WO2005012426A1 - 硬化性組成物及び硬化性組成物の製造方法 - Google Patents
硬化性組成物及び硬化性組成物の製造方法 Download PDFInfo
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- WO2005012426A1 WO2005012426A1 PCT/JP2004/010909 JP2004010909W WO2005012426A1 WO 2005012426 A1 WO2005012426 A1 WO 2005012426A1 JP 2004010909 W JP2004010909 W JP 2004010909W WO 2005012426 A1 WO2005012426 A1 WO 2005012426A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions 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; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L43/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Compositions of derivatives of such polymers
- C08L43/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/943—Polymerization with metallocene catalysts
Definitions
- Curable composition and method for producing curable composition
- the present invention relates to a curable composition, and more particularly, to a curable composition having excellent adhesive properties, rubber properties, rapid curability, and production stability.
- Patent Document 1 discloses an acrylic polymer obtained by polymerization using a special polymerization catalyst. Patent Document 1 also discloses a curable composition comprising the special acrylic polymer and a silane coupling agent. These curable compositions still have insufficient adhesive properties, rubber properties, and the like. Was not.
- a room temperature curable composition containing a crosslinkable silyl group-containing organic polymer has already been industrially produced and widely used for applications such as sealing materials, adhesives, and paints. Normally, these curable compositions are cured using various metal catalysts, and are used for various applications depending on the type and amount of addition.
- the catalyst As the catalyst, a reaction product of an organotin and an ester compound has been conventionally known (for example, see Patent Documents 2-5).
- esterii conjugates in particular, catalysts using phthalic acid esters are generally used.Sell phthalate is specified in the Ministry of Health, Labor and Welfare's VOC guidelines, and its existence has been pointed out. . In recent years, catalyst design using non-phthalate esters has been required.
- Patent Document 5 contains a crosslinkable silyl group containing a crosslinkable silyl group represented by -SiX.
- a curable composition containing a reaction product of an organic polymer and a dialkyltin oxide with an ester-based compound. Power is high. Due to high reactivity, a problem occurs in that the product is cured during production, Has become a problem. Considering the production stability, relatively low activity is not obtained. If an organotin-based curing catalyst is used, rapid curing cannot be obtained. If a tin-based curing catalyst is used, dialkyl tin oxide As in the case of the reaction product between the side and the ester compound, production stability cannot be obtained.
- Patent Document 1 JP 2001-40037 A
- Patent Document 2 Japanese Patent Publication No. 1-58219
- Patent Document 3 Japanese Patent No. 3062625
- Patent Document 4 JP-A-8-337713
- Patent Document 5 JP-A-2003-138151
- Patent Document 6 JP-A-11-12480
- Patent Document 7 JP-A-52-73998
- Patent Document 8 JP-A-55-9669
- Patent Document 9 JP-A-59-122541
- Patent Document 10 JP-A-60-6747
- Patent Document 11 JP-A-61-233043
- Patent Document 12 JP-A-63-112642
- Patent Document 13 JP-A-3-79627
- Patent Document 14 Japanese Patent Application Laid-Open No. 4-283259
- Patent Document 15 JP-A-5-70531
- Patent Document 16 JP-A-5-287186
- Patent Document 17 JP-A-11-80571
- Patent Document 18 JP-A-11-116763
- Patent Document 19 JP-A-11-130931
- Patent Document 20 Patent No. 3313360
- the present invention has been made in view of the above-mentioned problems of the related art.
- An object of the present invention is to provide a curable composition having excellent workability, adhesiveness, rubber properties, and storage stability.
- the present invention has an object to solve the problem of providing a curable composition excellent in fast curability, production stability, product stability and adhesiveness without using a phthalate ester. means
- a first embodiment of the curable composition of the present invention comprises (A) a crosslinkable silyl group-containing organic polymer, and (B) a metal represented by the following formula (1).
- a (meth) acrylic monomer having a polymerizable unsaturated bond is polymerized in the presence of a lipocene compound and a bridging silyl group-containing thiol compound. It is characterized by containing a (meth) acrylic polymer to which a residue —SR 3 (where R 3 is a group having a crosslinkable silyl group) from which a hydrogen atom has been removed from a compound is bonded.
- R 3 residue —SR 3
- acrylic and methacrylic are collectively referred to as (meth) acrylic.
- M is a metal selected from the group consisting of metals of Groups 4 to 5 of the periodic table, chromium, ruthenium and palladium, and R 1 and R 2 Each independently has an aliphatic hydrocarbon group which may have a substituent, an alicyclic hydrocarbon group which may have a substituent, an aromatic hydrocarbon group which may have a substituent, and a substituent May be at least one group selected from the group consisting of silicon-containing groups, or any one of a hydrogen atom and a single bond, and furthermore, R 1 and are together in the compound represented by the formula (1) Two or more 5-membered rings may be bonded, or a plurality of adjacent R 1 or may be jointly formed to form a cyclic structure a and b are each independently 1 to 4 Y is a hydrogen atom in which at least a part of a hydrogen atom is substituted with a halogen atom. Hydrocarbon groups that may Or a halogen atom, and n is
- Main chain strength of the (meth) acrylic polymer (B) has a repeating unit represented by the following formula (2) in an amount of 99% by weight or less and a unit other than the repeating unit represented by the formula (2). It is preferred that the polymerizable unsaturated compound having one or more crosslinkable silyl groups in the molecule as a repeating unit of the monomeric monomeric monomer The repeating unit to be induced is present in an amount within the range of 1 to 50% by weight.
- R 4 to R 6 each independently represent a hydrogen atom, a halogen atom or an alkyl group having 13 to 13 carbon atoms
- R 7 represents a hydrogen atom, an alkali metal atom, a carbon atom
- a hydrocarbon group represented by the following formula: 1 1 2 2 (the hydrocarbon group may be linear or may have a side chain, and may be a group forming the hydrocarbon group or a side chain of the hydrocarbon group)
- At least some of the hydrogen atoms in the compound are chlorine, fluorine, primary amino, secondary amino, tertiary amino, quaternary amine salts, amide, isocyanate, alkylene
- crosslinkable silyl group in the (meth) acrylic polymer (B) is preferably represented by the following general formula (3).
- X is a hydroxyl group or a hydrolyzable group, and three X's may be different even if they are the same.
- the crosslinkable silyl group in the (meth) acrylic polymer (B) is a crosslinkable silyl group represented by the following general formula (3) and a crosslinkable silyl group represented by the following general formula (4). It is preferable to have both.
- X is a hydroxyl group or a hydrolyzable group, and when a plurality of Xs are present, they may be the same or different.
- R 8 is a substituted or unsubstituted monovalent organic group having 1 to 20 carbon atoms, and when two or more are present, they may be the same or different; c is 1 or 2 is there. )
- the (meth) acrylic polymer (B) 1 a (meth) acrylic polymer containing a crosslinkable silyl group represented by the following general formula (3) and a crosslinkable polymer represented by the following general formula (4) It is preferably a mixture of (meth) acrylic polymers having a silyl group.
- X is a hydroxyl group or a hydrolyzable group, and when a plurality of Xs are present, they may be the same or different.
- R 8 is a substituted or unsubstituted monovalent organic group having 1 to 20 carbon atoms, and when two or more are present, they may be the same or different; c is 1 or 2 is there. )
- the composition further contains (C) a curing catalyst.
- the curing catalyst (C) contains (C1) an organotin represented by the following general formula (5).
