1-olefin stereoblock polymer, and a process for its preparation

Details 1-olefin stereoblock polymer, and a process for its preparation 1-olefin stereoblock polymer, and a process for its preparation

1987-11-25

1989-07-18

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502103, 526351, C08F 464, C08F 1006

Patent

active

048494879

ABSTRACT:
Stereoblock polymers of 1-olefins having a broad uni-, bi-, tri- or multimodal molecular weight distribution are obtained when a catalyst which comprises a chiral metallocene containing bridges and an alumoxane is used for the polymerization of the 1-olefins. The polymers are particularly highly suitable for the production of transparent films.

REFERENCES:
patent: 3472829 (1969-10-01), Claybaugh et al.
patent: 4499247 (1985-02-01), Chiba et al.
patent: 4522982 (1985-06-01), Ewen
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4542199 (1985-09-01), Kaminsky et al.
patent: 4769510 (1988-09-01), Kaminsky et al.

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