Fire-retardant polycarbonates and polyesters

Details Fire-retardant polycarbonates and polyesters Fire-retardant polycarbonates and polyesters

1990-04-04

1991-06-18

Kight, III, John

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...

528176, 528190, 528191, 528193, 528194, 528196, 528201, 528202, 528204, 524601, 524603, 524604, C08G 6364, C08L 6900

Patent

active

050250655

ABSTRACT:
Fire-retardant polycarbonates, polyester carbonates and polyesters based on dihydroxydiphenyl cycloalkanes ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, preferably phenyl and C.sub.7 -C.sub.12 aralkyl, preferably phenyl-C.sub.1 -C.sub.4 -alkyl, more especially benzyl,

REFERENCES:
patent: 3395119 (1968-07-01), Blaschke et al.
patent: 4281099 (1981-07-01), Maresca
patent: 4334053 (1982-06-01), Freitag et al.
patent: 4506066 (1985-03-01), Medem et al.
patent: 4554309 (1985-11-01), Mark et al.

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