US4675426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-radical, initiators, curable compositions, and methods
Assignee: General Electric Co
•
Filing: 1986-06-11
•
Granted: 1987-06-23
•
Expires: 2006-06-11
Abstract
Abstract There is provided curable compositions of free-radical polymerizable organic monomers and polymers and cyclicsilylpinacoles which can be used in combination to make such curable compositions.
Inventors
- 👤 James V. Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:44
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/42; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
Curable compositions comprising (A) 100 parts of a free radical polymerizable organic monomer, polymer or mixture thereof, and (B) 0.1 to 20 parts of a silyl pinacole of the formula ##STR9## where R and R 1 are the same or different C.sub.(6-14) aromatic organic radicals, and when joined together and attached to the same carbon atom are selected from divalent aryl radicals having the formula ##STR10## R 4 and R 5 are selected from divalent (C 6-14 ) aryl organic radicals, R 2 is a monovalent radical selected from C.sub.(1-8) alkyl, C.sub.(1-8) haloalkyl, C.sub.(1-8) alkoxy, or C.sub.(6-13) aryl, R 3 is a monovalent radical selected from hydrogen and R 2 radicals, X is selected from O, S, CH 2 and ##STR11## and a is 0 or 1.
Claim 2
Dependent Claim
127 words
Curable compositions comprising (A) 100 parts of a free radical polymerizable organic monomer, polymer or mixture thereof, and (B) 0.1 to 20 parts of a silyl pinacole of the formula ##STR9## where R and R 1 are the same or different C.sub.(6-14) aromatic organic radicals, and when joined together and attached to the same carbon atom are selected from divalent aryl radicals having the formula ##STR10## R 4 and R 5 are selected from divalent (C 6-14 ) aryl organic radicals, R 2 is a monovalent radical selected from C.sub.(1-8) alkyl, C.sub.(1-8) haloalkyl, C.sub.(1-8) alkoxy, or C.sub.(6-13) aryl, R 3 is a monovalent radical selected from hydrogen and R 2 radicals, X is selected from O, S, CH 2 and ##STR11## and a is 0 or 1.
Claim 3
Dependent Claim
16 words
A curable composition in accordance with claim 1 where the free-radical polymerizable organic monomer is styrene.
Claim 4
Dependent Claim
19 words
A curable composition in accordance with claim 1 where the free-radical curable polymerizable organic polymer is an unsaturated polyester.
Claim 5
Dependent Claim
13 words
A curable composition in accordance with claim 1 where the cyclicsilylpinacole is 2,2-dimethyl-4,4,5,5-tetraphenyl-1,3-dioxa-2-silole.
Claim 6
Dependent Claim
15 words
A curable composition in accordance with claim 1, having a mixture of polyethylene and styrene.
Claim 7
Dependent Claim
16 words
A curable composition in accordance with claim 1, having a mixture of maleic anhydride and polyethylene.
Claim 8
Dependent Claim
114 words
Cyclic silyl pinacoles of the formula ##STR12## where R and R 1 are the same or different C.sub.(6-14) aromatic organic radicals, and when joined together and attached to the same carbon atom are selected from divalent aryl radicals having the formula ##STR13## R 4 and R 5 are selected from divalent (C 6-14 ) aryl organic radicals, R 6 is selected from monovalent C.sub.(1-14) hydrocarbon radical free of aliphatic unsaturation, and C.sub.(1-14) monovalent hydrocarbon radical free of aliphatic unsaturation substituted with radicals neutral during free radical polymerization, and R 7 is selected from hydrogen and R 6 , X is selected from O, S, CH 2 and ##STR14## and a is 0 or 1.
Claim 9
Dependent Claim
114 words
Cyclic silyl pinacoles of the formula ##STR12## where R and R 1 are the same or different C.sub.(6-14) aromatic organic radicals, and when joined together and attached to the same carbon atom are selected from divalent aryl radicals having the formula ##STR13## R 4 and R 5 are selected from divalent (C 6-14 ) aryl organic radicals, R 6 is selected from monovalent C.sub.(1-14) hydrocarbon radical free of aliphatic unsaturation, and C.sub.(1-14) monovalent hydrocarbon radical free of aliphatic unsaturation substituted with radicals neutral during free radical polymerization, and R 7 is selected from hydrogen and R 6 , X is selected from O, S, CH 2 and ##STR14## and a is 0 or 1.
Claim 10
Dependent Claim
24 words
A cyclic silyl pinacole in accordance with claim 7, where R and R 1 are phenyl and R 6 and R 7 are methyl.
Claim 11
Dependent Claim
24 words
A cyclic silyl pinacole in accordance with claim 7, where R and R 1 are phenyl and R 6 and R 7 are ethyl.
Claim 12
Dependent Claim
24 words
A cyclic silyl pinacole in accordance with claim 7, where R and R 1 are phenyl and R 6 and R 7 are phenyl.
Claim 13
Dependent Claim
24 words
A cyclic silyl pinacole in accordance with claim 7, where R and R 1 are phenyl and R 6 and R 7 are t-butyl.
Claim 14
Dependent Claim
26 words
A cyclic silyl pinacole in accordance with claim 7, where R and R 1 are phenyl and R 6 and 7 are methyl and phenyl respectively.
Claim 15
Dependent Claim
16 words
A cyclic silyl pinacole in accordance with claim 7 where R and R 1 are t-butyl.
References Cited (Backward Citations)
US4535174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |