Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1987-02-27
1989-02-07
IVes, P. C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
4284761, 428516, 428518, 428910, 428483, 428520, 1563798, 427 39, B32B 2700, B32B 2732
Patent
active
048031224
ABSTRACT:
Discrete, self-supporting films are adhered together to form a unique laminate. The surface or outer self-supporting films comprise heat-sealable thermoplastic material, and one interior self-supporting film is adhered to one outer films and comprises an oxygen barrier material. An optional interior film may be adhered to the barrier film to add strength to the laminate. At least one of the films is oriented and the laminate has a thickness of at least about 10 mils. A preferred method of bonding or adhering the films together is by means of corona discharge treatment. The resulting film is characterized by shrinkability and high strength.
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Ives P. C.
Lee, Jr. William D.
Quatt Mark B.
Toney John J.
W. R. Grace & Co.
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