Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1987-06-12
1989-08-22
Buffalow, Edith
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 367, 428349, 428516, 428 348, B29D 2200
Patent
active
048595144
ABSTRACT:
A first web having an ionomer, or ionomer/ethylene vinyl acetate copolymer (EVA) sealant layer, heat sealed to a second web having an EVA/ethylene butene copolymer (EBC)/polypropylene (PP) sealant layer, forms an easily opened package. A layer adjacent the sealant layer of the second web optionally includes PP or ethylene propylene copolymer. With this optional layer, the sealant layer of the first web may comprise a polymeric material which forms strong interweb adhesion upon heat sealing.
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"Easy Open Seals for Flexible Packaging and Lidding", Future-pak '86, Dec. 3-5, 1986, pp. 55 and 61 through 78.
Davis Kent A.
Friedrich Steven G.
Buffalow Edith
Lee, Jr. William D.
Quatt Mark B.
Toney John J.
W. R. Grace & Co.
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