Photoinitiators and applications therefor
AssigneeKimberly-Clark Worldwide, Inc.
InventorsRonald S. Nohr, J. Gavin MacDonald
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Abstract
The present invention is directed to new, energy-efficient photoinitiators in the form of organic sulfur-containing compounds. The present invention is also directed to a method of generating reactive species which includes exposing one or more photoinitiators to radiation to form one or more reactive species. Also described are methods of polymerizing unsaturated monomers, methods of curing an unsaturated oligomer/monomer mixture, and methods of laminating using the photoinitiators of the present invention.
Claims25
A photoinitiator having the following formula:
- wherein x is an integer from 1 to 4, and R1 and R2 each independently represent H—
- (R)2N— where R is an akyl group having from one to six carbon atoms;
- a chalcone;
- HSO3— or NaSO3—;
- wherein at least oen of R1 and R2 is not H—.
A photoinitiator having the following formula:
- wherein x is an integer from 1 to 4.
A photoinitiator having the following formula:
- wherein x is an integer from 1 to 4;
- and wherein R1 and R2 each independently represent
- (R)2N— where R is an alkyl group having from one to six carbon atoms;
- a chalcone;
- HSO3— or NaSO3—.
Dependencies are inferred from the claim text.