Geomembranes

Details Geomembranes Geomembranes

1996-11-25

1998-04-07

Teskin, Fred

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428500, 428516, 525 53, 525240, 525247, 324326, 324557, C08L 2308

Patent

active

057362378

ABSTRACT:
A sheet such as a geomembrane consisting essentially of an extruded in situ blend of two copolymers of ethylene and one or more alpha-olefins having 3 to 8 carbon atoms, said blend having a flow index in the range of about 3 to about 100 grams per 10 minutes; a melt flow ratio in the range of about 50 to about 200; a density in the range of 0.905 to 0.943 gram per cubic centimeter; an Mw/Mn ratio in the range of about 10 to about 50; and a weight average molecular weight in the range of about 180,000 to about 465,000.

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Hoffman et al, Extensional Behavior , etc., Journal of Plastic Film & Sheeting, vol. 10, Jul. 1994, pp. 235 to 247.

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