WO1999043719A1 - Polymere et composition solidifiable - Google Patents
Polymere et composition solidifiable Download PDFInfo
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- WO1999043719A1 WO1999043719A1 PCT/JP1999/000979 JP9900979W WO9943719A1 WO 1999043719 A1 WO1999043719 A1 WO 1999043719A1 JP 9900979 W JP9900979 W JP 9900979W WO 9943719 A1 WO9943719 A1 WO 9943719A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/14—Esterification
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/30—Chemical modification of a polymer leading to the formation or introduction of aliphatic or alicyclic unsaturated groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/40—Chemical modification of a polymer taking place solely at one end or both ends of the polymer backbone, i.e. not in the side or lateral chains
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
Definitions
- the present invention relates to a pinyl polymer having a (meth) acryloyl group at a terminal, a curable composition using the polymer, and a use thereof.
- Polymers having an alkenyl group at the terminal of the molecular chain can be used alone or by using a curing agent such as a hydrosilyl group-containing compound to give a cured product having excellent heat resistance and durability.
- a curing agent such as a hydrosilyl group-containing compound
- Examples of the main chain skeleton of such a polymer include polyether-based polymers such as polyethylene oxide-polypropylene oxide and polytetramethylene oxide; and polybutadiene, polyisoprene, polyglolobrene, polyisobutylene, and hydrogenated products thereof.
- Hydrocarbon polymers polyester polymers such as poly (ethylene terephthalate), polybutylene terephthalate, and polycaprolactone; polysiloxane polymers such as polydimethylsiloxane; and various applications depending on the characteristics of the main chain skeleton It is used for
- Vinyl-based polymers have properties that cannot be obtained with the above polymers, such as weather resistance, heat resistance, oil resistance, and transparency, and those having an alkenyl group in the side chain have weather resistance. Utilization as a paint has been proposed (for example, Japanese Patent Application Laid-Open No. 3-27764 / 1995 and Japanese Patent Application Laid-Open No. 7-73099).
- Japanese Patent Application Laid-Open No. H 1-224703 discloses an acrylic resin having an alkenyl group at both terminals by using dithiol force having an alkenyl group or diaryl disulfide as a chain transfer agent. A method for producing a polymer is disclosed.
- Japanese Patent Application Laid-Open No. Hei 6-219192 discloses an acrylic polymer having a hydroxyl group at a terminal by using a hydroxyl group-containing polysulfide or an alcohol compound as a chain transfer agent.
- a method for producing an acryl-based polymer having an alkenyl group at a terminal by producing a coalescence and further utilizing the reactivity of a hydroxyl group is disclosed.
- the molecular weight distribution (the ratio of the weight average molecular weight to the number average molecular weight) of the obtained polymer is generally as wide as 2 or more, and therefore, the viscosity is high. There was a problem.
- the viscosity is high, for example, when used as a sealing material / adhesive, there are problems such as difficulty in handling at the time of construction, and inability to mix a large amount of filler for reinforcement.
- curable rubber elastic compositions are widely used as adhesives, sealing materials, cushioning materials, and the like.
- curing means they use a so-called moisture-curable composition that is stable under sealing but is cured at room temperature by the action of moisture in the air to form a rubber elastic body, and a hydridylation reaction. And the heating causes a Tachibana reaction.
- VOCs volatile organic compounds
- water-based coatings latex particle agglomeration and film formation Volatile solvents are used to facilitate the process. This usually involves preparing a dispersed polymer or copolymer having a glass transition temperature (Tg) above room temperature and then plasticizing it with a volatile solvent to effectively lower its Tg. This is done by forming a film at room temperature. Evaporation of the solvent after film formation leaves a polymer that has been applied effectively below its actual Tg. In this case, external heating is not required to achieve film formation. This method works well, but is losing its versatility as VOC levels in coatings are controlled by strict global regulations.
- Tg glass transition temperature
- One method of overcoming this use of solvent is to crosslink the emulsion polymer after removing water.
- This bridge leads to an increase in the mechanical properties of the polymer film and, under appropriate conditions, can reduce the amount of solvent used for agglomeration and film formation.
- the options available for water-based coatings after water removal are limited.
- the compound having a radical polymerizable group can be mixed with a photoinitiator and then exposed to ultraviolet radiation to crosslink.
- the crosslinking also occurs after application in either the wet or dry state.
- the resulting films are useful as coatings, paints and sealants.
- Acrylic adhesives have well-balanced adhesive properties without the addition of tackifier resins, and are produced in large quantities alongside natural rubber adhesives.
- Acrylic pressure-sensitive adhesives have insufficient cohesion due to problems in molecular weight and molecular weight distribution.
- Various formats have been developed as the citrus method, for example, a method of adding a citrus compound such as a polyisocyanate compound, an epoxy compound, a polyvalent carboxylic acid, a polyamine compound, a phenol resin, and a thio compound. Proposed.
- the acrylic pressure-sensitive adhesive is generally based on a pressure-sensitive adhesive solution obtained by solution-polymerizing a vinyl-based monomer mainly composed of an acrylic monomer with an organic solvent, or an emulsion obtained by emulsifying and polymerizing with an aqueous system. It is obtained by applying or impregnating a material and drying it by heating.
- a photopolymerizable pressure-sensitive adhesive As a method for solving such a problem, a photopolymerizable pressure-sensitive adhesive has been proposed.
- a photopolymerizable composition a low molecular weight compound having a (meth) acryloyl group is often used.
- odor due to volatilization of low-boiling unreacted compounds has become a major problem.
- the composition in order to uniformly apply a composition mainly composed of a monomer to a substrate, the composition needs to have a certain degree of viscosity and needs to have a certain viscosity.
- oligomers with (meth) acryloyl groups are used.
- such oligomers are mainly limited to epoxy acrylates, urethane acrylates, polyester acrylates and the like due to synthesis problems, and there are few oligomers having a large molecular weight.
- Japanese Patent Application Laid-Open No. Hei 2-69081 discloses a method of thickening the composition by adding an acrylic rubber, a dichlorohydrin rubber or the like, but in this method, but in this method, However, since the added rubber component remains in the pressure-sensitive adhesive as a non-crosslinked material, a decrease in the performance of the pressure-sensitive adhesive is inevitable.
- the present invention provides a vinyl-based polymer having a (meth) acryloyl-based group at a molecular terminal in a small ratio, a curable composition using the same, a water-based emulsion, and an adhesive for use. It is an object of the present invention to provide a composition and an adhesive comprising the composition. Summary of the Invention
- the present invention provides a compound represented by the general formula (1):
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- the present invention is also a curable composition containing the polymer.
- the present invention is also an aqueous emulsion containing the polymer or the curable composition.
- the present invention also relates to a pressure-sensitive adhesive composition and a pressure-sensitive adhesive comprising the curable composition or the aqueous emulsion.
- the present invention provides a compound represented by the general formula (1):
- the number of groups represented by the general formula (1) is not particularly limited, but if the number is less than one per molecule, the curability is deteriorated.
- the number of groups represented by the above general formula (1) per molecule of the vinyl polymer of the present invention is not particularly limited, but is preferably 1.2 to 4 groups.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms. Preferably, it is hydrogen or a hydrocarbon group having 1 to 20 carbon atoms. Specifically, for example, -H, one CH 3 , —CH 2 CH 3 , one (CH 2 ) n CH 3 (n Represents an integer of 2 to 19), one C 6 H 5 , one CH 2 OH, —CN and the like, more preferably 1 H and one CH 3 .
