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公开(公告)号：US4250082A
公开(公告)日：1981-02-10
申请号：US38752
申请日：1979-05-14
IPC分类号： C08L7/00 , C08C1/00 , C08C2/00 , C08J3/215 , C08L21/00 , C08L21/02 , C08L23/00 , C08L101/00 , C08J3/20
CPC分类号： C08J3/215 , C08J2321/00
摘要： A process for the precipitation of a pulverulent filled rubber, which comprises mixing a rubber latex, a rubber solution or a rubber emulsion with a filler suspension, waterglass and a water-soluble aluminum salt at a predetermined pH value of 3.0-3.7, the pH value being kept constant by introduction of acid during the precipitation.
摘要翻译： 一种粉状填充橡胶的沉淀方法，其包括将橡胶胶乳，橡胶溶液或橡胶乳液与填料悬浮液，水玻璃和水溶性铝盐以预定的pH值为3.0-3.7，将pH 在沉淀期间通过引入酸保持恒定值。
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2.发明授权Organolithium-Lewis base polymerization of 1,3-butadiene and novel polybutadienes thus produced 失效由此制备1,3-丁二烯的有机锂 - 路易斯碱聚合和新型聚丁二烯
公开(公告)号：US4022959A
公开(公告)日：1977-05-10
申请号：US583839
申请日：1975-06-04
IPC分类号： C08F136/06 , C08F4/48
CPC分类号： C08F136/06
摘要： Homopolymers of butadiene having a vinyl content which varies substantially and decreasingly along the longitudinal axis of the macromolecule toward an end thereof are produced by conducting an organolithium-Lewis base catalyzed polymerization at a substantially constantly increasing polymerization temperature throughout the polymerization.
摘要翻译： 通过在整个聚合过程中以基本上不断增加的聚合温度进行有机锂 - 路易斯碱催化聚合，制备具有乙烯基含量的均聚物，该乙烯基含量沿着大分子的纵向轴线朝向其末端变化。
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3.发明授权Process for the production of polymers having a broad molecular weight distribution 失效制备具有宽分子量分布的聚合物的方法
公开(公告)号：US4016347A
公开(公告)日：1977-04-05
申请号：US603172
申请日：1975-08-08
CPC分类号： C08F136/06
摘要： 1,3-Butadiene is polymerized to polymers having broad molecular weight distribution in a continuous-adiabatic organolithium catalyzed polymerization in a flow pipe reactor by varying in a periodic manner the ratio of catalyst to 1,3-butadiene being charged to the reactor and mixing the polymers thus produced.
摘要翻译： 1,3-丁二烯在流动管式反应器中在连续绝热的有机锂催化聚合中聚合成具有宽分子量分布的聚合物，周期性地改变催化剂与1,3-丁二烯的比例加入到反应器中并混合 由此生产的聚合物。
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