Three layer film having a core layer of low pressure, low densit

Details Three layer film having a core layer of low pressure, low densit Three layer film having a core layer of low pressure, low densit

1981-06-03

1982-12-21

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

264173, 264176R, 428212, 428213, 428218, 428220, 428332, 428336, 428339, 428516, B32B 702, B28B 320, B32B 2708, B65D 100

Patent

active

043649815

ABSTRACT:
A flexible co-extruded three layer film comprising outer layers of high pressure, low density polyethylene and a core layer of low pressure, low density polyethylene. The film is produced by a blown film tubular extrusion process at conventional rates and temperature and yet is free of melt fracture even though the low pressure, low density polyethylene would otherwise exhibit melt fracture.

REFERENCES:
patent: 4011382 (1977-03-01), Levine et al.
patent: 4126262 (1978-11-01), Thompson et al.
patent: 4151318 (1979-04-01), Marshall
patent: 4160053 (1979-07-01), Clayton
patent: 4169910 (1979-10-01), Graboski
"Mobilrap X Premium Quality Stretch Film", Nov. 1978, Mobil Corp., 150 E. 42nd St., N.Y., N.Y. 10017.

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