when the two components are mixed. For example, when providing a sealing material that matches the color of the siding board, it is possible to make abundant color alignment with limited stock. This makes it possible to easily cope with the demand for multiple colors in the market, which is preferable for low-rise buildings. For the colorant, for example, a pigment and a plasticizer, and in some cases, a filler mixed to form a paste is used, which facilitates the work. Further, the curing rate can be finely adjusted at the work site by adding a retarder when the two components are mixed. << Cured Product >><Use> The curable composition of the present invention is not limited,
Sealing materials such as elastic sealing materials for construction and sealing materials for double glazing, electrical / electronic component materials such as solar cell backside sealing materials, electrical insulating materials such as insulation coating materials for electric wires and cables, adhesives, adhesives, Elastic adhesive, paint, powder paint,
Coating materials, foams, potting agents for electrical and electronic products,
Liquids used in films, gaskets, casting materials, various molding materials, and rustproof / waterproof sealing materials for meshed glass and laminated glass end faces (cut parts), automobile parts, electrical parts, various machine parts, etc. It can be used for various purposes such as a sealant.

[0203]

EXAMPLES Hereinafter, specific examples of the present invention will be described together with comparative examples, but the present invention is not limited to the following examples.

In the following Examples and Comparative Examples, "parts" and "%" represent "parts by weight" and "% by weight", respectively. In addition, in this example, "triamine" refers to pentamethyldiethylenetriamine.

In the following examples, "number average molecular weight" and "molecular weight distribution (ratio of weight average molecular weight and number average molecular weight)"
Is gel permeation chromatography (GP
It was calculated by the standard polystyrene conversion method using C).
However, a GPC column packed with polystyrene cross-linked gel (shodex GPC K-804; Showa Denko KK), and chloroform was used as a GPC solvent. (Production Example 1) (Synthesis of carboxylic acid salt having alkenyl group) Methanol (250 mL) was charged with 10-undecenoic acid (150 g,
0.814 mol) and potassium-tert-butoxide (91.3 g, 0.814 mol) were added, and the mixture was stirred at 0 ° C. The volatile matter was distilled off under reduced pressure to obtain potassium undecenoate represented by the following formula. _{CH 2 = CH- (CH 2)} 8 -CO 2 - + K (BA semibatch polymerization -1 kg) under a nitrogen atmosphere in a glass reaction vessel of 2L, cuprous bromide (8.39g, 0.0585mol), acetonitrile ( 112 mL) was charged and the mixture was heated at 70 ° C. for 60 minutes.
Butyl acrylate (224mL, 1.56mo
l) Diethyl 2,5-dibromoadipate (17.6)
g, 0.0488 mol) was added and the mixture was further stirred for 30 minutes. Triamine (0.41 mL, 1.95 mmo
1) was added to initiate polymerization. After that, the reaction solution was sampled to trace the reaction and triamine (5.
66 mL, 27.1 mmol) was added, and butyl acrylate (895 mL, 6.2) was added 55 minutes after the reaction started.
4 mol) was added over 140 minutes. Heating was continued for an additional 170 minutes after the addition of butyl acrylate. At this time, the consumption rate of butyl acrylate was 92.9% according to the GC measurement.
After the mixture was diluted with toluene and treated with activated alumina, the volatile matter was heated under reduced pressure and evaporated to obtain a colorless transparent polymer [1]. The polymer [1] obtained had a number average molecular weight of 21,000 and a molecular weight distribution of 1.1.

The above polymer [1] (0.35 kg), potassium undecenoate (8.85 g) and dimethylacetamide (350 mL) were added to a glass container, and heated and stirred at 70 ° C. for 3 hours under a nitrogen atmosphere. The volatile components of the reaction solution were removed under reduced pressure heating, then diluted with toluene and filtered. The filtrate was evaporated under reduced pressure to remove volatile components, and the solution was concentrated.
Aluminum silicate (made by Kyowa Chemical Co., Ltd., Kyoward 700P)
20% by weight of EL) was added to the polymer, and the mixture was heated and stirred at 100 ° C. for 3 hours. The reaction solution was diluted with toluene and filtered, and the volatile component was distilled off from the filtrate under heating under reduced pressure to obtain an alkenyl group-terminated polymer (polymer [2]).
^{By 1} H-NMR measurement, the number of alkenyl groups introduced per polymer molecule was 1.9.

Polymer [2] (350
g), trimethoxysilane (15.0 mL), methyl orthoformate (3.6 mL), and zero-valent platinum 1,1,
A 3,3-tetramethyl-1,3-divinyldisiloxane complex was charged. However, the amount of platinum catalyst used was 5 × 10 ⁻⁴ equivalent in molar ratio with respect to the alkenyl group of the polymer. After the reaction mixture was reacted by heating, the volatile matter of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl polymer (polymer [P1]). The number average molecular weight of the obtained polymer was 26000 and the molecular weight distribution was 1.2. The average number of silyl groups introduced per molecule of polymer is ¹ H
The number was 1.4 as determined by NMR analysis.

