Patent US4268667A successfully refreshed from Google Patents.
US4268667A
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Derivatives of aryl ketones based on 9,10-dihydro-9,10-ethanoanthracene and p-dialkyl-aminoaryl aldehydes as visible sensitizers for photopolymerizable compositions
Assignee: EIDP Inc
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Filing: 1980-04-21
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Granted: 1981-05-19
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Expires: 2000-04-21
Abstract
Abstract Compositions useful as visible sensitizers for photopolymerizable compositions, the sensitizers being α, β-unsaturated ketones formed by condensing the acetyl or diacetyl derivative of 9,10-dihydro-9,10-ethano(or propano)anthracene with a p-dialkylaminobenzaldehyde; and the photopolymerizable compositions comprising monomer, sensitizer, and initiator, with or without a binder.
Inventors
- 👤 Albert G. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:32
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/10; C07D295/112; C07C; C07C225/00; C07C225/22; C07D215/00; C07D215/02; C07D215/12; C07D455/00; C07D455/03; C07D455/04; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08; C07C2602/10; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/14; C07C2603/56; C07C2603/86; C07C2603/88; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/118; Y10S430/12; Y10S430/124; Y10S502/00; Y10S502/522
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
136 words
A composition having the formula ##STR13## wherein: ##STR14## R 1 and R 2 are each H, or, R 1 +R 2 is --CH 2 --; R 3 is H, or R 3 +R 5 is selected from --CH 2 CH 2 --and --CH 2 CH 2 CH 2 --; R 4 is H, or, R 4 +R 6 is selected from --CH 2 CH 2 -- and --CH 2 CH 2 CH 2 --; R 5 and R 6 are alkyl groups of 1 to 5 carbon atoms, or together are selected from --Ch 2 ) 4 and --CH 2 CH 2 OCH 2 CH 2 --; R 7 is H or CH 3 ; and n is 0 or 1, with the proviso that when n is 1, R 1 and R 2 are H.
Claim 2
Dependent Claim
136 words
A composition having the formula ##STR13## wherein: ##STR14## R 1 and R 2 are each H, or, R 1 +R 2 is --CH 2 --; R 3 is H, or R 3 +R 5 is selected from --CH 2 CH 2 --and --CH 2 CH 2 CH 2 --; R 4 is H, or, R 4 +R 6 is selected from --CH 2 CH 2 -- and --CH 2 CH 2 CH 2 --; R 5 and R 6 are alkyl groups of 1 to 5 carbon atoms, or together are selected from --Ch 2 ) 4 and --CH 2 CH 2 OCH 2 CH 2 --; R 7 is H or CH 3 ; and n is 0 or 1, with the proviso that when n is 1, R 1 and R 2 are H.
Claim 3
Dependent Claim
19 words
A composition according to claim 1 wherein R 1 , R 2 and R 7 are H and n=0.
Claim 4
Dependent Claim
7 words
A composition according to claim 2: ##STR15##
Claim 5
Dependent Claim
7 words
A composition according to claim 2: ##STR16##
Claim 6
Dependent Claim
7 words
A composition according to claim 2: ##STR17##
Claim 7
Dependent Claim
7 words
A composition according to claim 2: ##STR18##
Claim 8
Dependent Claim
39 words
A composition according to claim 1 wherein R 1 , R 2 , R 3 , R 4 and R 7 are H, and R 5 and R 6 are each CH 3 or C 2 H 5 .
Claim 9
Dependent Claim
7 words
A composition according to claim 7: ##STR19##
Claim 10
Dependent Claim
7 words
A composition according to claim 7: ##STR20##
Claim 11
Dependent Claim
47 words
A composition according to claim 1 wherein R 1 , R 2 , R 3 , R 4 and R 7 are H, and R 5 +R 6 is selected from ( CH 2 ) 4 and --CH 2 ) 2 O --CH 2 ) 2 .
Claim 12
Dependent Claim
7 words
A composition according to claim 10: ##STR21##
Claim 13
Dependent Claim
7 words
A composition according to claim 10: ##STR22##
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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) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |