Laminated film packages

Details Laminated film packages Laminated film packages

1972-03-16

1981-06-16

McCamish, Marion

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

229 80, 426106, 428514, 428520, 428522, B32B 2708, B32B 2710

Patent

active

042738156

ABSTRACT:
A laminated film for packaging use which film has at least one lamina of a crystalline flexible polyvinylidene chloride film adhered to a lamina of chlorinated polyethylene film, the chlorinated polyethylene film having a chlorine of concentration of up to approximately 60%, by weight, with the particular chlorine concentration of from 30% to 50%, by weight, being preferred. The laminated film being formed by contacting a polyvinylidene chloride film while in a supercooled noncrystalline state with a chlorinated ethylene film and thereafter effecting crystallization of the polyvinylidene chloride film with substantially random crystal distribution throughout, such as, by heating the thus formed laminate to the crystallization temperature of the polyvinylidene chloride.

REFERENCES:
patent: 3083106 (1963-03-01), Sloan
patent: 3137580 (1964-06-01), Sloan
patent: 3560227 (1971-02-01), Eichhorn
patent: 3647485 (1972-03-01), Seiferth

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