Coextruded elastomeric films

Details Coextruded elastomeric films Coextruded elastomeric films

1983-08-30

1985-06-18

Ives, Patricia C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

4284769., 428516, 428520, 428906, 428913, 426127, 264171, 264176R, 220449, 229 87F, B32B 702

Patent

active

045240990

ABSTRACT:
A transparent, elastomeric, composite film structure having a core ethylene/vinyl acetate copolymer and outer layers of a low density ethylene homopolymer or copolymer with a small amount of another .alpha.-olefin or vinyl acetate is made by coextrusion of the polymers in a three-layer combining adapter and quenching on a chill roll. This film structure is useful as a wrapping material, especially for heat-sensitive articles.

REFERENCES:
patent: 3595735 (1971-07-01), Tyrrell
patent: 3817821 (1974-06-01), Gallini
patent: 4352849 (1982-10-01), Mueller

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