Continuous bulk polymerization and esterification process
    2.
    发明授权
    Continuous bulk polymerization and esterification process 有权
    连续本体聚合和酯化过程

    公开(公告)号:US06355727B1

    公开(公告)日:2002-03-12

    申请号:US09347035

    申请日:1999-07-02

    IPC分类号: C08F2004

    摘要: A continuous bulk polymerization and esterification process includes continuously charging into a reaction zone at least one ethylenically unsaturated acid-functional monomer and at least one linear or branched chain alkanol having greater than 11 carbon atoms. The process includes including maintaining a flow rate through the reaction zone sufficient to provide an average residence time of less than 60 minutes and maintaining a temperature in the reaction zone sufficient to produce a polymeric product incorporating at least some of the alkanol as an ester of the polymerized ethylenically unsaturated acid-functional monomer. The polymeric product is used in various processes to produce water-based compositions including emulsions and dispersions such as oil emulsions, wax dispersions, pigment dispersions, surfactants and coatings which contain the polymeric product. A polymeric surfactant includes at least one ethylenically unsaturated acid-functional monomer which has been radically incorporated into the polymeric surfactant and at least one ester of the incorporated ethylenically unsaturated acid-functional monomer which has a linear or branched chain alkyl group with greater than 11 carbon atoms. The molar critical micelle concentration of the polymeric surfactant is less than 1.0×10−2 moles/liter. Aqueous 2 percent neutralized solutions of certain polymeric surfactants have a surface tension of less than 45 mN/m at 30° C. and exhibit a decrease in surface tension of at least 5 mN/m as the temperature warms from 30° C. to 50° C.

    摘要翻译: 连续本体聚合和酯化方法包括将至少一种烯属不饱和酸官能单体和至少一种具有大于11个碳原子的直链或支链链烷醇连续地加入到反应区中。 该方法包括保持通过反应区的流速足以提供小于60分钟的平均停留时间,并保持反应区中的温度足以产生聚合产物,该聚合物与至少一些烷醇作为 聚合的烯键式不饱和酸官能单体。 聚合物产品用于各种工艺中以生产水性组合物,包括乳液和分散体,例如油乳剂,蜡分散体,颜料分散体,表面活性剂和含有聚合产物的涂料。 聚合物表面活性剂包括至少一种烯键式不饱和酸官能单体,其已经自由地掺入聚合物表面活性剂和至少一种具有直链或支链烷基与大于11个碳的烯键式不饱和酸官能单体的酯 原子 聚合物表面活性剂的摩尔临界胶束浓度小于1.0×10 -2摩尔/升。 某些聚合物表面活性剂的2%中和水溶液的表面张力在30℃时的表面张力小于45mN / m,并且随着温度从30℃升至50℃,表面张力降低至少5mN / m C。