Abstract: Compositions of polyamide resins containing a low level of polyamide 66 comonomer are provided, which are useful in producing blown films. A method of forming a blown film includes: extruding a polyamide copolymer to form a polyamide film. The polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate where the caprolactam comprises from 85 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.

Abstract: Copolyesters having improved properties based on 1,4 cyclohexanedimethanol (CHDM) or neopentyl glycol (NPG), and a diacid component containing a combination of two diacids selected from 4,4?-biphenyl dicarboxylic acid, 3,4?-biphenyl dicarboxylic acid, and terephthalic acid; methods of making the copolyesters; and shaped articles made of the copolyesters.

Abstract: Bibenzoate copolyesters are based on (4,4?-biphenyl dicarboxylic acid-co-3,4?-biphenyl dicarboxylic acid) as the diacid component, and on an alicyclic diol compound such as 1,4-cyclohexanedimethanol as a portion of the diol component. Copolyesters are based on 4,4?-biphenyl dicarboxylic acid, and/or 3,4?-biphenyl dicarboxylic acid as the diacid component and may include a multifunctional acid. Copolymers may optionally base an essentially amorphous morphology, high glass transition temperature, high elongation at break, and/or high melting temperature.

Abstract: Compositions of polyamide resins containing a low level of polyamide 66 comonomer are provided, which are useful in producing blown films. A method of forming a blown film includes: extruding a polyamide copolymer to form a polyamide film. The polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate where the caprolactam comprises from 85 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.

Abstract: Provided are cellulose esters useful for inhibiting solution crystallization of drugs. Specific polymers include cellulose esters of formula I: wherein n of the ?-carboxyalkanoyl group, is 3, 4, 6, or 8 to provide a ?-carboxyalkanoyl group chosen from succinoyl, glutaroyl, adipoyl, sebacyl, and suberyl groups; and wherein R is chosen from: a hydrogen atom; and an alkanoyl group chosen from acetyl, propionyl, butyryl, valeroyl, hexanoyl, nonanoyl, decanoyl, lauroyl, palmitoyl, and stearoyl groups; wherein there is a total degree of substitution of the alkanoyl group and the ?-carboxyalkanoyl group of at least 2.0; and wherein the polymer comprises m repeating units where n=1 to 1,000,000, or 10 to 100,000, or 100 to 1,000, such as 1 to 6,000. Embodiments further include compositions comprising cellulose esters and poorly water-soluble drugs, which compositions exhibit greater solubility and stability in solution as compared to the drugs alone.