Polymer comprising unit comprising fluorocyclopentane ring...

Details Polymer comprising unit comprising fluorocyclopentane ring... Polymer comprising unit comprising fluorocyclopentane ring...

2011-04-26

2011-04-26

Gulakowski, Randy (Department: 1766)

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

Synthetic resins

From sulfur-containing reactant

C528S380000, C528S377000, C136S263000, C428S220000, C257S040000, C257SE31001, C257SE51008

Reexamination Certificate

active

07932347

ABSTRACT:
A polymer comprising a repeating unit represented by the following general formula (I). (In the formula, Ar1represents a divalent aromatic hydrocarbon or divalent heterocyclic group, X1, Y1, X2and Y2each independently represent a fluorine atom or alkylthio group, and X1and Y1and X2and Y2may together form a carbonyl or thiocarbonyl group with their bonding carbon atom.)

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Uchida et al. (Advanced Materials, 15, 10, May 16, 2003, p. 785-788).
T. Izumi et al., “Synthesis and Spectroscopic properties of a Series of Beta-Blocked Long Oligothiophenes up to the 96-mer: Revaluation of Effective Conjungation Length”, J. Am. Chem. Soc., (2003), 125, pp. 5286-5287.
Y. Ie et al., “Synthesis and Properties of Hexafluorocyclopenta[c]thiophene-based Oligothiophenes”, The Institute of Scientific and Industrial Research , Osaka University, (Aug. 29, 2005).

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