Patent ID: 8470915

Claim:
A thermoplastic composition comprising: (a) about 1,000 to about 5,000 parts per million (ppm), based on the total weight of the thermoplastic composition, of an acetal compound conforming to the structure of Formula (I): wherein R 1 is selected from the group consisting of alkyl groups, alkenyl groups, alkoxy groups, and alkyl halide groups; wherein R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 are each independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, alkenyl groups, aryl groups, and halogens; and wherein R 12 is a hydroxyalkyl group selected from the group consisting of —CH 2 OH and —CHOHCH 2 OH; (b) about 100 to about 5,000 ppm, based on the total weight of the thermoplastic composition, of at least one fatty acid amide compound conforming to the structure of one of Formulae (IV)-(VII): wherein R 14 , R 15 , R 16 , and R 18 are independently selected from the group consisting of C 7 -C 27 alkyl groups and C 7 -C 27 alkenyl groups, R 17 is selected from the group consisting of C 8 -C 28 alkyl groups and C 8 -C 28 alkenyl groups, and R 19 is selected from the group consisting of —CH 2 CH 2 OH and —CH 2 CH(CH 3 )OH; and (c) at least one thermoplastic polypropylene polymer, the sum of the ppm concentration of the acetal compound and the fatty acid amide is from about 2,000 to about 5,000.