null专利检索-..用含不止一个碳—碳双键的脂肪族化合物的聚合物专利检索查询-专利查询网


申请号	BR8700255	申请日	1987-01-21	公开(公告)号	BR8700255A	公开(公告)日	1987-12-08
申请人	GOODYEAR TIRE & RUBBER;			发明人	BELL ANTHONY JOSEPH;
摘要	Short fibers of syndiotactic 1,2-polybutadiene are utilized in making tires that have improved resistance against heat build-up and improved wear characteristics. The preparation of syndiotactic 1,2-polybutadiene in fibrous form has traditionally involved an extrusion and stretching step. However, the technique of the present invention circumvents the necessity of hot mill flexing and/or extrusion in making fibrous syndiotactic 1,2-polybutadiene. The present invention more specifically involves a process for preparing syndiotactic 1,2-polybutadiene fibers directly comprising polymerizing 1,3-butadiene monomer in the presence of (1) a catalyst composition which is comprised of (a) a cobalt compound and (b) an organoaluminum compound; (2) carbon disulfide; and (3) at least one member selected from the group consisting of liquid polymers and naphthenic oils.
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