Production of butadiene polymer专利检索- 橡胶的化学改性专利检索查询-专利查询网

Production of butadiene polymer
申请号	JP5708780	申请日	1980-05-01	公开(公告)号	JPS56155202A	公开(公告)日	1981-12-01
申请人	Nippon Oil Co Ltd;			发明人	HARA HAJIME; KAIYA ATSUSHI; ORII SHINGO; ARAKI YOSHIHIKO;
摘要	PURPOSE: To obtain a resin suitable as a material for the production of laminated sheets for electronic devices having excellent low-temperature punchability, by adding a phenol to a low-MW butadiene polymer prepared by a special polymerization method. CONSTITUTION: A polymer, number-average MW about 200W2,000, is obtained by (co)polymerizing butadiene by using, as an initiator, an alkali metal, e.g., Li, Na or K, or its organometallic compound, e.g., an organosodium of the benzyl (allyl)sodium type and, as a chain transfer agent, an olefin compound of the formula, wherein R 1 WR 4 are each H, a C 1W20 alkyl or aralkyl, e.g., ethylene or isobutylene. Next, a phenol, e.g., phenol or resorcinol, is addition-polymerized to said butadiene polymer in the presence of an acid catalyst, e.g., p-toluenesulfonic acid or aluminum chloride. COPYRIGHT: (C)1981,JPO&Japio
权利要求
说明书全文