US4038164A
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US
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Photopolymerizable aryl and heterocyclic glyoxylate compositions and process
Assignee: Akzo America Inc
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Filing: 1975-09-18
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Granted: 1977-07-26
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Expires: 1995-09-18
Abstract
Abstract The present invention relates to the use of arylglyoxalate, ring substituted arylglyoxalate and heterocyclic glyoxalate compounds as photoinitiators in the photopolymerization of monomeric and polymeric compositions under the influence of actinic radiation.
Inventors
- 👤 Francis A. Via
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:57
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08F299/00; C08F299/02; C08F299/04; C08F299/0407; C08F299/0421; C08F299/0428; C08F299/0435; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
115 words
In the polypolymerization of monomeric and polymeric compositions of photopolymerizable substances wherein a photoinitiator is admixed with a photopolymerizable composition and the mixture exposed to actinic radiation, the improvement wherein photopolymerization is effectively initiated by a compound of the formula: ##STR2## wherein R is straight or branched chain hydrocarbon of from one to ten carbon atoms, aryl, aralkyl, or mono-, di or trialkylsilyl and R' is a heterocyclic radical, aryl of from 6 to 14 carbon atoms or mono-, di- or polysubstituted phenyl with substituents selected from the group consisting of alkyl, alkoxy, aryloxy, alkylthio, arylthio and halogen, said photoinitiator being present in said composition at a concentration of 0.01 to about 30 weight percent.
Claim 2
Dependent Claim
115 words
In the polypolymerization of monomeric and polymeric compositions of photopolymerizable substances wherein a photoinitiator is admixed with a photopolymerizable composition and the mixture exposed to actinic radiation, the improvement wherein photopolymerization is effectively initiated by a compound of the formula: ##STR2## wherein R is straight or branched chain hydrocarbon of from one to ten carbon atoms, aryl, aralkyl, or mono-, di or trialkylsilyl and R' is a heterocyclic radical, aryl of from 6 to 14 carbon atoms or mono-, di- or polysubstituted phenyl with substituents selected from the group consisting of alkyl, alkoxy, aryloxy, alkylthio, arylthio and halogen, said photoinitiator being present in said composition at a concentration of 0.01 to about 30 weight percent.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is methyl phenylglyoxalate.
Claim 4
Dependent Claim
14 words
The method of claim 2 wherein the photopolymerizable substance additionally contains a pigmentation additive.
Claim 5
Dependent Claim
12 words
The method of claim 3 wherein the pigmentation additive is titanium dioxide.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is ethyl phenylglyoxalate.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein the photoinitiating compound is tertiary butyl phenylglyoxalate.
Claim 8
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is benzyl phenylglyoxalate.
Claim 9
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is trimethylsilyl phenylglyoxalate.
Claim 10
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is allyl phenylglyoxalate.
Claim 11
Dependent Claim
11 words
The method of claim 1 wherein the photoinitiating compound is ethyl-p-ethylphenylglyoxalate.
Claim 12
Dependent Claim
11 words
The method of claim 1 wherein the photoinitiating compound is ethyl-p-phenylphenylglyoxalate.
Claim 13
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is ethyl naphthylglyoxalate.
Claim 14
Dependent Claim
11 words
The method of claim 1 wherein the photoinitiating compound is ethyl-p-phenoxyphenylglyoxalate.
Claim 15
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is ethyl-p-methylthio phenylglyoxalate.
Claim 16
Dependent Claim
12 words
The method of claim 1 wherein the photoinitiating compound is ethyl-p-phenylthio phenylglyoxalate.
Claim 17
Dependent Claim
26 words
The method of claim 1 wherein the photoinitiating compound is present at a concentration of about 0.5 percent by weight to about 16 percent by weight.
Claim 18
Dependent Claim
26 words
The method of claim 1 wherein the photoinitiating compound is present at a concentration of about 1.0 percent by weight to about 16 percent by weight.
Claim 19
Dependent Claim
84 words
A composition photopolymerizable by actinic radiation comprising unsaturated polymerizable constituents containing dispersed therein from 0.01 to 30 weight percent of a photoinitiating compound of the formula: ##STR3## wherein R is straight or branched chain hydrocarbon of from one to ten carbon atoms, aryl, aralkyl, or mono-, di- or trialkylsilyl and R' is a heterocyclic radical, aryl of from 6 to 14 carbon atoms or mono-, di- or polysubstituted phenyl with substituents selected from the group consisting or alkyl, alkoxy, aryloxy, alkylthio, arylthio, and halogen.
Claim 20
Dependent Claim
84 words
A composition photopolymerizable by actinic radiation comprising unsaturated polymerizable constituents containing dispersed therein from 0.01 to 30 weight percent of a photoinitiating compound of the formula: ##STR3## wherein R is straight or branched chain hydrocarbon of from one to ten carbon atoms, aryl, aralkyl, or mono-, di- or trialkylsilyl and R' is a heterocyclic radical, aryl of from 6 to 14 carbon atoms or mono-, di- or polysubstituted phenyl with substituents selected from the group consisting or alkyl, alkoxy, aryloxy, alkylthio, arylthio, and halogen.
Claim 21
Dependent Claim
10 words
The composition of claim 18 which additionally contains a photosensitizer.
Claim 22
Dependent Claim
17 words
The composition of claim 18 wherein the unsaturated polymerizable constituents consist essentially of derivatives of acrylic acid.
Claim 23
Dependent Claim
12 words
The composition of claim 18 wherein the photoinitiating compound is methyl phenylglyoxalate.
Claim 24
Dependent Claim
11 words
The composition of claim 21 which additionally contains a pigmentation additive.
Claim 25
Dependent Claim
12 words
The composition of claim 22 wherein said pigmentation additive is titanium dioxide.
References Cited (Backward Citations)
US3888671A
Cited
US3930868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |