-
1.发明授权Process for the manufacture of vinyl chloride polymers modified with lactone polymers and product thereof 失效用内酯聚合物及其产物改性的氯乙烯聚合物的制造方法
公开(公告)号：US5003038A
公开(公告)日：1991-03-26
申请号：US491519
申请日：1990-03-12
IPC分类号： C08F14/06 , C08F2/44 , C08F14/00 , C08F283/00 , C08F283/02 , C08G63/08 , C08G63/68 , C08G63/682 , C08G63/82 , C08G63/91
CPC分类号： C08G63/823 , C08F283/02
摘要： In a first stage, a lactone is polymerized by an ionic route in vinyl chloride with the aid of a catalyst consisting of the product, optionally complexed with tetrahydrofuran, of the reaction of an alkylmetal with ethylenically unsaturated alcohol, optionally in the presence of water and, in a second stage, the said vinyl chloride is polymerized by a radical route in an aqueous suspension and in the presence of the polymerization medium originating from the first stage, to which other unsaturated monomers are optionally added.The invention also relates to new modified vinyl chloride polymers consisting of lactone polymers whose number-average molecular weight is less than 5,000, grafted with vinyl chloride polymers.
摘要翻译： 在第一阶段中，借助于由任选与四氢呋喃络合的产物的催化剂，在氯乙烯中通过离子路线聚合内酯，烷基金属与烯键式不饱和醇的反应，任选在水和 在第二阶段中，所述氯乙烯通过自由基途径在水悬浮液中聚合，并且在来自第一阶段的聚合介质存在下，任选地加入其它不饱和单体。 本发明还涉及由数均分子量小于5,000的内酯聚合物组成的新的改性氯乙烯聚合物，用氯乙烯聚合物接枝。
-
2.发明授权Process for the manufacture of vinyl halide polymers modified with polymers of heterocyclic oxygen compounds 失效制备用杂环氧化合物聚合物改性的卤代乙烯聚合物的方法
公开(公告)号：US4826934A
公开(公告)日：1989-05-02
申请号：US96527
申请日：1987-09-15
IPC分类号： C08F2/44 , C08F14/00 , C08F283/00 , C08F283/02 , C08F283/06 , C08G65/02 , C08G65/06 , C08G65/32 , C08G79/10
CPC分类号： C08G79/10 , C08F283/02 , C08F283/06 , C08G65/02
摘要： In a first stage, a heterocyclic oxygen compound is polymerized by an ionic route in a vinyl halide and, in a second stage, the vinyl halide, to which other unsaturated monomers capable of being polymerized by a radical route may be added if desired, is polymerized by a radical route in aqueous dispersion and in the presence of the polymerization mixture originating from the first stage.
摘要翻译： 在第一阶段中，杂环氧化合物在乙烯基卤化物中通过离子路线聚合，并且在第二阶段中，可以根据需要加入能够通过自由基途径聚合的其它不饱和单体的乙烯基卤化物 通过自由基途径在水分散体中聚合，并在起始于第一阶段的聚合混合物存在下进行。
-
3.发明授权Flexible compositions based on vinyl chloride polymers comprising poly-.epsilon.-caprolactone 失效基于包含聚ε-己内酯的氯乙烯聚合物的柔性组合物
公开(公告)号：US4889892A
公开(公告)日：1989-12-26
申请号：US221329
申请日：1988-07-19
摘要： The compositions contain, as vinyl chloride polymers, copolymers of vinyl chloride and of alkyl acrylates in which the alkyl radicals, consisting of linear or branched chains, contain from 1 to 10 carbon atoms and have an initial Shore A hardness not exceeding 85. They are suitable for the production of very diverse flexible articles, especially in the medical field (pouches for blood and for physiological fluids), the motor vehicle field (various profiles and seals) and the building industry (sealing sheets).
摘要翻译： 作为氯乙烯聚合物，组合物含有氯乙烯和丙烯酸烷基酯的共聚物，其中由直链或支链组成的烷基含有1-10个碳原子并且初始肖氏A硬度不超过85.它们是 适用于生产非常多样化的弹性制品，特别是在医疗领域（血液和生理液体袋），机动车辆领域（各种型材和密封件）和建筑工业（密封片）。
-
-
搜索结果
3 条记录 (耗时 0.017 秒)
