Method of producing modified vinyl ether polymers
    1.
    发明授权
    Method of producing modified vinyl ether polymers 有权
    改性乙烯基醚聚合物的制备方法

    公开(公告)号:US06512058B1

    公开(公告)日:2003-01-28

    申请号:US09531584

    申请日:2000-03-21

    CPC classification number: C08F8/00 C08F8/18 C08F8/30 C08F2810/30 C08F116/18

    Abstract: This invention relates to a method of producing modified vinyl ether polymers, wherein vinyl ether polymers comprising recurring units of general formula (I) where R represents a C2-C4 alkyl group and x denotes an integer from 10 to 1000, are partially transetherified with compounds of general formula Y—OH, wherein Y represents aliphatic and/or cycloaliphatic hydrocarbon groups comprising 5 to 30 carbon atoms, the hydrogen atoms of which can be replaced at least in part by halogen atoms and/or aryl radicals, and/or represents aliphatic, cycloaliphatic and/or aromatic groups with a molecular weight of up to 6000 which contain at least one ether group —O— or an ester group —COO— within the molecule, in the presence of compounds of the platinum metals with the release of the corresponding C2-C4 alcohols, wherein statistically at least one R radical is replaced by a Y radical per molecule of vinyl ether polymer.

    Abstract translation: 本发明涉及一种制备改性乙烯基醚聚合物的方法,其中包含通式(I)的重复单元的乙烯基醚聚合物,其中R表示C 2 -C 4烷基,x表示10至1000的整数,其与化合物部分转化 的通式Y-OH,其中Y表示包含5至30个碳原子的脂族和/或脂环族烃基,其氢原子可至少部分地被卤素原子和/或芳基取代,和/或表示脂族 ,分子量高达6000的脂环族和/或芳族基团,其在分子内含有至少一个醚基-O-或酯基-COO-,在铂金属化合物的存在下释放 相应的C 2 -C 4醇,其中统计学上每个乙烯基醚聚合物每一个Y基团被Y基团代替。

    Process for the production of amorphous methyl vinyl ether homopolymers
having a high molecular weight and narrow molecular weight distribution
    8.
    发明授权
    Process for the production of amorphous methyl vinyl ether homopolymers having a high molecular weight and narrow molecular weight distribution 失效
    制备具有高分子量和窄分子量分布的无定形甲基乙烯基醚均聚物的方法

    公开(公告)号:US5147963A

    公开(公告)日:1992-09-15

    申请号:US422322

    申请日:1989-10-16

    CPC classification number: C08F116/18

    Abstract: What is described herein is a cationic polymerization process for the production of methyl vinyl ether homopolymers which have a relatively high molecular weight and a rather narrow molecular weight distribution. Polymerization is carried out under pressure of an added inert gas so the methyl vinyl ether vapor is effectively absorbed into the liquid phase during the polymerization.

    Abstract translation: 本文描述的是用于生产具有相对高的分子量和相当窄的分子量分布的甲基乙烯基醚均聚物的阳离子聚合方法。 在加入的惰性气体的压力下进行聚合,因此甲基乙烯基醚蒸气在聚合过程中被有效地吸收到液相中。

Patent Agency Ranking