Preparation of homopolymers of ethene and copolymers of ethene w

Details Preparation of homopolymers of ethene and copolymers of ethene w Preparation of homopolymers of ethene and copolymers of ethene w

1986-06-18

1987-12-01

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502113, 526114, 526129, 5263486, 526901, C08F 464, C08F21002

Patent

active

047105526

ABSTRACT:
Homopolymers and copolymers of ethene are prepared using a Ziegler catalyst system comprising (1) a transition metal catalyst component, (2) an organoaluminum catalyst component and (3) an organohalogen catalyst component, by a method in which the transition metal catalyst component (1) employed is a solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxidic substrate (I), as the carrier, with (1.1.2) a solution (II) consisting of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide or titanium trihalide/alcohol complex and, if required, (IIb3) a zirconium tetrahalide to form a suspension (III), evaporating down this suspension to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the solid-phase intermediate (IV) obtained from (1.1) with (1.2.2) a solution of an organoaluminum compound (V) to form a suspension, the resulting suspended solid-phase product (VI) being the transition metal catalyst component (1).

REFERENCES:
patent: 3723348 (1973-03-01), Apotheker et al.
patent: 4098979 (1978-07-01), Maemoto et al.
patent: 4151337 (1979-04-01), Kanoh et al.
patent: 4508842 (1985-04-01), Beran et al.

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