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Polyester resin composition

  • US 5,039,760 A
  • Filed: 02/02/1990
  • Issued: 08/13/1991
  • Est. Priority Date: 02/07/1989
  • Status: Expired due to Fees
First Claim
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1. A moldable heat-resistant polyester resin composition which retains its flexibility when subjected to cyclic thermal conditions, said composition comprising:

  • (A) a branched polyester copolymer which is the polycondensation reaction product of (a) an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b) an aliphatic glycol, and (c) between 0.001 to 1.0 mole % based upon component (a), of a branch-forming compound, and(B) between 0.1 to 10% by weight, based on the total weight of the composition, of a bisoxazoline compound which is one selected from m-phenylenebisoxazoline or p-phenylenebisoxazoline.

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