Polytrimethylene terephthalate (PTT) derived from...

Details Polytrimethylene terephthalate (PTT) derived from... Polytrimethylene terephthalate (PTT) derived from...

2011-03-08

2011-03-08

Seidleck, James (Department: 1765)

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

Synthetic resins

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

C521S040000, C521S040500, C521S041000, C521S044000, C521S048000, C528S271000, C528S272000, C528S279000, C528S280000, C528S283000, C528S300000, C528S480000, C528S491000, C528S495000

Reexamination Certificate

active

07902264

ABSTRACT:
A composition comprising a polytrimethylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and (2) contains at least one residue derived from the polyethylene terephthalate component. Methods for making such copolymers and articles made from such copolymers.

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