公开(公告)号：WO2017116270A1

公开(公告)日：2017-07-06

申请号：PCT/RU2015/000961

申请日：2015-12-30

申请人： PUBLIC JOINT STOCK COMPANY "SIBUR HOLDING"

发明人： KORYSTINA, Ludmila Andreevna ,  ZHURIKHINA, Marina Appolonovna ,  SUKHAREV, Alexander Viktorovich ,  MAXIMOV, Denis Alexandrovich ,  RAKHMATULLIN, Artur Igorevich

IPC分类号： C08F236/10 ,  C08F2/44 ,  C08L9/06

CPC分类号： C08F2/44 ,  C08F236/10 ,  C08L9/06 ,  C08F2/24

摘要： The invention relates to a method for producing diene-vinylaromatic copolymer rubbers modified with a polar comonomer, by emulsion copolymerization of conjugated dienes, vinylaromatic monomers, and polar comonomers in the presence of a radical initiator, a molecular-weight regulator, and an emulsifying agent, followed by the separation of a rubber from latex. In the method provided by the invention an antioxidant is added to the vinylaromatic monomer to be polymerized, in the form of a sterically hindered phenol in an amount of from 0.2 to 0.6 wt.%, and vinyl derivatives modified with polar groups of various classes are used as the modifying polar comonomer, wherein the polar monomer is added batchwise during the process: a first portion in an amount of 0.5 to 1.0 weight part is added together with hydrocarbon charge, and a second portion and a third portion are added in an amount of 0.5 to 2.5 weight part at monomer conversions of from 30 to 40 and from 50 to 60%, respectively. The method provided by the invention may be used in the synthetic rubber production and tire industry and allows for reduction of power consumption during production of rubbers having improved physical and mechanical properties in vulcanizates thereof.

摘要翻译： 本发明涉及一种生产用极性共聚单体改性的二烯 - 乙烯基芳族共聚物橡胶的方法，通过共轭二烯，乙烯基芳族单体和极性共聚单体在自由基引发剂，分子 重量调节剂和乳化剂，然后从胶乳中分离橡胶。 在本发明提供的方法中，将抗氧化剂以0.2-0.6重量％的空间位阻酚的形式加入要聚合的乙烯基芳族单体中，用各种极性基团改性的乙烯基衍生物为 用作改性极性共聚单体，其中极性单体在该方法中间歇地加入：将第一部分以0.5至1.0重量份的量与烃进料一起加入，并且第二部分和第三部分以一定量 在单体转化率分别为30-40和50-60％时为0.5-2.5重量份。 本发明提供的方法可以用于合成橡胶生产和轮胎工业中，并且允许在生产其硫化产品中具有改进的物理和机械性能的橡胶生产期间降低功耗。