- the main chain of the vinyl polymer of the present invention is preferably a (meth) acrylic polymer, and more preferably an acrylate ester polymer. Styrene polymers are also preferred.
- the monomer constituting the main chain of the vinyl polymer of the present invention is not particularly limited, and various monomers can be used.
- Styrene-based monomers such as styrene, vinyl toluene, ⁇ -methylstyrene, chlorostyrene, styrenesulfonic acid and salts thereof; fluorine-containing vinyl monomers such as perfluoroethylene, perfluoropropylene, and vinylidene fluoride : Gay-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, methyl male Bromide, E chill maleimide, propyl maleimide, butyl maleimide, the key Shirumareimi de, O Chi le maleimide, dodecyl maleimide, stearyl Murray Maleimide monomers such as medo, phenylmaleimide and cyclohexylmaleimide; vinyl monomers
- these preferable monomers may be copolymerized with other monomers, and in such a case, it is preferable that these preferable monomers are contained in a weight ratio of 40%.
- the vinyl polymer of the present invention has a molecular weight distribution, that is, a ratio of the weight average molecular weight to the number average molecular weight measured by gel permeation orifice chromatography is preferably less than 1.8, and more preferably 1.7. Or less, more preferably 1.6 or less, particularly preferably 1.5 or less, particularly preferably 1.4 or less, and most preferably 1.3 or less.
- a polystyrene gel column or the like is used as a mobile phase using chloroform or tetrahydrofuran or the like, and the value of the molecular weight is determined by a polystyrene conversion value or the like.
- the number average molecular weight of the vinyl polymer of the present invention is preferably in the range of 500 to 100,000, and more preferably 300 to 400. When the molecular weight is less than 500, the intrinsic characteristics of the vinyl polymer are hardly exhibited, and when it is more than 100, handling becomes difficult. Polymerization>
- the method for producing the vinyl polymer of the present invention is not particularly limited.
- a vinyl polymer is generally produced by anionic polymerization or radical polymerization.
- a living radical polymerization is used.
- it is preferably produced by radical polymerization using a chain transfer agent, and the former is particularly preferred.
- a azo compound, a peroxide or the like is used as a polymerization initiator, and a monomer having a specific functional group and a biel monomer are simply used.
- Copolymerization can be classified into “general radical polymerization method” and “controlled radical polymerization method” in which a specific functional group can be introduced at a controlled position such as at the terminal.
- the “general radical polymerization method” is a simple method, but in this method, a monomer having a specific functional group is introduced into the polymer only stochastically. In such a case, it is necessary to use a considerably large amount of this monomer. Conversely, if the monomer is used in a small amount, there is a problem that the proportion of the polymer into which the specific functional group is not introduced becomes large. In addition, since it is a free radical polymerization, there is also a problem that only a polymer having a wide molecular weight distribution and a high viscosity can be obtained.
- the “controlled radical polymerization method” further comprises obtaining a vinyl polymer having a functional group at a terminal by performing ⁇ polymerization using a chain transfer agent having a specific functional group. And a “living radical polymerization method” in which a polymer having a molecular weight substantially as designed can be obtained by growing the polymerized growth terminal without causing a termination reaction or the like.
- the “chain transfer agent method” can obtain a polymer having a high degree of functionalization, but requires a considerably large amount of a chain transfer agent having a specific functional group with respect to the initiator. There is an economic problem. Further, similar to the above-mentioned “general radical polymerization method”, 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 ⁇ living radical polymerization method '' has a high polymerization rate and is susceptible to a termination reaction due to coupling between radicals.
- a polymer having a narrow molecular weight distribution (MwZMn is about 1.1 to 1.5) can be obtained, and the molecular weight can be freely controlled by the charging ratio of the monomer and the initiator. Therefore, the “living radical polymerization method” is a polymer with a narrow molecular weight distribution and low viscosity. Can be obtained, and a monomer having a specific functional group can be introduced into almost any position of the polymer. Therefore, the method for producing the vinyl polymer of the present invention is more preferable.
- living polymerization refers to polymerization in which the terminal is always active and the molecular chain grows.In general, it is the polymerization in which the terminal is inactivated and the one in which the terminal is activated. Pseudo-living polymerization that grows in a state of equilibrium is also included. The definition in the present invention is also the latter.
- the “atom transfer radical polymerization method” in which an organic halide or a sulfonyl halide compound is used as an initiator and a vinyl monomer is polymerized using a transition metal as a catalyst is the above-mentioned "living radical polymerization method".
- the method of producing the vinyl polymer of the present invention has a large degree of freedom in designing initiators and catalysts, because it has halogens at the terminals that are relatively advantageous for the functional group conversion reaction. This is more preferred.
- the radical polymerization using the chain transfer agent is not particularly limited, but the following two methods for obtaining a vinyl polymer having a terminal structure derivable to the vinyl polymer of the present invention are as follows. Two methods are illustrated.
- Japanese Patent Application Laid-Open No. 4-132706 discloses a method for obtaining a halogen-terminated polymer by using a halogenated hydrocarbon as a chain transfer agent, and Japanese Patent Application Laid-Open Nos. 61-271306 and 2594402. This is a method of obtaining a hydroxyl-terminated polymer by using a hydroxyl group-containing mercaptan or a hydroxyl group-containing polysulfide as a chain transfer agent as disclosed in JP-A-54-47782.
- a radical scavenger such as a nitroxide compound
- Such compounds include, but are not limited to, 2,2,6,6-substituted 1-1-piperidinyloxy radicals, 2,2,5,5-substituted-11-pyrrolidinyloxy radicals, and the like.
- Nitroxyl free radicals from cyclic hydroxyamines are preferred.
- an alkyl group having 4 or less carbon atoms such as a methyl group and a methyl group is suitable.
- nitroxy free radical compound examples 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 1 year old Kiso 1-piperidinyloxy radical, 2,2,5,5-tetramethyl-1-pyrrolidinyloxy radical, 1, 1, 3, Examples include 3-tetramethyl-1-isoindolinyloxy radical, N, N-di-tert-butylamyloxy radical, and the like.
- a stable free radical such as galpinoxyl (ga 1 V in oxy 1) free radical may be used.
- the radical caving agent is used in combination with a radical generator. Radical key It is considered that the reaction product of the bing agent and the radical generator serves as a polymerization initiator to promote the polymerization of the addition-polymerizable monomer.
- the combination ratio of the two is not particularly limited, but 0.1 to 10 mol of the radical initiator per 1 mol of the radical cabbing agent is appropriate.
- the radical generator various compounds can be used, but a peroxide capable of generating a radical under polymerization temperature conditions is preferable.
- the peroxide include, but are not limited to, disilyl oxides such as benzoyl peroxide and lauroyl peroxide, dialkyl milperoxide, and dialkyl peroxide such as tert-butyl peroxide.
- Peroxides such as peroxides, diisopropylpropyl peroxydicarbonate, bis (4-tert-butylcyclohexyl) peroxydicarbonate, etc., t-butyl peroxy octoate, t-butyl peroxy benzoate, etc. Alkyl peresters and the like. Particularly, benzoyl peroxide is preferred.
- a radical generator such as a radical-generating azo compound such as azobisisobutyronitrile may be used in place of peroxide.
- an alkoxyamine compound When used as an initiator, if it has a functional group such as a hydroxyl group as shown in the above figure, a polymer having the functional group at the terminal can be obtained. From this polymer, the vinyl polymer of the present invention can be synthesized.
