Crystalline copolymers of propylene

Details Crystalline copolymers of propylene Crystalline copolymers of propylene

1994-07-25

1996-05-14

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526348, 526160, C08F21016, C08F 4642

Patent

active

055168663

ABSTRACT:
Novel crystalline copolymers of propylene with minor proportions of ethylene and/or alpha-olefins, endowed with very good mechanical properties, a low melting point and a limited solubility in xylene at 25.degree. C., and the process for preparing them by means of the polymerization of mixtures of propylene with ethylene and/or alpha-olefins of suitable composition, by using catalysts obtained from stereorigid and chiral compounds of zirconium, and methylalumoxanic compounds.

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Dissertation of Klaus Kulper, "Polymerization Characteristics of Soluble, Ring-substituted Zirconocene (IV) Dichlorides and Methylalumoxane and of other Catalyst with respect to 1-olefins", Hamburg, Germany, pp. 1-179, 1985.

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