- the organotin (C1) when used as a curing catalyst, it contains the component (A), the component (B), and the component (C1). Curability It is preferable that the composition is further subjected to a reaction treatment.
- a second embodiment of the curable composition of the present invention comprises (A) a crosslinkable silyl group-containing organic polymer, and (C1) an organotin represented by the following general formula (5).
- the second embodiment of the curable composition of the present invention it is preferable to further perform a reaction treatment to the curable composition containing the component (A) and the component (C1).
- the polymer (A) is an organic polymer containing a crosslinkable silyl group represented by the following general formula (3). But preferred.
- X is a hydroxyl group or a hydrolyzable group, and three Xs may be the same or different.
- the polymer (A) has a crosslinkable silyl group represented by the following general formula (3) and a polymer represented by the following general formula (4). It is preferable that the organic polymer has a crosslinkable silinole group.
- X is a hydroxyl group or a hydrolyzable group, and when a plurality of Xs are present, they may be the same or different.
- R 8 is a substituted or unsubstituted monovalent organic group having 1 to 20 carbon atoms, and when two or more are present, they may be the same or different; c is 1 or 2 is there. )
- the polymer (A) is an organic polymer containing a crosslinkable silyl group represented by the following general formula (3) and It is preferably a mixture of organic polymers containing a crosslinkable silyl group represented by the formula (4).
- X is a hydroxyl group or a hydrolyzable group, and when a plurality of Xs are present, they may be the same or different.
- R 8 is a substituted or unsubstituted monovalent organic group having 120 carbon atoms, and when a plurality of R 8 are present, they may be the same or different; c is 1 or 2.
- the polymer (A) is a cross-linked silyl group-containing polyoxyalkylene polymer, a cross-linkable silyl group-containing (meth) atalinole modified. It is preferable that at least one selected from the group consisting of a polyoxyalkylene polymer, a crosslinkable silyl group-containing polyisobutylene polymer, and a crosslinkable silyl group-containing (meth) acrylic polymer is used. .
- the method for producing the curable composition of the present invention is a method for producing a curable composition containing at least the polymer (A) and the organotin (C1), wherein the polymer (A)
- the curable composition containing the organotin (C1) and packed in a sealed container is further subjected to a reaction treatment.
- the present invention first, it is possible to provide a curable composition having excellent workability, adhesiveness, rubber properties, storage stability, deep curability, and rapid curability. Secondly, according to the present invention, it is possible to provide a curable composition which is high in safety because it does not use a phthalate ester, and which is excellent in fast curability, production stability, product stability and adhesiveness. .
- FIG. 1 is a graph showing the measurement results of touch dry time in Example 10 and Comparative Example 5. BEST MODE FOR CARRYING OUT THE INVENTION
- the first embodiment of the curable composition of the present invention is characterized by containing the following components (A) and (B).
- at least one terminal is bound to a residue -SR 3 (where R 3 is a group having a cross-linkable silyl group) in which a hydrogen atom has been removed from the cross-linkable silyl group-containing thiol compound.
- M is a metal selected from the group consisting of metals of Groups 4, 5, and 14 of the periodic table, chromium, ruthenium, and palladium; 1 and R 2 are each independently an aliphatic hydrocarbon group which may have a substituent, an alicyclic hydrocarbon group which may have a substituent, an aromatic hydrocarbon group which may have a substituent, and At least one group selected from the group consisting of silicon-containing groups, which may have a substituent, or a hydrogen atom or a single bond, and further, R 1 and R 2 together form formula (1) Or two or more adjacent R 1 or may be joined together to form a ring structure.
- Y is a hydrogen atom in which at least a part of Hydrocarbon groups that may be Or a halogen atom, and n is 0 or an integer having a valence of metal M of 12.
- the component (A) includes a silicon-containing group having a hydroxyl group or a hydrolyzable group bonded to a silicon atom and capable of crosslinking by forming a siloxane bond, that is, an organic compound having a crosslinkable silyl group.
- Polymers are used. Examples of such a crosslinkable silyl group-containing organic polymer (A) include those disclosed in Patent Document 220.
- the crosslinkable silyl group-containing organic polymer (A) has at least one crosslinkable silyl group in the molecule, and each of the main chains may contain onoleganosiloxane.
- Polyoxyalkylene polymers Polyoxyalkylene polymers, butyl-modified polyoxyalkylene polymers, (meth) acryl-modified polyoxyalkylene polymers, bur polymers, polyester polymers, (meth) acrylate polymers, and the like. And copolymers and mixtures thereof.
- the number of crosslinkable silyl groups is not particularly limited. However, from the viewpoint of the curability of the curable composition and the physical properties after curing, it is general that the number of crosslinkable silyl groups is 116 in the molecule. is there. Further, the crosslinkable silyl group is preferably a compound represented by the following general formula (6) which is easily crosslinked and easily produced.
- R 8 is a substituted or unsubstituted monovalent organic group having 1 to 20 carbon atoms, an anoalkyl group having 112 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or Most preferred is a methyl group, which is preferably an aralkyl group having 7 to 20 carbon atoms.
- X is a hydroxyl group or a hydrolyzable group, A group selected from a halogen atom, a hydrogen atom, a hydroxyl group, an alkoxy group, an acyloxy group, a ketoximate group, an amide group, an acid amide group, a mercapto group, an alkenyloxy group and an aminooxy group is preferable, and an alkoxy group is more preferable.
- Most preferred is a methoxy group, and when there are a plurality of Xs, they may be the same or different.d
- crosslinkable silyl group-containing organic compound (A) when a plurality of crosslinkable silyl groups are present, they may be the same or different. The number of d in They may be the same or different.
- an organic polymer having both a crosslinkable silyl group represented by the following formula (3) and a crosslinkable silyl group represented by the following formula (4) can be used.
- a mixture of an organic polymer having a crosslinkable silyl group represented by the following formula (3) and an organic polymer having a crosslinkable silyl group represented by the following formula (4) is preferably used.
- the crosslinkable silyl group-containing organic polymer may contain an organosiloxane in view of physical properties such as tensile adhesion and modulus after curing, polyoxyalkylene-based polymer, (meth) acryl-modified poly Oxyalkylene polymers, polyisobutylene polymers, (meth) acrylic polymers, and copolymers thereof are preferred.
- crosslinkable silyl group-containing organic polymer particularly, a crosslinkable silyl group-containing polyoxyalkylene polymer and a crosslinkable silyl group-containing (meth) acryl-modified polyoxyalkylene-based polymer are preferable. At least one polymer selected from polymers is preferred.
- the cross-linkable silyl group-containing organic polymer (A) has a number average molecular weight of 1,000 or more and 100,000 or less, preferably 3,000-50,000, and has a narrow molecular weight distribution. Force S, low viscosity before curing Therefore, physical properties such as strength, elongation, and modulus after curing, which are easy to handle, are suitable.
- the crosslinkable silyl group-containing organic polymer (A) may be used alone or in combination of two or more.
- a (meth) acrylic polymer shown in Patent Document 1 is used as the component (B). That is, the component (meth) acrylic polymer uses a metallocene compound represented by the following formula (1) and a crosslinkable silyl group-containing thiol compound as a catalyst, and the polymerizable non-polymerizable compound is used in the presence of the catalyst. It is a polymer obtained by polymerizing a saturated compound. In addition, a residue (1-S—R 3 ) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound used as a catalyst is bonded to at least one terminal of the polymer. Where R 3 is a crosslinkable silyl It is a group having a group.
