Thermally stable rod-like polybenzobisthiazole polymers

Details Thermally stable rod-like polybenzobisthiazole polymers Thermally stable rod-like polybenzobisthiazole polymers

1979-04-23

1980-09-30

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

260 308R, 528179, 528183, 528336, 528377, C08G 6932

Patent

active

042257000

ABSTRACT:
Thermally stable rod-like polymers comprised of poly {[benzo-(1,2-d:4,5-d')bisthiazole-2,6-diyl]-1,4-phenylene}, said polymers being referred to as "PBT" and having the structure ##STR1## wherein n has an average value of about 50 to 100, together with the monomeric compound 2,5-diamino-1,4-benzenedithiol dihydrochloride. Said polymers are useful in the preparation of high modulus, high strength materials having excellent thermal stability.

REFERENCES:
patent: 3424720 (1969-01-01), Rudner et al.
patent: 3448080 (1969-06-01), Hirsh
patent: 4051108 (1977-09-01), Helminiak et al.
Polymer Preprints-Helminiak et al., 16(2), (1975), pp. 659-662.
U.A.R.J. Chem-0sman et al., 14 (1971), pp. 475-491.

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