Thioxanthonecarboxylic acids, esters thioesters and amides with

Details Thioxanthonecarboxylic acids, esters thioesters and amides with Thioxanthonecarboxylic acids, esters thioesters and amides with

1984-09-19

1986-06-10

Henderson, Christopher A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

430629, 5253275, 5253298, 525348, 526262, 528322, C08F 2606, C08F 2806

Patent

active

045944008

ABSTRACT:
Thioxanthone carboxylic acid esters, thioesters and amides with reactive functional groups of the formula ##STR1## in which X, Y, Z, n and Q are as defined in the patent claim and Q is, for example, --OCH.dbd.CH.sub.2, --OCH.sub.2 CH.dbd.CH.sub.2, --SCH.sub.2 CH.dbd.CH.sub.2 or --NHCH.sub.2 CH.dbd.CH.sub.2 (n=1), --OH, --SH, --NH.sub.2, --COOH, --COCl or --OCO--C(R").dbd.CH.sub.2, in which R" is methyl or hydrogen (n=2), are suitable for the preparation of polymers with thioxanthone radicals in side chains. The compounds (I) and also the polymers which can be prepared therefrom can be employed as sensitizers for photocrosslinkable polymers or as initiators, if desired in a mixture with amines, for the photopolymerization of ethylenically unsaturated compounds or for the photochemical crosslinking of polyolefines.

REFERENCES:
patent: 3856789 (1974-12-01), Fleming et al.
patent: 3904647 (1975-09-01), Pfister et al.
patent: 4367324 (1983-01-01), Zweifel

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