Crosslinkable rigid-rod benzobisazole polymers

Details Crosslinkable rigid-rod benzobisazole polymers Crosslinkable rigid-rod benzobisazole polymers

1989-07-13

1991-03-19

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528183, 528186, 528342, 528348, 528349, C08G 7532

Patent

active

050012177

ABSTRACT:
There are provided crosslinkable, para-ordered aromatic heterocyclic polymers having repeating groups of the following formula ##STR1## wherein Y is --O--, --S--, or --NH--, n is 1 or 2, and R is an alkyl group having 1 to 4 carbon atoms. In polymers having two pendant R groups, the R groups can be the same or different.

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Tsai, T. T. et al, "Benzobisazole Rigid-Rod Polymers with Pendant Methyl Groups", Polymer Preprints, vol. 29, No. 2, pp. 324-325, 1988.
Chuah, H. H. et al, "Crosslinked Benzobisthiazole Rigid-Rod Copolymers via Labile Methyl Groups", Plastic and Coatings Pmr Sci Proc., Apr. 1989.

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