Multi-layer polyolefin shrink film

Details Multi-layer polyolefin shrink film Multi-layer polyolefin shrink film

1978-04-17

1980-03-18

Ives, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428412, 428516, 428518, 428520, 428910, 428 35, 156229, 15624411, 15624424, 525240, B32B 702, B32B 2708

Patent

active

041940393

ABSTRACT:
The multi-layer polyolefin shrink film of this invention provides shrink tensions, optical clarity, cuttability, sealability, shrink temperature range, and tear resistance heretofore unobtainable in an oriented, monolayer polyolefin material. The preferred film has three layers in which the core layer comprises a blend of ethylene-vinyl acetate copolymer with ethylene-butylene copolymer and each skin layer comprises ethylene-propylene copolymer.

REFERENCES:
patent: 3595735 (1971-07-01), Tyrrell
patent: 3634553 (1972-01-01), Foglia et al.
patent: 3673050 (1972-06-01), Newman, Jr. et al.
patent: 3891008 (1975-06-01), D'Enremont
patent: 4078020 (1978-03-01), Rose et al.

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