- Model used in polymerization using a radical scavenger such as the above nitroxide compound The polymerization conditions such as polymerization, solvent, and polymerization temperature are not limited, but may be the same as those used for the atom transfer radical polymerization described below.
- an organic halide particularly an organic halide having a highly reactive carbon-halogen bond (for example, a carbonyl compound having a halogen at the ⁇ -position or a compound having a halogen at the pendyl position) or a halogen A sulfonyl compound or the like is used as an initiator.
- an organic halide having a highly reactive carbon-halogen bond for example, a carbonyl compound having a halogen at the ⁇ -position or a compound having a halogen at the pendyl position
- a halogen A sulfonyl compound or the like is used as an initiator.
- R 3 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.
- an organic halide or a sulfonyl halide compound having a functional group other than the functional group that initiates the polymerization may be used as an initiator of the atom transfer radical polymerization.
- a functional group may be added to one main chain terminal.
- a vinyl polymer having a structure represented by the above general formula (2) at the other main chain terminal is produced. Examples of such a functional group include an alkenyl group, a citrus 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 (6).
- R 6 R 7 C (X) —R 8 — R 9 — C (R 5 ) CH ? (6) (Wherein, R 5 is hydrogen, or a methyl group, R 6, R 7 is hydrogen or a alkyl group, Ariru group of carbon number 1-20 or Ararukiru or those interconnected at the other end, R 8 Is a C ( ⁇ ) ⁇ one (ester group), —C (O) one (keto group), or o—, m—, p—phenylene group, and R 9 is a direct bond or has 1 to 20 divalent organic radicals which may contain one or more ether linkages, X being chlorine, bromine or iodine)
- R 6 and R 7 include hydrogen, methyl, ethyl, n-propyl, isopropyl, butyl, pentyl, and hexyl.
- R 6 and R 7 may be linked at the other end to form a cyclic skeleton.
- organic halide having an alkenyl group represented by the general formula (6) include:
- X is chlorine, bromine, or iodine
- n is an integer of 0 to 20
- XCH 2 C (O) 0 (CH 2 ) n ⁇ (CH 2 ) m CH CH 2 ,
- X is chlorine, bromine, or iodine
- n is an integer of 1 to 20
- m is an integer of 0 to 20
- X is chlorine, bromine, or iodine
- n is an integer of 1 to 20
- m is an integer of 0 to 20.
- Examples of the organic halide having an alkenyl group further include a compound represented by the general formula (7).
- H 2 C C (R 5 ) — R 9 -C (R 6 ) (X) -R 10 -R 7 (7) (where R 5 , R 6 , R 7 , R 9 and X are The same, R 10 represents a direct bond, one C (0) ⁇ — (ester group), one C (O) one (keto group), or o—, m—, p—phenylene group)
- R 8 is a direct bond or a divalent organic group having 1 to 20 carbon atoms (which may contain one or more ether bonds). If the bond is a direct bond, the halogen-bonded carbon Is a halogenated arylated compound. In this case, since the carbon-halogen bond is activated by the adjacent vinyl group, R 10 does not necessarily have to have a C (O) O group or a phenylene group, and may be a direct bond. When R 9 is not a direct bond, R 10 is preferably a C (O) O group, a C ( ⁇ ) group, or a phenylene group in order to activate a carbon-halogen bond.
- CH 2 CHCH 2 X
- CH 2 C (CH 3 ) CH 2 X
- CH 2 CHC (H) (X) CH (CH 3 ) 2 ,
- CH 2 CH (CH 2 ) a C (H) (X) one C0 2 R,
- CH 2 CH (CH 2 ) 2 C (H) (X) one C 6 H 5 ,
- X is chlorine, bromine, or iodine
- R is an alkyl group, aryl group, or aralkyl group having 1 to 20 carbon atoms.
- X is chlorine, bromine, or iodine
- n is an integer of 0 to 20.
- the organic halide having a crosslinkable silyl group is not particularly limited, and examples thereof include those having a structure represented by general formula (8).
- R 1 R i 2 is an alkyl group having 1 to 20 carbon atoms, an aryl group, an aralkyl group, or (R ′) 3 S i0- (R ′ is A monovalent hydrocarbon group having 1 to 20 carbon atoms, and three R's may be the same or different.)
- R 11 represents a triorganosiloxy group, When two or more 12 are present, 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 are the same.
- A represents 0, 1, 2, or 3 and b represents 0, 1, or 2.
- m is an integer of 0 to 19. However, a + mb ⁇ l
- X is chlorine, bromine, iodine, and n is an integer of 0 to 20
- XCH 2 C ( ⁇ ) O (CH 2 ) n O (CH 2 ) m S i (OCH 3 ) 3 is an integer of 0 to 20
- organic halide having a crosslinkable silyl group examples include those having a structure represented by the general formula (9).
- the organic halide having a hydroxyl group or the sulfonyl halide is not particularly limited, and examples thereof include the following.
- 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).
- the halide or the sulfonyl halide compound is not particularly limited, and examples thereof include the following.
- 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).
- the halide or the sulfonyl halide compound is not particularly limited, and examples thereof include the following.
- 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
- n is an integer of 1 to 20.
- R is an alkyl group having 1 to 20 carbon atoms, an aryl group, or an aralkyl group, and n is an integer of 0 to 20.
- X is chlorine, bromine, or iodine.
- n is an integer from 0 to 20 & X is 3 ⁇ 4, bromine, or iodine
- the vinyl monomer used in the atom transfer radical polymerization is not particularly limited, and any of those already exemplified can be suitably used.
- the transition metal used as a polymerization catalyst in atom transfer radical polymerization is particularly
- the metal complex is preferably, but not limited to, a metal complex complex having a central metal of Group 7, 8, 9, 10 or 11 of the periodic table. More preferable examples include zero-valent copper, monovalent copper, divalent ruthenium, divalent iron, and divalent nickel. Of these, copper is preferred. Specific examples of monovalent copper compounds include cuprous chloride, cuprous bromide, cuprous iodide, cuprous cyanide, cuprous oxide, cuprous perchlorate, and the like. is there.
- divalent bis triphenyl phosphine complex of iron F e C l 2 (PP 3) 2)
- 2 -valent bis triphenyl phosphine complex of nickel N i C 1 2 (PP h 3) 2)
- divalent piston-butyl phosphine complexes of nickel N i B r 2 (PB u 3) 2) are also suitable as catalysts.
- the polymerization can be carried out without solvent or in various solvents.
- the solvent include hydrocarbon solvents such as benzene and toluene, ether solvents such as getyl ether and tetrahydrofuran, halogenated hydrocarbon solvents such as methylene chloride and chloroform, acetone, methyl ethyl ketone, and the like.
- Ketone solvents such as methyl isobutyl ketone, alcohol solvents such as methanol, ethanol, propanol, isopropanol, n-butyl alcohol, tert-butyl alcohol, nitrile solvents such as acetonitrile, propionitrile, benzonitrile, and acetic acid
- ester solvents such as ethyl and ethyl acetate
- carbonate solvents such as ethylene carbonate and propylene carbonate.
- the polymerization can be carried out at room temperature to 200, preferably 50 to 150.
- the method for producing the vinyl polymer of the present invention by introducing the group represented by the general formula (1) into the terminal of the polymer obtained as described above is not particularly limited. Is mentioned.
- a method comprising reacting an olefin polymer having a terminal structure represented by the general formula (2) with a compound represented by the general formula (3).
- RR 2 is a group bonded to the ethylenically unsaturated group of the vinyl monomer.
- X represents chlorine, bromine, or iodine.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- M + represents an alkali metal or a quaternary ammonium ion.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- X represents chlorine, bromine, or a hydroxyl group.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- R ′ represents a divalent organic group having 2 to 20 carbon atoms.
- a method comprising reacting an olefin polymer having a terminal structure represented by the general formula (2) with a compound represented by the general formula (3). -CR 1 R 2 X (2)
- R 1 and R 2 are groups bonded to the ethylenically unsaturated group of the vinyl monomer.
- X represents chlorine, bromine, or iodine.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- M + represents an alkali metal or a quaternary ammonium ion.
- the vinyl polymer having a terminal structure represented by the general formula (2) is obtained by polymerizing a vinyl monomer using the above-mentioned organic halide or a sulfonyl halide compound as an initiator and a transition metal complex as a catalyst. Alternatively, it is produced by a method of polymerizing a vinyl monomer using a halogen compound as a chain transfer agent, and the former is preferred.
- RR 2 represents a group originally bonded to an ethylenically unsaturated group of a vinyl monomer which is a raw material of the vinyl polymer.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- it is hydrogen or a hydrocarbon group having 1 to 20 carbon atoms.
- M + is a counter cation of oxyanion.
- M + include metal ions such as lithium ion, sodium ion, potassium ion, and quaternary ammonium ion.
- the quaternary ammonium ions include tetramethylammonium ion, tetraethylammonium ion, tetrabenzoammonium ion, trimethyldodecylammonium ion, tetrabutylammonium ion, and dimethylbiveridium ion. .
- they are sodium ion and potassium ion.
- the amount of the oxyanion represented by the general formula (3) is preferably 1 to 5 equivalents, more preferably 1.0 to 1.2 equivalents, based on the halogen terminal of the general formula (2).
- the solvent for carrying out this reaction is not particularly limited, but a polar solvent is preferred because it is a nucleophilic substitution reaction.
- a polar solvent is preferred because it is a nucleophilic substitution reaction.
- tetrahydrofuran, dioxane, getyl Ether, acetone, dimethylsulfoxide, dimethylformamide, dimethylacetamide, hexamethylphosphoric triamide, acetonitrile and the like are used.
- the temperature at which the reaction is carried out is not limited, but is generally from 0 to 70, preferably at most 50 ", and more preferably at room temperature, in order to maintain a polymerizable terminal group.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- X represents chlorine, bromine, or a hydroxyl group.
- R represents a nitrogen atom or an organic group having 1 to 20 carbon atoms.
- it is hydrogen or a hydrocarbon group having 1 to 20 carbon atoms.
- a vinyl polymer having a hydroxyl group at the terminal is obtained by polymerizing a vinyl monomer using the above-mentioned organic halide or a sulfonyl halide compound as an initiator and a transition metal derivative as a catalyst, or by linking a compound having a hydroxyl group. It is produced by a method of polymerizing a vinyl monomer as a transfer agent, but the former is preferred.
- the method for producing the vinyl polymer having a hydroxyl group at a terminal by these methods is not limited, but the following methods are exemplified.
- H 2 C C (R 13 ) —R 14 -R 15 -OH (10)
- R 13 is an organic group having 1 to 20 carbon atoms, preferably hydrogen or methyl group, and They may be the same or different.
- 13 ⁇ 4 14 is - ⁇ (O) O- (ester group), or o-, represents a m- or p- phenylene group, also R 15 are have a direct bond, or one or more ether linkages It represents a divalent organic group having 1 to 20 carbon atoms. If R 14 is an ester group, it is a (meth) acrylate compound. If R 14 is a phenylene group, it is a styrene compound.
- reaction There is no restriction on the timing of the reaction of a compound having both a polymerizable alkenyl group and a hydroxyl group in one molecule.However, particularly when rubbery properties are expected, the reaction may be terminated at the end of the polymerization reaction or after the reaction of a predetermined monomer. It is preferred to react as a second monomer.
- the polymer has, as a second monomer, an alkenyl group and a hydroxyl group having low polymerizability in one molecule.
- a method of reacting a compound is not particularly limited, and examples thereof include a compound represented by the general formula (11).
- R 13 is the same as described above.
- R 16 represents a divalent organic group having 1 to 20 carbon atoms which may contain one or more ether bonds.
- the compound represented by the above general formula (11) is not particularly limited, but is preferably an alkenyl alcohol such as 10-indesenol, 5-hexenol, or aryl alcohol, because it is easily available.
- (c) Vinyl having at least one carbon-halogen bond represented by the general formula (2) obtained by atom transfer radical polymerization by a method as disclosed in JP-A-4-132706 and the like. A method of introducing a hydroxyl group into a terminal by hydrolyzing or reacting a halogen of a polymer with a hydroxyl group-containing compound.
- R 17 and R 18 are both electron withdrawing groups for stabilizing carpanion C—, or one is the above electron withdrawing group and the other is hydrogen or carbon number. Represents an alkyl group or a phenyl group of 1 to 10. Examples of electron-withdrawing groups of R 17 and R 18 include —C ⁇ 2 R (ester group), one C (O) R (keto group), and one CON ( R 2 ) (amide group), one COSR (thioester group), one CN (nitrile group), —NO 2 (nitro group), etc.
- the substituent R is an alkyl group having 1 to 20 carbon atoms
- 6 is a Ariru group or Araru kill group with carbon number 7 to 20 of 20, preferably Ru alkyl group or phenyl group der of 1-10 carbon atoms as the R 17 and R 18, one C0 2 R,. - C ( ⁇ ) R and 1 CN are particularly preferred.
- a vinyl polymer having at least one carbon-18 halogen bond represented by the general formula (2) obtained by atom transfer radical polymerization is reacted with a simple metal such as zinc or an organometallic compound.
- a simple metal such as zinc or an organometallic compound.
- the method (b) when the halogen is not directly involved in the method for introducing a hydroxyl group as in (a) and (b), the method (b) is more preferable because the control is easier.
- a hydroxyl group is introduced by converting a halogen of a vinyl polymer having at least one carbon-halogen bond as in (c) to (f), it is easier to control (f) ) Is more preferred.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms.
- R ′ represents a divalent organic group having 2 to 20 carbon atoms.
- the compound represented by the general formula (5) is not particularly limited, but a specific compound is, for example, 1-2-hydroxypropyl methacrylate.
- R represents hydrogen or an organic group having 1 to 20 carbon atoms. Preferably, it is hydrogen or a hydrocarbon group having 1 to 20 carbon atoms. Specifically, for example, one H, —CH 3 , one CH 2 CH 3 , — (CH 2 ) n CH 3 (n Represents an integer of 2 to 19), one C 6 H 5 , —CH 2 OH, one CN and the like, and more preferably —H and one CH 3 .
- the vinyl polymer having a hydroxyl group at the terminal is the same as described above.
- the diiwasinate compound is not particularly limited, and any conventionally known compounds can be used.
- a diisocyanate compound having no aromatic ring such as hexamethylene diisocyanate, hydrogenated diphenylmethane diisocyanate, for example, as the diisocyanate compound.
- the vinyl polymer of the present invention can be made into a curable composition containing it. ⁇ Monomer Z oligomer>
- the curable composition of the present invention is not limited, it is preferable that the vinyl polymer of the present invention is a main component, and that the curable composition does not contain other polymerizable monomers in order to eliminate odor problems due to residual monomers.
- a polymerizable monomer and / or an oligomer or various additives may be used in combination.
- a monomer and / or oligomer having a radical polymerizable group or a monomer and / or oligomer having an anion polymerizable group is preferable.
