US4264709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic photoinitiators for ultraviolet curable resins
Assignee: Eastman Chemical Co
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Filing: 1979-01-18
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Granted: 1981-04-28
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Expires: 1999-01-18
Abstract
Abstract This invention relates to a series of photoinitiator combinations comprising mixtures of a primary photoinitiator in combination with N-halosuccinimides, N-haloacetanilides and N-halobenzanilides and photopolymerizable composition containing such combinations.
Inventors
- 👤 Gordon C. Newland
- 👤 James G. Pacifici
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:40
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; G03F7/0295; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/117; Y10S430/12; Y10S430/121; Y10S430/126
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
47 words
A composition comprising an ethylenically unsaturated material susceptible to photopolymerization and a photoinitiating effective amount of a mixture comprising a primary photoinitiator and a halogen compound selected from N-chlorosuccinimide, N-bromosuccinimide, N-chloroacetanilide and N-chlorobenzanilide, the weight ratio of primary photoinitiator to halogen compound being about 1:20 to 10:1.
Claim 2
Dependent Claim
47 words
A composition comprising an ethylenically unsaturated material susceptible to photopolymerization and a photoinitiating effective amount of a mixture comprising a primary photoinitiator and a halogen compound selected from N-chlorosuccinimide, N-bromosuccinimide, N-chloroacetanilide and N-chlorobenzanilide, the weight ratio of primary photoinitiator to halogen compound being about 1:20 to 10:1.
Claim 3
Dependent Claim
30 words
A composition according to claim 1 wherein the primary photoinitiator is selected from benzophenone, 1-chloromethylnaphthalene, 2-chlorothioxanthone, α,α-diethoxyacetophenone, 2,3-dichloronaphthoquinone, 4,4'-bis(α-chloroacetyl)benzene, α,α,α-trichloroacetophenone, isopropyl benzoin ether, 4'-tert-butyl-α,α,α-trichloroacetophenone, 4,4'-bis(chloromethyl)benzophenone, 4-chloromethyl-4'-carbomethoxybenzophenone, 2-chloromethylbenzimidazole, 2-(α-chlorotolyl)benzoxazole and 4,4'-dimethylbenzophenone.
Claim 4
Dependent Claim
38 words
A composition according to claim 1 wherein the concentration of the primary photoinitiator is from about 1-5 weight percent and the concentration of the halogen compound is about 1-10 weight percent, based on the weight of the composition.
Claim 5
Dependent Claim
30 words
A composition according to claim 3 wherein the primary photoinitiator is selected from benzophenone, 1-chloromethylnaphthalene, 2-chlorothioxanthone, α,α-diethoxyacetophenone, 2,3-dichloronaphthoquinone, 4,4'-bis(α-chloroacetyl)benzene, α,α,α-trichloroacetophenone, isopropyl benzoin ether, 4'-tert-butyl-α,α,α-trichloroacetophenone, 4,4'-bis(chloromethyl)benzophenone, 4-chloromethyl-4'-carbomethoxybenzophenone, 2-chloromethylbenzimidazole, 2-(α-chlorotolyl)benzoxazole and 4,4'-dimethylbenzophenone.
Claim 6
Dependent Claim
84 words
A composition comprising an ethylenically unsaturated material susceptible to photopolymerization and a photoinitiating effective amount of a mixture comprising a primary photoinitiator selected from benzophenone, 1-chloromethylnaphthalene, 2-chlorothioxanthone, α,α-diethoxyacetophenone, 2,3-dichloronaphthoquinone, 4,4'-bis(α-chloroacetyl)benzene, α,α,α-trichloroacetophenone, isopropyl benzoin ether, 4'-tert-butyl-α,α,α-trichloroacetophenone, 4,4'-bis(chloromethyl)benzophenone, 4-chloromethyl-4'-carbomethoxybenzophenone, 2-chloromethylbenzimidazole, 2-α-chlorotolyl)benzoxazole and 4,4'-dimethylbenzophenone and a halogen compound selected from N-chlorosuccinimide, N-bromosuccinimide, N-chloroacetanilide and N-chlorobenzanilide, wherein the concentration of the primary photoinitiator is from about 1-5 weight percent and the concentration of the halogen compound is about 1-10 weight percent, based on the weight of the composition.
Claim 7
Dependent Claim
84 words
A composition comprising an ethylenically unsaturated material susceptible to photopolymerization and a photoinitiating effective amount of a mixture comprising a primary photoinitiator selected from benzophenone, 1-chloromethylnaphthalene, 2-chlorothioxanthone, α,α-diethoxyacetophenone, 2,3-dichloronaphthoquinone, 4,4'-bis(α-chloroacetyl)benzene, α,α,α-trichloroacetophenone, isopropyl benzoin ether, 4'-tert-butyl-α,α,α-trichloroacetophenone, 4,4'-bis(chloromethyl)benzophenone, 4-chloromethyl-4'-carbomethoxybenzophenone, 2-chloromethylbenzimidazole, 2-α-chlorotolyl)benzoxazole and 4,4'-dimethylbenzophenone and a halogen compound selected from N-chlorosuccinimide, N-bromosuccinimide, N-chloroacetanilide and N-chlorobenzanilide, wherein the concentration of the primary photoinitiator is from about 1-5 weight percent and the concentration of the halogen compound is about 1-10 weight percent, based on the weight of the composition.
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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |