Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1978-04-17
1980-04-01
Ives, P. C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428484, 428486, 428467, 428497, 428514, 428516, 428518, 427416, 4274122, B32B 702, B32B 904, B65D 8572
Patent
active
041962478
ABSTRACT:
A flexible heat sealable packaging material including a flexible web of substrate material, a normally tacky heat sealable wax composition on the surface of the substrate, and a non-blocking coating applied as a hot melt over the heat sealable layer which has good release properties with respect to itself and to the non-coated side of the substrate. The non-blocking coating melts at the heat sealing temperatures to allow the underlying heat sealable material to pass therethrough and complete the seal.
REFERENCES:
patent: 3305383 (1967-02-01), Gordy
patent: 3394096 (1968-07-01), Harvey
patent: 4107380 (1978-08-01), Wiesman
American Can Company
Auber Robert P.
Dorman Ira S.
Ives P. C.
Ziehmer George P.
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