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Abstract

Compositions comprising A) compounds of formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and each is hydrogen or methyl, and X is a divalent organic radical comprising from 2 to 60 carbon atoms, B) compounds of formula II, III or IV ##STR2## wherein each of R.sub.11, R.sub.12 and R.sub.13, independently of the others, is a hydrogen atom or a C.sub.3 -C.sub.10 alkenyl group, at least one of the radicals R.sub.11 to R.sub.13 being an alkenyl group, ##STR3## wherein Q is a direct bond, methylene, 2,2-propylidene, --CO--, --O--, --S--, --SO-- or --SO.sub.2 -- and each of R.sub.14, R.sub.15, R.sub.16 and R.sub.17, independently of the others, is a hydrogen atom or a C.sub.3 -C.sub.10 alkenyl group, at least one of the radicals R.sub.14 to R.sub.17 being an alkenyl group, or ##STR4## wherein each of R.sub.18, R.sub.19, R.sub.20, R.sub.21, R.sub.22 and R.sub.23, independently of the others, is a hydrogen atom, C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.10 alkenyl, at least one of the radicals R.sub.18 to R.sub.23 being an alkenyl group, and a is a number from 0 to 10, and C) compounds of formula V ##STR5## wherein R.sub.24 and R.sub.25 are identical or different and each is hydrogen or C.sub.1 -C.sub.10 alkyl, or of formula VI ##STR6## wherein R.sub.26 and R.sub.27 are identical or different and each is hydrogen or C.sub.1 -C.sub.8 alkyl, and Y is a direct bond, methylene, 2,2-propylidene, --O--, --S--, --SO--, --SO.sub.2 -- or --CO--, are distinguished by good storage stability, favourable processing behaviour and high glass transition temperatures.

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First Claim