Similarly, the polymer [2] was placed in a 1 L pressure resistant reactor.
And trimethoxysilane, methyl orthoformate, and 0
After charging 1,1,3,3-tetramethyl-1,3-divinyldisiloxane complex of valent platinum and reacting it with sufficient heating, the volatile content of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl-based polymer. A polymer (polymer [P2]) was obtained. The number average molecular weight of the obtained polymer was 26000 and the molecular weight distribution was 1.2. The average number of silyl groups introduced per molecule of the polymer was 2.0 as determined by ¹ H NMR analysis.

Similarly, the polymer [2] was placed in a 1 L pressure resistant reactor.
And dimethoxymethylhydrosilane, methyl orthoformate, and zero-valent platinum 1,1,3,3-tetramethyl-
After charging the 1,3-divinyldisiloxane complex and reacting it by heating, the volatile components of the mixture were distilled off under reduced pressure.
A silyl group-terminated vinyl polymer (polymer [P3]) was obtained. The number average molecular weight of the obtained polymer was 26000 and the molecular weight distribution was 1.2. The average number of silyl groups introduced per molecule of the polymer was 1.4 as determined by ¹ H NMR analysis. (Production Example 2) CuBr (8.39 g, 0.0585 m) was placed in a 2 L separable flask equipped with a reflux tube and a stirrer.
ol) was charged and the inside of the reaction vessel was replaced with nitrogen. Acetonitrile (112 mL) was added, and the mixture was placed in an oil bath at 70 ° C for 3 times.
Stir for 0 minutes. Butyl acrylate (224m
L) diethyl 2,5-dibromoadipate (23.4
g, 0.0650 mol), triamine (0.500 m
L, 0.244 mmol) was added to start the reaction. 7
While heating and stirring at 0 ° C, butyl acrylate (895m
L) was continuously added dropwise over 150 minutes. Triamine (2.50 mL, 12.0 mL) was added during the dropwise addition of butyl acrylate.
mmol) was added. After 310 minutes from the start of the reaction, 1,7-octadiene (288 mL, 1.95 mo
l), triamine (4.0 mL, 0.0195 mol)
Was added, and the mixture was continuously heated and stirred at 70 ° C. for 240 minutes. The reaction mixture was diluted with hexane, passed through an activated alumina column, and the volatile matter was distilled off under reduced pressure to obtain an alkenyl group-terminated polymer (polymer [3]). The polymer [3] had a number average molecular weight of 20,000 and a molecular weight distribution of 1.3.
The polymer [3] was placed in a 2 L separable flask equipped with a reflux tube.
(1.0 kg), potassium benzoate (34.8 g),
N, N-Dimethylacetic acid amide (1 L) was charged, and the mixture was heated with stirring at 70 ° C. for 15 hours under a nitrogen stream. N under heating and reduced pressure
After removing N-dimethyl acetic acid amide, it was diluted with toluene. Solids insoluble in toluene (KBr and excess potassium benzoate) were filtered through an activated alumina column. The polymer [4] was obtained by distilling off the volatile components of the filtrate under reduced pressure.

A 2 L round bottom flask equipped with a reflux tube was charged with the polymer [4] (1 kg), aluminum silicate (200 g, Kyowa Chemical Co., Ltd., Kyoward 700 PEL) and toluene (1 L), and the mixture was heated at 100 ° C. under a nitrogen stream at 5. The mixture was heated and stirred for 5 hours. After removing aluminum silicate by filtration, toluene in the filtrate was distilled off under reduced pressure to obtain a polymer [5].

Polymer [5] (720) was added to a 1 L pressure resistant reactor.
g), trimethoxysilane (31.7 mL), methyl orthoformate (8.1 mL), and zero-valent platinum 1,1,
A 3,3-tetramethyl-1,3-divinyldisiloxane complex was charged. However, the amount of platinum catalyst used was 5 × 10 ⁻⁴ equivalent in molar ratio with respect to the alkenyl group of the polymer. After the reaction mixture was heated and reacted, the volatile matter of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl polymer (polymer [P4]). The number average molecular weight of the obtained polymer was 2300 as measured by GPC (in terms of polystyrene).
0, the molecular weight distribution was 1.4. The average number of silyl groups introduced per molecule of the polymer was determined by ¹ H NMR analysis to be 1.7.

Similarly, the polymer [5] was placed in a 1 L pressure resistant reactor.
Trimethoxysilane, dimethoxymethylhydrosilane,
Methyl orthoformate, and zero-valent platinum 1,1,3,3-
A tetramethyl-1,3-divinyldisiloxane complex was charged. However, the input amounts of trimethoxysilane and dimethoxymethylhydrosilane were 70:30 in terms of molar ratio. After the reaction mixture was heated and reacted, the volatile matter of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl polymer (polymer [P5]). The number average molecular weight of the obtained polymer was 2300 as measured by GPC (in terms of polystyrene).
0, the molecular weight distribution was 1.4. When the average number of silyl groups introduced per molecule of the polymer was determined by ¹ HNMR analysis, it was 1.2 trimethoxy groups and 0.5 dimethoxymethyl groups.

Similarly, the polymer [5] was placed in a 1 L pressure resistant reactor.
Dimethoxymethylhydrosilane, methyl orthoformate, and zero-valent platinum 1,1,3,3-tetramethyl-1,3
-A divinyldisiloxane complex was charged, the mixture was heated and reacted, and then the volatile matter of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl polymer (polymer [P6]). The number average molecular weight of the obtained polymer was 23,000 as measured by GPC (in terms of polystyrene), and the molecular weight distribution was 1.4. The average number of silyl groups introduced per molecule of the polymer was determined by ¹ H NMR analysis to be 1.7. (Production Example 3) CuBr (251.82 g, 1.76 mol) was charged into a 50 L polymerization machine equipped with a reflux tower and a stirrer, and the inside of the reaction vessel was replaced with nitrogen. Acetonitrile (3
(360 mL) was added, and the mixture was stirred at 68 ° C. for 20 minutes. Butyl acrylate (6.80 L), diethyl 2,5-dibromoadipate (526.70 g, 1.46 mo)
l), triamine (12.0 mL, 0.0585 mo
1) was added to start the reaction. While heating and stirring at 70 ° C., butyl acrylate (26.80 L) was continuously added dropwise over 204 minutes. Triamine (36.0 mL, 0.176 mol) was added during the dropwise addition of butyl acrylate. After 397 minutes from the start of the reaction, 1,7-octadiene (8640 mL, 58.5 mol), triamine (1
20 mL, 0.585 mol) was added and 240 at 80 ° C.
The mixture was heated and stirred for minutes. Then triamine (80 mL, 0.3
90 mol) was added, and the mixture was heated and stirred at 90 ° C. for 240 minutes.

The reaction mixture was diluted with toluene, the insoluble copper complex was removed using a separator plate type centrifugal settler, and the mixture was passed through an activated alumina column, and then the volatile component was distilled off under reduced pressure to give an alkenyl group-terminated polymer. (Polymer [6]) was obtained. The polymer [6] had a number average molecular weight of 24,000 and a molecular weight distribution of 1.21. In a 10 L separable flask equipped with a reflux tube, the polymer [6] (3.0 kg) and potassium acetate (2
4.5 g) and N, N-dimethyl acetic acid amide (3 L) were charged, and the mixture was heated with stirring at 100 ° C. for 10 hours under a nitrogen stream. After removing N, N-dimethylacetamide under heating and reduced pressure,
Diluted with toluene. Solids insoluble in toluene (KBr
And excess potassium acetate) was filtered through an activated alumina column. The polymer [7] was obtained by distilling off the volatile components of the filtrate under reduced pressure.

Polymer [7] (3 kg), hydrotalcite (450 g, manufactured by Kyowa Chemical Co., Ltd., Kyoward 500 SH, Kyoward 70) was placed in a 10 L round bottom flask equipped with a reflux tube.
0 SL) and xylene (0.6 L) were charged, and the mixture was heated and stirred at 130 ° C. for 5.0 hours under a nitrogen stream. After removing the aluminum silicate by filtration, the filtrate was distilled off under reduced pressure to obtain a polymer [8].

Polymer [8] (1000
g), trimethoxysilane (52 mL), methyl orthoformate (13.3 mL), and zero-valent platinum 1,1,3.
3-Tetramethyl-1,3-divinyldisiloxane complex was charged. A platinum catalyst and trimethoxysilane were added during the reaction. The total amount of trimethoxysilane used was 69 mL, and the total amount of platinum catalyst used was 1 × 10 ⁻³ equivalent in molar ratio with respect to the alkenyl groups of the polymer. After the reaction by heating, the volatile components of the mixture are distilled off under reduced pressure to give a silyl group-terminated vinyl polymer (polymer [P7]).
Got The number average molecular weight of the obtained polymer was 28,500 by GPC measurement (in terms of polystyrene), and the molecular weight distribution was 1.4. The average number of silyl groups introduced per molecule of the polymer was 2.5 as determined by ¹ H NMR analysis.

Similarly, the polymer [8], 3-
After charging mercaptopropyltrimethoxysilane and 2,2′-azobis-2-methylbutyronitrile and heating and reacting them, the volatile content of the mixture (so that unreacted 3-mercaptopropyltrimethoxysilane does not remain) By sufficiently distilling off under reduced pressure, a silyl group-terminated vinyl polymer (polymer [P8]) was obtained. The number average molecular weight of the obtained polymer was 2850 as measured by GPC (in terms of polystyrene).
0, the molecular weight distribution was 1.4. The average number of silyl groups introduced per molecule of the polymer was determined by ¹ H NMR analysis and found to be 2.8.

