Polyphenylene ether compositions with improved die lip buildup performance
AssigneeGeneral Electric Company
InventorsVijay Mhetar, Jeffery Gary Tenenbaum
Life of this patent
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Abstract
A process for reducing lip buildup during an extrusion of a polyphenylene ether composition comprises adding a linear low density polyethylene compound to the composition, wherein the amount of linear low density polyethylene compound is less than or equal to about 10 percent by weight based on the amount of polyphenylene ether compound in the composition.
Claims18
A method for reducing die lip buildup during extrusion of a polyphenylene ether composition, the method comprising:
- mixing a linear low density polyethylene in an amount greater than or equal to about 1 to less than or equal to about 10 parts by weight for every 100 parts by weight of the polyphenylene ether resin in the composition to form a blend;
- and
- extruding the blend to obtain an extrudate of the polyphenylene ether resin composition, wherein lip build up is reduced relative to polyphenylene ether compositions free of the linear low density polyethylene.
A method for reducing die lip buildup during extrusion of a polyphenylene ether composition, the method comprising:
- mixing a linear low density polyethylene in an amount greater than or equal to about 1 to less than or equal to about 10 parts by weight for every 100 parts by weight of the polyphenylene ether resin in the composition and mixing a high impact polystyrene compound in an amount of about 1 to about 40 parts by weight of the composition to form a blend;
- and
- extruding the blend to obtain an extrudate the polyphenylene ether resin composition, wherein lip build up is reduced relative to polyphenylene ether compositions free of the linear low density polyethylene.
A polyphenylene ether composition comprising:
- a polyphenylene ether compound;
- and
- a linear low density polyethylene compound in an amount greater than or equal to about 1 to less than or equal to about 10 parts by weight for every 100 parts by weight of the polyphenylene ether resin, wherein the linear low density polyethylene compound has an intrinsic viscosity of about 0.33 to about 0.46, a melt flow index less than about 30 grams per 10 minutes as measured in accordance with ASTM D-1238, and a density of about 0.90 to about 0.94 grams per cubic centimeter.
Dependencies are inferred from the claim text.