Coextrusion process for preparing a composite polymer film const

Details Coextrusion process for preparing a composite polymer film const Coextrusion process for preparing a composite polymer film const

1981-10-22

1982-11-16

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

264174, B32B 3130

Patent

active

043594409

ABSTRACT:
A process is disclosed for preparing a composite polymer film construction by a coextrusion process. An ethylene polymer or an isotactic propylene polymer is employed to form the surface layers and a blend of an ionomer resin and an alkenyl succinic anhydride is employed to form the intermediate layer.

REFERENCES:
patent: 3264272 (1966-08-01), Rees
patent: 3485785 (1969-12-01), Anspon et al.
patent: 3553178 (1971-01-01), Clampitt et al.
patent: 3970626 (1976-07-01), Hurst et al.
patent: 4152387 (1979-05-01), Cloeren
patent: 4158664 (1979-06-01), Selwitz et al.

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