Patent US4414014A successfully refreshed from Google Patents.
Patent US4906718A successfully refreshed from Google Patents.
US4906718A
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Acrylate functional organosiloxane/oxyalkylene copolymers and electrically conductive compositions containing same and a solubilized lithium salt
Assignee: Dow Silicones Corp
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Filing: 1988-12-09
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Granted: 1990-03-06
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Expires: 2008-12-09
Abstract
Abstract This invention provides novel liquid organosiloxane/graftoxyalkylene copolymers that cure to yield solid materials wherein at least a portion of the pendant oxyalkylene units are terminated with an acrylate group. The copolymers can be cured by heating them in the presence of suitable curing agents, by exposure to ultraviolet radiation in the presence of a photoinitiator, or by exposure to an electron beam. The copolymers can be combined with solubilized, ionizable lithium salts to yield curable electroconductive compositions suitable for use as electrolytes in storage batteries.
Inventors
- 👤 Gerald A. Gornowicz
- 👤 Chi-Long Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:10
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122; C; C08; C08G; C08G77/00; C08G77/42; C08G77/46; C08L; C08L83/00; C08L83/10; C08L83/12; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/181; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
163 words
A liquid, curable copolymer having the general formula R 1 3 SiO(R 2 2 SiO) x (R 3 R 4 SiO) y (R 3 R 5 SiO) z SiR 1 3 , where R 1 , R 2 , and R 3 represent monovalent hydrocarbon or substituted monovalent hydrocarbon radicals, R 4 represents --R 6 O(CH 2 CH 2 O) m A, R 5 represents --R 7 O(CH 2 CH 2 O) n C(O)CR 8 ═CH 2 , R 6 and R 7 represent identical or different alkylene radicals containing from 2 to 12 carbon atoms, R 8 represents methyl or hydrogen, A represents an alkyl, aryl, or acyl radical, the values represented by m and n are each from 4 to 30, the values represented by x and y are each from 0 to 100, the value represented by z is at least 2, and the value of x+y+z is equivalent to a viscosity of up to 1 Pa.s at 25° C.
Claim 2
Dependent Claim
163 words
A liquid, curable copolymer having the general formula R 1 3 SiO(R 2 2 SiO) x (R 3 R 4 SiO) y (R 3 R 5 SiO) z SiR 1 3 , where R 1 , R 2 , and R 3 represent monovalent hydrocarbon or substituted monovalent hydrocarbon radicals, R 4 represents --R 6 O(CH 2 CH 2 O) m A, R 5 represents --R 7 O(CH 2 CH 2 O) n C(O)CR 8 ═CH 2 , R 6 and R 7 represent identical or different alkylene radicals containing from 2 to 12 carbon atoms, R 8 represents methyl or hydrogen, A represents an alkyl, aryl, or acyl radical, the values represented by m and n are each from 4 to 30, the values represented by x and y are each from 0 to 100, the value represented by z is at least 2, and the value of x+y+z is equivalent to a viscosity of up to 1 Pa.s at 25° C.
Claim 3
Dependent Claim
85 words
A composition according to claim 1 where R 1 , R 2 and R 3 are methyl, phenyl or 3,3,3-trifluoropropyl, R 6 and R 7 are ethylene or propylene, A represents an alkyl or acyl radical and contains from 1 to 4 carbon atoms, m and n are from 4 to 12, inclusive, x is from 0 to 35, inclusive, y is from 0 to 20, z is from 4 to 12 and the total of x, y and z is from 10 to 50.
Claim 4
Dependent Claim
25 words
A composition according to claim 2 where R 1 , R 2 and R 3 are methyl, R 8 is hydrogen and A is acetyl.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |