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    • 5. 发明授权
    • Aqueous polymer dispersions preparation
    • 水性聚合物分散体制备
    • US4560724A
    • 1985-12-24
    • US625669
    • 1984-06-28
    • Hartmut BrabetzHerbert EckReinhard JiraHeinrich Hopf
    • Hartmut BrabetzHerbert EckReinhard JiraHeinrich Hopf
    • C08F2/00C08F2/16C08F2/18C08F2/20C08F2/22C08F2/24C08F2/30C08F2/38C08F4/00C08F4/28C08F4/32C08F4/40C08F20/12C08J3/16C08L33/00C08L33/02C08L101/00
    • C08F2/20
    • A process for the preparation of aqueous polymer dispersions comprising polymerizing compounds with unsaturated ethylenic bonds at a temperature of 10.degree. to 100.degree. C. in the presence of an at least partially water-soluble free-radical initiator and at least one starch and/or starch derivative and optionally present conventional adjuvants with the starting mixture containing not more than one third of the total monomers and the remaining monomer being added during the polymerization, the initiators being at least one member of the group consisting of hydrogen peroxide, ketone peroxides and organic hydroperoxides in an amount of at least 30 mmol per kg of total monomer mixture and optionally present water-soluble reducing agents and the starch is water-soluble or gells in water and contains not more than 30% by weight of amylose and the starch derivative is hydrolyzed starch in an amount of at least 0.6% by weight based on the total monomer weight.
    • 一种制备含水聚合物分散体的方法,包括在至少部分水溶性自由基引发剂和至少一种淀粉和/或其中存在下,在10℃至100℃的温度下聚合具有不饱和烯键的化合物 淀粉衍生物和任选存在的常规助剂,起始混合物含有不超过总单体的三分之一,剩余的单体在聚合过程中加入,引发剂是由过氧化氢,酮过氧化物和有机物组成的组中的至少一种 氢过氧化物的量为至少30mmol / kg总单体混合物和任选存在的水溶性还原剂,淀粉是水溶性的或在水中凝胶并且含有不超过30重量%的直链淀粉,淀粉衍生物是 基于总单体重量,水解淀粉的量为至少0.6重量%。