Manufacture of homopolymers of 4-methylpentene-1

Details Manufacture of homopolymers of 4-methylpentene-1 Manufacture of homopolymers of 4-methylpentene-1

1975-02-06

1976-07-13

Holler, Alan

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526350, 526905, C08F 452, C08F11014

Patent

active

039693350

ABSTRACT:
Homopolymers of 4-methylpentene-1 are prepared by homopolymerization of 4-methylpentene-1 at a temperature above room temperature, in the presence of hydrogen and in contact with a Ziegler/Natta catalyst system. The polymerization is carried out at a relatively very high temperature and in the presence of an inert gas, the polymerization system being under a specific total pressure, while the partial pressures of the inert gas and the hydrogen have specific values. In this way, homopolymers having large crystalline fractions are obtained in high yields per unit of catalyst system per unit time.

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