Similarly, the polymer [8] (10
00g), dimethoxymethylhydrosilane (45m
L), methyl orthoformate (13.3 mL), and zero-valent platinum 1,1,3,3-tetramethyl-1,3-divinyldisiloxane complex were charged. The polymer [P7]
Similarly, a platinum catalyst and dimethoxymethylsilane were added during the reaction. After sufficiently reacting by heating, the volatile matter of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl polymer (polymer [P9]). The number average molecular weight of the obtained polymer was 2850 as measured by GPC (in terms of polystyrene).
0, the molecular weight distribution was 1.4. The average number of silyl groups introduced per molecule of the polymer was 2.5 as determined by ¹ H NMR analysis. (Production Example 4) Hydroxyethyl-2 was prepared based on the method described in Example 2 described in JP-A No. 11-080249.
-Bromopropionate as an initiator, cuprous bromide and 2,2-bipyridyl as a polymerization catalyst, acrylic acid-n
-Butyl was polymerized, and 2-hydroxyethyl methacrylate was added at the final stage of the polymerization to obtain poly-n-butyl acrylate (polymer [9]) having a hydroxyl group at the terminal. The number average molecular weight of the obtained polymer was 6100 as measured by GPC (in terms of polystyrene), and the molecular weight distribution was 1.3.

Isocyanatopropyltrimethoxysilane was added to this to carry out a urethanization reaction to convert the terminal hydroxyl group into a trimethoxysilyl group to give a vinyl polymer having a trimethoxysilyl group (polymer [P10]). Obtained. The average number of silyl groups introduced per molecule of the polymer was determined by ¹ H NMR analysis to be 3.3. (Production Example 5) CuB was added to a 250 L reactor equipped with a stirrer.
After charging r (923.3 g, 6.44 mol) and sealing the inside of the reaction vessel with nitrogen, acetonitrile (6671 g) was added.
Was added and the mixture was stirred at 65 ° C. for 15 minutes. Butyl acrylate (22.0 kg), diethyl 2,5-dibromoadipate (1931.2 g, 5.36 mol), acetonitrile (3000 g), triamine (44.8 mL,
214.6 mmol) was added to start the reaction. 80 ° C
Butyl acrylate (88.0k)
g) was continuously added dropwise. Triamine (179.2 mL, 859.5 mmol) was added during the dropwise addition of butyl acrylate.
Was added. Then, after heating and stirring at 80 ° C., 1,7-octadiene (15.847 kg) and triamine (67
2.0 mL, 3.21 mol) was added, and further 80 ° C.
The polymer [1
0] containing a reaction mixture (polymerization reaction mixture [1
0 ']) was obtained. The volatile component of the reaction mixture [10 '] was distilled off under reduced pressure to obtain an alkenyl group-terminated polymer (polymer [10]).

A 250 L reactor equipped with a stirrer was charged with polymer [10] (100 kg) and methylcyclohexane (10 kg).
0 kg) and an adsorbent (2 kg each, manufactured by Kyowa Chemical Co., Ltd., KYOWARD 500SH, KYOWARD 700SL) are charged, and the mixture is heated and stirred at 150 ° C. for 2 hours under an oxygen / nitrogen mixed gas atmosphere to separate a solid component and polymer [11 ] Was obtained.

In a 10 L separable flask equipped with a reflux tube, the polymer [11] (3.2 kg) and potassium acetate (74.1) were added.
g) and N, N-dimethyl acetic acid amide (3.2 L) were charged, and the mixture was heated with stirring at 100 ° C. for 8 hours under a nitrogen stream. After removing N, N-dimethylacetic acid amide under heating and reduced pressure, the mixture was diluted with toluene. Solids insoluble in toluene (KBr and excess potassium acetate) were filtered through an activated alumina column. The polymer [1] was obtained by distilling off the volatile components of the filtrate under reduced pressure.
2] was obtained.

In a 10 L separable flask equipped with a reflux tube, the polymer [12] (3 kg), adsorbent (1800 g, manufactured by Kyowa Chemical Co., Ltd., KYOWARD 500SH, KYOWARD 700S).
L) and xylene (1.5 L) were charged, and under a nitrogen stream 13
The mixture was heated and stirred at 0 ° C for 5.0 hours. After removing the adsorbent by filtration, the filtrate was distilled off under reduced pressure to obtain a polymer [1
3] was obtained.

In a 2 L reaction vessel, the polymer [13] (1300 g) obtained in Production Example 1, dimethoxymethylhydrosilane (58.5 mL), methyl orthoformate (17.3 m) was added.
L) and zero-valent platinum 1,1,3,3-tetramethyl-1,3-divinyldisiloxane complex were charged. The amount of platinum catalyst used was 30 mg in terms of platinum based on 1 kg of the polymer. After heating and reacting at 100 ° C. for 3.5 hours, the volatile matter of the mixture was distilled off under reduced pressure to obtain a silyl group-terminated vinyl polymer (polymer [P11]). The number average molecular weight of the obtained polymer was measured by GPC (in terms of polystyrene).
Was 27,000 and the molecular weight distribution was 1.4. The average number of silyl groups introduced per molecule of polymer is ¹ H
The number was 1.8 as determined by NMR analysis. (Production Example 6) CuBr (188.02) was used in the same manner as in Production Example 3 using a 50 L polymerization machine equipped with a reflux tower and a stirrer.
g, 1.3107 mol), acetonitrile (3226)
mL), butyl acrylate (9396 mL), ethyl acrylate (13060 mL), 2-methoxyethyl acrylate (9778 mL), diethyl 2,5-dibromoadipate (786.55 g), triamine (187.7).
6 mL), 1,7-octadiene (6452 mL) as a raw material, the reacted reaction mixture was diluted with toluene, passed through an activated alumina column, and then volatile components were distilled off under reduced pressure to obtain an alkenyl group-terminated copolymer { An alkenyl-terminated poly (butyl acrylate, ethyl acrylate, methoxyethyl acrylate) copolymer: copolymer [14]} was obtained.

In a 10 L separable flask equipped with a reflux tube, the copolymer [14] (3.0 kg) and potassium acetate (24.
5 g) and N, N-dimethylacetic acid amide (3 L) were charged, and the mixture was heated with stirring at 100 ° C. for 10 hours under a nitrogen stream. After removing N, N-dimethylacetic acid amide under heating and reduced pressure, the mixture was diluted with toluene. Solids insoluble in toluene (KBr and excess potassium acetate) were filtered through an activated alumina column. The volatile component of the filtrate was distilled off under reduced pressure to obtain an alkenyl-terminated copolymer {alkenyl-terminated poly (butyl acrylate, ethyl acrylate, methoxyethyl acrylate)
Copolymer: copolymer [15]} was obtained.

In a 10 L round bottom flask equipped with a reflux tube, the copolymer [15] (3 kg) and hydrotalcite (450 g,
Kyowa Chemical Co., Ltd., KYOWARD 500SH, KYOWARD 7
00 SL) and xylene (0.6 L) were charged, and the mixture was heated and stirred at 130 ° C. for 5.0 hours under a nitrogen stream. After removing aluminum silicate by filtration, the filtrate was distilled off under reduced pressure to obtain a copolymer [16].

Copolymer [16] (100
0g), dimethoxymethylhydrosilane (29.8m)
L), methyl orthoformate (11.7 mL), and 0-valent platinum 1,1,3,3-tetramethyl-1,3-divinyldisiloxane complex were charged. The platinum catalyst and dimethoxymethylsilane were added during the reaction. After sufficiently heating and reacting, the volatile matter of the mixture is distilled off under reduced pressure to obtain a silyl group-terminated vinyl copolymer (copolymer [P1
2]) was obtained. The number average molecular weight of the obtained copolymer is GP
It was 21500 and the molecular weight distribution was 1.3 by C measurement (polystyrene conversion). The average number of silyl groups introduced per molecule of the copolymer was 2.3 as determined by ¹ H NMR analysis. (Production Example 7) Isocyanate propyltrimethoxysilane was added to polypropylene alcohol having a number average molecular weight of 1200 and blocked at one end with a butoxy group (commercial product Newpol LB-285, manufactured by Sanyo Kasei) to carry out a urethanization reaction, The terminal hydroxyl group was converted to a trimethoxysilyl group to obtain a polyether polymer having a crosslinkable silyl group (polymer [P13]). (Production Example 8) Propylene oxide was subjected to ring-opening polymerization using allyl alcohol as an initiator to give polyoxypropylene monool having a 2,000 molecular weight and one terminal allyloxy group, and subsequently, in the presence of triethylamine, benzoyl chloride in an equimolar amount to hydroxyl group. It was made to react. The reaction mixture was diluted with 5-fold amount of hexane and washed with water to remove triethylamine hydrochloride, and hexane was distilled off to obtain a compound having a benzoyloxy group at one end and an allyl group at the other end. Next, dimethoxymethylsilane and chloroplatinic acid were used to convert the allyl group at one end into a dimethoxymethylsilylpropyl group to obtain a polyether polymer having a crosslinkable silyl group (polymer [P14]). The molecular weight was 2500 and the viscosity was 0.7 Pa · s (23 ° C.). (Production Example 9) Using 2-ethylhexanol as an initiator,
According to the method described in JP-A-3-72527, propylene oxide is reacted in the presence of a double metal cyanide complex catalyst to produce polyoxypolypropylene monool, and then the terminal hydroxyl group is reacted with allyl chloride to obtain an unsaturated group. After introducing the above, a further reaction was carried out with trimethoxysilane to obtain a polyether polymer having a crosslinkable silyl group at one end (polymer [P15]). Number average molecular weight is 300
The viscosity was 0 and the viscosity was 0.6 Pa · s (23 ° C.). (Production Example 10) Molecular weight 3000 having hydroxyl groups at both ends
Using polypropylene glycol as an initiator
No. 72527, a propylene oxide is reacted in the presence of a double metal cyanide complex catalyst to obtain a polyoxypolypropylene monool, and the terminal hydroxyl group is reacted with an equivalent amount or less of allyl chloride to introduce an unsaturated group. Thereafter, an equivalent amount or less of methyldimethoxysilane was further reacted to obtain a polyether polymer having an average of 1.2 or less crosslinkable silyl groups (polymer [P16]). The number average molecular weight was 8,000, and the average number of silyl groups introduced per molecule of the polymer was determined by ¹ H NMR analysis to be 0.9. (Production Example 11) Molecular weight 3000 having hydroxyl groups at both ends
Using polypropylene glycol as an initiator
No. 72527, by reacting propylene oxide in the presence of a complex metal cyanide complex catalyst to obtain polyoxypolypropylene monool, and reacting allyl chloride with a terminal hydroxyl group to introduce an unsaturated group, Then, an equivalent amount of methyldimethoxysilane was reacted with the unsaturated group to obtain a polyether polymer having a crosslinkable silyl group at the molecular end (polymer [P17]). The number average molecular weight was 16,000, and the average number of silyl groups introduced per molecule of the polymer was determined by ¹ HNMR analysis to be 1.
It was six. (Examples 1 to 16) Polymers obtained in Production Examples 1 to 4 [P
1 to P12] 100 parts of colloidal calcium carbonate (white luster C
CR: 150 parts of Shiraishi calcium), 20 parts of heavy calcium carbonate (Nanox 25A: made of Maruo calcium), 10 parts of titanium oxide (Taipaque R-820 (rutile type): made by Ishihara Sangyo), obtained in Production Examples 7 to 10. Polymer [P1
3 to P16] (described in Table 1) as a plasticizer, 50 parts, a thixotropic agent (Disparlon 6500 manufactured by Kusumoto Kasei) 2
Parts, anti-aging agent (SANOL LS-765 (HALS):
Sankyo, Tinuvin 213: Ciba Specialty Chemicals) 1 part each, and after thoroughly mixing with 3 paint rolls, other various additives are added,
Apply a sheet of about 2mm thickness using various curing catalysts,
After curing at room temperature and allowing the cured product to stand at room temperature for 1 week, the flexibility of the cured product was evaluated by touch with a finger. Table 1 shows the number of additions of various compounding agents and curing agents and the evaluation results.
In the evaluation of flexibility of the present invention, ◯ represents a good level as a low modulus sealant, and x represents a too hard level (that is, unsuitable) as a low modulus sealant. For oil bleed, the cured product should be
After allowing to stand for 1 week in an atmosphere of 0 ° C. × 80%, the surface state of the cured product was confirmed visually and by touch with a finger. In the evaluation of the oil bleed of the present invention, ◯ represents a state in which no oil bleed is observed (that is, a good state), X represents a surface that is oily and sticky (that is, defective), and Δ represents an intermediate state between these. ing. All of the cured products maintained sufficient flexibility as a low modulus sealant, and no oil bleed was observed even under the conditions of high temperature and high humidity. (Comparative Example 1) In contrast to the polymer [P3] obtained in Production Example 1, the polymer [P3] used as a plasticizer in Examples 1 to 16 was used.
[13 to P16], a cured product was prepared in the same manner as in Examples 1 to 16 except that 2-ethylhexyl phthalate was used, and the flexibility and oil bleed of the cured product were similarly observed and evaluated. . Table 1 shows the addition number of each compounding agent and curing agent and each result. (Comparative Example 2) In contrast to the polymer [P6] obtained in Production Example 2, the polymer [P] used as a plasticizer in Examples 1 to 16 was used.
13-P16] except that phthalic acid-isodecyl was used instead of [13 to P16] to prepare cured products in the same manner as in Examples 1 to 16,
The flexibility and oil bleed of the cured product were observed and evaluated. Table 1 shows the addition number of each compounding agent and curing agent and each result.
The results are shown in Table 1. (Comparative Example 3) In contrast to the polymer [P9] obtained in Production Example 3, the polymer [P9] used as a plasticizer in Examples 1 to 16 was used.
13 to P16] was used to prepare a cured product in the same manner as in Examples 1 to 16, and the flexibility and oil bleed of the cured product were observed and evaluated. Table 1 shows various compounding agents and curing agents, the number of additions of the curing agents, and the respective results. The results are shown in Table 1.

[0227]

[Table 1] Flexibility: Good: Poor: Poor (Hard: Not suitable as a sealant for low modulus) Oil bleed: Good ← ○ ＞ △ ＞ × → Poor (Beta) Plasticizer: P12 to P15, DOP (Dioctyl phthalate: Kyowa Fermentation) Made), DIDP (diisodecyl phthalate: made by Kyowa Fermentation) Curing catalyst: Cat.A ... U-220 (dibutyl tin diacetylacetonate, 2)
Part), Cat.B ... (tin octylate / laurylamine = 3 parts / 1 part) Air-oxidation curable substances: C ... tung oil, D ... linseed oil, E ... 1,2
-Polydiene photo-curable substance: F ... Pentaerythritol triacrylate, G ... Trimethylolpropane triacrylate silanol compound: H ... Hexamethyldisilane, I ... Trimethylphenoxysilane,
J ... Tris (trimethylsilyl) compound of trimethylolpropane (Examples 17 to 18) Polymers obtained in Production Example 5 [P1
1] 100 parts of 150 parts of colloidal calcium carbonate (white Shirahana CCR: made of Shiraishi calcium), 20 parts of heavy calcium carbonate (Nanox 25A: made of Maruo calcium), titanium oxide (Taipec R-820 (rutile type): made by Ishihara Sangyo) 1
0 part, 60 parts of [P15 and P14] plasticizer, 2 parts of thixotropic agent (Disparlon 6500 manufactured by Kusumoto Kasei),
1 part of each anti-aging agent (SANOL LS-765 (HALS): Sankyo, Tinuvin 213: Ciba Specialty Chemicals) was mixed and thoroughly mixed with a planetary mixer, and then a silanol-containing compound (A-1120, A
-171: All made by Nippon Unicar) 1 part each and a curing catalyst (U-220 (dibutyltin diacetylacetonate):
2 parts (manufactured by Nitto Kasei) was further added to prepare a one-pack compounding composition. The viscosity of the composition at 23 ° C. was measured.
Further, it was applied to a sheet having a thickness of about 2 mm and cured at room temperature, and the flexibility and oil bleed of the cured product were observed and evaluated in the same manner as in Examples 1 to 17. Table 2 shows the addition number of each compounding agent and curing agent and each result.

