Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1994-02-07
1994-09-06
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525420, 525434, 528172, 528337, 528342, 528488, 528490, C08G 7318
Patent
active
053448960
ABSTRACT:
Water-soluble rigid-rod aromatic heterocyclic polymers having repeating units of the formula: ##STR1## wherein n has a value of 0.05 to 1.00, M is an alkali metal, Q is a benzobisazole of the formula ##STR2## wherein X is --S-- or --O--, and R is selected from the group consisting of: ##STR3##
REFERENCES:
patent: 4814399 (1989-03-01), Sansone et al.
patent: 4997892 (1991-03-01), Sansone et al.
Arnold Fred E.
Dang Thuy D.
Bricker Charles E.
Dudson Shelley A.
Kight III John
Kundert Thomas L.
The United States of America as represented by the Secretary of
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