Stock material or miscellaneous articles – Hollow or container type article – Nonself-supporting tubular film or bag
Patent
1987-10-27
1989-02-07
Buffalow, Edith
Stock material or miscellaneous articles
Hollow or container type article
Nonself-supporting tubular film or bag
428349, 428412, 4284761, 4284763, 428483, 428500, B65D 6502
Patent
active
048031020
ABSTRACT:
The invention discloses a multiple layer film useful in packaging, and the packages made therefrom. A first layer of the film is a material containing an ester group, a polycarbonate or a polyether block amide copolymer. A second layer of the film is a sealant, preferably polypropylene polymer blended with an elastomeric styrene ethylene butylene styrene copolymer. A third functionally adhesive layer is between the first and second layers. The composition of the third adhesive layer is typically either a polypropylene modified with a carboxy group such as an organic acid or anhydride or a styrene ethylene butylene styrene copolymer.
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Gehrke Russell P.
Johnson, Jr. Richard E.
Raniere Jean E.
Smith Steven L.
American National Can Company
Audet Paul R.
Buffalow Edith
Kendall McGraw Laboratories, Inc.
Wilhelm Thomas D.
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