US5200440A
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Organosilicone-treated silica and a composition containing it
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1990-10-31
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Granted: 1993-04-06
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Expires: 2010-10-31
Abstract
Abstract An organosilicone-treated silica obtained by treating (A) a silica powder having a specific surface area of at least 50 m2/g with (B) a triorgano(1-alkoxyvinyloxy)silane having the formula (I): <IMAGE> (I) wherein R1 is a monovalent hydrocarbon group or an ether linkage-containing organic group, and R2 are each a substituted or unsubstituted monovalent hydrocarbon group or an ether linkage-containing organic group. The invention also discloses an organopolysiloxane composition containing the organosilicone-treated silica and a process preparing the composition. The organosilicone-treated silica is of high quality, containing no substance with disagreeable smell or corrosiveness which has been by-produced heretofore. Hence, the composition containing the silica is free from pseudocrosslinking such as structuring or crepe hardening.
Inventors
- 👤 Toshio Takago
- 👤 Hiroshi Inomata
- 👤 Shinichi Sato
- 👤 Hitoshi Kinami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:25
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/28; C09C1/30; C09C1/3081; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C01; C01P; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
101 words
An organosilicone-treated silica obtained by treating (A) a silica powder having a specific surface area 5 of at least 50 m 2 /g with (B) a triorgano(1-alkoxyvinyloxy)silane having the formula (I): ##STR21## wherein R 1 is a monovalent hydrocarbon group of from 1 to 8 carbon atoms or an ether linkage-containing organic group having from 1 to 8 carbon atoms, and three R 2 's may be the same or different and are each a substituted or unsubstituted monovalent hydrocarbon group of from 1 to 18 carbon atoms or an ether linkage-containing organic group having from 1 to 18 carbon atoms.
Claim 2
Dependent Claim
101 words
An organosilicone-treated silica obtained by treating (A) a silica powder having a specific surface area 5 of at least 50 m 2 /g with (B) a triorgano(1-alkoxyvinyloxy)silane having the formula (I): ##STR21## wherein R 1 is a monovalent hydrocarbon group of from 1 to 8 carbon atoms or an ether linkage-containing organic group having from 1 to 8 carbon atoms, and three R 2 's may be the same or different and are each a substituted or unsubstituted monovalent hydrocarbon group of from 1 to 18 carbon atoms or an ether linkage-containing organic group having from 1 to 18 carbon atoms.
Claim 3
Dependent Claim
32 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is used in an amount of from 0.5 to 100 parts by weight per 100 parts by weight of said (A) silica.
Claim 4
Dependent Claim
32 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is used in an amount of from 10 to 50 parts by weight per 100 parts by weight of said (A) silica.
Claim 5
Dependent Claim
41 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is represented by said formula (I) wherein said R 1 is a group selected from the group consisting of alkyl groups, aliphatic or alicyclic unsaturated hydrocarbon groups and aromatic hydrocarbon groups.
Claim 6
Dependent Claim
35 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is represented by said formula (I) wherein said R 1 is a group selected from the group consisting of the methoxyethyl, ethoxyethyl, and allyloxyethyl groups.
Claim 7
Dependent Claim
32 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is represented by said formula (I) wherein said R 2 is a monovalent hydrocarbon group having from 1 to 18 carbon atoms.
Claim 8
Dependent Claim
73 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is represented by said formula (I) wherein said R 2 is a group selected from the groups represented by the following formulas: C.sub.p F.sub.2p+1 CH.sub.2 CH.sub.2 -- wherein p is an integer of from 1 to 12, ##STR22## wherein c in an integer of from 1 to 5, ##STR23## wherein c is as defined above, and ##STR24## wherein c is as defined above.
Claim 9
Dependent Claim
42 words
The organosilicone-treated silica of claim 1, wherein said (B) triorgano(1-alkoxyvinyloxy)silane is represented by said formula (I) wherein R 1 is the methyl group, the ethyl group or a propyl group, and said R 2 is the methyl group or the vinyl group.
Claim 10
Dependent Claim
165 words
An organopolysiloxane composition comprising: (a) an organopolysiloxane having the general compositon formula (II): ##EQU3## wherein R 3 is a substituted or unsubstituted monovalent hydrocarbon group of from 1 to 10 carbon atoms, a is a number of from 1.90 to 3.0, and b is a number of from 0 to 1.0, provided that a+b is in the range of from 1.90 to 3.0, and (b) an organosilicone-treated silica obtained by treating (A) a silica powder having a specific surface area of at least 50 m 2 /g with (B) a triorgano(1-alkoxyvinyloxy)silane having the formula (I): ##STR25## wherein R 1 is a monovalent hydrocarbon group of from 1 to 8 carbon atoms or an ether linkage-containing organic group having from 1 to 8 carbon atoms, and three R 2 's may be the same or different and are each a substituted or unsubstituted monovalent hydrocarbon group of from 1 to 18 carbon atoms or an ether linkage-containing organic group having from 1 to 18 carbon atoms.
Claim 11
Dependent Claim
165 words
An organopolysiloxane composition comprising: (a) an organopolysiloxane having the general compositon formula (II): ##EQU3## wherein R 3 is a substituted or unsubstituted monovalent hydrocarbon group of from 1 to 10 carbon atoms, a is a number of from 1.90 to 3.0, and b is a number of from 0 to 1.0, provided that a+b is in the range of from 1.90 to 3.0, and (b) an organosilicone-treated silica obtained by treating (A) a silica powder having a specific surface area of at least 50 m 2 /g with (B) a triorgano(1-alkoxyvinyloxy)silane having the formula (I): ##STR25## wherein R 1 is a monovalent hydrocarbon group of from 1 to 8 carbon atoms or an ether linkage-containing organic group having from 1 to 8 carbon atoms, and three R 2 's may be the same or different and are each a substituted or unsubstituted monovalent hydrocarbon group of from 1 to 18 carbon atoms or an ether linkage-containing organic group having from 1 to 18 carbon atoms.
Claim 12
Dependent Claim
33 words
The organopolysiloxane composition of claim 9, wherein said (b) organosilicone-treated silica is present in an amount of from 1 to 100 parts by weight per 100 parts by weight of said (a) organopolysiloxane.
Claim 13
Dependent Claim
72 words
A process of preparing an organopolysiloxane composition claimed in claim 9, comprising the step of kneading a mixture comprising: 100 parts by weight of the (a) organopolysiloxane having said general formula (II), from 10 to 100 parts by weight of said (A) silica powder with a specific surface area of at least 50 m 2 /g, and from 0.1 to 200 parts by weight of said (B) triorgano(1-alkoxyvinyloxy)silane having said formula (I).
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