Multilayer laminate film

Details Multilayer laminate film Multilayer laminate film

1996-07-26

1998-02-17

Marquis, Melvyn I.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428214, B32B 2708

Patent

active

057189820

ABSTRACT:
A multilayer laminate film comprising (A) a first layer comprising a propylene polymer and oriented in at least one direction, (B) a second layer comprising a propylene copolymer having a melting point lower than the melting point of the propylene polymer of the first layer, (C) a third layer comprising a polymer composition comprising a graft modified olefin polymer in which an unsaturated carboxylic acid or a derivative thereof is grafted, and (D) a fourth layer comprising an ethylene vinyl alcohol copolymer, these four layers being laminated in the above order. The above multilayer laminate exhibits excellent interlaminar adhesion and has excellent heat resistance.

REFERENCES:
patent: 4511610 (1985-04-01), Yazaki et al.
patent: 4572854 (1986-02-01), Dallmann et al.
patent: 4734331 (1988-03-01), Giles, Jr. et al.
patent: 4753845 (1988-06-01), Sumi et al.
patent: 4792484 (1988-12-01), Moritani

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