Celanese Gmbh

John C Trebellas

Charles B Rybny

William A Hoffman, Iii

Iraj K Shahidi

Donald E Sargent

Preston K Martin

A new composition of matter particularly useful as a diluent in ultraviolet coating compositions is disclosed, having the formulae : ##STR1## wherein R is --CH.sub.3 or --CH.sub.2 CH.sub.3, R' is hydrogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 halogenated alkyl, R' is hydrogen or methyl, and n is 1-4.

Diluents for ultraviolet coating compositions

The use of terminal trichlorinated, brominated or iodinated hydrocarbons as co-photoinitiators in combination with standard photoinitiators in ultraviolet curable coating compositions is disclosed.

Trihalogenated hydrocarbons as co-photoinitiators

There is disclosed a process for conveniently preparing polymers having pendant ultraviolet polymerizable groups of the acrylate or methacrylate types, which process involves co-reacting a polymer containing the C-X moiety with a monomer having the general formula ##STR1## wherein X is OH or COOH and Y is OH when X is OH, and OR'OH when X is COOH, wherein R' is C.sub.1 -C.sub.6 alkyl. This process is catalyzed utilizing an essentially solid ion exchange catalyst.

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Berkeley Heights, NJ, United States of America

John C Trebellas