- radical polymerizable group examples include an acrylic functional group such as a (meth) acrylic group, a styrene group, an acrylonitrile group, a vinyl ester group, a vinylpyrrolidone group, an acrylamide group, a conjugated gen group, a vinyl ketone group, and a vinyl chloride group. And the like. Among them, those having a (meth) acryl group similar to the polymer of the present invention are preferable.
- anion-polymerizable group examples include a (meth) acrylic group, a styrene group, a ⁇ loritolitol group, a ⁇ -pinylpyrrolidone group, an acrylamide group, a conjugated diene group, and a vinyl ketone group. Those having an acrylic functional group similar to the polymer are preferred.
- the monomers having the above groups include (meth) acrylate monomers, cyclic acrylates, ⁇ ⁇ ⁇ -vinylpyrrolidone, styrene-based monomers, acrylonitrile, ⁇ -vinylpyrrolidone, acrylamide-based monomers, conjugated gen-based monomers, and vinyl ketones. And the like.
- (Meth) acrylate monomers include ⁇ -butyl (meth) acrylate, 1,2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, and isononyl (meth) acrylate. And the like.
- H 2 C C— C-OCH 2 CH 2 — C 8 H 17
- Styrene-based monomers include styrene, ⁇ -methylstyrene, etc.
- acrylamide-based monomers include acrylamide, ⁇ , ⁇ ⁇ ⁇ ⁇ -dimethylacrylamide, etc.
- conjugated-gen-based monomers include butadiene and isoprene
- pinylketone-based monomers include methylbiphenyl. Diketone and the like.
- Monomers having a plurality of the above groups include neopentyl glycol polypropoxy diacrylate, trimethylolpropane polyethoxy diacrylate, bisphenol F polyethoxy diacrylate, bisphenol polyethoxy diacrylate, dipentaerythr Polyhexanolide hexacrylate, tris (Hydoxethyl) isocyanurate polyhexanolide triacrylate, tricyclodecane dimethylol diacrylate 2- (2-acryloyloxy 1, 1-dimethyl) — 5-ethyl-5- Acryloyloxymethyl-1,3-dioxane, tetrabromobisphenol A diethoxydiacrylate, 4,4 dimercaptodiphenylsulfide dimethacrylate, polytetraethylene glycol diacrylate Relay Bok, 1, 9 Nonanjio one Rujiakurireto include ditrimethylol bromide pan tetra ⁇ chestnut rates.
- oligomers having the above groups include epoxy acrylate resins such as bisphenol A type epoxy acrylate resin, phenol novolak type epoxy acrylate resin, and cresol novolac type epoxy acrylate resin. , COOH group-modified epoxy acrylate resin, polyol (polytetramethylene glycol, polyester diol of ethylene glycol and adipic acid, ⁇ -force prolactone modified polyester diol, polypropylene glycol, polyethylene glycol , Polycarbonate diol, hydroxyl-terminated hydrogenated polyisoprene, hydroxyl-terminated polybutadiene, hydroxyl-terminated polyisobutylene, etc.) and organic isocyanates (tolylene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, hexamethylene) (Meth) acrylates (hydroxyethyl (meth) acrylates, hydroxypropyl (meth) acrylates, hydroxyprop
- Urethane acrylate resin obtained by reacting erythritol triatalylate, etc., a resin in which a (meth) acrylic group is introduced into the above polyol through an ester bond, a polyester acrylate Tree butter, and the like can be mentioned.
- the number average molecular weight of the monomer and the Z or oligomer having an acrylic functional group is preferably 2000 or less, and 100 or less is preferred because compatibility is good. More preferred.
- the curable composition of the present invention is preferably cured by an active energy ray such as a UV or an electron beam.
- the active energy ray-curable composition of the present invention preferably contains a photopolymerization initiator.
- the photopolymerization initiator used in the present invention is not particularly limited, but a photoradical initiator and a photoanion initiator are preferable, and a photoradical initiator is particularly preferable.
- initiators may be used alone or in combination with other compounds. Specifically, a combination with an amine such as diethanolmethylamine, dimethylethanolamine, and triethanolamine, a combination thereof with an iodonium salt such as diphenyldonium chloride, a dye such as methylene blue, and the like. And a combination of the amino acids.
- an amine such as diethanolmethylamine, dimethylethanolamine, and triethanolamine
- an iodonium salt such as diphenyldonium chloride
- a dye such as methylene blue, and the like.
- a near-infrared light absorbing cationic dye may be used as the near-infrared light polymerization initiator.
- the near-infrared light-absorbing cationic dye is excited by light energy in the range of 65 to 150 nm, for example, as described in JP-A-3-111402 and JP-A-5-194. It is preferable to use a near-infrared light-absorbing cation dye monoporate anion complex or the like disclosed in, for example, US Pat. No. 6,191, and more preferably to use a boron sensitizer in combination.
- the amount of the photopolymerization initiator to be added is not particularly limited since only a slight photofunctionalization of the system is required. Department is preferred.
- the method for curing the active energy ray-curable composition of the present invention is not particularly limited, but depending on the properties of the photopolymerization initiator, a high-pressure mercury lamp, a low-pressure mercury lamp, an electron beam irradiation device, a halogen lamp, a light-emitting diode, Light and electron beam irradiation by a semiconductor laser or the like may be used.
- Specific applications of the active energy ray-curable composition of the present invention include sealing materials, adhesives, pressure-sensitive adhesives, elastic adhesives, paints, powder paints, foams, potting materials for electric and electronic devices, films, Examples include gaskets, resists, various molding materials, stereolithography, and artificial marble.
- the curable composition of the present invention is preferably cured by heat.
- the thermosetting composition of the present invention preferably contains a thermopolymerization initiator.
- the thermal polymerization initiator used in the present invention is not particularly limited, and includes an azo initiator, a peroxide, a persulfate, and a redox initiator.
- Suitable azo initiators include, but are not limited to, 2,2 'monoazobis (4-methoxy-2,4-dimethylvaleronitrile) (VAZO 33), 2, 2'-azobis (2- Amidinopropane) dihydrochloride (VAZO 50), 2,2'-azobis (2.4-dimethylvaleronitrile) (VAZO 52), 2,2'-azobis (isobutyronitrile) (VAZO 64), 2, 2 '— Azobis—2-methylbutyronitrile (VAZO 67), 1,1-azobis (1-cyclohexanecarbonitrile) (VAZO 88) (all available from DuPont Chemica 1), 2, 2'-azobis (2-cyclopropylpropionitrile), and 2,2′-azobis (methylisobutyrate) (V-601) (available from Wako Pure Chemical Industries, Ltd.).
- Suitable peroxide initiators include, but are not limited to, benzoyl peroxide, acetyl peroxide, lauroyl peroxide, decanoyl peroxide, diseterperoxydicarbonate, di (4-t-butylcyclohexyl) Peroxy dicarbonate (Perk ad ox 16 S) (available from Akzo Nobel), di (2-ethylhexyl) peroxy dicarbonate, t-butyl peroxypiva Rate (Lupersol 1 1) (available from Elf A tochem), t-butyl peroxy-1-ethyl hexanoate (T rigonox 21—C 50) (available from Akzo No be 1), and peroxidation Dicumyl and the like.
- Suitable persulfate initiators include, but are not limited to, potassium persulfate, sodium persulfate, and ammonium persulfate.