- the meta-mouth compound used as the polymerization catalyst can be represented by the following formula (1).
- M is a metal selected from the group consisting of metals of Groups 4 to 5 of the periodic table, chromium, ruthenium and palladium. Specifically, M is titanium, zirconium, chromium, ruthenium, vanadium, palladium, tin, and the like.
- R 1 and R 2 each independently represent an aliphatic hydrocarbon group which may have a substituent, an alicyclic hydrocarbon group which may have a substituent, or a substituent. At least one group selected from the group consisting of an aromatic hydrocarbon group which may have a substituent and a silicon-containing group which may have a substituent, or a hydrogen atom or a single bond.
- a and b are each independently an integer of 14; Y is a hydrocarbon group or a halogen in which at least a part of a hydrogen atom may be substituted with a halogen atom. Is an atom, and n is 0 or an integer having a valence of 12 of the metal M.
- meta-opencane compound examples include dicyclopentadiene-Ti dichloride, dicyclopentadiene-ti-bisphenyl, dicyclopentadiene-ti-bis_2,3,4,5, 6_pentafluorophenyl-1-yl, dicyclopentadiene-Ti-bis-2,3,5,6_ tetrafluorophenyl-2-yl, dicyclopentadiene-Ti-bis-2,5 6_Trifluorophen-2-yl, dicyclopentadiene Ti-bis-2,6-difluorophenyl_1-yl, dicyclopentadiene Ti-bis-2,4-difluorophenyl-2-yl Dimethyl cyclodimethyl Intermediate Ti-bis _2,3,4,5,6_pentafluorophenyl_1-yl, dimethylsic pentageninole-1 Ti-bis-1,2,3,5,6-tetrafluoropheny
- the meta-mouth compound can be used in a usual catalytic amount, and specifically, usually 100 to 0.001 parts by weight of the polymerizable unsaturated compound to be polymerized. It is used in an amount of 0.01 to 0.005 parts by weight, preferably 0.01 to 0.005 parts by weight.
- the thiol compound used in the present invention together with the meta-opencane compound is a thiol compound having a crosslinkable silyl group.
- this crosslinkable silyl group-containing thiol compound has the following formula HS-R The compound represented by 3 .
- R 3 is a group having a crosslinkable silyl group, the crosslinkable silyl group, can be used exemplified crosslinkable silyl group in the description of component (A) as well, in particular, hydroxy sheet
- At least one type of crosslinkable silyl group selected from the group consisting of a luyl group, a methoxysilyl group, an ethoxysilyl group, a propoxysilyl group, a chlorosilyl group and a promosilyl group is preferred.
- R 3 is, specifically, 3-mercaptopropyl-trimethoxysilane, 3-mercaptopropyl-triethoxysilane, 3-mercaptopropyl-monomethyldimethoxysilane, 3-mercaptopropyl-monophenyldimethoxysilane, 3-mercapto Examples thereof include propyl-dimethylmonomethoxysilane, 3-mercaptopropyl-monomethylmethoxysilane, 4-mercaptobutyl-trimethoxysilane, and 3-mercaptobutyl trimethoxysilane.
- Such a crosslinkable silyl group-containing thiol compound is withdrawn a hydrogen atom primarily by organometallic compounds in the reaction, 'S- R 3 radicals is caused, at least one polymer which this radical is made form It is thought to be introduced at the end.
- the crosslinkable silyl group thus introduced at the terminal of the polymer retains the activity of the introduced silyl group without losing the activity by this reaction.
- the methoxacene compound is used mainly for activating the crosslinkable silyl group-containing thiol compound as described above, and is usually a methoxacene compound having the same structure as that used, that is, the formula Although it exists as a compound represented by (1), a part of the compound may be bonded to a crosslinkable silyl group-containing thiol compound, a polymerizable unsaturated compound, or a derivative thereof. At the same time, the organometallic compound may be decomposed and the metal may be contained in the reaction system.
- the amount of the crosslinkable silyl group-containing thiol compound to be used can be appropriately set in consideration of the properties of the polymer to be obtained. That is, as the concentration of the crosslinkable silyl group-containing thiol compound in the reaction system increases, the polymerization rate per unit time increases, and the ultimate polymerization rate also increases. At this time, when the amount of the meta-mouth compound increases, the polymerization rate per unit time increases, and the ultimate polymerization rate does not have a significant effect. In addition, the use of Although the dose has little effect on the molecular weight of the resulting polymer, the reaction does not proceed effectively without this metallocene compound. In addition, increasing the use of the thiol compound increases the rate of polymerization.
- the meta-mouth compound acts as an activating catalyst in the whole reaction, and the thiol compound has a polymerization initiating action (acts as a polymerization initiating species). To do).
- the amount of the crosslinkable silyl group-containing thiol compound used in the catalyst used in the component (B) of the present invention is governed by the molecular weight and the polymerization rate.
- the amount of the thiol compound containing a crosslinkable silyl group can be appropriately set in consideration of the molecular weight of the polymer to be obtained, the polymerization rate, and the like.
- the meta-mouth compound and the crosslinkable silyl group-containing thiol conjugate are usually in a molar ratio within the range of 100: 1 to 1: 50,000, preferably 10: 1 to 1: 1000. Used in a molar ratio of
- the crosslinkable silyl group-containing thiol compound can be added in its entirety at the start of the reaction, or the crosslinkable silyl group-containing thiol compound is added first, reacted for a desired time, and then crosslinked.
- the thiol compound having a crosslinkable silyl group can be additionally added, or both the thiol compound having a crosslinkable silyl group and the polymerizable unsaturated compound can be additionally added.
- the addition rate of the crosslinkable silyl group-containing thiol compound or the addition of the crosslinkable silyl group-containing thiol compound and the polymerizable unsaturated compound improves the polymerization rate.
- the component (B) (meth) acrylic polymer of the present invention is obtained by using the metallocene compound represented by the above specific formula (1) and a crosslinkable silyl group-containing thiol compound as a polymerizable unsaturated compound.
- the present invention further comprises ethyl mercaptan, butyl mercaptan, hexyl menolecaptan, tertiary decyl mercaptan, normal dodecyl mercaptan, Thiol compounds having no functional groups other than thiol groups such as octyl mercaptan, and alkyl thiols, phenyl mercaptan, benzyl mercaptan, etc. Or / 3—mercaptopropionic acid, mercaptoethanol, thiophenol, etc.
- a disulfide compound in addition to the meta-mouth compound and the crosslinkable silyl group-containing thiol compound as the polymerization initiating catalyst, a disulfide compound, a trisulfide compound, A tetrasulfide compound can be used.
- Examples of the disulfide compound, trisulfide compound, and tetrasulfide compound used as the polymerization regulator that can be used herein include getyl trisulfide, dibutyltetrasulfide, diphenyldisulfide, bis (2 —Hydroxyethynole) disulfide, bis (4-hydroxybutynole) tetrasulfide, bis (3-hydroxypropynole) trisnolide, bis (3-carboxypropyl) trisulphide, bis (3-carboxypropyl) tetrasnollide, bis Examples thereof include (3-propyltrimethoxysilane) disanolide, and bis (3-propyltriethoxysilane) tetrasulfide.
- sulfide compounds can be used alone or in combination.
- a sulfide compound can be used in the polymerization of the present invention to such an extent that it does not inactivate the polymerization.Specifically, it is usually used with respect to 100 parts by weight of the polymerizable unsaturated compound to be polymerized. It is used in an amount of 50-0 parts by weight, preferably 20-0.005 parts by weight.
