Patent US3677268A successfully refreshed from Google Patents.
US4012302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable compositions containing s-aryl arylcarbothioic acid esters as photoinitiators
Assignee: Eastman Kodak Co
•
Filing: 1976-02-17
•
Granted: 1977-03-15
•
Expires: 1996-02-17
Abstract
Abstract Compositions comprising a photocurable ethylenically unsaturated compound and an S-aryl arylcarbothioic acid ester or a bis-S-aryl aryl-dicarbothioic acid ester.
Inventors
- 👤 Richard H. S. Wang
- 👤 James G. Pacifici
- 👤 Gordon C. Newland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:43
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C; C08; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0407; C08F299/0421; C08F299/0428; C08F299/0435; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101; C09D4/00; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/122; Y10S525/00; Y10S525/92
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
70 words
A composition comprising a photocurable ethylenically unsaturated compound and an S-aryl arylcarbothioic acid ester or a bis-S-aryl aryldicarbothioic acid ester photoinitiating effective amount of a compound having the formula: ##STR2##wherein n is 1 or 2 and R 1 and R 2 are the same or different and are hydrogen, alkyl of up to about 12 carbon atoms, alkoxy of up to about 12 carbon atoms, halogen, phenyl, phenoxy or 2-benzoxazolyl.
Claim 2
Dependent Claim
70 words
A composition comprising a photocurable ethylenically unsaturated compound and an S-aryl arylcarbothioic acid ester or a bis-S-aryl aryldicarbothioic acid ester photoinitiating effective amount of a compound having the formula: ##STR2##wherein n is 1 or 2 and R 1 and R 2 are the same or different and are hydrogen, alkyl of up to about 12 carbon atoms, alkoxy of up to about 12 carbon atoms, halogen, phenyl, phenoxy or 2-benzoxazolyl.
Claim 3
Dependent Claim
40 words
A composition according to claim 1 wherein n is 1, R 1 is hydrogen or lower alkyl containing up to about 4 carbon atoms, and R 2 is hydrogen, lower alkyl containing up to about 4 carbon atoms or 2-benzoxazolyl.
Claim 4
Dependent Claim
23 words
A composition according to claim 1 wherein the photocurable ethylenically unsaturated compound is a derivative of acrylic acid or an unsaturated polyester resin.
Claim 5
Dependent Claim
29 words
A composition according to claim 1 wherein the ester is present in a concentration of about 0.1 to 15 weight percent based on the total weight of the composition.
Claim 6
Dependent Claim
29 words
A composition according to claim 1 wherein the photoinitiating effective amount is a concentration of about 0.5 to 10 weight percent based on the total weight of the composition.
Claim 7
Dependent Claim
42 words
A composition comprising a photocurable ethylenically unsaturated compound and about 0.5 to 10 weight percent based on the weight of the photocurable ethylenically unsaturated compound, of a compound having the formula ##STR3##wherein R 1 and R 2 each is hydrogen or methyl.
Claim 8
Dependent Claim
42 words
A composition comprising a photocurable ethylenically unsaturated compound and about 0.5 to 10 weight percent based on the weight of the photocurable ethylenically unsaturated compound, of a compound having the formula ##STR3##wherein R 1 and R 2 each is hydrogen or methyl.
Claim 9
Dependent Claim
23 words
A composition according to claim 6 wherein the photocurable ethylenically unsaturated compound is an ester of acrylic acid or an unsaturated polyester resin.
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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |