Stretch pallet wrap film materials

Details Stretch pallet wrap film materials Stretch pallet wrap film materials

1978-11-16

1980-09-16

Griffin, Ronald W.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 23H, 525222, 525227, 525240, C08L 2316

Patent

active

042229138

ABSTRACT:
Improved stretch pallet wrap films are prepared from blend compositions comprising from approximately 79% to 98% by weight of a high molecular weight ethylene-vinyl acetate copolymer, from approximately 1% to 18% by weight of a polypropylene copolymer and from approximately 0.3% to 5% by weight of a tackifier agent which may be a glycerol mono fatty acid, a sorbitan mono fatty acid, castor oil or expoxidized soya, with the ethylene-vinyl acetate copolymer having a vinyl acetate comonomer content of between approximately 8% and 20% and the polypropylene copolymer having a refractive index substantially similar to that of the ethylene-vinyl acetate copolymer. Such films exhibit improved properties for the stretch wrapping of palletized loads of boxes, bags and the like.

REFERENCES:
patent: 3433573 (1969-03-01), Holladay et al.
patent: 3896069 (1975-07-01), Kosaka et al.
patent: 3932563 (1976-01-01), Argurio et al.
patent: 3952073 (1976-04-01), Isaka et al.
patent: 4073782 (1978-02-01), Kishi et al.
patent: 4116914 (1978-09-01), Coran et al.

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