Process for making multiple layer polymeric films

Details Process for making multiple layer polymeric films Process for making multiple layer polymeric films

1985-05-16

1990-01-16

Cashion, Jr., Merrell C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624424, 1562722, 1563099, 156322, 156324, 156333, 264 22, 264171, 2642902, B32B 3130

Patent

active

048941077

ABSTRACT:
Novel films, and processes for making them, are provided. The films are characterized by the inclusion of a layer of vinylidene chloride copolymer between at least two other layers which contain ethylene vinyl acetate, and optionally linear low density polyethylene. The films may be unoriented or oriented. Oriented films may optionally be cross-linked. The novel process of making the cross-linked films includes the step of cross-linking the film after assembly of the vinylidene chloride copolymer layer into the structure.

REFERENCES:
patent: 3645822 (1972-02-01), Widiger
patent: 4112181 (1978-09-01), Baird, Jr.
patent: 4352702 (1982-10-01), Bornstein
patent: 4379117 (1983-08-01), Baird
patent: 4457960 (1984-07-01), Newsome
patent: 4469742 (1984-09-01), Oberle
patent: 4472227 (1984-09-01), Toyoda
patent: 4605460 (1986-08-01), Schirmer

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