Low smoke coating compositions using phosphonitrilic elastomeric

Details Low smoke coating compositions using phosphonitrilic elastomeric Low smoke coating compositions using phosphonitrilic elastomeric

1989-05-24

1990-10-30

Jacobs, Lewis T.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524610, 524500, 525435, 525538, C08L 7908, C08L 8502

Patent

active

049669370

ABSTRACT:
A process for forming a low smoke, low flame spread composition comprising mixing polybenzimidazole fiber; an inorganic powder filler; and a non-fluorinated phosphazene polymer of the formula ##STR1## where x is an integer from about 20 to about 50,000, Q and Q' are the same or different and are C.sub.1 to C.sub.6 linear or branched alkoxy or substituted or unsubstituted aryloxy and Q" is a group having olefinic unsaturation; and a fluorinate phosphazene polymer of the formula ##STR2## where y is an integer from about 20 to about 50,000 Q.sub.f and Q'.sub.f are the same or different and are --OCH.sub.2 (CF.sub.2).sub.n CF.sub.3 or --OCH.sub.2 (CF.sub.2).sub.n CF.sub.2 H where n is the integer 1 to 20 and Q"' is a group having olefinic unsaturation.

REFERENCES:
patent: 3890092 (1975-06-01), Garner
patent: 4064095 (1977-12-01), Oberster et al.

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