Performance super high flow ethylene polymer compositions

U.S. Patent Number: 5346732

Abstract: Super high flow ethylene polymer compositions comprising at least one linear ethylene polymer are disclosed which have improved processability for use in making thermally formed articles (e.g., thin-walled lids, cups and containers). The compositions have a processing index from about 0.005 KPoise to about 1 KPoise and are particularly useful in thermal forming processes having shear rates of at least 2,000 sec.sup.-1 (e.g., injection molding processes). The compositions can be used to make thin-walled lids and cups and have good environmental stress crack resistance and Gullwing Tear properties.

Inventors: Lai; Shih-Yaw (Sugar Land, TX), Hazlitt; Lonnie G. (Lake Jackson, TX), Chum; Pak-Wing S. (Lake Jackson, TX)

Assignee: The Dow Chemical Company (Midland, MI)

Application Number: 07/924,775

Issued: 1994-09-13

Expired: 2006-09-13

Classes: 428/35.7 ; 525/240; 526/348.2; 526/348.6; 526/352.2

Field of search: 525/240 526/348.2,348.6,352,352.2 428/35.7

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