METHOD OF MANUFACTURE OF POLYESTER MOLDING COMPOSITIONS AND ARTICLES PRODUCED THEREFROM
First Claim
1. A thermoplastic molding composition comprising to about 90 wt. % of a polyester;
- about 8 to about 48 wt. % of a polyetherimide; and
about 2 to about 25 wt. % of a high rubber graft impact modifier comprising at least about 40 wt. % rubber, the amount of the polyester, polyetherimide, and impact modifier being based on their total combined weight.
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Accused Products
Abstract
A thermoplastic molding composition comprises a resin composition having 50 to about 90 weight percent of a polyester, about 8 to about 48 weight percent of a polyetherimide, about 2 to about 25 weight percent of a high rubber graft impact modifier, each based on the total resin composition, and up to about 15 weight percent of a particulate filler. A making the composition comprises pre-melt compounding a polyester, a polyetherimide, and a high rubber graft impact modifier to form a pre-compounded blend, wherein the pre-compounded blend has a Tg of greater than or equal to about 110° C.; and dry-blending a crystallized polyester with the pre-compounded blend to form the molding composition. Such molding compositions are particularly useful in blow-molding containers for liquids such as beer.
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Citations
12 Claims
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1. A thermoplastic molding composition comprising to about 90 wt. % of a polyester;
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about 8 to about 48 wt. % of a polyetherimide; and
about 2 to about 25 wt. % of a high rubber graft impact modifier comprising at least about 40 wt. % rubber, the amount of the polyester, polyetherimide, and impact modifier being based on their total combined weight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification