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    • 10. 发明授权
    • Flame retardant brominated styrene-based latices
    • 阻燃溴化苯乙烯基胶乳
    • US5438096A
    • 1995-08-01
    • US243050
    • 1994-05-16
    • Jin-liang WangNicolai A. FavstritskyRichard S. Rose
    • Jin-liang WangNicolai A. FavstritskyRichard S. Rose
    • C08F212/14C08L25/14C08L33/14C08L27/10
    • C08L33/14C08F212/14C08L25/14
    • Improved flame retardant polymer latices are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment, the latices include ring-brominated aromatic monomer units and alkyl acrylate and/or alkyl methacrylate monomer units. In a second embodiment, the latices include these first two types of monomer units and further include third monomer units from unsaturated esters of saturated carboxylic acids, halogen-free aromatic monomers or unsaturated carboxylic or dicarboxylic acid monomers. In a third embodiment, the latices include four monomer units, namely ring-brominated aromatic monomer units, alkyl acrylate/methacrylate monomer units, halogen-free aromatic monomer units and unsaturated carboxylic or dicarboxylic acid monomer units. In one aspect, the halogenated aromatic monomers are present in an amount to provide from 7 to 20 weight percent bromine in the final latex composition. In another aspect, the halogenated aromatic monomers include polybrominated monomers, particularly to provide monomers having an average of at least about 1.5 bromines per monomer unit. The latex polymers have glass transition temperature in the -30.degree. to 30.degree. C. range for coating, paint adhesive, sealant and non-woven binder applications.
    • 公开了改进的阻燃聚合物胶乳,其包含环 - 卤代芳族单体单元和丙烯酸烷基酯/甲基丙烯酸烷基酯单体单元的共聚物,并且其可另外包含至少一种其它单体。 在第一实施方案中,胶乳包括环溴芳族单体单元和丙烯酸烷基酯和/或甲基丙烯酸烷基酯单体单元。 在第二实施方案中,胶乳包括这些前两种类型的单体单元,并且还包括来自饱和羧酸的不饱和酯,无卤素芳族单体或不饱和羧酸或二羧酸单体的第三单体单元。 在第三实施方案中,胶乳包括四个单体单元,即环溴化芳族单体单元,丙烯酸烷基酯/甲基丙烯酸酯单体单元,无卤素芳族单体单元和不饱和羧酸或二羧酸单体单元。 一方面,卤代芳族单体的存在量为最终胶乳组合物中7至20重量%的溴。 另一方面,卤代芳族单体包括多溴单体,特别是提供每单体单元平均具有至少约1.5个溴的单体。 胶乳聚合物的玻璃化转变温度在-30℃至30℃范围内用于涂料,油漆粘合剂,密封剂和无纺粘合剂应用。