US3988229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized photopolymerizable polymeric compositions containing a photoinitiator and a nitrone derivative
Assignee: Eastman Kodak Co
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Filing: 1975-08-28
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Granted: 1976-10-26
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Expires: 1995-08-28
Abstract
Abstract The invention relates to stabilized photopolymerizable or photocrosslinkable polymeric compositions having improved storage stability. These compositions are 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, at least one photoinitiator and a particular nitrone.
Inventors
- 👤 James G. Pacifici
- 👤 Gordon C. Newland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:51
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08K; C08K5/00; C08K5/16; C08K5/32; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
A stabilized radiation-curable coating composition comprising: a. at least one ethylenically unsaturated compound, b. at least one photoinitiator, and c. from about 0.001 to about 0.3 weight percent of a nitrone having the formula: ##EQU1## wherein R 1 is aryl or substituted aryl; R 2 is H, alkyl, cycloalkyl, araallyl, aryl or substituted aryl; and R 3 is tertiary alkyl or aryl.
Claim 2
Dependent Claim
62 words
A stabilized radiation-curable coating composition comprising: a. at least one ethylenically unsaturated compound, b. at least one photoinitiator, and c. from about 0.001 to about 0.3 weight percent of a nitrone having the formula: ##EQU1## wherein R 1 is aryl or substituted aryl; R 2 is H, alkyl, cycloalkyl, araallyl, aryl or substituted aryl; and R 3 is tertiary alkyl or aryl.
Claim 3
Dependent Claim
14 words
A stabilized radiation-curable coating composition according to claim 1 wherein said nitrone is N,a-diphenylnitrone.
Claim 4
Dependent Claim
15 words
A stabilized radiation curable coating composition according to claim 1 wherein said nitrone is α-4-carbomethoxyphenyl-N-phenylnitrone.
Claim 5
Dependent Claim
14 words
A stabilized radiation-curable coating composition according to claim 1 wherein said nitrone is α-carbomethoxyphenyl-N-t-butylnitrone.
Claim 6
Dependent Claim
15 words
A stabilized radiation curable coating composition according to claim 1 wherein said nitrone is α-4-nitrophenyl-N-t-butylnitrone.
Claim 7
Dependent Claim
14 words
A stabilized radiation-curable coating composition according to claim 1 wherein said nitrone is α,α-(1,4-phenylene)-N-t-butyldinitrone.
Claim 8
Dependent Claim
15 words
A stabilized radiation curable coating composition according to claim 1 wherein said nitrone is α-4-carboxyphenyl-N-t-butylnitrone.
Claim 9
Dependent Claim
15 words
A stabilized radiation curable coating composition according to claim 1 wherein said nitrone is α-phenyl-N-t-butylnitrone.
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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |