Patent EP0069451B1 successfully refreshed from Google Patents.
EP0069451B1
Expired / Lapsed
EP
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Low temperature silicone gel
Assignee: Dow Silicones Corp
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Filing: 1982-05-18
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Granted: 1986-09-10
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Expires: 2002-05-18
Abstract
No abstract record available.
Inventors
- 👤 Paul L. Brown
- 👤 Chi-Long Lee
- 👤 Myron Timothy Maxson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 05:41
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/045; C08G77/12; C08G77/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
143 words
A curable siloxane composition comprising an intimate mixture consisting essentially of: (1) a polyorganosiloxane characterized in that it consists essentially of 80 to 96.5 mol % of (CH 3 ) 2 SiO, 2.0 to 10.0 mol % of CH 3 SiO 1.5 , 1.25 to 6.0 mol % of (CH 3 ) 3 SiO 0.5 , and 0.25 to 4.0 mol % of (CH 3 ) 2 (CH Z =CH)SiO 0.5 ; (2) an organohydrogensiloxane having an average of more one silicon-bonded hydrogen atom per molecule and no more than one silicon-bonded hydrogen atom per silicon atom and organic radicals selected from the group consisting of alkyl radicals having from one to six carbon atoms per radical, phenyl and 3,3,3-trifluoropropyl, said organohydrogensiloxane providing an average of 0.2 to 5.0 moles of silicon-bonded hydrogen per mole of silicon-bonded vinyl; and (3) a platinum catalyst.
Claim 2
Dependent Claim
143 words
A curable siloxane composition comprising an intimate mixture consisting essentially of: (1) a polyorganosiloxane characterized in that it consists essentially of 80 to 96.5 mol % of (CH 3 ) 2 SiO, 2.0 to 10.0 mol % of CH 3 SiO 1.5 , 1.25 to 6.0 mol % of (CH 3 ) 3 SiO 0.5 , and 0.25 to 4.0 mol % of (CH 3 ) 2 (CH Z =CH)SiO 0.5 ; (2) an organohydrogensiloxane having an average of more one silicon-bonded hydrogen atom per molecule and no more than one silicon-bonded hydrogen atom per silicon atom and organic radicals selected from the group consisting of alkyl radicals having from one to six carbon atoms per radical, phenyl and 3,3,3-trifluoropropyl, said organohydrogensiloxane providing an average of 0.2 to 5.0 moles of silicon-bonded hydrogen per mole of silicon-bonded vinyl; and (3) a platinum catalyst.
Claim 3
Dependent Claim
63 words
The curable siloxane composition according to Claim 1 wherein the polyorganosiloxane consists essentially of 87 to 94 mole % of (CH 3 ) 2 SiO, 3 to 6 mol percent of CH 3 SiO 1.5 , 2.5 to 5 mol % of (CH 3 )3SiO 0.5 , and 0.5 to 2.0 mol % of (CH 3 ) 2 (CH 2 =CH)SiO 0.5 .
Claim 4
Dependent Claim
67 words
The curable siloxane composition according to Claim 2 wherein the polyorganosiloxane consists essentially of 92 to 94 mol % of (CH 3 ) 2 SiO, 3 to 4 mol % of CH 3 SiO 1.5 , 2.5 to 3 mol % of (CH 3 ) 3 SIO 1.5 , and 0.5 to 1 mol % of (CH 3 ) 2 (CH 2 =CH)SiO O . 5 .
Claim 5
Dependent Claim
39 words
The curable siloxane composition according to Claim 1, or 3, wherein the organohydrogensiloxane is H(CH 3 ) 2 Si[OSi(CH 3 ) 2 ] x Si(CH 3 ) 2 H, wherein x is within the range of 5 to 20.
Claim 6
Dependent Claim
58 words
The curable siloxane composition according to Claim 1, or 3, wherein the organohydrogensiloxane is H(CH 3 ) 2 SI[OSi(CH 3 ) 2 ] x OSi(CH 3 ) 2 H wherein x is within the range of 5 to 20, and said organohydrogensiloxane provides an average of 0.5 to 0.95 moles of silicon-bonded hydrogen per mole of silicon-bonded vinyl.
Claim 7
Dependent Claim
29 words
The curable siloxane composition according to Claim 1 wherein the platinum catalyst provides between 5 and 10 parts of the platinum atom per million parts of the total formulation.
Claim 8
Dependent Claim
50 words
The curable siloxane composition according to Claim 5 wherein the platinum catalyst provides between 5 and 10 parts by weight of the platinum atom per million parts by weight of the total formulation. 8. The cured product of Claim 1, 2 or 3. 9. The cured product of Claim 7.
References Cited (Backward Citations)
No citation records indexed.
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