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    • 6. 发明授权
    • Process for the agglomeration of rubber latexes
    • 橡胶胶乳团聚方法
    • US4357270A
    • 1982-11-02
    • US210729
    • 1980-11-26
    • Roberto PippaAndrea De ToffolAgostino LeporiLuigi Mara
    • Roberto PippaAndrea De ToffolAgostino LeporiLuigi Mara
    • C08C1/00C08C1/07C08C1/15C08F6/18C08L7/02
    • C08C1/07C08F6/18
    • Rubbery polymer latexes are agglomerated by mixing them with another latex containing:(1) a polymer, different from that present in the latex to be agglomerated and less lipophilic than the latter, selected from (a) homopolymers of alkyl acrylates and methacrylates in which the alkyl has from 1 to 12 carbon atoms, and (b) copolymers of ethylenically unsaturated monomers capable of forming water-insoluble homopolymers, and(2) a non-ionic surfactant consisting of an addition product of ethylene oxide.The agglomerating latex is added in quantities corresponding to 0.1-20 parts by weight of solid polymer and to 0.0001-0.2 parts by weight of surfactant per 100 parts by weight of the rubbery polymer present in the latex to be agglomerated.A particular use of the agglomerated rubbery polymer latexes is in the production of ABS resins.
    • 橡胶聚合物胶乳通过与另一胶乳混合而与另一胶乳混合,所述胶乳含有:(1)聚合物,其不同于胶乳中存在的聚合物,并且比后者更少亲脂,选自(a)丙烯酸烷基酯和甲基丙烯酸烷基酯的均聚物,其中 烷基具有1至12个碳原子,和(b)能够形成水不溶性均聚物的烯属不饱和单体的共聚物,和(2)由环氧乙烷加成产物组成的非离子表面活性剂。 按照相对于0.1-20重量份固体聚合物的量加入聚结胶乳,并且每100重量份存在于待凝聚胶乳中的橡胶状聚合物为0.0001-0.2重量份表面活性剂。 聚集的橡胶状聚合物胶乳的特殊用途是生产ABS树脂。