Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1986-08-29
1988-11-15
Buffalow, Edith
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428349, 428462, 4284761, 428483, 428511, 428516, 229 43, 229 48T, B32B 2732, B32B 2708
Patent
active
047848855
ABSTRACT:
The invention provides a packaging laminate which is heat sealable to polypropylene, high density polyethylene or linear low density polyethylene to provide a strong seal which is cleanly peelable at the heat seal interface under hand pressure. The laminate has at least two layers. A heat sealable surface layer is composed of a melt blend comprising between about 55 and 95 wt. % of a substantially linear polyolefin and between about 5 and about 45 wt. % of a polyolefin rubber. The second layer is a heat stable layer which is structurally stable at temperatures in excess of 350.degree. F. or greater and which has sufficient thickness to provide structural stability during heat sealing.
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Bodenheimer, Jr. Stephen M.
Buffalow Edith
R. J. Reynolds Tobacco Company
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