| 摘要 |
The invention relates to a transparent masterbatch for improving the surface properties of thermoplastics, said masterbatch containing from 10% to 60% by weight of polyhedral oligomeric silicon-oxygen cluster units in accordance with the formula [(R<SUB>a</SUB>X<SUB>b</SUB>,SiO<SUB>1-5</SUB>)<SUB>m</SUB>(R<SUB>C</SUB>X<SUB>d</SUB>SIO)<SUB>n</SUB>(R<SUB>e</SUB>X<SUB>f</SUB>Si<SUB>2</SUB>O<SUB>2.5</SUB>)<SUB>o</SUB>(R<SUB>g</SUB>X<SUB>h</SUB>Si<SUB>2</SUB>O<SUB>2</SUB>)<SUB>p</SUB>] where: a, b, c=0-1; d=1-2; e, f, g=0-3; h=1-4; m+n+o+p>=4; a+b=1; c+d=2; e+f=3 and g+h=4; R=hydrogen atom, alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl group or polymer unit, each substituted or unsubstituted, or further functionalized polyhedral oligomeric silicon-oxygen cluster units attached via a polymer unit or a bridging unit, X=oxy, hydroxy, alkoxy, carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halogen, epoxy, ester, fluoroalkyl, isocyanate, blocked isocyanate, acrylate, methacrylate, nitrile, amino, phosphine or polyether group or substituents of type R containing at least one such group of type X the substituents of type R being identical or different and the substituents of type X being identical or different and from 40% to 9011/o by weight of a thermoplastic carrier material, and to a transparent thermoplastic and to its production process.
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