Biaxially and monoaxially oriented polypropylene cold seal relea

Details Biaxially and monoaxially oriented polypropylene cold seal relea Biaxially and monoaxially oriented polypropylene cold seal relea

1996-02-05

1998-08-25

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428349, 428352, 428354, 428515, 428516, 428910, 53463, 53477, B32B 712, B32B 2732, B65B 5110

Patent

active

057981744

ABSTRACT:
The invention presents a new use for modified polypropylene films, wherein the films are cold sealable for heat sensitive packaging operations. The films comprise in the following order: a cold seal cohesive layer, a core layer, and a cold seal release layer comprising a mixture of about 1 to 80% by weight butene-propylene copolymer and about 99 to 20% by weight butylene-ethylene copolymer.

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