Flame-retardant polyphenylene ether resin composition

Details Flame-retardant polyphenylene ether resin composition Flame-retardant polyphenylene ether resin composition

1979-10-18

1980-10-14

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457PH, 260 457PS, 260 458R, C08K 552, C08K 553

Patent

active

042280648

ABSTRACT:
A flame-retardant polyphenylene ether resin composition comprising (I) 85 to 97% by weight of a resin consisting of (1) 20 to 90% by weight of a polyphenylene ether of the formula (A): ##STR1## where R.sub.1 and R.sub.2 are each alkyl of 1 to 4 carbon atoms and m is the degree of polymerization, and (2) 80 to 10% by weight of a styrene type polymer and (II) 3 to 15% by weight of at least one member of the group consisting of phosphorus-containing compounds of formula (B): ##STR2## where X is a hydrogen atom, a hydroxyl group, an amino group, a halogen atom, an alkyl group of 1 to 10 carbon atoms, an alkoxy group of 1 to 10 carbon atoms, an alkylthio of 1 to 10 carbon atoms, an aryloxy of 6 of 10 carbon atoms or hydroxy substituted aryloxy of 6 to 10 carbon atoms, Y.sub.1 and Y.sub.2 are each an alkyl of 1 to 8 carbon atoms, an alkoxy of 1 to 8 carbon atoms or an aryl group, Z is an oxygen or sulfur atom, n and p are each an integer of 0 to 4 and q is an integer of 0 or 1. Similar compositions are also prepared including styrene type compounded grafted to the polyphenylene ether and including organic phosphates and organic phosphites and/or melamine, benzoguanamine or their methylol or etherified methylol derivatives.

REFERENCES:
patent: 2916510 (1959-12-01), Garner
patent: 3702878 (1972-11-01), Saito
patent: 4113795 (1978-09-01), Izawa et al.

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