Production of E-B copolymers with a single metallocene catalyst

Details Production of E-B copolymers with a single metallocene catalyst Production of E-B copolymers with a single metallocene catalyst

1996-12-16

1998-05-19

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526133, 526134, 526153, 526160, 5263486, 526943, C08F 4622, C08F 4623, C08F21002

Patent

active

057537852

ABSTRACT:
A process of polymerizing ethylene with a catalyst using a single metallocene catalyst comprising a bridged metallocene compound having two cyclopentadienyl rings, one substituted with a bulky group in a distal position and one substituted such that a fused ring, substituted or unsubstituted, is formed, which produces a copolymer of ethylene. The metallocene catalyst promotes simultaneous oligomerization of a fraction of ethylene to form a comonomer in situ and copolymerization of the remaining ethylene and the comonomer to form a copolymer.

REFERENCES:
patent: 4861846 (1989-08-01), Conn et al.
patent: 5137994 (1992-08-01), Goode et al.
patent: 5321107 (1994-06-01), Tsutsui et al.
patent: 5329031 (1994-07-01), Miyake et al.

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