Heat sealable packaging materials having a peelable, easy-openin

Details Heat sealable packaging materials having a peelable, easy-openin Heat sealable packaging materials having a peelable, easy-openin

1996-07-17

1998-05-05

Jordan, Charles T.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

B29D 2300

Patent

active

H00017272

ABSTRACT:
A heat sealable, co-extruded multi-layer packaging film with a peelable, easy-opening feature, comprising a first layer which comprises a blend of polypropylene and a primary resin. The primary resin may comprise ionomers or other acid copolymers, ethylene vinyl acetate, low density polyethylene, or linear low density polyethylene. The first layer is disposed in contact with a second outer layer, which is a heat sealant layer, comprising polybutylene. The heat sealant layer separates from said first layer when force is applied to the heat seal. The film may be laminated to additional components, and may be heat sealed to itself or to a similar film to form a package.

REFERENCES:
patent: 4944409 (1990-07-01), Busche et al.

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