Curable silicone compositions

The invention relates to a curable composition, containing (A) at least one polyorganosiloxane, which has at least one hydroxy group bound to a silicon atom, (B) at least one silane of the formula (1): Si(R1)m(R2)n(R3)4−(m+n) (1), as defined herein, (C) at least one aminosilane, and (D) at least one tin compound, wherein the composition is free of epoxysilane and the molar ratio of the aminosilane to the tin compound is 1:1 to 50:1, as well as to the preparation and use thereof.

Silanes and curable compositions comprising said silanes

The invention relates to silane compounds having the general formula (I): SiR1n(R2)4-n (I), as defined herein, to a method for preparing the silane compounds and use thereof as crosslinker or as adhesion promoter and to a curable composition comprising a reaction product of the at least one silane compound, at least one polyorganosiloxane, and at least one catalyst, and use thereof.

Curable silicone compositions

The invention relates to a curable composition, containing (A) at least one polyorganosiloxane, which has at least one hydroxy group bound to a silicon atom, (B) at least one silane of the formula (1): Si(R1)m(R2)n(R3)4-(m+n) (1), as defined herein, (C) at least one aminosilane, and (D) at least one tin compound, whereby the molar ratio of the aminosilane to the tin compound is 1:1 to 50:1, as well as to the preparation and use thereof.

Curable Silicone Compositions

The invention relates to a curable composition, containing 2. The curable composition according to claim 1 , wherein the molar ratio of the aminosilane to the tin compound is 10:1 to 40:1.3. The curable composition according to claim 1 , wherein the polyorganosiloxane which has at least one hydroxy group bound to a silicon atom is a polydiorganosiloxane which has at least one terminal hydroxy groups.4. The curable composition according to claim 1 , wherein the polyorganosiloxane claim 1 , which has at least one hydroxy group bound to a silicon atom is an α claim 1 ,ω-dihydroxy-terminated polydimethylsiloxane.5. The curable composition according to claim 1 , wherein the silane is a silane of the formula (1) claim 1 , where{'sup': '1', 'each Rindependently of one another stands for an alkyl group having 1 to 10 carbon atoms, for an alkenyl group having 2 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms, and/or'}{'sup': 2', '4', '4', '5, 'each Rindependently of one another stands for a group of the formula (2), where one of the Rgroups stands for hydrogen and the second Rgroup stands for hydrogen or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, and Rstands for a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.'}6. The curable composition according to claim 1 , wherein the silane is a silane of the formula (1) claim 1 , where the sum n+m is 4.7. The curable composition according to claim 1 , wherein the silane of the formula (1) is selected from methyl tris(ethyl lactato)silane claim 1 , ethyl tris(ethyl lactato)silane claim 1 , phenyl tris(ethyl lactato)silane claim 1 , vinyl tris(ethyl lactato)silane claim 1 , tetra(ethyl lactato)silane claim 1 , and mixtures thereof.8. The curable composition according to claim 1 , wherein the silane is a silane of the formula (1) claim 1 , wherethe sum n+m is a maximum of 3 and{'sup': 3', '6', '6', '7', '8', '10', '11', '12, 'sub': 2', 'p, 'each Rindependently of one ...

Curable Silicone Compositions

The invention relates to a curable composition, containing 2. The curable composition according to claim 1 , wherein the molar ratio of the aminosilane to the tin compound is 10:1 to 40:1.3. The curable composition according to claim 1 , wherein the polyorganosiloxane which has at least one hydroxy group bound to a silicon atom is a polydiorganosiloxane which has at least one terminal hydroxy groups.4. The curable composition according to claim 1 , wherein the polyorganosiloxane claim 1 , which has at least one hydroxy group bound to a silicon atom is an α claim 1 ,ω-dihydroxy-terminated polydimethylsiloxane.5. The curable composition according to claim 1 , wherein the silane is a silane of the formula (1) claim 1 , where{'sup': '1', 'each Rindependently of one another stands for an alkyl group having 1 to 10 carbon atoms, for an alkenyl group having 2 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms, and/or'}{'sup': 2', '4', '4', '5, 'each Rindependently of one another stands for a group of the formula (2), where one of the Rgroups stands for hydrogen and the second Rgroup stands for hydrogen or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, and Rstands for a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.'}6. The curable composition according to claim 1 , wherein the silane is a silane of the formula (1) claim 1 , where the sum n+m is 4.7. The curable composition according to claim 1 , wherein the silane of the formula (1) is selected from methyl tris(ethyl lactato)silane claim 1 , ethyl tris(ethyl lactato)silane claim 1 , phenyl tris(ethyl lactato)silane claim 1 , vinyl tris(ethyl lactato)silane claim 1 , tetra(ethyl lactato)silane claim 1 , and mixtures thereof.8. The curable composition according to claim 1 , wherein the silane is a silane of the formula (1) claim 1 , wherethe sum n+m is a maximum of 3 and{'sup': 3', '6', '6', '7', '8', '10', '11', '12, 'sub': 2', 'p, 'each Rindependently of one ...

ENCAPPED CURABLE POLYORGANOSILOXANES

The invention relates to curable polyorganosiloxanes with special silicon-containing terminal groups and curable compositions based on these polyorganosiloxanes, a special capped adhesion promoter, and a curing catalyst. These compositions have improved adhesion properties and excellent storage stability. The invention also relates to the use thereof.

Silanes and Curable Compositions Comprising Said Silanes

The invention relates to silane compounds having the general formula (I): SiR(R)(I), as defined herein, to a method for preparing the silane compounds and use thereof as crosslinker or as adhesion promoter and to a curable composition comprising a reaction product of the at least one silane compound, at least one polyorganosiloxane, and at least one catalyst, and use thereof. 1. A silane compound having the general formula (I){'br': None, 'sup': 1', '2, 'sub': n', '4-n, 'SiR(R)\u2003\u2003(I)'}{'sup': '1', 'claim-text': [{'br': None, 'sub': '2', 'sup': 3', '3, '—OCH(CHCOOR)COXR\u2003\u2003(II)'}, 'wherein', 'X is O or N, and', {'sup': 3', '3, 'each Ris same or different and is, independently of one another, selected from the group consisting of substituted or unsubstituted, linear or branched alkyl radicals having from 1 to 22 carbon atoms, aryl radicals having from 6 to 16 carbon atoms, and cycloalkyl radicals having from 5 to 27 carbon atoms, where Rmay contain at least one heteroatom selected from O, N, Sand/or Si;'}], 'wherein each Ris same or different and is, independently of one another, selected from radicals having the general formula (II)'}{'sup': '2', 'each Ris same or different and is, independently of one another, selected from the group consisting of a hydrogen atom, a hydroxyl group, substituted or unsubstituted monovalent hydrocarbon radicals having from 1 to 18 carbon atoms, and alkoxy radicals having from 1 to 8 carbon atoms; and'}n is 2, 3, or 4.2. The silane compound according to claim 1 , wherein Ris selected from the group consisting of linear or branched alkyl radicals having from 1 to 22 carbon atoms and cycloalkyl radicals having from 5 to 27 carbon atoms.3. The silane compound according to claim 1 , wherein Ris selected from the group consisting of a methyl claim 1 , ethyl claim 1 , propyl claim 1 , and n-butyl radical.4. The silane compound according to claim 1 , wherein n is 3 or 4.5. A method for preparing the silane compound having the ...

Curable silicone compositions

Die Erfindung betrifft eine härtbare Zusammensetzung, enthaltend (A) mindestens ein Polyorganosiloxan, das mindestens eine, an ein Siliziumatom gebundene, Hydroxygruppe aufweist, (B) mindestens ein Silan der Formel (1): Si(R1)m(R2)n(R3)4-(m+n) (1),wie hierin definiert, (C) mindestens ein Aminosilan, und (D) mindestens eine Zinnverbindung, wobei das Molverhältnis von Aminosilan zu Zinnverbindung 1:1 bis 50:1 beträgt, sowie deren Herstellung und Verwendung.

