Polymeric films

Details Polymeric films Polymeric films

1988-10-04

1991-06-25

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428218, 428515, 525240, B32B 2708

Patent

active

050266101

ABSTRACT:
The invention concerns polymeric films which can be used for twist wrap, for example for confectionery. Films of the invention have a layer of a blend of high density polyethylene with a polyethylene of lower density, a layer of high density polyethylene being provided on each surface of the blend. In general films of the invention will be produced by coextrusion and then uniaxially stretched in the machine direction. It has been possible to cut such films satisfactorily in a direction transverse to the direction of stretch using an oscillating cutter blade of the type used to cut films of reconstituted cellulose.

REFERENCES:
patent: 3936565 (1976-02-01), Good
patent: 4151318 (1979-04-01), Marshall
patent: 4199638 (1980-04-01), McKee
patent: 4303710 (1981-12-01), Bullard et al.
patent: 4346834 (1982-08-01), Mazumdar

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