Solid phase polymerization catalyst system

Details Solid phase polymerization catalyst system Solid phase polymerization catalyst system

2009-01-09

2010-11-09

Boykin, Terressa M (Department: 1796)

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

Synthetic resins

From carboxylic acid or derivative thereof

C264S176100, C264S219000, C502S150000, C528S271000, C528S272000

Reexamination Certificate

active

07829656

ABSTRACT:
The invention is a method for making condensation polymers, such as polyethylene terephthalate polyester. The method includes introducing a catalyst system, which includes a coordination catalyst component and an acid component, to a polycondensation reaction.

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