Patent US3962056A successfully refreshed from Google Patents.
US3962056A
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US
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Photosensitive compositions containing benzimidazole sensitizers
Assignee: Eastman Kodak Co
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Filing: 1975-06-26
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Granted: 1976-06-08
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Expires: 1995-06-26
Abstract
Abstract The invention relates to photopolymerizable polymeric compositions useful as coating and moldable compositions which are hardenable by ultraviolet radiation. These coating and moldable compositions comprise mixtures of photopolymerizable or photocrosslinkable unsaturated compounds and at least one photoinitiator selected from the group consisting of halo-alkyl benzoxazoles, benzimidazoles and benzothiazoles.
Inventors
- 👤 James G. Pacifici
- 👤 Charles A. Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:01
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/0457
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
134 words
A molding and coating composition capable of being hardenable by ultraviolet radiation comprising a mixture of a photopolymerizable or photocrosslinkable ethylenically unsaturated compound and from 0.01 to 10% by weight of a photoinitiator selected from the group consisting of aryl heterocyclic compounds having the formula ##SPC2## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl chlorine, bromine, nitro, amino and can be the same or different; Y is a nitrogen atom containing an unsubstituted or substituted lower alkyl group having 1 to 12 carbon atoms or an aryl group or substituted aryl group having 6 to 18 carbon atoms; R 5 is CH 2 X, CHX 2 , CX 3 , aryl-CH 2 X; aryl-CHX 2 and aryl-CX 3 where X is chlorine and bromine.
Claim 2
Dependent Claim
134 words
A molding and coating composition capable of being hardenable by ultraviolet radiation comprising a mixture of a photopolymerizable or photocrosslinkable ethylenically unsaturated compound and from 0.01 to 10% by weight of a photoinitiator selected from the group consisting of aryl heterocyclic compounds having the formula ##SPC2## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl chlorine, bromine, nitro, amino and can be the same or different; Y is a nitrogen atom containing an unsubstituted or substituted lower alkyl group having 1 to 12 carbon atoms or an aryl group or substituted aryl group having 6 to 18 carbon atoms; R 5 is CH 2 X, CHX 2 , CX 3 , aryl-CH 2 X; aryl-CHX 2 and aryl-CX 3 where X is chlorine and bromine.
Claim 3
Dependent Claim
45 words
A molding and coating composition according to claim 1 wherein said photoinitiator has the formula: ##SPC3## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, chlorine, bromine, nitro, amino and can be the same or different;
Claim 4
Dependent Claim
29 words
R 5 is --CH 2 X, --CHX 2 , --CX 3 , -aryl CH 2 X, -aryl CHX 2 and -aryl CX 3 where X is chlorine or bromine.
Claim 5
Dependent Claim
29 words
R 5 is --CH 2 X, --CHX 2 , --CX 3 , -aryl CH 2 X, -aryl CHX 2 and -aryl CX 3 where X is chlorine or bromine.
Claim 6
Dependent Claim
51 words
A molding and coating composition according to claim 2 wherein said photoinitiator has the formula: ##SPC4## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, chlorine, bromine, nitro, amino and can be the same or different and X is chlorine or bromine.
Claim 7
Dependent Claim
51 words
A molding and coating composition according to claim 2 wherein said photoinitiator has the formula: ##SPC5## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, chlorine, bromine, nitro, amino and can be the same or different and X is chlorine or bromine.
Claim 8
Dependent Claim
51 words
A molding and coating composition according to claim 2 wherein said photoinitiator has the formula: ##SPC6## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl chlorine, bromine, nitro, amino and can be the same or different and X is chlorine or bromine.
Claim 9
Dependent Claim
51 words
A molding and coating composition according to claim 2 wherein said photoinitiator has the formula: ##SPC7## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, chlorine, bromine, nitro, amino and can be the same or different and X is chlorine or bromine.
Claim 10
Dependent Claim
51 words
A molding and coating composition according to claim 2 wherein said photoinitiator has the formula: ##SPC8## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, chlorine, bromine, nitro, amino and can be the same or different and X is chlorine or bromine.
Claim 11
Dependent Claim
51 words
A molding and coating composition according to claim 2 wherein said photoinitiator has the formula: ##SPC9## wherein R 1 , R 2 , R 3 and R 4 are hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, chlorine, bromine, nitro, amino and can be the same or different and X is chlorine or bromine.
Claim 12
Dependent Claim
16 words
A molding and coating composition according to claim 3 wherein said photoinitiator has the formula: ##SPC10##
Claim 13
Dependent Claim
16 words
A molding and coating composition according to claim 4 wherein said photoinitiator has the formula: ##SPC11##
Claim 14
Dependent Claim
16 words
A molding and coating composition according to claim 5 wherein said photoinitiator has the formula: ##SPC12##
Claim 15
Dependent Claim
16 words
A molding and coating composition according to claim 6 wherein said photoinitiator has the formula: ##SPC13##
Claim 16
Dependent Claim
16 words
A molding and coating composition according to claim 7 wherein said photoinitiator has the formula: ##SPC14##
Claim 17
Dependent Claim
16 words
A molding and coating composition according to claim 8 wherein said photoinitiator has the formula: ##SPC15##
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) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |