Varnish compositions for electrical insulation and method of...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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Details

C525S392000, C528S495000, C528S496000, C528S497000, C528S498000

Reexamination Certificate

active

08058359

ABSTRACT:
A process for preparing a redistributed poly(phenylene ether), comprising reacting a poly(phenylene ether) in a reactive diluent monomer with a polyhydric phenol in the presence of a redistribution catalyst to form a composition comprising a redistributed poly(phenylene ether) in the reactive monomer diluent. The redistributed poly(phenylene ether) exhibits an intrinsic viscosity in the range of about 0.06 deciliters per gram to about 0.25 deciliters per gram, measured in chloroform at 25° C. The redistributed poly(phenylene ether) can be functionalized and admixed with unsaturated resin such as an unsaturated polyester resin or vinyl ester resin to obtain a varnish composition that, when cured, can form an electrically insulative thermoset.

REFERENCES:
patent: 3210384 (1965-10-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3367978 (1968-02-01), White
patent: 3496236 (1970-02-01), Cooper et al.
patent: 4234706 (1980-11-01), White
patent: 4521584 (1985-06-01), Heitz et al.
patent: 5213886 (1993-05-01), Chao et al.
patent: 5880221 (1999-03-01), Liska et al.
patent: 6403229 (2002-06-01), Yeager et al.
patent: 6455663 (2002-09-01), Braat et al.
patent: 6558783 (2003-05-01), Kato et al.
patent: 6569982 (2003-05-01), Hwang et al.
patent: 6835786 (2004-12-01), Ishii et al.
patent: 6897282 (2005-05-01), Freshour et al.
patent: 6995195 (2006-02-01), Ishii et al.
patent: 7329708 (2008-02-01), Birsak et al.
patent: 7858726 (2010-12-01), Onizuka et al.
patent: 2007/0066710 (2007-03-01), Peters et al.
patent: 2000046272 (2000-08-01), None

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