Silanes and curable compositions comprising said silanes

The invention relates to silane compounds having the general formula (I): SiR 1 n (R 2 ) 4-n (I), as defined herein, to a method for preparing the silane compounds and use thereof as crosslinker or as adhesion promoter and to a curable composition comprising a reaction product of the at least one silane compound, at least one polyorganosiloxane, and at least one catalyst, and use thereof.

Endcapped curable polyorganosiloxanes

The invention relates to curable polyorganosiloxanes with special silicon-containing terminal groups and curable compositions based on these polyorganosiloxanes, a special capped adhesion promoter, and a curing catalyst. These compositions have improved adhesion properties and excellent storage stability. The invention also relates to the use thereof.

Silanes and curable compositions comprising said silanes

The invention relates to silane compounds having the general formula (I): SiR 1 n (R 2 ) 4-n (I), as defined herein, to a method for preparing the silane compounds and use thereof as crosslinker or as adhesion promoter and to a curable composition comprising a reaction product of the at least one silane compound, at least one polyorganosiloxane, and at least one catalyst, and use thereof.

Curable silicone compositions

The invention relates to a curable composition containing (A) at least one polyorganosiloxane which comprises at least one hydroxy group bound to a silicon atom, (B) at least one silane of formula (1): Si(R1)m(R2)n(R3)4-(m+n), as defined herein, (C) at least one amino silane, and (D) at least one tin compound, the molar ratio of amino silane to tin compound being 1 : 1 - 50 : 1. The invention also relates to a method for the use thereof.

Silanes and curable compositions comprising said silanes

The invention relates to silane compounds having the general formula (I): SiR1n (R 2 ) 4-n (I), as defined herein, to a method for preparing the silane compounds and use thereof as crosslinker or as adhesion promoter and to a curable composition comprising a reaction product of the at least one silane compound, at least one polyorganosiloxane, and at least one catalyst, and use thereof.

Silanes and curable compositions comprising said silanes

Un compuesto de silano que tiene la fórmula general (I) SiR1n(R2)4-n (I) en la que cada R1 es idéntico o diferente y es, independientemente el uno del otro, seleccionado entre radicales que tienen la fórmula general (II) -OCH(CH2COOR3)COXR3 (II) en la que X es O o N, y cada R3 es idéntico o diferente y es, independientemente el uno del otro, seleccionado entre el grupo que consiste en radicales alquilo lineales o ramificados, sustituidos o no sustituidos que tienen de 1 a 22 átomos de carbono, radicales arilo que tienen de 6 a 16 átomos de carbono y radicales cicloalquilo que tienen de 5 a 27 átomos de carbono, en la que R3 puede contener al menos un heteroátomo seleccionado entre O, N, S y/o Si; cada R2 es idéntico o diferente y es, independientemente el uno del otro, seleccionado entre el grupo que consiste en un átomo de hidrógeno, un grupo hidroxilo, radicales hidrocarburos monovalentes sustituidos o no sustituidos que tienen de 1 a 18 átomos de carbono y radicales alcoxi que tienen de 1 a 8 átomos de carbono; y n es 2, 3, o 4. A silane compound having the general formula (I) SiR1n (R2) 4-n (I) in which each R1 is identical or different and is, independently of each other, selected from radicals having the general formula (II ) -OCH (CH2COOR3) COXR3 (II) in which X is O or N, and each R3 is identical or different and is, independently of each other, selected from the group consisting of linear or branched alkyl radicals, substituted or unsubstituted having 1 to 22 carbon atoms, aryl radicals having 6 to 16 carbon atoms and cycloalkyl radicals having 5 to 27 carbon atoms, in which R3 may contain at least one heteroatom selected from O, N, S and / or Yes; each R2 is identical or different and is, independently of each other, selected from the group consisting of a hydrogen atom, a hydroxyl group, substituted or unsubstituted monovalent hydrocarbon radicals having 1 to 18 carbon atoms and alkoxy radicals having 1 to 8 carbon atoms; and n is 2, 3, or 4.

