会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Carboxylated syndiotactic 1,2-polybutadiene
    • 羧基间同立构1,2-聚丁二烯
    • US4960834A
    • 1990-10-02
    • US461955
    • 1990-01-08
    • Lawson G. Wideman
    • Lawson G. Wideman
    • C08C19/00C08C19/34
    • C08C19/00C08C19/34
    • Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated. This invention more specifically discloses a method for preparing carboxylated syndiotactic 1,2-polybutadiene which comprises: (1) reacting syndiotactic 1,2-polybutadiene with hydrogen and carbon monoxide in an organic medium to produce formyl syndiotactic 1,2-polybutadiene, wherein the syndiotactic 1,2-polybutadiene is in the form of small particles having a particle size of less than about 250 microns which are suspended in the organic medium; and (2) reacting the formyl syndiotactic 1,2-polybutadiene with oxygen to produce the carboxylated syndiotactic 1,2-polybutadiene.
    • 间同立构1,2-聚丁二烯可与各种橡胶共混以改善其性能。 例如,间同立构1,2-聚丁二烯可与用于制造轮胎胎面的橡胶共混,以改善轮胎的发热和磨损特性。 间同立构1,2-聚丁二烯与橡胶之间的相互作用和粘附性可以通过间同联的1,2-聚丁二烯的羧化来改善。 在间同立构1,2-聚丁二烯上存在羧酸基团也极大地改善了与橡胶配混剂中通常使用的填料(例如炭黑)的相互作用。 本发明公开了间同立构1,2-聚丁二烯容易且廉价羧化的方法。 本发明更具体地公开了一种制备羧化间规1,2-聚丁二烯的方法,其包括:(1)使间同立构1,2-聚丁二烯与氢和一氧化碳在有机介质中反应,生成甲酰基间同立构1,2-聚丁二烯,其中 间规1,2-聚丁二烯是悬浮在有机介质中的粒径小于约250微米的小颗粒的形式; 和(2)使甲酰基间规1,2-聚丁二烯与氧反应以产生羧化的间同立构1,2-聚丁二烯。
    • 5. 发明授权
    • Method for preparing carboxylated syndiotactic 1,2-polybutadiene
    • 羧基间规1,2-聚丁二烯的制备方法
    • US4912145A
    • 1990-03-27
    • US176577
    • 1988-04-01
    • Lawson G. Wideman
    • Lawson G. Wideman
    • C08C19/00C08C19/34
    • C08C19/00C08C19/34
    • Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated. This invention more specifically discloses a method for preparing carboxylated syndiotactic 1,2-polybutadiene which comprises: (1) reacting syndiotactic 1,2-polybutadiene with hydrogen and carbon monoxide in an organic medium to produce formyl syndiotactic 1,2-polybutadiene, wherein the syndiotactic 1,2-polybutadiene is in the form of small particles having a particle size of less than about 250 microns which are suspended in the organic medium; and (2) reacting the formyl syndiotactic 1,2-polybutadiene with oxygen to produce the carboxylated syndiotactic 1,2-polybutadiene.
    • 间同立构1,2-聚丁二烯可与各种橡胶共混以改善其性能。 例如,间同立构1,2-聚丁二烯可与用于制造轮胎胎面的橡胶共混,以改善轮胎的发热和磨损特性。 间同立构1,2-聚丁二烯与橡胶之间的相互作用和粘附性可以通过间同联的1,2-聚丁二烯的羧化来改善。 在间同立构1,2-聚丁二烯上存在羧酸基团也极大地改善了与橡胶配混剂中通常使用的填料(例如炭黑)的相互作用。 本发明公开了间同立构1,2-聚丁二烯容易且廉价羧化的方法。 本发明更具体地公开了一种制备羧化间规1,2-聚丁二烯的方法,其包括:(1)使间同立构1,2-聚丁二烯与氢和一氧化碳在有机介质中反应,生成甲酰基间同立构1,2-聚丁二烯,其中 间规1,2-聚丁二烯是悬浮在有机介质中的粒径小于约250微米的小颗粒的形式; 和(2)使甲酰基间规1,2-聚丁二烯与氧反应以产生羧化的间同立构1,2-聚丁二烯。