Process for the production of propylene copolymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C526S348000, C502S115000, C502S156000

Reexamination Certificate

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07323525

ABSTRACT:
Polymers of propylene with one or two olefin comonomers are produced through the use of a polymerization catalyst supported on a carrier produced by spray crystallization and having a maximum dimension of 55 μm. Copolymers of superior properties are obtained, and the production process is de-snagged.

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