Crosslinkable rigid-rod benzobisazole polymer

Details Crosslinkable rigid-rod benzobisazole polymer Crosslinkable rigid-rod benzobisazole polymer

1990-11-30

1992-03-24

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528186, 528337, 528342, C08G 7532

Patent

active

050989871

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 Pendent 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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