- the main chain forming the component (B) (meth) acrylic polymer of the present invention is formed by polymerizing a polymerizable unsaturated compound as described below.
- a polymerizable unsaturated compound examples include polymerizable unsaturated compounds represented by the following formulas (7) to (9).
- R 4 and R 6 each independently represent a hydrogen atom, a halogen atom or an alkyl group having 13 to 13 carbon atoms
- R 7 represents a hydrogen atom, an alkali metal Atom, a hydrocarbon group having 122 carbon atoms (the hydrocarbon group may be linear or may have a side chain, and may form the hydrocarbon group or a side chain of the hydrocarbon group.
- At least a part is a chlorine atom, a fluorine atom, a primary amino group, a secondary amino group, a tertiary amino group, a quaternary amine salt group, an amide group, an isocyanate group, an alkylene oxide group, a hydroxysilyl group A methoxysilyl group, an ethoxysilyl group, a propoxysilyl group, a chlorosilinole group, a promosilyl group and a glycidinole group, which may be substituted with at least one polar group or a reactive functional group.
- the hydrocarbon group may have a double bond, and the hydrocarbon group may have a cyclic structure).
- examples of R 7 include an alkyl group, a cycloalkyl group, an aryl group, an alkenyl group, a cycloalkenyl group, an alkoxy group, and an alkyl ether group. At least a part of the hydrogen atoms constituting the group R 7 may be substituted with a halogen atom, a sulfonic acid group, a glycidyl group, or the like.
- R 11 —R 13 have the same meaning as R 4 R 6 above, and R ′′ is a hydroxyl group, —CO—NH group, —CN group, glycidinole group, alkyl Group, alkoxy group, arke
- the group R 14 may be a group having a structural unit from which an alkylene glycol force is also induced, a methylol group, or an alkoxyamide group.
- R 1 ′ have the same meaning as R 4 R 6, and R and R 18 each independently represent a carboxyl group, a hydroxyl group, a _C ⁇ _NH group , —CN group,
- Salts such as acrylic acid and alkali metal acrylate; salts such as methacrylic acid and alkali metal methacrylate; methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, pentyl acrylate, hexyl acrylate, Acrylic acid _2—alkyl acrylates such as ethylhexyl, octyl acrylate, nonyl acrylate, decyl acrylate, dodecyl acrylate; aryl acrylates such as phenyl acrylate and benzyl acrylate; acrylic Alkoxyalkyl acrylates, such as methoxyethyl methacrylate, ethoxyxyl acrylate, propoxethyl acrylate, butoxyshethyl acrylate, ethoxypropyl acrylate; methyl methacrylate, ethyl methacrylate, propyl methacryl
- Dimethacrylates of alkylene glycols polyacryls such as trimethylolpropane triacrylate Acid esters; polyhydric methacrylates such as trimethylolpropane trimethacrylate; acrylonitrile; methacrylonitrile; butyl acetate; vinylidene chloride; acrylic acid-2_chloroethyl, methacrylic acid-2_cloguchiethyl Halo Vinylated compounds; acrylates of alicyclic alcohols such as cyclohexyl acrylate; methacrylates of alicyclic alcohols such as cyclohexyl methacrylate; 2-vul 2-oxazoline, 2-vul Oxazoline group-containing polymerizable compounds such as 5-methinolay 2-oxazoline and 2-isopropenyl-2-oxazoline; atariloylaziridine, methacryloylaziridine, acrylic acid-2_aziridinylethyl, methacryloleic acid-2_aziridin
- a macromonomer having a radical polymerizable bur group at the terminal of a monomer obtained by polymerizing a bur group eg, a fluorine monomer, a silicon-containing monomer, a macromonomer, styrene, silicon, etc.
- a bur group eg, a fluorine monomer, a silicon-containing monomer, a macromonomer, styrene, silicon, etc.
- These polymerizable unsaturated compounds can be used alone or in combination.
- These polymerizable unsaturated compounds may be liquid or solid under the reaction conditions, and may be a gas. Is preferred.
- the component (B) (meth) acrylic polymer of the present invention comprises the (meth) acene compound and the crosslinkable A polymer obtained by various polymerization methods for a polymerizable unsaturated compound in the presence of a polymerization catalyst comprising a silyl group-containing thiol conjugate and a crosslinkable silyl group-containing thiol at least one molecular terminal. Hydrogen bonded to sulfur atom is eliminated from compound. ⁇ S-R 3 is bonded.
- the main chain of the compound represented by the following formulas (2), (10) and (11) corresponds to the polymerizable unsaturated compound to be used. Repeated CRI units are formed.
- R 4 to R 6 each independently represent a hydrogen atom, a halogen atom or an alkyl group having 13 to 13 carbon atoms
- R 7 represents a hydrogen atom, an alkali metal atom
- a hydrocarbon group represented by the formula: 1 1 to 22 (the hydrocarbon group may be linear or may have a side chain; and in the hydrocarbon group or a group forming a side chain of the hydrocarbon group, At least some of the hydrogen atoms of the above are chlorine atoms, fluorine atoms, primary amino groups, secondary amino groups, tertiary amino groups, quaternary amine salts, amide groups, isocyanate groups, and alkylene oxides.
- R 7 examples include an alkyl group, a cycloalkyl group, an aryl group, an alkenyl group, a cycloalkenyl group, an alkoxy group, and an alkyl ether group. At least a part of the hydrogen atoms constituting the group R 7 may be substituted with a halogen atom, a sulfonic acid group, a glycidyl group, or the like.
- R 11 to R 13 have the same meaning as R 4 R 6 described above, and R ′′ is a hydroxyl group, a —CO—NH 2 group, a —CN group, a glycidinole group, Alkyl group, alkoxy group, al It is any one of a kenyl group, a cycloalkenyl group, an aryl group, an aryl ether group and an alkyl ether group. At least part of hydrogen atoms constituting the group R 14, it may also be substituted with a halogen atom such les.
- the group R 14 may be a group having a structural unit, an alkoxysilyl group, an alkylalkoxysilyl group, a methylol group, or an alkoxyamide group, from which alkylene glycol is induced.
- R 15 and R 17 are the same as defined above
- R 4 R 6, R 1 6 and R 18 are each independently, Karubokishinore group, a hydroxyl group, _C_ ⁇ _NH group, -CN group
- the main chain of the component (B) (meth) acrylic polymer of the present invention is not particularly limited, and the repeating unit represented by the formula (2) may have an amount of 50 to 100% by weight. Is preferred.
- a polymerizable unsaturated monomer [E] having a crosslinkable silyl group can be copolymerized.
- the crosslinkable silyl group the crosslinkable silyl group exemplified in the description of the component (A) can be used in the same manner, and in particular, a hydroxysilyl group, a methoxysilyl group, an ethoxysilyl group, a propoxysilyl group, a chlorosilyl group And at least one type of crosslinkable silyl group selected from the group consisting of bromosilyl group and bromosilyl group.
- the polymerizable unsaturated monomer [E] having a crosslinkable silyl group used here can be represented, for example, by the following formula (12).
- R 21, R 23 is the R 4 - has the same meaning as R 6,
- R 22 is hydrogen atom, a halogen atom, one CN group, a glycidyl group, an alkyl group, an alkoxy group Alkenyl group, cycloalkenyl group, aryl group, aryl ether group, alkyl ether group, alkoxysilyl group, alkylalkoxysilyl group.
- group R 22 is a group other than a hydrogen atom, a halogen atom, at least part of the hydrogen atoms constituting the group may be substituted with a halogen atom or the like.
- the group R 22 may be a group having a structural unit derived from an alkylene glycol, an alkoxysilyl group, an alkylalkoxysilyl group, a methylol group, or an alkoxyamide group.
- R 24 is _CO_ ⁇ _, -CH-, -CH-, -CO-OC H-, _C ⁇ _ ⁇ _CH-
- R 25 , R 26 , and R 27 are each independently any of an phenol group, an alkoxy group, a hydrogen atom, and a halogen atom.
- the repeating unit represented by the formula (13) is contained in an amount of 1 to 50% by weight in all the repeating units. It is preferably introduced, more preferably in an amount of 530% by weight (this introduction ratio is a monomer conversion value).
- this introduction ratio is a monomer conversion value.
- a cured product is obtained by reacting with a silane coupling agent, a silanol compound, an alkoxy metal such as tetraethoxytitanium, a metal chelate such as a metal alcoholate, or a resin composition having an alkoxysilyl group such as a silicone resin.
- the force S can be formed.
- the repeating unit represented by the formula (13) is a crosslinkable silicone.
- Examples of the expression such as (13) can form a repeating unit represented by the monomer [E] is Bulle trimethoxysilane, .gamma. Bulle one monochlorosilane dimethoxysilane, gamma - Bulle one trichloroethane Roshiran, .gamma.
- the component ( ⁇ ) (meth) acrylic polymer is a compound represented by the formula (1) It can be produced by (co) polymerizing the polymerizable unsaturated compound in the presence of a thiol compound containing a reactive silyl group. This reaction can be carried out with or without a solvent or a dispersion medium. Non-aqueous polymerization is preferred from the viewpoint of the stability of the crosslinkable silyl group.
- This polymerization reaction is usually performed in an inert gas atmosphere, and the conditions used in a normal radical polymerization method can be used. Therefore, there is no active gas such as oxygen in this polymerization reaction system.
- the inert gas used here include nitrogen gas, argon gas, helium gas, and carbon dioxide gas.
- the component ( ⁇ ) of the present invention is obtained by polymerizing a polymerizable unsaturated compound in the presence of a specific organometallic compound and a crosslinkable silyl group-containing thiol compound as described above.
- a meta-mouth compound represented by the above formula (1) used as a catalyst And a crosslinkable silyl group-containing thiol compound, the polymerization catalyst can be used in an ordinary catalytic amount, and the molar ratio of the unsaturated group of the polymerizable unsaturated compound to 1 mol is represented by the formula (1).
- the meta-mouth compound represented by the formula is usually 0.0000000-0.0001 monole, preferably, the number of moles of the cross-linkable silyl group-containing thiol compound to be used. Use so that the molar ratio with the compound is 10: 1-1: 10000.
- the crosslinkable silyl group-containing thiol compound is usually used in the range of 0.0001 to 0.7 monolayer, preferably in the range of 0.0001 to 0.5 monolayer.
- such a polymerization reaction can be carried out under heating or heating, or can be carried out while cooling.
- the polymerization reaction temperature is in the range of 0 150 ° C. It is particularly preferable to set the temperature within the range of 25 to 120 ° C. By setting the polymerization reaction temperature within the above range, the reaction can proceed stably without runaway. Force depending on the activity of the unsaturated group of the polymerizable unsaturated compound used Even if a relatively polymerizable (meth) acrylate-based polymerizable unsaturated compound is used, the reaction temperature is kept at 0 ° C or less.
- the activity of the meta-mouth compound represented by the formula (1) and the crosslinkable silyl group-containing thiol compound as a catalyst becomes low, the time required to achieve a sufficient polymerization rate becomes long, and the efficiency is poor. Furthermore, even when a compound having low polymerization activity such as a styrene-type unsaturated compound is used, a sufficient polymerization rate can be achieved under conditions of 25 ° C. or higher.
- the reaction time can be appropriately set in consideration of the polymerization rate, the molecular weight, and the like.For example, under the above-described conditions, the reaction time is usually 212 hours, preferably 28 hours. It is preferable to set within the range.
- This polymerization reaction can be stopped by lowering the temperature of the reaction product, and more preferably by adding a polymerization reaction terminator such as benzoquinone.
- a polymer having a polymerization rate of usually 40% or more, preferably 60% or more is obtained.
- the weight of the obtained polymer was measured using gel permeation chromatography (GPC).
- the average molecular weight (Mw) is usually in the range of 500 to 1,000,000, preferably 1000 to 300,000, and the number average molecular weight ( ⁇ ) is usually in the range of 500 to 1,000,000, preferably 1000 to 100,000. It is in.
- the polymer obtained by polymerization using a polymerization catalyst contains an organometallic compound unless a deashing step is provided. Further, a sulfur-containing group derived from the thiols used is bonded to at least a part of the terminal of the molecule of the obtained polymer. That is, in the polymerization using the above-mentioned catalyst, a crosslinkable silyl group-containing thiol compound is used as a polymerization initiating species. However, these crosslinkable silyl group-containing thiol compounds are generally active alone as a polymerization initiating species.
- a thiol group having a crosslinkable silyl group which can be derived from a thiol compound having a crosslinkable silyl group, has an activity capable of initiating polymerization by an organic metal catalyst. Species and can be the starting species for the monomer. For this reason, in this reaction, the polymerization rate per unit time is improved by increasing the amount of the crosslinkable silyl group-containing thiol compound relative to the monomer amount. Then, a sulfur-containing group derived from the used crosslinkable silyl group-containing thiol compound is bonded to the polymerization start terminal of the obtained polymer.
- the crosslinkable silyl group-containing thiol compound used here acts not only as a polymerization initiating species but also as a chain transfer agent, and the molecular weight (polymerization amount) depends on the amount of the crosslinkable silyl group-containing thiol compound. Degree) and the degree of polymerization. From these phenomena, it can be inferred that the progress and termination of the polymerization in this reaction are radical polymerizations. Further, the thio radical ('S) of the crosslinkable silyl group-containing thiol conjugate which has been hydrogen-extracted by chain transfer attacks the monomer again as a polymerization initiating species.
- the polymer obtained by the present polymerization method has a sulfur-containing compound derived from the crosslinkable silyl group-containing thiol compound used at the end of the produced polymer. The groups will be attached.
- the reaction system in the component (II) of the present invention can be polymerized in a polar organic solvent such as alcohol or a dispersion medium such as water in the same manner as in solution polymerization or bulk polymerization. It is considered that the radical reaction predominates in the polymerization. Therefore, it can be obtained
- the terminating terminal of the polymer is derived from hydrogen by chain transfer with a silyl group-containing thiol compound, or thiols having a radicalized thiol radical and a silyl group-containing thiol compound by radical coupling with a growing polymer radical. It is considered to be a sulfur-containing group.
- the meta-mouth compound compound is left as it is, or is bonded to another organic group, and further remains as a metal.
- the crosslinkable silyl group-containing thiol compound directly contributes to the polymer formation reaction, and the reaction proceeds while decomposing itself, so that the terminal group derived from the crosslinkable silyl group-containing thiol compound becomes heavy. It is introduced at the end of coalescence.
- the activity of the crosslinkable silyl group in the group derived from the crosslinkable silyl group-containing thiol compound bonded to the terminal is not impaired by the above-mentioned polymerization. Is retained.
- the above estimation and reaction progress are based on the assumption that the present inventors can reasonably estimate from various phenomena in the reaction of the present invention, and it is not limited that the present invention is limited thereby. Of course.
- the polymerizable non-polymerizable compound may be used in the presence of the meta-acene compound represented by the formula (1) and a thiol compound having at least one crosslinkable silyl group in the molecule.
- the amount%, preferably 5 30 has an amount in weight percent range (meth) acrylic polymer (B1) is preferred.
- the (meth) acrylic polymer (B1) has a repeating unit represented by the formula (2), and further has a polymerizable unsaturated compound represented by the formula (12) or the like.
- the monomeric force has a repeating unit derived, and further has a reactivity such as a repeating unit represented by the above formula (10) and the above formula (11) and other (a dimer or a trimer such as ethylene or propylene).
- the monomer unit may have a repeating unit to be induced.
- the copolymerization amount of the repeating unit derived from these other monomers is usually 0 to 40% by weight, preferably 0 to 20% by weight.
- the polymerization amount in the present invention is a value when the total amount of each repeating unit in the (co) polymer is 100% by weight.
- the weight average molecular weight (Mw) of such a (meth) acrylic polymer (B1) measured by gel permeation chromatography (GPC) is usually in the range of 500 to 1,000,000, preferably 1000 to 300,000. And the number average molecular weight (Mil) is usually in the range of 500 1,000,000, preferably 1000-100,000.
- Such a (meth) acrylic polymer (B1) is usually a viscous liquid in a state containing a solvent or in a state of 100% as a resin component. It is cured by reacting. The cured body has elasticity and flexibility.
- the (meth) acrylic polymer having a repeating unit as described above and having a component unit derived from a thiol compound having a silyl group at the terminal of the polymer has the formula (12) introduced into the main chain.
- crosslinkable silyl group derived from and the crosslinkable silyl group introduced at the molecular end have high reactivity, and this (meth) acrylic polymer (B1) has a self-condensation reaction, a condensation crosslinking reaction, Alternatively, it has the property of being cured by combining a self-condensation reaction and a condensation crosslinking reaction.
- the mixing ratio of component (B) is not particularly limited, but it is preferable to use 0.01 to 100 parts by weight, particularly 0.1 to 90 parts by weight, per 1 part by weight of component (A).
- These (meth) acrylic polymers may be used alone or in combination of two or more.
- a component (C) a curing catalyst is not particularly restricted but includes, for example, organometallic compounds diamines and the like, and it is particularly preferable to use a silanol condensation catalyst.
- silanol condensation catalyst examples include stannasoctoate, dibutyltin diotatoate, dibutyltin dilaurate, dibutyltin maleate, dibutyltin diacetate, dibutyltin diacetylacetonate, dibutyltin oxide, dibutyltin bistriethoxysilicate, dibutyltin Organotin compounds such as tyltin distearate, dioctyltin dilaurate, dioctyltin diversate, tin octylate and tin naphthenate; organotin compounds (C1) represented by the following general formula (5); dibutyltin oxide and phthalic acid ester Titanates such as tetrabutyl titanate and tetrapropyl titanate; organic aluminum compounds such as aluminum trisacetyl acetatetonate, aluminum trisethyl acetate a
- R 9 and are each a monovalent hydrocarbon group.
- the monovalent hydrocarbon group of R 9 and R 1Q is not particularly limited, and includes, for example, a methyl group, an ethyl group, a propyl group, a butyl group, an amyl group, a dodecyl group, a laurinole group, a propyl group, and a phenyl group.
- Preferred examples include hydrocarbon groups having about 120 carbon atoms, such as groups and tolyl groups.
- R 9 and R 1Q may be the same or different.
- the organic tin (C1) represented by the general formula (5) dialkyltin oxides such as dimethyltin oxide, dibutyltin oxide, and dioctyltin oxide are particularly preferable.
- a curable composition containing at least the components (A), (B) and (C1) is After packing in a sealed container, it is preferable to carry out a reaction treatment in order to develop rapid curing properties.
- the reaction treatment may be performed in the same manner as in the method for producing the curable composition of the present invention described later.
- the mixing ratio of the component (C) is 0.1 to 30 parts by weight, particularly 0.5 to 20 parts by weight, based on 100 parts by weight of the component (A), in view of the crosslinking rate, the physical properties of the cured product, and the like. It is preferable to use parts by weight.
- These curing catalysts may be used alone or in combination of two or more.
- a silane coupling agent for example, aminosilanes such as aminoethylaminopropylpyrutrimethoxysilane, aminoethylaminopropylmethyldimethoxysilane, and aminoethylaminopropylmethylmethoxysilane; Epoxy silanes such as ⁇ -glycidoxy propyl trimethoxy silane; methacryloxypropyl trimethoxy silane to silanes; and isocyanate silanes such as y-isocyanate propyl trimethoxy silane.
- aminosilanes such as aminoethylaminopropylpyrutrimethoxysilane, aminoethylaminopropylmethyldimethoxysilane, and aminoethylaminopropylmethylmethoxysilane
- Epoxy silanes such as ⁇ -glycidoxy propyl trimethoxy silane
- the mixing ratio of the component (D) is not particularly limited, but preferably 0.1 to 30 parts by weight of the component (D) per 100 parts by weight of the component (A). Part by weight is more preferred.
- These silane coupling agents may be used alone or in combination of two or more.
- the curable composition of the present invention may further comprise, if necessary, a physical property modifier, a filler, a plasticizer, a thixotropic agent, a dehydrating agent (storage stability improver), and a tackifier, in addition to the components described above.
- a physical property modifier e.g., a filler, a plasticizer, a thixotropic agent, a dehydrating agent (storage stability improver), and a tackifier, in addition to the components described above.
- the physical property modifier is added for the purpose of improving tensile properties.
- the physical property modifier include a silicon compound having one silanol group in one molecule, for example, triphenylsilanol, trialkylsilanol, dialkylphenylsilanol, diphenylalkylsilanol, and the like.
- various silane coupling agents such as a silicon compound which hydrolyzes to form a compound having one silanol group in one molecule, such as triphenylmethoxysilane, trialkylmethoxysilane, and dialkylphenylmethoxy. Examples include silane, diphenylalkylmethoxysilane, triphenylethoxysilane, and trialkylethoxysilane.
- the physical property modifiers may be used alone or in combination of two or more.
- the filler is added for the purpose of reinforcing the cured product.
- the filler for example, calcium carbonate, magnesium carbonate, diatomaceous earth hydrated silicic acid, hydrated silicic acid, silicic anhydride, calcium silicate, silica, titanium dioxide, clay, tanolek, carbon black, slate powder, myriki, kaolin , Zeolite, etc., of which calcium carbonate is a preferred fat Acid-treated calcium carbonate is more preferred.
- glass beads silica beads, alumina beads, carbon beads, styrene beads, phenol beads, acrylic beads, porous silica, shirasu balloons, glass balloons, silica balloons, Saran balloons, acrylic balloons, and the like can also be used.
- acrylic balloons are more preferable in that the decrease in elongation after curing of the composition is small.
- the fillers may be used alone or in combination of two or more.
- the plasticizer is added for the purpose of enhancing elongation properties after curing and enabling reduction in modulus.
- the plasticizer include phosphate esters such as triptyl phosphate and tricresinole phosphate; phthalate esters such as dioctyl phthalate (D ⁇ P), dibutyl phthalate and butyl benzyl phthalate; glycerin monooleate Fatty acid monosalts such as esters Base acid esters; fatty acid dibasic acid esters such as dibutyl adipate and dioctyl adipate; dalicol esters such as polypropylene glycol; aliphatic esters; epoxy plasticizers; polyester plasticizers Polyethers; polystyrenes, acrylic plasticizers and the like.
- the plasticizer may be used alone or in combination of two or more.
- thixotropic agent examples include inorganic thixotropic agents such as colloidal silica and asbestos powder, organic bentonite, modified polyester polyols, organic thixotropic agents such as fatty acid amides, hydrogenated castor oil derivatives, and fatty acid amides. Wax, aluminum stearylate, barium stearylate and the like can be mentioned.
- the thixotropic agent may be used alone or in combination of two or more.
- the dehydrating agent is added for the purpose of removing water during storage.
- the dehydrating agent include silane compounds such as butyltrimethoxysilane, dimethyldimethoxysilane, tetraethoxysilane, methyltrimethoxysilane, and methyltriethoxysilane.
- the antioxidant is used to prevent oxidation of the cured sealing material and improve weather resistance, and examples thereof include a hindered amine-based and hindered phenol-based antioxidant.
- the hindered amine antioxidants e.g., N, N r, N " , N"'- tetrakis one (4, 6_ bis (butyl one (N- methyl one 2, 2, 6, 6-Tetoramechinore piperidine - 4 — (Yl) amino) —triazine_2—yl) —4,7—diazadecane—1, 10—diami , Dibutynoleamine ⁇ 1,3,5_triazine ⁇ ⁇ , ⁇ '-bis (2,2,6,6-tetramethynoley 4 -piberidyl 1,6_hexamethylenediamine ⁇ ⁇ _ (2,2,6 Polycondensate of 2,6-tetramethynolei-4-piperidyl)
- phenol-based antioxidant examples include, for example, pentaeristol tetratetrakis [3_ (3,5_di-tert-butyl-4-hydroxyphenyl) propiothioethylene-bis [3 -— (3,5_di-tert-butyl-4 —Hydroxyphenyl) propionate], octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], N, N′-hexane—16_diylbis [3 -— (3,5 _Di-tert-butynole-4-hydroxyphenylpropioamide], 3,5_bis (1,1_dimethylethynole) benzenepropanoate_4-hydroxy C7 —C9 side chain alkyl ester, 24_dimethyl-6_ (1— Methylpentadecyl) phenol, getyl [[35_bis (11_di)
- the ultraviolet absorber is used to prevent light deterioration of the cured sealing material and to improve weather resistance, and for example, benzotriazole, triazine, benzophenone, benzoate, etc. UV absorbers and the like.
- UV absorbers include 2,4-di-tert-butynole _6_ (5-chloro-benzobenzotriazono-1-yne) phenol, and 2_ (2H-benzotriazono_2).
- Benzophenone-based ultraviolet absorber 2, 4-di-tert- Buchirufue two Lou 3, 5-di-t Ert- butyl-4-hydroxy etc. benzoate type ultraviolet absorbers benzoate is not limited to these forces mentioned.
- the ultraviolet absorbers may be used alone or in combination of two or more.
- the second embodiment of the curable composition of the present invention comprises (A) a crosslinkable silyl group-containing organic polymer, and (C1) an organotin represented by the following general formula (5). It becomes.
- R 9 and R 1Q are each a monovalent hydrocarbon group.
- the components (A) and (CI) are as described above in the first embodiment of the curable composition of the present invention.
- the component (A) the above-mentioned (meth) acrylic polymer (B) having a bridging silyl group as disclosed in Patent Document 1 can also be used.
- the component (C1) is as described above in the first embodiment of the curable composition of the present invention, and the compounding ratio of the component (C1) is the same as that of the first embodiment of the curable composition of the present invention. The same can be done. The same applies to the compounds other than the above components as in the first embodiment.
- the curable composition of the present invention is not particularly limited, but is preferably produced by the method of producing the curable composition of the present invention because the curability can be promoted.
- the method for producing a curable composition according to the present invention is characterized in that the curable composition containing at least the polymer (A) and the organotin (C1) as a curing catalyst is packaged in a closed container, and then cured at a high speed. In order to express the above, a reaction treatment is added.
- the reaction treatment for developing the quick-curing property is not particularly limited, and for example, a heat treatment may be performed at a low temperature and a normal temperature until the rapid-curing property is developed.
- the heat treatment is preferably performed at 30 ° C. to 150 ° C. for 30 minutes to 3 days.
- the curable composition of the present invention using the above-mentioned organotin (C1) as the curing catalyst (C) has high production stability and moderate curability, and is usually stored at room temperature for about one month. However, by applying the heat treatment, the curability can be remarkably promoted.
- the heat treatment may be appropriately performed depending on the situation.
- reaction product was transferred to an evaporator, and while gradually heating to 80 ° C under reduced pressure, xylene, THF, remaining monomers, and remaining thiol compounds were removed, and the crosslinkable silyl group-containing polyoxyalkylene was removed.
- a mixture 1 of the polymer (A) and the (meth) acrylic polymer (B) was obtained.
- the synthesis was carried out in the same manner as in Synthesis Example 1 except that the content of the flask was replaced with 10 parts by weight of normal butyl acrylate and 70 parts by weight of methyl methacrylate instead of 80 parts by weight of methyl methacrylate, and crosslinked.
- a mixture 2 of the reactive silyl group-containing polyoxyalkylene polymer (A) and the (meth) acrylic polymer (B) was obtained.
- silyl group-containing organic polymer (A) As the content in the flask, as a crosslinkable silyl group-containing organic polymer (A), instead of 150 parts by weight of Silyl SAT-200 (crosslinkable silyl group: methyldimethoxysilyl group), Silinole SAT-200 (crosslinkable silyl group) was used. Group: methyldimethoxysilyl group) and 75 parts by weight of ES-GX3440 ST (crosslinkable silyl group: trimethoxysilyl group) except that the synthesis was carried out in the same manner as in Synthesis Example 3, except that 75 parts by weight were mixed. A mixture 5 of the reactive silyl group-containing polyoxyalkylene polymer (A) and the (meth) acrylic polymer (B) was obtained.
- crosslinkable silyl group-containing organic polymer As the content in the flask, as a crosslinkable silyl group-containing organic polymer (A), instead of 150 parts by weight of Silyl SAT 200 (crosslinkable silyl group: methyldimethoxysilyl group), Silinore MA-440 (crosslinkable silyl group) was used.
- the synthesis was performed in the same manner as in Synthesis Example 3 except that 150 parts by weight of a (meth) acrylic-modified polyoxyalkylene-based polymer, a crosslinkable silyl group: methyldimethoxysilyl group, manufactured by Kaneka Chemical Industry Co., Ltd.) were added.
- a mixture 6 of a (meth) acryl-modified polyoxyalkylene polymer (A) and a (meth) acrylic polymer (B) containing a crosslinkable silyl group was obtained.
- reaction product was transferred to an evaporator, and while gradually heating to 80 ° C under reduced pressure, THF, the remaining monomer, and the remaining thiol compound were removed, and the (meth) atalinole-based polymer 1 (B ).
- the contents in the flask were 45 parts by weight of xylene heated to 110 ° C, 80 parts by weight of methyl methacrylate, 20 parts by weight of stearyl methacrylate, 2.5 parts by weight of ⁇ -methacryloxypropyl trimethoxysilane, 3 parts by weight ___________________________________________________________________________________________________2 Addition of 2.1 parts by weight of mercaptopropyltrimethoxysilane and dropwise addition of a solution containing 7.4 parts by weight of azobisisobutyronitrile as a polymerization initiator over a period of 6 hours.
- Neostan U-300 (dibutyltin oxide)
- Neostan U-300 (dibutyltin oxide) was compounded in place of No. 918 (reacted product of dibutyltin oxide and phthalic ester), and aluminum was added.
- the mixture was hermetically sealed in a cartridge coated with, and heat-cured for 3 days at 50 ° C. Thereafter, an experiment was performed in the same manner as in Example 1.
- Each of the curable compositions was allowed to stand for 24 hours in an environment of 23 ° C and 50% RH, and the results measured using a B-type viscometer (manufactured by Toki Sangyo Co., Ltd., BS rotor No. 7 lOrpm) were used as the initial values. After leaving it in a drier for 2 weeks at 23 ° C and 50% RH for 24 hours, adjust the liquid temperature to 23 ° C and measure the viscosity in the same manner. did. After storage, the initial value of Z was less than 1.3, and ⁇ was 1.3 or more.
- the obtained curable composition was measured for adhesion, storage stability, and touch dry time.
- adhesiveness JIS K 6850 Tensile shear bonding of rigid adherend
- various adherends shown in Table 4 were measured.
- the measurement of storage stability and dry time to the touch was performed in the same manner as in Example 1. Table 4 shows the results.
- polymerization of propylene oxide was carried out using glycerin as an initiator and a zinc hexacyanocobaltate catalyst to obtain polyoxypropylene triol.
- the isocyanate propyltrimethoxysilane was subjected to a kato-urethanation reaction, and the terminal was converted to a trimethoxysilyl group to obtain a polymer P1 having a molecular weight of 18,000.
- Toocyanate propyl trimethoxysilane is added to Toagosei UH2000 (molecular weight 11000, viscosity 14000mPa.s / 25.C, Tg -55 ° C / DSC, OHV 20mg-KOH / g-resin) to urethanize was performed to convert the terminal to a trimethoxysilyl group, thereby obtaining a polymer P2.
- Neostan U-220 dibutyltin diacetyl acetonate
- a curable composition was prepared in the same manner as in Example 10, except for changing the compounding substances and the compounding ratio as shown in Table 5.
- the curable composition of Example 10 had different dry-to-touch times depending on the processing conditions after production such as temperature and elapsed time, whereas the curable composition of Comparative Example In 5, the touch dry time was constant regardless of the temperature and elapsed time.
- the production stability was evaluated based on the touch drying time immediately after the production of the obtained curable composition.
- the evaluation was made as ⁇ when the touch dry time was 30 minutes or more and X when less than 30 minutes.
- the results are shown in Table 7.
- the curable composition of the present invention can be used as a one-part type or a two-part type as necessary, and can be suitably used as a one-part type.
- the curable composition of the present invention is suitably used as a sealing material, an adhesive, an adhesive, a coating material, a potting material and the like.
- the curable composition of the present invention is particularly preferably used for an adhesive, but can also be used for various buildings, automobiles, civil engineering, electric and electronic fields, and the like.
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- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Sealing Material Composition (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polymerization Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04771069A EP1650257B1 (en) | 2003-08-01 | 2004-07-30 | Curing composition and method for producing curing composition |
US10/566,477 US7781559B2 (en) | 2003-08-01 | 2004-07-30 | Curable composition and method for producing the same |
DE602004029051T DE602004029051D1 (de) | 2003-08-01 | 2004-07-30 | Härtende zusammensetzung und herstellungsverfahren dafür |
JP2005512520A JP4533842B2 (ja) | 2003-08-01 | 2004-07-30 | 硬化性組成物及び硬化性組成物の製造方法 |
US12/823,581 US8217130B2 (en) | 2003-08-01 | 2010-06-25 | Curable composition and method for producing the same |
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JP2003285322 | 2003-08-01 | ||
JP2003-285322 | 2003-08-01 | ||
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JP2003-311808 | 2003-09-03 |
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US10/566,477 A-371-Of-International US7781559B2 (en) | 2003-08-01 | 2004-07-30 | Curable composition and method for producing the same |
US12/823,581 Continuation US8217130B2 (en) | 2003-08-01 | 2010-06-25 | Curable composition and method for producing the same |
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WO2005012426A1 true WO2005012426A1 (ja) | 2005-02-10 |
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PCT/JP2004/010909 WO2005012426A1 (ja) | 2003-08-01 | 2004-07-30 | 硬化性組成物及び硬化性組成物の製造方法 |
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US (2) | US7781559B2 (ja) |
EP (2) | EP2093252B1 (ja) |
JP (1) | JP4533842B2 (ja) |
KR (1) | KR100709734B1 (ja) |
DE (1) | DE602004029051D1 (ja) |
TW (1) | TWI396711B (ja) |
WO (1) | WO2005012426A1 (ja) |
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- 2004-07-30 KR KR1020067000585A patent/KR100709734B1/ko active IP Right Grant
- 2004-07-30 EP EP04771069A patent/EP1650257B1/en not_active Expired - Fee Related
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006257405A (ja) * | 2005-02-15 | 2006-09-28 | Asahi Glass Co Ltd | 室温硬化性組成物 |
JP2008019300A (ja) * | 2006-07-11 | 2008-01-31 | Cemedine Co Ltd | 被塗装性に優れた硬化性組成物 |
JP2012072293A (ja) * | 2010-09-29 | 2012-04-12 | Toagosei Co Ltd | 硬化性組成物 |
JPWO2017057719A1 (ja) * | 2015-10-02 | 2018-08-02 | 株式会社カネカ | 硬化性組成物 |
JP2017160368A (ja) * | 2016-03-10 | 2017-09-14 | セメダイン株式会社 | 易剥離性一液湿気硬化型接着剤 |
JP2020037643A (ja) * | 2018-09-04 | 2020-03-12 | セメダイン株式会社 | 構造体の製造方法 |
JP7129002B2 (ja) | 2018-09-04 | 2022-09-01 | セメダイン株式会社 | 構造体の製造方法 |
CN112979955A (zh) * | 2020-05-12 | 2021-06-18 | 合肥中科合聚材料科技有限公司 | 含双硫键的硅氧烷,其制备方法及包含其的粘合剂组合物 |
CN112979955B (zh) * | 2020-05-12 | 2022-09-30 | 合肥中科合聚材料科技有限公司 | 含双硫键的硅氧烷,其制备方法及包含其的粘合剂组合物 |
Also Published As
Publication number | Publication date |
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JP4533842B2 (ja) | 2010-09-01 |
DE602004029051D1 (de) | 2010-10-21 |
US20100267898A1 (en) | 2010-10-21 |
JPWO2005012426A1 (ja) | 2007-09-27 |
US8217130B2 (en) | 2012-07-10 |
EP1650257B1 (en) | 2010-09-08 |
TWI396711B (zh) | 2013-05-21 |
EP2093252B1 (en) | 2012-05-16 |
US7781559B2 (en) | 2010-08-24 |
TW200505982A (en) | 2005-02-16 |
EP2093252A1 (en) | 2009-08-26 |
KR100709734B1 (ko) | 2007-04-19 |
US20060293456A1 (en) | 2006-12-28 |
EP1650257A4 (en) | 2007-10-24 |
KR20060037335A (ko) | 2006-05-03 |
EP1650257A1 (en) | 2006-04-26 |
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