Stretched polyethylene multilayer film

Details Stretched polyethylene multilayer film Stretched polyethylene multilayer film

1992-03-31

1994-07-26

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428518, 428349, 428218, 428910, 428 349, B32B 2732, B32B 2708

Patent

active

053326156

ABSTRACT:
A stretched polyethylene multilayer film prepared by stretching a laminated film comprising a layer of an ethylene-.alpha.-olefin copolymer (A) having a melt index of 6 to 50 g/10 min and a layer of an ethylene-.alpha.-olefin copolymer (B) having a melt index of not less than 0.1 g/10 min and less than 6 g/10 min, by 2 to 7 times, both lengthwise and crosswise, has excellent low-temperature heat-sealability, excellent pin hole resistance, high mechanical strength, including excellent impact resistance, and good applicability to various processing machines, such as laminating machines, bag-making machines and automatic filling machines, and is suitable for use as packaging films and sealant materials for multilayer films.

REFERENCES:
patent: 4356221 (1982-10-01), Anthony et al.
patent: 4399173 (1983-08-01), Anthony et al.
patent: 4444828 (1984-04-01), Anthony et al.
patent: 4551380 (1985-11-01), Schoenberg
patent: 4820557 (1989-04-01), Warren
patent: 4837084 (1989-06-01), Warren

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