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US 5,397,838 AGranted
Polyphenylene ether resin compositions
AssigneeGeneral Electric Company
InventorsTakashi Ohtomo, Hiromi Ishida, Hidekazu Kabaya
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Abstract
The present inventions provides polyphenylene ether (PPE)/polyamide (PA) resin compositions having excellent dimensional stability when they absorb moisture, and good mechanical and other properties. Resin compositions of (A) 10-80 wt. parts PPE resins and (B) 90-20 wt. parts PA resins, in which the PA resins (a) are polymers formed by condensation of linear aliphatic diamines with linear aliphatic dicarboxylic acids and aromatic dicarboxylic acids, and (b) have terminal amino group contents of at least 0.4 mequiv/g.
Claims9
A resin composition comprising:
- (A) 10-80 parts by weight polyphenylene ether resin, and
- (B) 90-20 parts by weight polyamide resin said parts by weight of polyphenylene ether and polyamide resin being in parts by weight per 100 weight parts of polyphenylene ether resin and polyamide resin combined;
- said polyamide resin comprising:
- (a) a polymer obtained by condensation of a linear aliphatic diamine with a linear aliphatic dicarboxylic acid and an aromatic dicarboxylic acid;
- and
- (b) said polyamide resin having at least 0.04 milliequivalents/gram terminal amino groups;
- and
- wherein said linear aliphatic diamine is hexamethylenediamine, said linear aliphatic dicarboxylic acid is adipic acid, and said aromatic dicarboxylic acid is terephthalic acid;
- and
- wherein said composition further comprises a hydrogenated styrene-ethylene-butadiene-styrene copolymer and citric acid.
7 more elements
Dependencies are inferred from the claim text.