Phillips Petroleum Company

Kevin J Hess

Ashish M Sukhadia

Ted M Pettijohn

Rolf L Geerts

Edwin Boudreaux, Jr

Kiplin D Cowan

Mark J Dreiling

Charles D Houser

An ethylene copolymer composition is provided that comprises: (a) an ethylene copolymer that has been produced with a metallocene catalyst system; (b) a crosslinking agent; and (c) a crosslinking coagent. This composition when crosslinked exhibits outstanding physical properties.

Ethylene copolymer compositions

A gel defect detection system for the optical inspection of defects in oriented transparent and translucent sheet. The system utilizes two polarizing filters with adjustable orientations so that the transmission axis is from about 70 degrees to about 110 degrees or from about 80 degrees to about 100 degrees. The system uses these polarization filters to help distinguish gel defects from the surrounding oriented sheet.

Apparatus and process for detecting the presence of gel defects in

An ethylene polymer composition is provided that comprises: (a) an ethylene polymer (b) a crosslinking agent; and (c) a non-aromatic, cyclic, unsaturated, crosslinking co-agent.

Ethylene polymer compositions

A composition is provided, comprising (1) a narrow molecular weight distribution component having an Mw/Mn in the range of about 1.0 to about 2.0 and a weight average molecular weight in the range of about 500 to about 7,500 comprising an ethylene homopolymer; and (2) a broad molecular weight distribution component having an Mw/Mn greater than or equal to about 3.0 and a weight average molecular weight in the range of about 100,000 to about 750,000 comprising and ethylene copolymer; wherein said narrow molecular weight distribution component is present in the polymer composition in an amount of at least about 10 weight percent as based on the total weight of the polymer composition. In another embodiment, the narrow molecular weight distribution component further comprises an ethylene/hexene copolymer.

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Bartlesville, OK, United States of America

Kevin J Hess