Silanes and curable compositions containing them

The present invention relates to novel silanes of the formula Si(R1)m(R2)4-m, wherein each R1 independently stands for a substituted or unsubstituted alkyl, alkenyl, or alkynyl group; a substituted or unsubstituted cycloaliphatic group or aryl group; a substituted or unsubstituted heteroalicyclic group or heteroaryl group; each R2 independently stands for a group of the general formula -O-CHR3-C(=O)-O- R4, wherein R3 independently stands for: a substituted or unsubstituted alkenyl group, preferably vinyl or allyl group; R4 stands for: a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl or heteroaryl group; and m independently stands for 0 or 1, preferably 1. The invention also relates to curable compositions containing said silane and a curable polyorganosiloxane endcapped with such silanes. The silane acts as a crosslinker in the curable compositions and is notable particularly for being obtainable from renewable resources, providing for a high overall performance..

Curable silicone compositions containing additives

The invention relates to curable compositions based on polyorganosiloxanes with silicon-containing terminal groups, a polymer having at least one silane-functional group, and optionally at least one curing catalyst. The invention also relates to adhesive, sealant, and/or coating materials comprising said composition and the use of said composition.

Silanes and curable compositions containing them

The present invention relates to novel silanes of the formula Si(R 1 ) m (R 2 ) 4-m , wherein each R 1 independently stands for a substituted or unsubstituted alkyl, alkenyl, or alkynyl group; a substituted or unsubstituted cycloaliphatic group or aryl group; a substituted or unsubstituted heteroalicyclic group or heteroaryl group; each R 2 independently stands for a group of the general formula -O-CHR 3 -C(=O)-OR 4 , wherein R 3 independently stands for: a substituted or unsubstituted alkenyl group, preferably vinyl or allyl group; R 4 stands for: a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl or heteroaryl group; and m independently stands for 0 or 1, preferably 1. The invention also relates to curable compositions containing said silane and a curable polyorganosiloxane endcapped with such silanes. The silane acts as a crosslinker in the curable compositions and is notable particularly for being obtainable from renewable resources, providing for a high overall performance.

Utwardzalne poliorganosiloksany zabezpieczone końcowo

Poliorganosiloxanos curables con grupos terminales protegidos

La invención se refiere a poliorganosiloxanos curables con grupos terminales especiales que contienen silicio y a composiciones curables basadas en estos poliorganosiloxanos, un promotor de adhesión protegido especial y un catalizador de curado. Estas composiciones tienen propiedades de adhesión mejoradas y una excelente estabilidad en almacenamiento. La invención también se refiere a su uso. (Traducción automática con Google Translate, sin valor legal)

Curable silicone compositions containing additives

The invention relates to curable compositions based on polyorganosiloxanes with silicon-containing terminal groups, a polymer having at least one silane-functional group, and optionally at least one curing catalyst. The invention also relates to adhesive, sealant, and/or coating materials comprising said composition and the use of said composition.

Curable silicone compositions containing additives

The invention relates to curable compositions based on polyorganosiloxanes with special silicon-containing terminal groups, a curing catalyst, and a polymer having at least one silane-functional group. The invention also relates to adhesive, sealant, and/or coating materials comprising said composition and the use of said composition.

Encapped curable polyorganosiloxanes

The invention relates to curable polyorganosiloxanes with special silicon-containing terminal groups and curable compositions based on these polyorganosiloxanes, a special capped adhesion promoter, and a curing catalyst. These compositions have improved adhesion properties and excellent storage stability. The invention also relates to the use thereof.