[0228]

[Table 2] (Example 19) 50 parts of [P10] obtained in Production Example 4 and 50 parts of [P17] obtained in Production Example 11 were mixed 10
40 parts of [P15] obtained in Production Example 9 with respect to 0 parts,
150 parts of colloidal calcium carbonate (Shirakanka CCR: made of Shiraishi calcium), heavy calcium carbonate (Nanox 25
A: 20 parts of Maruo calcium), 10 parts of titanium oxide (Taipaque R-820 (rutile type): Ishihara Sangyo), 2 parts of thixotropic agent (Disparlon 6500 Kusumoto Kasei),
After adding 1 part of each anti-aging agent (Sanol LS-765 (HALS): Sankyo, Tinuvin 213: Ciba Specialty Chemicals), and thoroughly mixing with a planetary mixer, a silanol-containing compound (A-1120, A
-171: All made by Nippon Unicar) 1 part each and a curing catalyst (U-220 (dibutyltin diacetylacetonate):
2 parts by Nitto Kasei) was further added to prepare a curable composition. The curable composition was treated with about 2 as in Examples 1-18.
A sheet having a thickness of mm was coated, cured at room temperature, and the cured product was allowed to stand at room temperature for 1 week, and then the flexibility of the cured product was evaluated. Further, the cured product was allowed to stand in an atmosphere of 30 ° C. × 80% for 1 week, and then the surface condition of the cured product was observed.
The results are shown in Table 3. (Example 20) 50 parts of [P10] obtained in Production Example 4 and 50 parts of [P17] obtained in Production Example 11 were mixed 10
To 0 parts, 70 parts of [P16] obtained in Production Example 10, 150 parts of colloidal calcium carbonate (Shirakanka CCR: made of Shiraishi calcium), heavy calcium carbonate (Nanox 25
A: 20 parts of Maruo calcium), 10 parts of titanium oxide (Taipaque R-820 (rutile type): Ishihara Sangyo), 2 parts of thixotropic agent (Disparlon 6500 Kusumoto Kasei),
After adding 1 part of each anti-aging agent (Sanol LS-765 (HALS): Sankyo, Tinuvin 213: Ciba Specialty Chemicals), and thoroughly mixing with a planetary mixer, a silanol-containing compound (A-1120, A
-171: All made by Nippon Unicar) 1 part each and a curing catalyst (U-220 (dibutyltin diacetylacetonate):
2 parts by Nitto Kasei) was further added to prepare a curable composition. The curable composition was treated with about 2 as in Examples 1-18.
A sheet having a thickness of mm was coated, cured at room temperature, and the cured product was allowed to stand at room temperature for 1 week, and then the flexibility of the cured product was evaluated. Further, the cured product was allowed to stand in an atmosphere of 30 ° C. × 80% for 1 week, and then the surface condition of the cured product was observed.
The results are shown in Table 3. (Example 21) 70 parts of [P12] obtained in Production Example 6 and 30 parts of [P17] obtained in Production Example 11 were mixed 10
40 parts of [P15] obtained in Production Example 9 with respect to 0 parts,
150 parts of colloidal calcium carbonate (Shirakanka CCR: made of Shiraishi calcium), heavy calcium carbonate (Nanox 25
A: 20 parts of Maruo calcium), 10 parts of titanium oxide (Taipaque R-820 (rutile type): Ishihara Sangyo), 2 parts of thixotropic agent (Disparlon 6500 Kusumoto Kasei),
After adding 1 part of each anti-aging agent (Sanol LS-765 (HALS): Sankyo, Tinuvin 213: Ciba Specialty Chemicals), and thoroughly mixing with a planetary mixer, a silanol-containing compound (A-1120, A
-171: All made by Nippon Unicar) 1 part each and a curing catalyst (U-220 (dibutyltin diacetylacetonate):
2 parts by Nitto Kasei) was further added to prepare a curable composition. The curable composition was treated with about 2 as in Examples 1-18.
A sheet having a thickness of mm was coated, cured at room temperature, and the cured product was allowed to stand at room temperature for 1 week, and then the flexibility of the cured product was evaluated. Further, the cured product was allowed to stand in an atmosphere of 30 ° C. × 80% for 1 week, and then the surface condition of the cured product was observed.
The results are shown in Table 3. Example 22 70 parts of [P12] obtained in Production Example 6 and 30 parts of [P17] obtained in Production Example 11 were mixed 10
To 0 part, 70 parts of [P16] obtained in Production Example 10, 150 parts of colloidal calcium carbonate (Shirakanka CCR: made of Shiraishi calcium), heavy calcium carbonate (Nanox 25
A: 20 parts of Maruo calcium), 10 parts of titanium oxide (Taipaque R-820 (rutile type): Ishihara Sangyo), 2 parts of thixotropic agent (Disparlon 6500 Kusumoto Kasei),
After adding 1 part each of an anti-aging agent (Sanol LS-765 (HALS): Sankyo, Tinuvin 213: Ciba Specialty Chemicals) and thoroughly mixing with a planetary mixer, a silanol-containing compound (A-1120, A
-171: All made by Nippon Unicar) 1 part each and a curing catalyst (U-220 (dibutyltin diacetylacetonate):
2 parts by Nitto Kasei) was further added to prepare a curable composition. The curable composition was treated with about 2 as in Examples 1-18.
The sheet was applied to a sheet having a thickness of mm, cured at room temperature, and the cured product was allowed to stand at room temperature for 1 week to evaluate the flexibility of the cured product. Further, the cured product was allowed to stand in an atmosphere of 30 ° C. × 80% for 1 week, and then the surface condition of the cured product was observed.
The results are shown in Table 3.

