Polyester resin composition
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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Abstract
A polyester resin composition exhibiting improved heat-resistant flexibility including (A) a 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.
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Citations
5 Claims
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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:
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(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. - View Dependent Claims (2, 3, 4, 5)
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Specification