会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 63. 发明授权
    • Process for preparing an aqueous polymer dispersion
    • 制备聚合物水分散体的方法
    • US5756574A
    • 1998-05-26
    • US809601
    • 1997-04-03
    • Roland BaumstarkRobert Rupaner
    • Roland BaumstarkRobert Rupaner
    • C08F2/00C08F2/16C08F2/22C08F4/40C08F6/00C08F12/08C08F14/06C08F14/08C08F18/08C08F18/10C08F20/04C08F20/12C08F20/56
    • C08F6/006
    • A process for the preparation of an aqueous polymer emulsion, in which an aqueous emulsion of a polymer which contains at least one chemically bonded monomer having at least one ethylenically unsaturated group is produced in a manner known per se so that the total content of free monomers having at least one ethylenically unsaturated double bond, ie. monomers of this type which are not chemically bonded, in the aqueous polymer emulsion is from >0 to .ltoreq.1% by weight, based on the polymer content of the aqueous polymer emulsion, and this residual monomer content is then reduced by the action of a free radical redox initiator system comprising at least one oxidizing agent and at least one reducing agent, wherein the redox initiator system comprises, as the reducing agent, one which is present, in aqueous solution, in at least two tautomeric forms in equilibrium with one another (for example aminoiminomethanesulfinic acid and/or the salts thereof).
    • PCT No.PCT / EP95 / 03770 371日期1997年4月3日 102(e)日期1997年4月3日PCT提交1995年9月23日PCT公布。 第WO96 / 10588号公报 日期1996年4月11日制备含水聚合物乳液的方法,其中含有至少一种具有至少一个烯键式不饱和基团的化学键合单体的聚合物的水性乳液以本身已知的方式制备, 具有至少一个烯属不饱和双键的游离单体的总含量,即 基于聚合物水乳液的聚合物含量,在聚合物水乳液中不含化学键合的这类单体的重量百分比> 0至<1%,然后通过作用 包含至少一种氧化剂和至少一种还原剂的自由基氧化还原引发剂体系,其中所述氧化还原引发剂体系包含在水溶液中存在的至少两种互变异构体作为还原剂,其与 彼此(例如氨基亚氨基甲亚磺酸和/或其盐)。