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US4423136A
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Free radical curable resin compositions containing triarylsulfonium salt
Assignee: General Electric Co
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Filing: 1981-12-14
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Granted: 1983-12-27
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Expires: 2001-12-14
Abstract
Abstract Photocurable compositions are provided based on the use of a triarylsulfonium salt photoinitiator to effect the free-radical cure of particular organic resins, such as an acrylic. A free-radical curing method is also provided for a broad variety of aliphatically unsaturated materials including mixtures of styrene and unsaturated polyesters.
Inventors
- 👤 James V. Crivello
- 👤 James E. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:18
CPC Classifications
C; C09; C09D; C09D4/00; C09D4/06; C08; C08F; C08F291/00; C08F291/18; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/687; C08G85/00; Y; Y10; Y10S; Y10S522/00; Y10S522/901
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
A free radical photocurable organic resin composition consisting essentially of (A) a free radical curable organic resin free of oxirane oxygen selected from the class consisting of acrylic resins, thiolene resins, unsaturated polyesters and a mixture of unsaturated polyester and vinyl aromatic compound, (B) from 0.1 to 15% by weight of a triarylsulfonium salt of the formula, [(R).sub.3 S].sup.+ [(Y)], where R is a monovalent C.sub.(6-13) aromatic organic radical, and "Y" is an anion.
Claim 2
Dependent Claim
74 words
A free radical photocurable organic resin composition consisting essentially of (A) a free radical curable organic resin free of oxirane oxygen selected from the class consisting of acrylic resins, thiolene resins, unsaturated polyesters and a mixture of unsaturated polyester and vinyl aromatic compound, (B) from 0.1 to 15% by weight of a triarylsulfonium salt of the formula, [(R).sub.3 S].sup.+ [(Y)], where R is a monovalent C.sub.(6-13) aromatic organic radical, and "Y" is an anion.
Claim 3
Dependent Claim
18 words
A composition in accordance with claim 1, where the acrylic resin is a mixture of methylmethacrylate and polymethylmethacrylate.
Claim 4
Dependent Claim
14 words
A composition in accordance with claim 1, where the triarylsulfonium salt is a triphenylsulfonium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |