Photo-polymerization of vinyl chloride using metallocene catalys

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...

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522187, 522184, 522 66, 526126, C08F 246, C08F 406

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active

060254076

ABSTRACT:
Disclosed is a process for polymerizing vinyl chloride monomer in the presence of light. A mixture is formed of liquid vinyl chloride monomer, preferably about 10 to about 250 ppm of a metallocene catalyst, about 1 to about 2000 moles of an aluminum-containing cocatalyst per mole of catalyst, and up to about 500 moles of a Lewis base per mole of aluminum in the cocatalyst. Selected alkyl groups from the aluminum-containing cocatalyst can be placed on the ends of the poly (vinyl chloride) chains.

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