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
    • 26. 发明授权
    • Living cationic polymerization process
    • 活性阳离子聚合工艺
    • US4943616A
    • 1990-07-24
    • US445170
    • 1989-12-04
    • Munmaya K. MishraAkhtar Osman
    • Munmaya K. MishraAkhtar Osman
    • C08F4/34C08F10/10C08F210/10
    • C08F210/10C08F10/10Y10S525/918
    • A polymerization process is provided for producing a terminally functional polymer which comprises introducing a monomer charge, a Lewis acid and an organic peroxy compound into a suitable reaction vessel and polymerizing the monomer charge at a temperature of from about 0.degree. to about -80.degree. C. to form the terminally functional polymer, wherein the monomer charge comprises isobutylene and the organic peroxy compound is charged in an amount of from about 10.sup.-4 to about 10.sup.-1 moles per mole of the isobutylene. In a preferred embodiment, the monomer charge additionally comprises vinylidene aromatic or diolefin monomers. In another preferred embodiment the monomer charge comprises the sequential addition of isobutylene and vinylidene aromatic or diolefin monomers. In a further preferred embodiment said reaction vessel is additionally charged with an electron door having an electron door number of from about 22 to about 50 the amount of said electron door being from about 10.sup.-4 to about 10.sup.-1 moles of said isobutylene. The invention also provides a novel catalyst system comprising an organic peroxy compund and a Lewis acid for the polymerization of isobutylene or monomer mixtures containing isobutylene.
    • 提供聚合方法用于制备末端官能聚合物,其包括将单体电荷,路易斯酸和有机过氧化合物引入合适的反应容器中并在约0至约-80℃的温度下使单体电荷聚合 形成末端官能化聚合物,其中单体电荷包含异丁烯,有机过氧化合物的加入量为每摩尔异丁烯约10-4至约10-1摩尔。 在优选的实施方案中,单体电荷另外包含亚乙烯基芳族或二烯烃单体。 在另一个优选实施方案中,单体电荷包括顺序加入异丁烯和亚乙烯基芳族或二烯烃单体。 在另一个优选的实施方案中,所述反应容器另外装有电子门数为约22至约50的电子门,所述电子门的量为约10-4至约10-1摩尔所述异丁烯。 本发明还提供了一种新颖的催化剂体系,其包含有机过氧化合物和路易斯酸,用于聚合异丁烯或含有异丁烯的单体混合物。