Patent ID: 8273850

Claim:
A composition comprising: (a) a resin comprising a phase-separated, physical blend of: (i) from about 1 to about 99 wt % of a first polyester component selected from the group consisting of: poly(trimethylene-2,6-naphthalate); at least one polyester based on 1,3-propanediol, 2,6-naphthalene dicarboxylic acid or acid equivalent, and at least one C 4 to C 12 aliphatic dicarboxylic acid or acid equivalent, in a molar ratio of 50: 45-47: 3-5; and mixtures thereof; and (ii) from about 99 to 1 wt % of a second polyester component, which is at least one polyester based on 1,3-propanediol, terephthalic acid or acid equivalent, and at least one C 4 to C 12 aliphatic dicarboxylic acid or acid equivalent in a molar ratio of 50: 40-25: 10-25; and (b) a phosphorus-containing stabilizer at a concentration of about 0.3 to about 1 wt % based on the combined weight of the resin and the phosphorus-containing stabilizer, wherein a differential scanning calorimetry (DSC) scan of the composition shows multiple glass transition temperatures (T g ), each T g being characteristic of the individual polyester components of the composition.