申请人:Wacker Polymer Systems GmbH & Co. KG
公开号:US20040014857A1
公开(公告)日:2004-01-22
Silane-containing polyvinyl alcohols, useful as additives in coating slips, are based on completely hydrolyzed or partially hydrolyzed vinyl ester copolymers having a degree of hydrolysis of from 75 to 100 mol %, obtainable by free radical polymerization of
a) one or more vinyl esters of straight-chain or branched alkane carboxylic acids having 1 to 18 carbon atoms, of which an amount of from 1 to 30 mol %, based on total polymer, are one or more 1-alkylvinyl esters of carboxylic acids having 1 to 6 carbon atoms, and wherein the alkyl radicals have 1 to 6 carbon atoms,
b) from 0.01 to 10 mol % of one or more silane-containing, ethylenically unsaturated monomers and, if required,
c) further comonomers copolymerizable therewith,
and hydrolysis of the polymers obtained thereby.
含硅烷的聚乙烯醇可用作涂层滑料的添加剂,其基础是完全水解或部分水解的乙烯基酯共聚物,其水解度为 75 至 100 摩尔%,可通过以下物质的自由基聚合获得
a) 具有 1 至 18 个碳原子的直链或支链烷烃羧酸的一种或多种乙烯基酯,其中具有 1 至 6 个碳原子的烷基自由基羧酸的一种或多种 1-烷基乙烯基酯占聚合物总量的 1 至 30 摩尔%、
b) 0.01 至 10 摩尔%的一种或多种含硅烷的乙烯基不饱和单体,必要时还可包括
c) 可与之共聚的其他共聚单体、
并水解由此得到的聚合物。