- Suitable redox (redox) initiators include, but are not limited to, combinations of the above persulfate initiators with reducing agents such as sodium metabisulfite and sodium bisulfite; Systems based on tertiary amines, such as those based on benzoyl peroxide and dimethylaniline; and systems based on organic hydrobaroxides and transition metals, such as cumene hydroperoxide and cobalt naphthate And other systems based on
- initiators include, but are not limited to, pinacols such as tetraphenyl 1,1,2,2 ethanediol.
- Preferred thermal polymerization initiators are selected from the group consisting of azo initiators and peroxide initiators. Even more preferred are 2,2′-azobis (methylisobutyrate), t-butylpropyloxybivalate, and di (4-t-butylcyclohexyl) peroxydicarbonate, and mixtures thereof.
- the thermal polymerization initiator used in the present invention is present in a catalytically effective amount, and such amounts are not limited, but typically include the polymers of the present invention and other monomers and monomers added.
- the total amount of the oligomer mixture is 100 parts by weight, it is about 0.01 to 5 parts by weight, more preferably about 0.025 to 2 parts by weight. If a mixture of initiators is used, the total amount of the mixture of initiators is as if only one initiator was used.
- the method of curing the thermosetting composition of the present invention is not particularly limited, and the temperature varies depending on the type of the thermal polymer initiator used, the polymer of the present invention, the compound to be added, and the like. Is preferably within a range of up to 250, and more preferably within a range of 7O: up to 200.
- the curing time varies depending on the used polymerization initiator, monomer, solvent, reaction temperature and the like, but is usually in the range of 1 minute to 10 hours.
- thermosetting composition of the present invention includes sealing materials, adhesives, pressure-sensitive adhesives, elastic adhesives, paints, powder coatings, foams, potting materials for electric and electronic devices, films, gaskets, and resists. And various molding materials and artificial marble.
- sealing materials adhesives, pressure-sensitive adhesives, elastic adhesives, paints, powder coatings, foams, potting materials for electric and electronic devices, films, gaskets, and resists.
- various molding materials and artificial marble Water-based emulsion>
- the vinyl polymer and the curable composition of the present invention can be made into an aqueous emulsion.
- the polymer having at least one (meth) acryloyl group at the terminal of the present invention is dispersed in an aqueous phase to form an aqueous emulsion (latex).
- aqueous emulsion (latex)
- conventional nonionic, cationic or anionic surfactants or mixtures thereof
- this mixture is then emulsified in water by mixing with high shear in a homogenizer or Sonolator®.
- it is prepared by first mixing the polymer of the present invention with water and a surfactant, and then subjecting the mixture to high shear.
- the emulsion may then be intimately mixed with other emulsified components as desired for a particular application.
- the surfactant used in the present invention is not particularly limited, and any conventional anionic and cationic surfactants, and mixtures thereof can be used. Such surfactants are well known in the art and are described in further detail in "Synthetic Detergents" by JW McCutcheon, published by MacNir-Dorl and Company, New York. ing.
- surfactants include alkali metal salts and ammonium salts of long chain alcohols of sulfuric or sulfonic acids, and also alkylene oxide condensates such as long chain alcohols and fatty acids.
- Anionic surfactants are preferred and are aqueous solutions of alkylaryl polyether sodium sulfonates (TRITON) X-200 (This is a Union Carbide Co.). rporation, available from Danbury, CT) are more preferred.
- the amount of the surfactant used is not limited, but ranges from 0.25 to 7 parts by weight based on 100 parts by weight of the polymer.
- aqueous emulsions can be coated on a variety of substrates and then cured by exposure to heat, visible light or ultraviolet light, and the like.
- an appropriate initiator is added, and the initiator is preferably a photopolymerization initiator or a thermal polymerization initiator.
- the photoinitiator must also be compatible with the dispersed phase in the emulsion.
- the photoinitiator is used in an amount sufficient to achieve the desired cure rate. If too little is used, a longer than desired curing time is required. If too much photoinitiator is used, The physical and mechanical properties of the water emulsion or dried emulsion deteriorate. Preferred amounts are from 0.25 to 0.5 part of photoinitiator per 100 parts by weight of polymer.
- the photoinitiator reacts in the presence of ultraviolet light to generate radicals which cause a reaction between the (meth) acryloyl-based groups on the polymer.
- radicals generated by ultraviolet light and a photoinitiator produce (meth) acryloyl-based groups, which react with each other to form a bridge.
- These cross-linking reactions proceed in both aqueous emulsions and dried emulsions.
- the water is first separated from the emulsion, and then the dried emulsion is exposed to ultraviolet light to cause crosslinking.
- Emulsion containing an acryloxypropylene group is crosslinked by exposure to the surrounding sunlight because these functional groups are very reactive.
- Additional ingredients can be added to the dried emulsion to change the properties of the emulsion.
- the physical properties of the dried emulsion are further enhanced by the addition of reinforcing fillers.
- Reinforcing fillers such as silica and bonbon black are suitable.
- Increasing fillers such as clay and calcium carbonate; pigments; dyes; thickeners and the like can be added as long as they do not adversely affect the properties or the storage stability of the emulsions in hydrated or dry form according to the invention.
- the method for curing the aqueous emulsion of the present invention is not particularly limited, and the method described for the active energy ray-curable composition and the thermosetting composition can be used.
- the amount of ultraviolet radiation required for the emulsion polymers of the present invention to vary depends on a number of variable factors, and therefore the optimum amount should be determined experimentally. Factors such as the wavelength of UV light, the amount and type of (meth) acryloyl-based groups on the polymer, the amount and type of photoinitiator, and also the design of the reactor, are all factors that are required for the emulsion polymer to be incorporated into the emulsion. Affects the amount of UV radiation.
- the aqueous emulsions according to the invention are used in surface coating compositions by curing as described above. Dry emulsions are suitable as coating materials, adhesives or sealants. Such a coating imparts waterproofing properties to the substrate.
- Typical substrates for such coatings are metals, such as aluminum, steel, iron and diamond, masonry, such as concrete, marble and stone, cellulosic materials, such as paper, cotton, Includes fiberboard, cardboard, wood, woven or nonwoven, and plastics, eg, polycarbonate.
- the properties of the cured product of the emulsion of the present invention can be varied from rubbery to resinous, depending on the molecular weight of the polymer and the main chain skeleton. Accordingly, specific applications of the curable composition of the present invention include sealing materials, adhesives, adhesives, elastic adhesives, paints, powder paints, foams, electric and electronic potting materials, films. , Gaskets, resists, various molding materials, artificial marble and the like.
- the curable composition and the aqueous emulsion of the present invention can be used as a pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive composition of the present invention preferably contains a (meth) acrylic polymer as a main component, it is not always necessary to add a tackifier resin.
- a tackifier resin can be used. Specific examples include phenol resin, modified phenol resin, cyclopentadiene phenol resin, xylene resin, coumarone resin, petroleum resin, terpene resin, terpene phenol resin, and rosin ester resin.
- the pressure-sensitive adhesive composition of the present invention may be blended with various additives, for example, an antioxidant, a plasticizer, a physical property modifier, a solvent, and the like, for adjusting physical properties.
- additives for example, an antioxidant, a plasticizer, a physical property modifier, a solvent, and the like, for adjusting physical properties.
- the (meth) acrylic polymer is originally a polymer having excellent durability, an antioxidant is not always necessary, but conventionally known antioxidants and ultraviolet absorbers can be appropriately used.
- plasticizer examples include phthalic acid esters such as dibutyl phthalate, diheptyl phthalate, di (2-ethylhexyl) phthalate, and butyl penzyl phthalate; for the purpose of adjusting physical properties and controlling properties; dioctyl adipate, dioctyl sebacate; Non-aromatic dibasic acid esters such as triethyl glycol dibenzoate and triethylene glycol dibenzoate; esters of polyalkylene glycol; phosphates such as tricresyl phosphate and tributyl phosphate; paraffin chloride Classes: Hydrogenated oils such as alkyldiphenyl and partially hydrogenated terphenyl can be used alone or in combination of two or more, but they are not necessarily required. These plasticizers can be added at the time of polymer production.
- phthalic acid esters such as dibutyl phthalate, diheptyl phthalate, di (2-ethyl
- the solvent examples include aromatic hydrocarbon solvents such as toluene and xylene, ester solvents such as ethyl acetate, butyl acetate, amyl acetate and cellosolve, ketones such as methyl ethyl ketone, methyl isobutyl ketone, and diisobutyl ketone. And the like. These solvents may be used during the production of the polymer.
- various adhesion improvers may be added in order to improve the adhesion to various supports (plastic film, paper, etc.).
- alkylalkoxy silanes such as methyltrimethoxysilane, dimethyldimethoxysilane, trimethylmethoxysilane, n-propyltrimethoxysilane; dimethyldiisopropoxyoxysilane, methyltriisopropoxyoxysilane, aglycidoxypropyl Alkyl isoproponoxysilanes such as methyldiisoproponoxysilane, aglycidoxypropylmethyldimethoxysilane, aglycidoxypropyltrimethoxysilane, vinyltrimethoxysilane, vinyldimethylmethoxysilane, and Methoxysilane, N- (0-aminoethyl) monoaminopropyl trimethoxysilane, N- (0-aminoethyl) monoaminoprop
- the pressure-sensitive adhesive composition of the present invention can be widely applied to tapes, sheets, lapels, foils and the like.
- base materials such as films, paper, all kinds of cloth, metal foil, metallized plastic foil, asbestos or glass fiber cloth made of synthetic resin or denatured natural products, such as solvent type, emulsion type or hot melt type
- the adhesive composition in the form What is necessary is just to apply an object and to cure it with active energy rays or heat.
- “number average molecular weight” and “molecular weight distribution (ratio of weight average molecular weight to number average molecular weight) j were calculated by a standard polystyrene conversion method using gel permeation chromatography (GPC). However, a GPC column filled with polystyrene tanachi gel (shode X GPC K-804; manufactured by Showa Dye Co., Ltd.) was used, and Guroguchi Form was used as a GPC solvent.
- average number of terminal (meth) acryloyl groups is “number of (meth) acryloyl groups introduced per molecule of polymer” and was calculated from the number average molecular weight obtained by NMR analysis and GPC. .
- the flask was charged with methanol (800 mL) and cooled to 0 "C. To this was added potassium t-butoxide (130 g) in several portions. The reaction solution was kept at 0 and methacrylic acid was added. (100 g) of methanol was added dropwise, and after completion of the addition, the temperature of the reaction solution was returned to room temperature from 0, and then the volatile components of the reaction solution were distilled off under reduced pressure to obtain potassium methacrylate (hereinafter referred to as the following formula) And the compound (1) were obtained.
- Polymer [1] 20.08 was dissolved in 1 ⁇ , N-dimethylacetoamide, 1.46 g of compound (1) was added, and the mixture was stirred at room temperature for 2 days.
- the reaction mixture was diluted with ethyl acetate (50 mL), and the insoluble portion was filtered.
- the solution was further diluted with ethyl acetate (150 mL) and washed with water and brine.
- the organic layer was dried over Na 2 SO 4 , and volatile matter was distilled off under reduced pressure to obtain methacryloyl group-terminated poly (butyl acrylate) (hereinafter referred to as polymer [2]).
- the average number of terminal methacryloyl groups in the polymer [2] after purification was 1.52.
- a part of the composition obtained in this way is applied on a glass plate, and a high-pressure mercury lamp
- the polymer [2] was applied on a glass plate, and irradiated with light using a high-pressure mercury lamp at an irradiation distance of 5 Ocm for 20 minutes, but did not cure.
- a part of the composition thus obtained is applied on a glass plate, and irradiated with a high-pressure mercury lamp (SHL-10 OUVQ-2; manufactured by Toshiba Lighting & Technology Corporation) at an irradiation distance of 50 cm for 20 minutes. Irradiated with light, but did not cure.
- a high-pressure mercury lamp SHL-10 OUVQ-2; manufactured by Toshiba Lighting & Technology Corporation
- N-Butyl acrylate is polymerized by using cuprous bromide as a catalyst, benzylmethylethylentriamine as a ligand, and getyl-2,5-dibromoadipate as an initiator to obtain a number average molecular weight of 10800 and a molecular weight distribution of 1.15.
- a terminal brominated poly (n-butyl acrylate) was obtained.
- the average number of terminal acryloyl groups in the purified polymer [3] was 2.0.
- the polymer [3] and jetoxyacetophenone were mixed well in the ratio shown in Table 1. After filling these compositions in a mold, defoaming and defoaming, the surface was covered with a glass plate to prepare a sample. When these samples were irradiated with light from a high-pressure mercury lamp (SHL-100UVQ-2; manufactured by Toshiba Lighting & Technology Corp.) for the irradiation time shown in Table 1, a rubber-like cured product was obtained. However, the distance between the high-pressure mercury lamp and the sample was set to 20 cm.
- SHL-100UVQ-2 manufactured by Toshiba Lighting & Technology Corp.
- the gel fraction of the obtained cured product was measured. However, the gel fraction was determined from the weight ratio of the cured product before and after extraction of the uncured portion of the cured product. Extraction of the uncured portion was performed by immersing the cured product in toluene. The results are shown in Table 1.
- Table 2 shows the polymer [3] and the organic peroxide perhexa 3 M (1,1-DG (t-butylpoxy) -1,3,3,5-trimethylcyclohexane: manufactured by NOF Corporation). Were mixed well in the ratios shown in Table 1. These compositions are filled into a mold and defoamed. After heating at 150 for 5 minutes, a rubber-like cured product was obtained.
- the obtained cured product was measured for gel fraction and subjected to a tensile test.
- the gel fraction was determined by the weight ratio of the cured product before and after extraction of the uncured portion of the cured product. Extraction of the uncured portion was performed by immersing the cured product in toluene.
- the tensile test was performed by punching out a No. 2 (1/3) dumbbell specimen from the sheet-shaped cured product and using an autograph manufactured by Shimadzu (measurement conditions: 23, 20 OmmZmin). Table 2 also shows the results of the tensile test. Table 2
- the pressure-sensitive adhesive composition thus obtained is applied to a 50 m thick corona-treated polyethylene terephthalate film (manufactured by Toray Industries, Inc.) so that the thickness after drying is about 40 m. After drying under reduced pressure at room temperature, light irradiation was performed for 10 minutes using a high-pressure mercury lamp (SHL-100UVQ-2; manufactured by Toshiba Lighting & Technology Corporation) under a nitrogen atmosphere to cure.
- the adhesive strength of the obtained adhesive tape was measured according to the following method in accordance with JISZ-0237.
- the obtained adhesive tape was cut to a width of 25 mm, and the adhesive surface was pressure-bonded to a stainless steel mesh plate (SUS # 304) whose surface was previously polished with a # 240 water-resistant abrasive paper to prepare a test piece. After the test specimen was left for 30 minutes, it was peeled 180 degrees by a tensile tester at a peeling speed of 30 Omm / min under conditions of 23 and 65 RH, and the adhesive strength was measured to be 8.3 N / 25 mm.
