Polymers

Details Polymers Polymers

2006-11-16

2008-11-11

Zemel, Irina S (Department: 1796)

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

Synthetic resins

From sulfur-containing reactant

C528S377000, C528S397000, C528S485000, C528S491000, C528S498000

Reexamination Certificate

active

07449542

ABSTRACT:
A thienylene-arylene polymer comprised of a repeating segment containing at least one 2,5-thienylene unit selected from (I) and (II), and from about one to about three arylene units selected from (IIIa), (IIIb), and/or (IIIc)wherein R is an alkyl or an alkoxy; R′ is halogen, alkyl, or alkoxy, and a and b represent the number of Rs.

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