Accession Number : ADD013705
Title : Polybenzobisthiazole from Aryloxy Naphthalic Diacid.
Descriptive Note : Patent, Filed 16 Apr 86, patented 24 Nov 87,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC
Personal Author(s) : Tsai, Tsu-Tzu ; Arnold, Fred E
Report Date : 24 Nov 1987
Pagination or Media Count : 4
Abstract : This invention relates to polymers, and in particular to p-benzobisoxazole, p-benzobisthiazole and p-benzobisimidazole polymers which contain 2,6-naphthalic segments. Considerable research efforts in recent years have been directed toward the synthesis of extended chain or rod-like polymers. The unique ordering properties of these polymers into liquid crystalline solutions has led to the preparation of extremely high modulus/high strength fibers. It is an object of the present invention to provide novel p-benzobisoxazole, p-benzobisthiazole and p-benzobisimidazole polymers. It is another object of the present invention to provide novel monomers useful in preparing the above polymers. Other objects and advantages of the present invention will become apparent to those skilled in the art upon 30 consideration of the following disclosure.
Descriptors : *BENZENE COMPOUNDS, *POLYMERS, *THIAZOLES, *PATENTS, CHAINS, LIQUID CRYSTALS, MONOMERS, SOLUTIONS(GENERAL), SYNTHESIS(CHEMISTRY)
Subject Categories : Polymer Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE