1
Ananda Mohan Chatterjee, James Douglas McCullough Jr: Compositions containing impact copolymers made from a blend of a homopolymer phase and a rubber phase having a high ethylene content. Union Carbide Chemicals & Plastics Technology Corporation, P A Doody, March 6, 2001: US06197886 (37 worldwide citation)

The present invention relates to compositions containing impact copolymer compositions that are a blend of a propylene polymer phase and a rubber phase in which the ethylene content of the rubber phase is between about 75 to about 95% by weight. The rubber content of the impact copolymer composition ...


2
James Douglas McCullough Jr: Polypropylene impact copolymers with high clarity. Union Carbide Chemicals & Plastics Technology Corporation, P A Doody, January 18, 2000: US06015854 (15 worldwide citation)

The present invention teaches propylene-ethylene copolymers of about 5 to about 100 dg/min melt flow that have a homopolymer phase combined with a copolymer rubber phase in which the ethylene content of the rubber is between about 75 to about 95% w and a clarity of greater than 25%. The rubber conte ...


3
Chin Yuan George Ma, James Douglas McCullough Jr: Pelletizing aid for polymers. Shell Oil Company, Y Grace Tsang, August 14, 2001: US06274656 (12 worldwide citation)

This invention relates to the use of a synergistic nucleating package to promote the rapid crystallization of polymers from the melt. This facilitates the ease of fabrication of extruded or molded articles or otherwise shaped objects formed from the melt, including pelleted product from extrusion.


4
James Douglas McCullough Jr: Process for deactivation of polyolefin compositions utilizing carbon dioxide as a deactivation agent. Union Carbide Chemicals & Plastics Technology Corporation, P A Doody, P W Leuzzi, February 8, 2000: US06022946 (5 worldwide citation)

A method of deactivating a polyolefin polymer is disclosed whereby the polymer is contacted in a post-reactor vessel with CO.sub.2 and then an acid acceptor and at least one secondary antioxidant are incorporated into the deactivated polyolefin polymer. The resulting product displays improved color ...


5
James Douglas McCullough Jr, Jackson Gordon Bowers: Modified polypropylene impact copolymer compositions. Union Carbide Chemicals & Plastics Technology Corporation, Reiskind, January 27, 1998: US05712344 (4 worldwide citation)

Modified polypropylene impact copolymer compositions containing a base polypropylene impact copolymer and a certain modifier have good impact strength, toughness and resistance to stress whitening. The modifier includes a hydrogenated block copolymer having at least one polymeric block of predominan ...


6
Mark Gregory Goode, Kersten Anne Erickson, James Douglas McCullough Jr: Process for producing polypropylene impact block copolymers. Andrew R Reiskind, April 7, 1998: USH0001722

A process for producing a polypropylene impact copolymer by polymerizing propylene and optionally a monomer selected from the group consisting of ethylene, butene-1, pentene-1, and hexene-1 in a first reactor in the presence of a titanium, magnesium, halogen, and a inside electron donor catalyst, an ...