Thermally stable rod-like polybenzobisthiazole polymers
US4225700A · kind A · utility
32Cited by
3References
2Claims
0Family size
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Key dates
| Filing date | Apr 23, 1979 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Apr 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.