Patent US4245029A successfully refreshed from Google Patents.
US4245029A
Expired / Lapsed
US
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Photocurable compositions using triarylsulfonium salts
Assignee: General Electric Co
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Filing: 1979-08-20
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Granted: 1981-01-13
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Expires: 1999-08-20
Abstract
Abstract Photocurable compositions are provided based on the use of particular triarylsulfonium salts as photoinitiators for certain oxirane containing aliphatically unsaturated organic resins, such as acrylics, or mixtures of vinyl aromatic and unsaturated polyesters. A simultaneous free-radical cure and cationic cure of the aforesaid organic resins are achieved, which provides improved results, such as metal coatings having improved solvent resistance.
Inventors
- 👤 James V. Crivello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:01
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
Photocurable compositions comprising (A) a mixture of an aliphatically unsaturated organic material free of oxirane oxygen and oxirane containing monomeric or polymeric organic material and (B) 0.5 to 15% by weight photocurable composition of a triarylsulfonium salt of the formula, [(R).sub.a (R.sup.1).sub.b S].sup.+ [MQ.sub.d [.sup.-, where R is selected from the group consisting of a C.sub.(6-13) aromatic hydrocarbon radical, a heterocyclic radical, and substituted derivative thereof, R 1 is selected from the group of a divalent aromatic hydrocarbon radical, a divalent heterocyclic radical and substituted derivatives thereof, "a" is 1 or 3, "b" is 0 or 1, the valence of S can be satisfied by R alone or a combination of R and R 1 , "M" is a metal or metalloid, "Q" is a halogen radical and "d" has a value of from 4-6 inclusive.
Claim 2
Dependent Claim
136 words
Photocurable compositions comprising (A) a mixture of an aliphatically unsaturated organic material free of oxirane oxygen and oxirane containing monomeric or polymeric organic material and (B) 0.5 to 15% by weight photocurable composition of a triarylsulfonium salt of the formula, [(R).sub.a (R.sup.1).sub.b S].sup.+ [MQ.sub.d [.sup.-, where R is selected from the group consisting of a C.sub.(6-13) aromatic hydrocarbon radical, a heterocyclic radical, and substituted derivative thereof, R 1 is selected from the group of a divalent aromatic hydrocarbon radical, a divalent heterocyclic radical and substituted derivatives thereof, "a" is 1 or 3, "b" is 0 or 1, the valence of S can be satisfied by R alone or a combination of R and R 1 , "M" is a metal or metalloid, "Q" is a halogen radical and "d" has a value of from 4-6 inclusive.
Claim 3
Dependent Claim
16 words
A photocurable composition in accordance with claim 1, where the triarylsulfonium salt is a triphenylsulfonium salt.
Claim 4
Dependent Claim
13 words
A composition in accordance with claim 1, where the triarylsulfonium is triphenylsulfonium hexafluoroarsenate.
Claim 5
Dependent Claim
19 words
A photocurable composition in accordance with claim 1, where the oxirane containing aliphatically unsaturated organic material is glycidyl acrylate.
Claim 6
Dependent Claim
24 words
A photocurable composition in accordance with claim 1, where the photocurable composition is a mixture of an epoxy resin, an unsaturated polyester and styrene.
Claim 7
Dependent Claim
22 words
A photocurable composition in accordance with claim 1, where the photocurable composition is a mixture of an epoxy resin, methylmethacrylate and polymethylacrylate.
Claim 8
Dependent Claim
20 words
A composition in accordance with claim 1, where the aliphatically unsaturated organic material free of oxirane oxygen is a polyacrylate.
Claim 9
Dependent Claim
21 words
A photocurable composition in accordance with claim 1, where the aliphatically unsaturated organic material free of oxirane oxygen is trimethylolpropane triacrylate.
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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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |