Method of producing an internally reinforced thermoplastic film

Details Method of producing an internally reinforced thermoplastic film Method of producing an internally reinforced thermoplastic film

1985-03-25

1986-06-03

McCamish, Marion C.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

15624412, 15624413, 15624415, 428 36, 428292, 428294, D04H 104

Patent

active

045929386

ABSTRACT:
A method for producing an internally reinforced aeolotropic thermoplastic film web through coextrusion of two polymeric materials, and more particularly, a method of forming a film web possessing an enhanced tensile strength in at least the longitudinal or machine direction of the film web. A plastic film having internal striplike reinforcements entirely embedded within a matrix material is formed by the inventive method, and such film is utilized for various articles; for instance, plastic bags, bag components such as handles by liners, stretch wrap film, and the like.

REFERENCES:
patent: 3034941 (1962-05-01), Hessenthaler et al.
patent: 3372920 (1968-03-01), Corbett et al.
patent: 3397428 (1968-08-01), Donald
patent: 3577308 (1971-05-01), Van Drunen
patent: 4410587 (1983-10-01), Fair et al.
patent: 4410602 (1983-10-01), Komoda et al.
patent: 4464157 (1984-08-01), Benoit

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