Celanese Gmbh

John Christiansen

Shau-Zou Lu

Polyethylene terephthalate resin compositions are provided containing fillers; reinforcing agents; or blends of such fillers and agents; alkali metal silicates, carbonates, or bicarbonates; and neopentylglycol dibenzoate. Articles molded from these compositions have high gloss surfaces and heat deflection temperatures when molded at temperatures below 110.degree. C. even without a precompounding drying stage. Surprisingly, the inclusion of neopentylglycol dibenzoate allows the concentration of alkali metal silicate, carbonate, or bicarbonate to be substantially reduced while retaining the high gloss surfaces seen when alkali metal silicates, carbonates, or bicarbonates are used alone at much higher concentrations.

High gloss polyethylene terephthalate reinforced resin compositions

Polyethylene terephthalate resin compositions are provided containing fillers; reinforcing agents; or blends of such fillers and agents and selected alkali metal salts having anions which are oxides of Group IV of the periodic table preferably carbonates and bicarbonates. Articles molded from these compositions have high gloss surfaces and heat deflection temperatures when molded at temperatures below 110.degree. C. even without a precompounding drying stage.

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Edison, NJ, United States of America

John Christiansen