US4146453A
Expired / Lapsed
US
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Photopolymerizable composition stabilized with epoxide compounds and process
Assignee: Akzo America Inc
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Filing: 1977-05-16
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Granted: 1979-03-27
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Expires: 1997-05-16
Abstract
Abstract A stabilized photopolymerizable composition comprising photopolymerizable ethylenically unsaturated monomeric compounds, a photoinitiator and at least one epoxide compound as a stabilizer.
Inventors
- 👤 Francis A. Via
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:59
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; Y; Y10; Y10S; Y10S522/00; Y10S522/901
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
50 words
In a photopolymerizable composition comprising at least one photopolymerizable ethylenically unsaturated compound and a photoinitiating compound, the improvement which comprises incorporating a stabilizing amount of an epoxide having the formula: ##STR9## where R 5 is hydrogen or alkyl of 1 to 4 carbon atoms and n is zero or 1.
Claim 2
Dependent Claim
50 words
In a photopolymerizable composition comprising at least one photopolymerizable ethylenically unsaturated compound and a photoinitiating compound, the improvement which comprises incorporating a stabilizing amount of an epoxide having the formula: ##STR9## where R 5 is hydrogen or alkyl of 1 to 4 carbon atoms and n is zero or 1.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said epoxide is 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate.
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) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |