The present invention provides curable compositions that are substantially free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst system comprising the combination of a carboxylic acid, an amino-containing adhesion promoter or a mixture of
The present invention provides curable compositions that are substantially free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst system comprising the combination of a carboxylic acid, an amino-containing adhesion promoter or a mixture of amine-containing adhesion promoters and an amino-containing siloxane. The combination of these materials accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.
대표청구항▼
1. A composition for forming a cured polymer composition comprising: (A) a polymer having at least a reactive silyl group;(B) a crosslinker or chain extender chosen from an alkoxysilane, an alkoxysiloxane, an oximosilane, an oximosiloxane, an enoxysilane, an enoxysiloxane, an aminosilane, a carboxys
1. A composition for forming a cured polymer composition comprising: (A) a polymer having at least a reactive silyl group;(B) a crosslinker or chain extender chosen from an alkoxysilane, an alkoxysiloxane, an oximosilane, an oximosiloxane, an enoxysilane, an enoxysiloxane, an aminosilane, a carboxysilane, a carboxysiloxane, an alkylamidosilane, an alkylamidosiloxane, an arylamidosilane, an arylamidosiloxane, an alkoxyaminosilane, an alkarylaminosiloxane, an alkoxycarbamatosilane, an alkoxycarbamatosiloxane, and combinations of two or more thereof;(C) a carboxylic acid component in an amount of from about 0.01 to 7 pt. wt. per 100 pt. wt. of component (A);(D) at least one amino-containing adhesion promoter of a silane other than the compounds listed under (B) in an amount of from about 0.1 to about 5 pt. wt. per 100 pt. wt. of component (A);(E) an amino-functional siloxane other than the compounds listed under (B) in an amount of about 0.1 to about 5 pt. wt. per 100 pt. wt of component (A); and(F) optionally a filler component, wherein the composition is substantially free of a metal-based catalyst. 2. The composition of claim 1, wherein the carboxylic acid component (C) comprises an aliphatic carboxylic acid. 3. The composition of claim 1, wherein the carboxylic acid component comprises a branched alkyl C4-C30-alkyl carboxylic acid. 4. The composition of claim 1, wherein the carboxylic acid component comprises a C5-C30 carboxylic acid with alpha tertiary carbon. 5. The composition of claim 1, wherein the carboxylic acid is chosen from propanoic acid, 2-methyl propanoic acid, butanoic acid, pentanoic acid (valeric acid), hexanoic acid (caproic acid), 2-ethylhexanoic acid, heptanoic acid (enanthic acid), octanoic acid (caprylic acid), oleic acid, linoleic acid, linolenic acid, cyclohexanecarboxylic acid, cyclohexylacetic acid, cyclohexenecarboxylic acid, benzoic acid, benzeneacetic acid, propanedioic acid (malonic acid), butanedioic acid (succinic acid), hexanedioic acid (adipic acid), 2-butenedioic acid (maleic acid), lauric acid, stearic acid, myristic acid, palmitic acid, isoanoic acid, or a combination of two or more thereof. 6. The composition of claim 1 comprising component (C) in an amount of from about 1.0 to 7 pt. wt. per 100 pt. wt. of component (A). 7. The composition of claim 1 comprising component (C) in an amount of from about 0.2 to 0.4 pt. wt. per 100 pt. wt. of component (A). 8. The composition of claim 1, wherein the component (D) is chosen from N-(2-aminoethyl)aminopropyltrimethoxysilane gamma-aminopropyltriethoxysilane, gamma-aminopropyltrimethoxysilane, bis(gamma-trimethoxysilylpropyl)amine, N-phenyl-gamma-aminopropyltrimethoxysilane, triaminofuntionalltrimethoxysilane, gamma-aminopropyltrimethoxysilane, gamma-aminopropylmethyldiethoxysilane, N-phenyl-gamma-aminopropyltrimethoxysilane, omega-bis-(aminoalkyl-diethoxysilyl)-polyclimethylsiloxane having an average polymerization degree of (Pn=1-7), alpha, omega-bis-(aminoalkyl-cliethoxysilyl)-octa-methyltetrasiloxane, 4-amino-3,3,-dimethyl-butyl-tri-methoxysilane, and N-ethyl-3-tri-methoxy-silyl-2-methylpropanamine, 3-(diethyl-aminopropyl)-trimethoxysilane or a combination of two or more thereof. 9. The composition of claim 1, wherein the amino-containing adhesion promoter is chosen from gamma-(2-aminoethyl)aminopropyltrimethoxysilane gamma-aminopropyltriethoxysilane, gamma-aminopropyltrimethoxysilane, bis(gamma-trimethoxysilypropyl)amine, N-phenyl-gamma-aminopropyltrimethoxysilane, triaminofunctionaltrimethoxysilane, gamma-aminopropylmethyldimethoxysilane, gamma-aminopropylmethyldiethoxysilane, omega-bis-(aminoalkyl-diethoxysilyl)-polyclimethylsiloxanes having an average polymerization degree of (Pn=1-7), alpha, omega-bis-(aminoalkyl-diethoxysilyl)-octa-methyltetrasiloxane, 4-amino-3, 3,-dimethyl-butyl-tri-methoxysilane, N-ethyl-3-tri-methoxy-silyl-2-methylpropanamine, 3-(diethyl-aminopropyl)-trimethoxysilane, or a combination of two or more thereof. 10. The composition of claim 1 comprising from about 0.1 to about 5 pt. wt. of amino-containing adhesion promoter (D) per 100 pt. wt of component (A). 11. The composition of claim 1 comprising an amino-functional siloxane chosen from (2-aminoethyl)methylpolysiloxane, (3-aminopropyl)methylpolysiloxane, (2 -aminoethyl-3-aminopropyl)methylpolysiloxane, (3-(2-aminoethoxy)propyl)methylpolysiloxane, (6-aminohexyl)methylpolysiloxane, (3-(2-aminoethoxy)propyl)methylpolysiloxane, (3-(2-aminoethylaminopropyl)methylsiloxane, dimethylsiloxane copolymers thereof, or a combination of two or more thereof. 12. The polymer composition of claim 1, wherein the polymer (A) has the formula (2) [R1aR23-aSi—Z—]n—X—Z—SiR1aR23-a (2) where X is chosen from a polyurethane; a polyester; a polyether; a polycarbonate; a polyolefin; a polypropylene; a polyesterether; and a polyorganosiloxane having units of R3SiO1/2, R2SiO, RSiO3/2, and/or SiO4/2, n is 0 to 100,a is 0 to 2,R and R1can be identical or different at the same Si-atom and chosen from a C1-C10-alkyl; a C1-C10 alkyl substituted with one or more of Cl, F, N, O or S; a phenyl; a C7-C16 alkylaryl; a C7-C16 arylalkyl; a C2-C4 polyalkylene ether; or a combination of two or more thereof,R2 is chosen from OH, a C1-C8-alkoxy, a C2-C18-alkoxyalkyl, an oximoalkyl, an enoxyalkyl, an aminoalkyl, a carboxyalkyl, an amidoalkyl, an amidoaryl, a carbamatoalkyl, or a combination of two or more thereof, andZ is a bond, a divalent unit selected from the group of a C1-C8 alkylene, or O. 13. The composition of claim 1 wherein the crosslinker component (B) is chosen from tetraethylorthosilicate (TEOS); a polycondensate of TEOS; methyltrimethoxysilane (MTMS); vinyl-trimethoxysilane; methylvinylclimethoxysilane; dimethylcliethoxysilane; vinyltriethoxysilane; tetra-n -propylorthosilicate; vinyltris(methylethylketoxime)silane; methyltris(methylethylketoxime)silane; trisacetamidomethylsilane; bisacetamidoclimethylsilane; tris(N-methyl-acetamido)methylsilane; bis(N-methylacetamido)dimethylsilane; (N-methyl-acetamido)methyldialkoxysilane; trisbenzamidomethylsilane; trispropenoxymethylsilane; alkyldialkoxyamidosilanes; alkylalkoxybisamidosilanes; CH3Si(OC2H5)1-2(NHCOR)2-1; (CH3Si(OC2H5)(NCH3COC6H5)2; CH3Si(OC2H5)—(NHCOC6H5)2; methyldimethoxy(ethylmethylketoximo)silane; methylmethoxybis-(ethylmethylketoximo)silane; methyldimethoxy(acetaldoximo)silane; methyldimethoxy(N-methylcarbamato)silane; ethyldimethoxy(N-methylcarbamato)silane; methyldimethoxyisopropenoxysilane; trimethoxyisopropenoxysilane; methyltri-iso-propenoxysilane; methyldimethoxy(but-2-ene-2-oxy)silane; methyldimethoxy(1-phenylethenoxy)silane; methyldimethoxy-2(1-carboethoxypropenoxy)silane; methylmethoxydi-N-methylaminosilane; vinyldimethoxymethylaminosilane; tetra-N,N-diethylaminosilane; methyldimethoxymethylaminosilane; methyltricyclohexylaminosilane; methyldimethoxyethylaminosilane; dimethyldi-N,N-dimethylaminosilane; methyldimethoxyisopropylaminosilane; dimethyldi-N,N-diethylaminosilane; ethyldimethoxy(N-ethylpropionamido)silane; methyldimethoxy(N-methylacetamido)silane; methyltris(N-methylacetamido)silane; ethyldimethoxy(N-methylacetamido)silane; methyltris(N-methylbenzamido)silane; methylmethoxybis(N-methylacetamido)silane; methyldimethoxy(caprolactamo)silane; trimethoxy(N-methylacetamido)silane; methyldimethoxyethylacetimidatosilane; methyldimethoxypropylacetimidatosilane; methyldimethoxy(N,N′,N′-trimethylureido)silane; methyldimethoxy(N-allyl-N′,N′-dimethylureido)silane; methyldimethoxy(N-phenyl-N′,N′-dimethylureido)silane; methyldimethoxyisocyanatosilane; dimethoxydiisocyanatosilane.; methyldimethoxythioisocyanatosilane; methylmethoxyclithioisocyanatosilane, or a combination of two or more thereof. 14. The composition of claim 1, comprising about 1 to about 10 wt. % of the crosslinker component (B) based on 100 wt. % of the polymer component (A). 15. The composition of claim 1, wherein the cross-linker component (B) is chosen from a silane or a siloxane, the silane or siloxane having two or more reactive groups that can undergo hydrolysis and/or condensation reaction with polymer (A) or on its own in the presence of water and component (F). 16. The composition of claim 1, wherein the polymer component (A) is chosen from a polyorganosiloxane comprising divalent units of the formula [R2SiO] in the backbone, wherein R is chosen from a C1-C10-alkyl; a C1-C10 alkyl substituted with one or more of Cl, F, N, O or S; a phenyl; a C7-C16 alkylaryl; a C7-C16 arylalkyl; a C2-C4 polyalkylene ether; or a combination of two or more thereof. 17. The polymer composition of claim 16 wherein the polymer component (A) has the formula (3): R23-aR1aSi—Z—[R2SiO]x[R12SiO]y—Z—SiR1aR23-a (3) whereby x is 0 to 10000;y is 0 to 1000;a is 0 to 2;R is methyl;R1 is chosen from a C1-C10-alkyl; a C1-C10alkyl substituted with one or more of Cl, F, N, O or S; a phenyl; a C7-C16 alkylaryl; a C7-C16 arylalkyl; a C2-C4 polyalkylene ether; or a combination of two or more thereof, and other siloxane units may be present in amounts less than 10 mol. %;R2 is chosen from OH, a C1-C8-alkoxy, a C2-C18-alkoxyalkyl, an oximoalkyl, an enoxyalkyl, an aminoalkyl, a carboxyalkyl, an amidoalkyl, an amidoaryl, a carbamatoalkyl, or a combination of two or more thereof, andZ is —-O—, bond, or —C2H4—. 18. The composition of claim 1, wherein the composition is provided as a one part composition. 19. The composition of claim 1, wherein the composition is provided as a two part composition comprising a first portion (P1) and a second portion (P2). 20. The composition of claim 1 comprising: 100 pt. wt of component (A),0.1 to about 10 pt. wt of at least one crosslinker (B),0.01 to about 7 pt. wt. of a carboxylic acid (C),0.1 to about 5 pt. wt. of an amino-containing adhesion promoter (D),0.1 to about 5 pt. wt. of an amino-functional siloxane (E),0 to about 300 pt. wt of component (F),0.01to about 8 pt. wt. of a component (G) chosen from a plasticizer, pigment, stabilizer, antimicrobial, fungicide, biocide, solvent, water, or a combination of two or more thereof,whereby this composition can be stored in the absence of humidity and is curable in the presence of humidity upon exposure to ambient air. 21. The composition of claim 1, wherein the composition is substantially free of a metal catalyst, a metal-based catalyst, or both. 22. A method of providing a cured material comprising exposing the composition of claim 1 to ambient air. 23. A method of providing a cured material comprising combining the first portion and the second portion of claim 19 and curing the mixture. 24. The cured polymer material of claim 23 in the form of an elastomeric or duromeric seal, an adhesive, a coating, an encapsulant, a shaped article, a mold, and an impression material. 25. A cured polymer material formed from the composition of claim 1.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (73)
Lucas Gary M. (Scotia NY) Dziark John J. (Ballston Spa NY), Adhesion promoters for one-component RTV silicone compositions.
Pouchelon, Alain; Quemin, Maryline; Lafaysse, Francis, Composition based on silicone oils that can be crosslinked into elastomers for the impregnation treatment of fibrous materials.
Leung Siusun K. (Leedon Court WV SGX) Critchfield Frank E. (South Charleston WV) Westfall Paul M. (St. Albans WV), Flexible polyurethane foams using chlorinated alkanes.
Hiriart Bodin Jean-Michel (St. Jean de Luz FRX) Lahournere Irubetagoyena Jean-Claude (St. Jean de Luz FRX), Introduced in processes for the manufacture of silicon-based curable compositions.
Dumoulin Jean (Rhone FR) Linguenheld Louis (Rhone FR), Method of rendering a substrate non-stick towards tacky substances by coating the substrate with an organosilicon compos.
Roesler, Richard R.; Crawford, Derek L.; Frisch, Kurt C.; Pethiyagoda, Dinesh; Danielmeier, Karsten, Moisture-curable, polyether urethanes with reactive silane groups and their use as sealants, adhesives and coatings.
Staiger Gerhard (Altoetting DEX) Braun Rudolf (Kastl DEX) Mueller Johann (Burghausen DEX) Stepp Michael (Burghausen DEX) Brennenstuhl Werner (Burgkirchen DEX) Absmaier Petra (Emmerting DEX), Organo(poly)siloxanes containing terminal siloxane units having organyloxy and hydrogen groups.
Frances Jean-Marc (Villeurbanne FRX) Leising Frederic (Mornant FRX), Organopolysiloxane composition containing a cyclopentenyl radical and crosslinkable to give an elastomer.
Horikoshi, Jun; Kimura, Tsuneo, RTV silicone rubber composition for electric and electronic part protection, circuit boards, silver electrodes, and silver chip resistors.
Maliverney, Christian; Saint-Jalmes, Laurent, Room temperature vulcanizable organopolysiloxane compound to give an elastomer and novel organopolysiloxane polycondensation catalysts.
Maliverney, Christian; Saint-Jalmes, Laurent, Room-temperature vulcanisable organopolysiloxane compound to give an elastomer and novel organopolysiloxane polycondensation catalysts.
Maliverney, Christian; Saint-Jalmes, Laurent, Room-temperature vulcanizable organopolysiloxane compound to give an elastomer and novel organopolysiloxane polycondensation catalysts.
Friebe Robert,DEX ; Sattlegger Hans,DEX ; Sockel Karl-Heinz,DEX ; Weber Wilhelm,DEX ; Wilms Axel,DEX, Tin catalysts, a process for their production, their use and cross-linkable mixtures containing them.
Giroux, Donald J.; Pauze, Robert H.; Schuft, Charles F., Two-part, room temperature curable epoxy resin/ (meth)acrylate compositions and process for using same to bond substrates.
Lawrey Bruce D. ; Seneker Stephen D. ; Barksby Nigel, Viscosity-stable isocyanate-terminated prepolymers and polyoxyalkylene polyether polyols having improved storage stabil.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.