Claims
- 1. A photopolymerizable composition comprising at least one photopolymerizable ethylenically unsaturated compound containing a benzoin ether in an amount sufficient to initiate photopolymerization and a stabilizing amount of an epoxide having the formula: ##STR9## wherein: R.sup.1 and R.sup.2 are
- (a) independently selected hydrogen, alkyl of 1 to 18 carbon atoms, aryl of 6 to 13 ring carbon atoms, ##STR10## where R.sup.3 is alkenyl of 2 to 6 carbon atoms and R.sup.4 is alkylene of 1 to 4 carbon atoms or cycloalkenyl oxide of 5 or 6 ring carbon atoms, with the proviso that both R.sup.1 and R.sup.2 cannot be hydrogen; or
- (b) together with the adjacent epoxy carbon atoms form a cyclic hydrocarbon having a total of 5 to 7 ring carbon atoms.
- 2. The composition of claim 1 wherein said benzoin ether is present in said composition at a concentration of about 0.01 to about 30 percent by weight, and said epoxide is present at a concentration of about 0.01 to about 20 percent by weight of said benzoin either.
- 3. The composition of claim 1 wherein in said formula, R.sup.1 and R.sup.2 are independently selected hydrogen, alkyl of 5to 18 carbon atoms, ##STR11## where R.sup.3 is alkenyl of 3 or 4 carbon atoms and R.sup.4 is alkylene of 1 or 2 carbon atoms or cyclohexenyl oxide, or together with the adjacent epoxy carbon atoms form a cyclic hydrocarbon having a total of 5 to 7 ring carbon atoms.
- 4. The composition of claim 3 wherein said epoxide is glycidyl acrylate.
- 5. The composition of claim 3 wherein said epoxide is 1,2-epoxydecane.
- 6. The composition of claim 3 wherein said epoxide is cyclohexene oxide.
- 7. The composition of claim 1 wherein the ethylenically unsaturated compounds consist essentially of derivatives of acrylic acid.
Parent Case Info
This is a continuation of application Ser. No. 1,110, filed Jan. 5, 1979, which is a division of Ser. No. 769,960, filed 5/16/77.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
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Parent |
769960 |
May 1977 |
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Continuations (1)
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1110 |
Jan 1979 |
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