Patent US4156035A successfully refreshed from Google Patents.
US4156035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable epoxy-acrylate compositions
Assignee: National Starch and Chemical Investment Holding Corp
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Filing: 1978-05-09
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Granted: 1979-05-22
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Expires: 1998-05-09
Abstract
Abstract This invention relates to radiation curable compositions comprising mixtures of epoxy resin and di- or polyacrylate or methacrylate terminated monomers in combination with a catalyst system comprising a carbonyl type photoinitiator with an aromatic onium salt capable of effecting the cure by release of a Lewis Acid.
Inventors
- 👤 Jung-Hsien Tsao
- 👤 Arthur D. Ketley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:40
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/10; C08G; C08G59/00; C08G59/18; C08G59/68; C09; C09D; C09D4/00; C09D4/06; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/115; Y10S430/124; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
93 words
A composition comprising: A. an epoxy resin polymerizable to a higher molecular weight state and containing one or more epoxy functional groups selected from an epoxy monomer, epoxy prepolymer, oxirane containing polymer and mixtures thereof; B. a polymerizable monomer containing at least two ##STR10## groups wherein R is H or CH 3 ; C. an effective amount of a radiation sensitive aromatic onium salt of a Gp. VIa element capable of effecting the cure of (A) by release of a Lewis Acid catalyst when exposed to radiant energy and D. a carbonyl-type photoinitiator.
Claim 2
Dependent Claim
93 words
A composition comprising: A. an epoxy resin polymerizable to a higher molecular weight state and containing one or more epoxy functional groups selected from an epoxy monomer, epoxy prepolymer, oxirane containing polymer and mixtures thereof; B. a polymerizable monomer containing at least two ##STR10## groups wherein R is H or CH 3 ; C. an effective amount of a radiation sensitive aromatic onium salt of a Gp. VIa element capable of effecting the cure of (A) by release of a Lewis Acid catalyst when exposed to radiant energy and D. a carbonyl-type photoinitiator.
Claim 3
Dependent Claim
14 words
The composition according to claim 1 in which component C is triphenyl sulfonium fluoroborate.
Claim 4
Dependent Claim
14 words
The composition according to claim 1 in which Component C is triphenyl sulfonium hexafluorophosphate.
Claim 5
Dependent Claim
14 words
The composition according to claim 1 in which Component C is triphenyl sulfonium hexafluoroantimonate.
Claim 6
Dependent Claim
15 words
The composition according to claim 1 in which Component D is a benzoin alkyl ether.
Claim 7
Dependent Claim
31 words
A process for coating a substrate which comprises applying a thin layer of the composition of claim 1 to the substrate and curing the composition by exposing the layer to radiation.
Claim 8
Dependent Claim
12 words
The process according to claim 6 wherein the radiation is UV radiation.
Claim 9
Dependent Claim
14 words
The process according to claim 6 wherein the radiation is high energy ionizing radiation.
Claim 10
Dependent Claim
19 words
The process of curing an epoxy-acrylate or methacrylate mixture which comprises exposing the composition of claim 1 to radiation.
Claim 11
Dependent Claim
12 words
The process according to claim 9 wherein the radiation is UV radiation.
Claim 12
Dependent Claim
14 words
The process according to claim 9 wherein the radiation is high energy ionizing radiation.
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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |