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US4338172A
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Photopolymerizable composition stabilized with epoxide compounds and process
Assignee: Akzo America Inc
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Filing: 1980-09-15
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Granted: 1982-07-06
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Expires: 2000-09-15
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 19:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515; C08F; C08F2/00; C08F2/46
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
A photopolymerizable composition comprising at least one photopolymerizable ethylenically unsaturated compound containing a benzoin ether in an amount sufficient to initiate photopolymerization and a stabilizing amount of an epoxide having the formula: ##STR9## wherein: R 1 and R 2 are (a) independently selected hydrogen, alkyl of 1 to 18 carbon atoms, aryl of 6 to 13 ring carbon atoms, ##STR10## where R 3 is alkenyl of 2 to 6 carbon atoms and R 4 is alkylene of 1 to 4 carbon atoms or cycloalkenyl oxide of 5 or 6 ring carbon atoms, with the proviso that both R 1 and R 2 cannot be hydrogen; or (b) together with the adjacent epoxy carbon atoms form a cyclic hydrocarbon having a total of 5 to 7 ring carbon atoms.
Claim 2
Dependent Claim
128 words
A photopolymerizable composition comprising at least one photopolymerizable ethylenically unsaturated compound containing a benzoin ether in an amount sufficient to initiate photopolymerization and a stabilizing amount of an epoxide having the formula: ##STR9## wherein: R 1 and R 2 are (a) independently selected hydrogen, alkyl of 1 to 18 carbon atoms, aryl of 6 to 13 ring carbon atoms, ##STR10## where R 3 is alkenyl of 2 to 6 carbon atoms and R 4 is alkylene of 1 to 4 carbon atoms or cycloalkenyl oxide of 5 or 6 ring carbon atoms, with the proviso that both R 1 and R 2 cannot be hydrogen; or (b) together with the adjacent epoxy carbon atoms form a cyclic hydrocarbon having a total of 5 to 7 ring carbon atoms.
Claim 3
Dependent Claim
47 words
The composition of claim 1 wherein said benzoin ether is present in said composition at a concentration of about 0.01 to about 30 percent by weight, and said epoxide is present at a concentration of about 0.01 to about 20 percent by weight of said benzoin either.
Claim 4
Dependent Claim
72 words
The composition of claim 1 wherein in said formula, R 1 and R 2 are independently selected hydrogen, alkyl of 5to 18 carbon atoms, ##STR11## where R 3 is alkenyl of 3 or 4 carbon atoms and R 4 is alkylene of 1 or 2 carbon atoms or cyclohexenyl oxide, or together with the adjacent epoxy carbon atoms form a cyclic hydrocarbon having a total of 5 to 7 ring carbon atoms.
Claim 5
Dependent Claim
11 words
The composition of claim 3 wherein said epoxide is glycidyl acrylate.
Claim 6
Dependent Claim
10 words
The composition of claim 3 wherein said epoxide is 1,2-epoxydecane.
Claim 7
Dependent Claim
11 words
The composition of claim 3 wherein said epoxide is cyclohexene oxide.
Claim 8
Dependent Claim
17 words
The composition of claim 1 wherein the ethylenically unsaturated compounds consist essentially of derivatives of acrylic acid.
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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) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |