摘要:
Polymers can be obtained by free-radical polymerization of monomers in the presence of a dissolved polysiloxane. The free-radical-polymerizable monomers used are at least one compound of the formula I ##STR1## where R.sup.1 and R.sup.2 are, independently of one another, hydrogen, COOH, C.sub.1 -C.sub.18 -alkyl, cyclohexyl, C.sub.1 -C.sub.4 -alkyl-cyclohexyl, C.sub.6 -C.sub.10 -bicycloalkyl, C.sub.6 -C.sub.18 -tricycloalkyl,R.sup.3 is hydrogen or methyl,R.sup.4 is hydrogen, (C.sub.1 -C.sub.20)-alkyl, 2-hydroxypropyl, glycidyl,--[CH.sub.2 CH.sub.2 --O].sub.n H, having n=1 to 5,--[CH.sub.2 ].sub.m --OH, having m=3 to 18, in particular m=3 to 8,--[CH.sub.2 ].sub.2 O--[CO--(CH.sub.2).sub.5 ].sub.x OH, where x=a number from 1 to 3, or--[CH.sub.2 CHOHCH.sub.2 ]--O--(CO)R,where R is a C.sub.1 to C.sub.18 -alkyl radical.The polysiloxane used is at least one aromatic polyarylene siloxane of the formula III ##STR2## where R.sup.9 and R.sup.10 are, independently of one another, a C.sub.1 -C.sub.12 -alkyl radical, a C.sub.6 -C.sub.14 -aryl radical, or an unsubstituted or substituted vinyl radical, andR.sup.11, R.sup.12, R.sup.13 and R.sup.14 are, independently of one another, hydrogen, a C.sub.1 -C.sub.3 -alkyl radical or a substituted or unsubstituted C.sub.6 -C.sub.14 -aryl radical and--X-- is a group --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 --, --S--, --SO.sub.2 --, --CH.sub.2 -- or a cyclohexylidene group, or a single chemical bond and M is equal to 0 or 1 and N is a number from 2 to 500, in particular from 3 to 200.
摘要:
A polymeric coating agent which comprises a polymer of from 60 to 97 wt. % of one or more (meth)acrylic monomers the polymerization of which can be initiated by free radicals, from 3 to 40 wt. % of at least one .alpha., .omega.-hydroxy-, carboxy-, and/or epoxy-functional polysiloxanes of the formula (I) ##STR1## wherein R' can be the same or different and is C.sub.1-6 alkyl, and R can be the same or different and is ##STR2## wherein Alk and Alk' are C.sub.1-6 alkylene and the alkylene groups in a molecule can be the same or different, n is a cardinal number from 8 to 40, m is a cardinal number from 2 to 30, and p is a cardinal number from 1 to 20 of solids in the monomers.