| 摘要 |
GRAFT COPOLYMERS HAVING IMPROVED PHASE BINDING BETWEEN THE GRAFT BASE AND THE GRAFTED-ON POLYMER PHASE Graft copolymers having improved phase binding between the graft base and the grafted-on polymer, are prepared from: a) a grafted-on polymer phase containing one or more monomers from the group consisting of (meth)acrylates of alcohols having 1 to 10 carbon atoms, vinyl esters of saturated aliphatic carboxylic acids having 2 to 10 carbon atoms, olefins, vinyl halides, styrene and styrene derivatives, and b) a peroxy group-containing copolymer phase containing from 0.01 to 20 % by weight of an olefinically unsaturated peroxy compound of the general formula I or II or where R1 is a chemical bond or a linear or branched alkyl chain having 1 to 10 carbon atoms or a cycloalkyl group having 3 to 10 carbon atoms, R2 and R are an alkyl group having 1 to 4 carbon atoms, R4 is an alkyl group or an alkyl-substituted phenyl group having 3 to 12 carbon atoms, and R5 is a cycloalkyl group having 3 to 12 carbon atoms, and from 80 to 99.9 % by weight of one or more comonomers from the group consisting of the (meth)acrylates of alcohols having 1 to 10 carbon atoms, vinyl esters of saturated aliphatic carboxylic acids having 2 to 10 carbon atoms, olefins, vinylaromatic compounds, vinyl halides and/or vinyl ethers. The graft copolymers are useful as binders in the textile industry as heat stable binders, as adhesives in plasters and as binders in emulsion paints. 26
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