US4088498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable copying composition
Assignee: Hoechst AG
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Filing: 1976-05-20
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Granted: 1978-05-09
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Expires: 1996-05-20
Abstract
Abstract This invention relates to a photopolymerizable copying composition comprising at least one binder, at least one photoinitiator, and at least one polymerizable compound having the formula ##STR1## wherein X is a saturated hydrocarbon group having 2 to 12 carbon atoms or an arylene group having 6 to 10 carbon atoms, R 1 is an alkyl group having 1 to 3 carbon atoms, R 4 or --CH 2 R 4 R 2 and R 3 are H, CH 3 , or --CH 2 R 4 , R 4 is --O--CO--CR 5 ═CH 2 R 5 is H or CH 3 , and n and m are integers from 0 to 4, R 4 being present in at least one of the groups R 1 , R 2 , and R 3 .
Inventors
- 👤 Raimund J. Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:55
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
A photopolymerizable composition comprising at least one photoinitiator, at least one binder and from 20 to 80 parts by weight, per 100 parts by weight of the sum of binders and monomers, of at least one polymerizable compound having the formula ##STR3## wherein X is a saturated hydrocarbon group having 4 to 12 carbon atoms, and containing at least one lateral methyl group, R 1 is an alkyl group having 1 to 3 carbon atoms, R 4 or --CH 2 R 4 , R 2 and R 3 are H, CH 3 , or --CH 2 R 4 , R 4 is --O--CO--CR 5 ═CH 2 , and R 5 is H or CH 3 , R 4 being present in at least one of the groups R 1 , R 2 and R 3 , said composition also containing at least 20 and not more than 80 parts by weight of binders per 100 parts by weight of the sum of monomers and binders.
Claim 2
Dependent Claim
165 words
A photopolymerizable composition comprising at least one photoinitiator, at least one binder and from 20 to 80 parts by weight, per 100 parts by weight of the sum of binders and monomers, of at least one polymerizable compound having the formula ##STR3## wherein X is a saturated hydrocarbon group having 4 to 12 carbon atoms, and containing at least one lateral methyl group, R 1 is an alkyl group having 1 to 3 carbon atoms, R 4 or --CH 2 R 4 , R 2 and R 3 are H, CH 3 , or --CH 2 R 4 , R 4 is --O--CO--CR 5 ═CH 2 , and R 5 is H or CH 3 , R 4 being present in at least one of the groups R 1 , R 2 and R 3 , said composition also containing at least 20 and not more than 80 parts by weight of binders per 100 parts by weight of the sum of monomers and binders.
Claim 3
Dependent Claim
15 words
A copying composition according to claim 1 in which R 5 is a methyl group.
Claim 4
Dependent Claim
29 words
A copying composition according to claim 1 comprising from 40 to 70 parts by weight of binders per 100 parts by weight of the sum of binders and monomers.
Claim 5
Dependent Claim
16 words
A copying composition according to claim 1 including a binder soluble or swellable in aqueous alkali.
Claim 6
Dependent Claim
23 words
A copying composition according to claim 1 containing the reaction product of 1 mole of 2,2,4-trimethyl-hexamethylene diisocyanate and 2 moles of hydroxyethyl methacrylate.
Claim 7
Dependent Claim
23 words
A copying composition according to claim 1 containing the reaction product of 1 mole of 2,2,4-trimethyl-hexamethylene diisocyanate and 2 moles of pentaerythritol triacrylate.
Claim 8
Dependent Claim
23 words
A copying composition according to claim 1 containing the reaction product of 1 mole of 2,2,4-trimethyl-hexamethylene diisocyanate and 2 moles of trimethylolethane diacrylate.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |