Laminates of 4-methylpentene-1 polymers and vinyl alcohol polyme

Details Laminates of 4-methylpentene-1 polymers and vinyl alcohol polyme Laminates of 4-methylpentene-1 polymers and vinyl alcohol polyme

1994-02-25

1994-12-06

Zirker, Daniel R.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

525 78, 428507, 428514, 428518, C08L 3308, C08L 5100, B32B 2708, B32B 2710

Patent

active

053709411

ABSTRACT:
Improved two-component blends which exhibit good adhesion to 4-methylpentene-1 polymers and vinyl alcohol polymers and which may be used as an adhesive interlayer when laminating layers of the polymers are provided. Ethylene-alkyl acrylate copolymers, preferably ethylene n-butyl acrylate copolymers, and modified propylene polymers, preferably maleic anhydride grafted statistical propylene-ethylene copolymers and propylene-ethylene impact copolymers, are combined to obtain the blends of the invention. Useful laminated structures comprised of a layer of poly-4 -methylpentene-1 homopolymer or copolymer, a layer of the adhesive blend and a layer of ethylene-vinyl alcohol copolymer with one or more optional layers, such as a paperboard, are also disclosed.

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