Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1981-10-28
1984-07-17
Lesmes, George F.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
428335, 428349, 428910, 428516, 427348, 4273981, 156229, 15624474, 15624411, 426106, 426127, B32B 2708
Patent
active
044606311
ABSTRACT:
Disclosed is a sealable, biaxially stretched polyethylene-coated polypropylene film, preferably manufactured as a flat film, which is not only extremely scratch-resistant but is also rapidly sealable, with good machine-running characteristics and high transparency. The polyethylene sealing layer has a scratch resistance of .ltoreq.50% gloss reduction, relative to an initial gloss of 100%, measured according to ASTM Standard Specification D673-70 (1976), and a density of .gtoreq.0.94 g/cm.sup.3, preferably of .gtoreq.0.95 g/cm.sup.3. Also disclosed is a process for the manufacture of the film, and the use of the film as an abrasion-resistant packaging material.
REFERENCES:
patent: T955009 (1977-02-01), Lansbury et al.
patent: 4197150 (1980-04-01), Breidt et al.
patent: 4198256 (1980-04-01), Andrews et al.
patent: 4252851 (1981-02-01), Lansbury et al.
patent: 4333968 (1982-06-01), Nahmias
patent: 4348457 (1982-09-01), Rosenthal et al.
Hensel Hartmut
Janocha Siegfried
Stegmeier Gerhard
Buffalow E. Rollins
Hoechst Aktiengesellschaft
Lesmes George F.
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