Method for recycling recovered polycondensation polymer

Details Method for recycling recovered polycondensation polymer Method for recycling recovered polycondensation polymer

2005-12-19

2010-10-05

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Process of treating scrap or waste product containing solid...

C521S040500, C528S480000, C528S50200C, C528S50200C, C528S503000, C422S198000, C422S198000, C422S198000, C425S130000, C264S037100

Reexamination Certificate

active

07807728

ABSTRACT:
Disclosed is a method for recycling a recovered polycondensation polymer which comprises a process wherein a recovered polycondensation polymer is supplied in a molten state to a polymerizer having a porous plate, and then after ejecting the polycondensation polymer through pores of the porous plate, the polymerization degree of the polycondensation polymer is increased under a reduced pressure or in a reduced inert gas atmosphere while dropping the polycondensation polymer along a supporting body.

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