Process for producing polypropylene and stretched polypropylene

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525270, 525321, 525320, C08F29708

Patent

active

051590212

ABSTRACT:
A process for producing polypropylene, which comprises preliminarily polymerizing 3-methylbuten3-1 in the presence of a catalyst system formed from

REFERENCES:
patent: 4210729 (1980-07-01), Hermans et al.
patent: 4547552 (1985-10-01), Toyota et al.
patent: 4551501 (1985-11-01), Shiga et al.
patent: 4603174 (1986-07-01), Okada et al.

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