[0229]

[Table 3] Curable compositions using a vinyl polymer having at least one crosslinkable silyl group and a polyether polymer having 1.2 or less crosslinkable silyl groups on average have good viscosity and flexibility. Showed sex. The oil bleed was also good.

[0230]

The present invention provides a curable composition comprising a vinyl polymer having at least one crosslinkable silyl group and a polyether polymer having an average of 1.2 or less crosslinkable silyl groups. The curable composition has a low viscosity, has good workability, and suppresses the bleeding of the plasticizer onto the surface of the cured product obtained by curing the curable composition. Pollution (including sex), and
It is possible to realize a composition in which the cured product has a low modulus and a high elongation, maintains its mechanical properties for a long period of time, and has good alkyd coatability and a high gel fraction.

Claims (17)

[Claims] 1. The following two components: a vinyl polymer (I) having at least one crosslinkable silyl group, and a polyether polymer (I) having an average of 1.2 or less crosslinkable silyl groups. A curable composition comprising II). 2. The curable composition according to claim 1, wherein the crosslinkable silyl group of the polyether polymer (II) is at the end of the main chain. 3. The curing according to claim 2, wherein the crosslinkable silyl group of the polyether polymer (II) has only one end in the main chain and has no other end. Sex composition. 4. The vinyl polymer (I) having a molecular weight distribution of less than 1.8 is contained.
Curable composition as described in any one of 3. 5. A main chain mainly produced by polymerizing a monomer selected from the group consisting of (meth) acrylic monomers, acrylonitrile monomers, aromatic vinyl monomers, fluorine-containing vinyl monomers and silicon-containing vinyl monomers. Vinyl polymer (I)
The curable composition according to any one of claims 1 to 4, further comprising: 6. The curable composition according to claim 5, wherein the main chain contains a vinyl polymer (I) which is a (meth) acrylic polymer. 7. The main chain contains a vinyl polymer (I) which is an acrylic polymer.
The curable composition according to. 8. The curable composition according to claim 7, wherein the main chain contains a vinyl polymer (I) which is an acrylic ester polymer. 9. The curable composition according to claim 8, wherein the main chain contains a vinyl polymer (I) which is a butyl acrylate polymer. 10. The polyether polymer (II) is added in an amount of 5 to 100 relative to 100 parts by weight of the vinyl polymer (I).
The curable composition according to claim 1, wherein the curable composition is contained in an amount of 1 part by weight. 11. The third component further comprises a polyether polymer (III) having at least 1.2 crosslinkable functional groups, which is characterized in that
10. The curable composition according to any one of 10. 12. 10 to 50 parts by weight of a polyether polymer (II) having an average of 1.2 or less crosslinkable silyl groups per 100 parts by weight of a vinyl polymer (I), The curable composition according to claim 11, comprising a polyether polymer (III) having 1.2 or more crosslinkable functional groups. 13. The vinyl-based polymer (I), wherein the main chain thereof contains a vinyl-based polymer produced by a living radical polymerization method.
Curable composition as described in any one of these. 14. The curable composition according to claim 13, wherein the living radical polymerization contains a vinyl polymer which is atom transfer radical polymerization. 15. A vinyl-based heavy-weight catalyst in which atom transfer radical polymerization is catalyzed by a complex selected from transition metal complexes whose central metal is an element of Group 7, 8, 9, 10, or 11 of the periodic table. 15. Containing a coalesced material.
The curable composition according to. 16. The curable composition according to claim 15, wherein the metal complex used as a catalyst contains a vinyl polymer which is a complex selected from the group consisting of copper, nickel, ruthenium, and iron complexes. Composition. 17. The metal complex used as a catalyst contains a vinyl polymer which is a complex of copper.
The curable composition according to item 6.