Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1977-12-22
1980-12-30
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
252429B, 252429C, 526128, 526139, 5263485, 5263486, 526352, C08F 402, C08F 1002
Patent
active
042424798
ABSTRACT:
A process for polymerizing ethylene or copolymerizing ethylene with an .alpha.-olefin in the presence of a catalyst comprising: (A) a solid catalyst ingredient obtained by contacting (1) a solid reaction product prepared by reacting (a) a reaction product of an aluminum trihalide with an organic compound containing an Si--O bond and/or an ether compound and (b) a magnesium alcoholate with (2) a tetravalent titanium compound containing at least one halogen atom or further (3) an electron donor compound, and (B) an organo-aluminum compound.
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patent: 3987233 (1976-10-01), Sato et al.
patent: 4071672 (1978-01-01), Kashiwa
patent: 4085276 (1978-04-01), Toyota et al.
patent: 4107416 (1978-08-01), Giannini et al.
Hosokawa Teruo
Sakashita Kiichiro
Yokota Yoshihisa
Showa Yuka Kabushiki Kaisha
Smith Edward J.
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