Fluorine-containing dicarboxylic acids and their novel...

Details Fluorine-containing dicarboxylic acids and their novel... Fluorine-containing dicarboxylic acids and their novel...

2011-08-23

2011-08-23

Seidleck, James (Department: 1765)

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C528S176000, C528S169000, C528S361000, C528S347000, C528S348000

Reexamination Certificate

active

08003749

ABSTRACT:
Disclosed is a fluorine-containing dicarboxylic acid represented by formula (1),wherein n represents an integer of 1-4, and the two carboxylic groups are not adjacent to each other on the aromatic ring. It is possible to obtain a linear polymer compound by reacting the fluorine-containing dicarboxylic acid with a comonomer (e.g., diaminodiol). By thermal cyclization, this linear polymer compound can be converted into another polymer compound having superior characteristics.

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USPTO search report, Apr. 2011.
H. Ito et al., “Fluoropolymer Resists: Fundamentals and Lithographic Evaluation”, Journal of Photopolymer Science and Technology, 2004, pp. 609-619, vol. 17, No. 4.
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U.S. Appl. No. 10/586,183, “Fluorine-Containing Polymerizable Monomer and Polymer Compound Using Same”, Jul. 14, 2006.

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