Polyphenylene ether resin composition

Details Polyphenylene ether resin composition Polyphenylene ether resin composition

2007-10-16

2007-10-16

Szekely, Peter (Department: 1714)

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...

C524S508000, C528S214000, C528S215000, C528S218000

Reexamination Certificate

active

10517833

ABSTRACT:
A resin composition comprising a polyphenylene ether produced by polymerizing a monomer component consisting of 100 parts by weight of 2,6-dimethylphenol and 0.5 to 7.5 parts by weight of o-cresol in the presence of both a catalyst and an oxygen-containing gas and a flame retardant. When the polyphenylene ether has a molecular weight distribution of 2.8 to 8.0, the resulting resin composition is more excellent in flame retardance, particularly anti-dripping properties in burning. The resin composition is applicable to not only electric and electronic applications necessitating high flame retardance but also other fields of application of polyphenylene ether resins.

REFERENCES:
patent: 4788277 (1988-11-01), Ibe et al.
patent: 52-144098 (1977-12-01), None
patent: 10-204173 (1998-08-01), None
patent: 11-181199 (1999-07-01), None
patent: 11-286542 (1999-10-01), None

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