- the pressure-sensitive adhesive composition thus obtained is treated with a corona-treated polyethylene terephthalate film having a thickness of 50 / xm so that the thickness after drying becomes about 40 m (manufactured by Toray Industries, Inc.). After drying under reduced pressure at room temperature, the mixture was cured by heating at 150 under a nitrogen atmosphere for 10 minutes.
- the adhesive strength of the obtained adhesive tape was measured in accordance with JISZ-0237 according to the following method.
- the obtained adhesive tape was cut into a width of 25 mm, and the adhesive surface was pressure-bonded to a stainless steel mesh plate (SUS # 304), the surface of which was previously polished with a # 240 water-resistant abrasive paper to prepare a specimen.
- the test specimen was left for 30 minutes, and then peeled 180 ° at a peeling speed of 300 mm / min under the conditions of 65 RH at 23 with a tensile tester, and the adhesive strength was measured to be 19.7 N / 25 mm. .
- emulsion [1] 100 parts of the polymer [3], 1 part of diethoxyacetophenone, 100 parts of deionized water and 1 part of sodium dodecyl sulfate are mixed well, and an emulsion is obtained using a homogenizer (hereinafter referred to as emulsion [1]).
- emulsion [1] a homogenizer
- Example 17 Thoroughly mix 100 parts of polymer [3], 1 part of jetoxyacetophenone, 100 parts of deionized water, and 3 parts of nonionic surfactant (Nonion NS-210; manufactured by NOF CORPORATION), and use a homogenizer. An emulsion (hereinafter referred to as emulsion [2]) was obtained.
- Polymer [3] 100 parts, organic peroxide perhexa 3M (1,1-di- (t-butylcarboxy) -3,3,5-trimethylcyclohexane; Nippon Yushi Co., Ltd.) 1 , 100 parts of deionized water and 1 part of sodium dodecyl sulfate were mixed well, and an emulsified liquid (hereinafter referred to as emulsion [3]) was obtained using a homogenizer.
- Polymer [3] 100 parts, organic peroxide perhexa 3M (1, 1-G (t-rubbilba 1-year-old) 1,3,3,5-trimethylcyclohexane: Nippon fSlg Co., Ltd.) 1 part, 100 parts of deionized water, and 3 parts of nonionic surfactant (Nonion NS-210: manufactured by NOF Corporation) are mixed well, and the emulsified liquid (hereafter referred to as emulsion [4]) is mixed using a homogenizer. Obtained.
- Emulsion [1] is applied to a polyethylene terephthalate film, dried by heating at 120 ° C for 1 hour, and then covered with a polyethylene terephthalate film.
- a low-pressure mercury lamp (SHL-100UVQ-2; manufactured by Toshiba Lighting & Technology Corporation) As a result of light irradiation for 5 minutes at an irradiation distance of 20 cm using, it was cured (Example 21).
- Example 20 The procedure of Example 20 was repeated, except that emulsion [2] was used instead of emulsion [1]. As a result, the composition was cured.
- Example 22 (Thermal curing of emulsion) Apply emulsion 3 to polyethylene terephthalate film,
- Example 22 The procedure of Example 22 was repeated, except that emulsion [4] was used instead of emulsion [3]. Industrial applicability
- a (meth) acryloyl group having polymerization activity is introduced at the terminal at a small ratio. It can be suitably used. Further, since it is preferably produced by atom transfer radical polymerization, it has a feature that the introduction rate of the functional group at the terminal is high and the molecular weight distribution is narrow.
- the curable composition using this polymer can be preferably cured by an active energy ray or heat, and has a high weather resistance and a functional group because the main chain of the polymer is a vinyl polymer. Since it is introduced at the molecular end, characteristics such as rubber elasticity can be exhibited.
- the water-based emulsion of the present invention contains a vinyl polymer having a polymerizable (meth) acryloyl-based group introduced at a high ratio at the terminal, so that it can be cured by thermal Z light and can be used as a coating agent. It can be suitably used.
- this cured product has high weather resistance because the main chain of the polymer is a vinyl polymer, and can exhibit properties such as rubber elasticity because the functional group is introduced at the terminal of the main chain.
- the polymer of the present invention is preferably produced by living radical polymerization, particularly preferably by atom transfer radical polymerization, the above-mentioned physical properties can be variously controlled.
- the pressure-sensitive adhesive composition of the present invention has a low viscosity because the molecular weight distribution of a vinyl polymer having a (meth) acryloyl-based group as a main component is narrow, and can be made into a high solid.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69933544T DE69933544T2 (de) | 1998-02-27 | 1999-03-01 | Polymer und härtbare zusammensetzung |
US09/622,931 US6964999B1 (en) | 1998-02-27 | 1999-03-01 | Polymer and curable composition |
EP99906542A EP1059308B1 (en) | 1998-02-27 | 1999-03-01 | Polymer and curable composition |
CA002321784A CA2321784A1 (en) | 1998-02-27 | 1999-03-01 | Polymer and curable composition |
Applications Claiming Priority (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/47304 | 1998-02-27 | ||
JP4730498 | 1998-02-27 | ||
JP10/172958 | 1998-06-19 | ||
JP17295898 | 1998-06-19 | ||
JP10/207324 | 1998-07-23 | ||
JP20732498 | 1998-07-23 | ||
JP10/242101 | 1998-08-27 | ||
JP24210298 | 1998-08-27 | ||
JP24210198 | 1998-08-27 | ||
JP10/242102 | 1998-08-27 | ||
JP29267398 | 1998-10-15 | ||
JP10/292673 | 1998-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999043719A1 true WO1999043719A1 (fr) | 1999-09-02 |
Family
ID=27550260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/000979 WO1999043719A1 (fr) | 1998-02-27 | 1999-03-01 | Polymere et composition solidifiable |
Country Status (6)
Country | Link |
---|---|
US (1) | US6964999B1 (ja) |
EP (1) | EP1059308B1 (ja) |
CN (2) | CN1152061C (ja) |
CA (1) | CA2321784A1 (ja) |
DE (1) | DE69933544T2 (ja) |
WO (1) | WO1999043719A1 (ja) |
Cited By (4)
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WO2000015683A1 (fr) * | 1998-09-14 | 2000-03-23 | Kaneka Corporation | Compositions durcissables |
US6936656B2 (en) | 2000-01-11 | 2005-08-30 | Ciba Specialty Chemicals Corporation | Comb polymers from ATRP macromonomers |
WO2004058830A1 (ja) * | 2002-12-24 | 2004-07-15 | Kaneka Corporation | 末端に重合性炭素−炭素二重結合を持つ基を有するビニル系重合体の製造方法 |
CN100443510C (zh) * | 2002-12-24 | 2008-12-17 | 株式会社钟化 | 末端具有含聚合性碳-碳双键的基团的乙烯基类聚合物的制造方法 |
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Also Published As
Publication number | Publication date |
---|---|
DE69933544T2 (de) | 2007-02-08 |
DE69933544D1 (de) | 2006-11-23 |
CN1535988A (zh) | 2004-10-13 |
US6964999B1 (en) | 2005-11-15 |
EP1059308A4 (en) | 2003-05-21 |
CA2321784A1 (en) | 1999-09-02 |
CN1263776C (zh) | 2006-07-12 |
EP1059308A1 (en) | 2000-12-13 |
CN1291997A (zh) | 2001-04-18 |
CN1152061C (zh) | 2004-06-02 |
EP1059308B1 (en) | 2006-10-11 |
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