Process for producing olefin polymer

Details Process for producing olefin polymer Process for producing olefin polymer

1991-04-10

1993-06-15

Schofer, Joseph L.

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

Synthetic resins

Polymerizing in two or more physically distinct zones

526249, 526254, 526259, C08F 430

Patent

active

052199606

ABSTRACT:
A process of producing an olefin polymer by polymerizing an olefin in a multi-stage polymerization in the presence of a catalyst composed of a solid catalyst component containing a halogen and titanium, and an organoaluminum compound, while adding, to a reaction vessel for conducting a second-stage or later polymerization or a portion connecting a former part to a latter part, of the multi-stage polymerization reaction vessels,

REFERENCES:
patent: 4363901 (1982-12-01), Kikuta et al.
patent: 4492787 (1985-01-01), Takashima et al.
patent: 4739015 (1988-04-01), Toyota et al.
patent: 4771103 (1988-09-01), Chiba et al.
patent: 4808667 (1989-02-01), Goko et al.
patent: 4820775 (1989-04-01), Shiga et al.

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