Aqueous artificial resin dispersions free of emulsifying agents
    8.
    发明授权
    Aqueous artificial resin dispersions free of emulsifying agents 失效
    水性人造树脂分散体不含乳化剂

    公开(公告)号:US4373056A

    公开(公告)日:1983-02-08

    申请号:US295544

    申请日:1981-08-24

    CPC分类号: C08F246/00 C08F220/58

    摘要: An aqueous artificial resin dispersion, comprising an aqueous phase and a water-insoluble disperse phase formed from particles containing a copolymer formed in substantial part from a water insoluble or slightly soluble first monomer, wherein the copolymer additionally is formed from a second monomer of the formula ##STR1## wherein R represents hydrogen or methyl, R' represents hydrogen or an alkyl radical with 1 to 12 C-atoms, R" represents an alkyl radical with 7 to 20 C-atoms, and M represents a proton, an alkali metal ion, or an ammonium ion, with the proviso that the aqueous phase is free of low molecular weight, ionic emulsifying agents. Such dispersions are particularly well suited for continuous emulsion polymerization because of the highly stable monomer emulsions formed by mixtures produced according to the invention.

    摘要翻译: 一种水性人造树脂分散体,其包含水相和由非水溶性或微溶性第一单体形成的含有共聚物的颗粒形成的水不溶性分散相,其中所述共聚物另外由式 其中R表示氢或甲基,R'表示氢或具有1至12个C原子的烷基,R“表示具有7至20个碳原子的烷基,M表示质子,碱金属 离子或铵离子,条件是水相不含低分子量离子乳化剂。 由于由根据本发明制备的混合物形成的高度稳定的单体乳液,这种分散体特别适用于连续乳液聚合。

    Multiple phase synthetic resin dispersion
    10.
    发明授权
    Multiple phase synthetic resin dispersion 失效
    多相合成树脂分散体

    公开(公告)号:US5306743A

    公开(公告)日:1994-04-26

    申请号:US683506

    申请日:1991-04-08

    摘要: Aqueous synthetic resin dispersions comprising latex particles having an average particle diameter below 140 nanometers, consisting ofa) 5 to 45 weight percent of a core material having a dynamic glass transition temperature above 60.degree. C. andb) 95 to 55 weight percent of a shell material having a dynamic glass transition temperature below 80.degree. C., whereby the dynamic glass transition temperature of the shell is at least 20 K. below that of the core,which dispersions have a low minimum film forming temperature and give films of low tackiness and high block point.

    摘要翻译: 包含平均粒径低于140纳米的胶乳颗粒的水性合成树脂分散体,由a)5至45重量%的动态玻璃化转变温度高于60℃的芯材料组成,b)95至55重量%的 壳体材料具有低于80℃的动态玻璃化转变温度,由此壳体的动态玻璃化转变温度比芯的动态玻璃化转变温度低至少20K,该分散体具有低的最低成膜温度并且得到低粘度的薄膜 和高阻塞点。