Braskem America, Inc.

Sunoco, Inc.

Michael Robert Stephans

Steven Michael Krupinski

Kimberly Miller McLoughlin

William Scott Miller

Kimberly Miller Mcloughlin

Sehyun Kim

Elliot Carnevale

Riley Stevens

A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cmto 0.6 g/cm. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.

Composition comprising semi-crystalline polyolefin and sulfonyl-azide, resulting foams and methods of making the same

A propylene-based polymer composition is characterized by a melt strength at 190&#xb0; C. of at least 20 cN, a melt drawability at 190&#xb0; C. of at least 100 mm/s, and a flexural modulus at room temperature of at least 240,000 psi. The propylene-based polymer composition includes a propylene-based polymer resin having a crystallinity of at least 50% coupled with a poly(sulfonyl azide).

Modified polypropylene and polymer blends thereof

Polypropylene resin compositions are provided that are useful in the production of biaxially oriented polypropylene films (BOPPs). The resins of the present invention are blends of high crystalline (low solubles) polypropylene homopolymer and an ethylene/propylene random copolymer (RCP). These blends can be used to replace standard high solubles BOPP grade polypropylene homopolymers. In addition, the use of high crystalline polypropylene homopolymers in the blends imparts improved stiffness to the finished films while maintaining good processability of the blends.

Resin compositions for producing biaxially oriented polypropylene films

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Pittsburgh, PA, United States of America

Michael Robert Stephans