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公开(公告)号：US4107238A
公开(公告)日：1978-08-15
申请号：US651573
申请日：1976-01-22
IPC分类号： C08F255/10 , C08F279/02
CPC分类号： C08F255/10 , C08F279/02
摘要： Novel graft copolymers of isobutylene-conjugated diene copolymeric backbones are prepared employing polymer lithiation wherein the polymeric lithiated complex is treated with an ether compound prior to a graft copolymerization reaction with styrene monomer whereby improved grafting efficiencies are obtained.
摘要翻译： 使用聚合物锂化制备异丁烯 - 共轭二烯共聚物主链的新型接枝共聚物，其中在与苯乙烯单体接枝共聚反应之前，用醚化合物处理聚合物锂化络合物，从而获得改进的接枝效率。
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公开(公告)号：US4245060A
公开(公告)日：1981-01-13
申请号：US931329
申请日：1978-08-07
CPC分类号： C08F8/46 , C08F8/18 , C08F8/20 , C08F2800/10 , C08F2810/20
摘要： Isobutylene-based elastomers containing 3-15 mol percent enchained cyclic diolefin such as cyclopentadiene, and other comonomers such as isoprene, piperylene and butadiene to allow for chemical modification with anhydride, carboxy, hydroxy, etc. to produce a one package through cure system.
摘要翻译： 含有3-15摩尔％的环状二烯烃如环戊二烯和其它共聚单体如异戊二烯，戊间二烯和丁二烯的异丁烯基弹性体，以允许用酸酐，羧基，羟基等进行化学修饰，以通过固化体系产生一个包装。
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公开(公告)号：US4254240A
公开(公告)日：1981-03-03
申请号：US74156
申请日：1979-09-10
申请人： Neil F. Newman , Robert Roper , Roger K. West
发明人： Neil F. Newman , Robert Roper , Roger K. West
CPC分类号： C08F8/20
摘要： A solution of butyl rubber in an inert solution such as n-hexane is halogenated in a continuous process using bromine chloride vapor and high intensity mixing means for both the halogenation and subsequent neutralization steps. Adjustment of the mole ratio of bromine chloride to isoprene, where an isobutylene-isoprene butyl copolymer is used, to less than about 1.5 to 1 prevents overhalogenation and significant molecular weight loss, while the use of bromine chloride vapor results in improved process safety.The doubly halogenated product, containing both bromine and chlorine in its structure can be vulcanized in the absence of sulfur, e.g., with zinc oxide. It is particularly useful in rubber compositions where the singly halogenated product is employed, but demonstrates product performance advantages compared to both brominated butyl rubber and chlorinated butyl rubber.
摘要翻译： 丁基橡胶在惰性溶液如正己烷中的溶液在连续方法中被卤化，使用溴氯化物蒸气和用于卤化和随后的中和步骤的高强度混合装置。 使用异丁烯 - 异戊二烯丁基共聚物的氯化异丁烯与异戊二烯的摩尔比（其中使用异丁烯 - 异戊二烯丁基共聚物）的调节小于约1.5比1可以防止过度卤化和显着的分子量损失，而溴氯化物蒸汽的使用导致改进的工艺安全性。 在其结构中含有溴和氯的双卤代产物可以在不存在硫的情况下硫化，例如用氧化锌。 在使用单卤代产物的橡胶组合物中特别有用，但与溴化丁基橡胶和氯化丁基橡胶相比，它们具有优异的产品性能。
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公开(公告)号：US4228254A
公开(公告)日：1980-10-14
申请号：US931327
申请日：1978-08-07
CPC分类号： C08F8/00
摘要： Isobutylene-based elastomers containing 3-15 mol percent enchained cyclic diolefin such as cyclopentadiene, and other comonomers such as isoprene, piperylene and butadiene to allow for chemical modification with anhydride, carboxy, hydroxy, etc. to produce a one package through cure system.
摘要翻译： 含有3-15摩尔％的环状二烯烃如环戊二烯和其它共聚单体如异戊二烯，戊间二烯和丁二烯的异丁烯基弹性体，以允许用酸酐，羧基，羟基等进行化学修饰以通过固化体系产生一个包装。
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公开(公告)号：US4130519A
公开(公告)日：1978-12-19
申请号：US892645
申请日：1978-04-03
申请人： Robert Roper , Neil F. Newman , Pierre Hous
发明人： Robert Roper , Neil F. Newman , Pierre Hous
IPC分类号： C08L23/00 , C08K3/16 , C08K3/22 , C08K5/06 , C08K5/09 , C08K5/098 , C08K13/02 , C08L1/00 , C08L23/28 , C08L27/00 , C08L101/00 , C08K5/10
摘要： A stabilized halogenated butyl rubber composition comprises halogenated butyl rubber, an alkali metal or alkaline earth metal carboxylate, an ether and an oxide or hydroxide of a Group IIA metal as exemplified by halogenated butyl rubber containing both bromine and chlorine stabilized with a composition comprising calcium stearate, polyethoxylated adducts of sorbitol esterified with from 1 to 6 moles of oleic acid and mixtures thereof, and calcium hydroxide.Halogenated butyl rubbers stabilized in the manner disclosed exhibit improved resistance to discoloration upon high temperature exposure, such as during the drying of polymers in the course of manufacture.
摘要翻译： 稳定化的卤化丁基橡胶组合物包含卤化丁基橡胶，碱金属或碱土金属羧酸盐，醚和IIA族金属的氧化物或氢氧化物，例如卤化丁基橡胶，其含有用包含硬脂酸钙的组合物稳定的溴和氯 ，用1至6摩尔油酸酯化的山梨糖醇的聚乙氧基化加合物及其混合物，和氢氧化钙。
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