Thermoplastic sack

Details Thermoplastic sack Thermoplastic sack

1985-11-14

1987-06-30

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428 36, 428516, 264564, B65D 3002, B29C 4100

Patent

active

046770070

ABSTRACT:
A shipping sack having walls formed of uni-axially oriented linear low density polyethylene film wherein said film is produced by blowing and cold drawing said polyethylene at a draw ratio to blow ratio of greater than 1:1, preferably, between 2:1 and 5:1. The sack can be used as a tubular shipping sack for bulky, lightweight material or, if optionally provided with a double inner film of low density polyethylene, as a heavy duty sack. The sacks have improved physical properties.

REFERENCES:
patent: 4169910 (1979-10-01), Graboski
patent: 4547551 (1985-10-01), Bailey et al.
patent: 4576844 (1986-03-01), Murray et al.

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