Layered polyamide film and method for producing the same

Details Layered polyamide film and method for producing the same Layered polyamide film and method for producing the same

1996-07-19

1998-10-06

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of polyamide

428195, 428201, 428355AC, 4284755, 428480, 428910, 4272071, 4273935, 26417113, 2642902, B32B 2734

Patent

active

058174257

ABSTRACT:
A layered polyamide film includes a polyamide substrate; and an adhesiveness-improving layer provided on at least one surface of the polyamide substrate. The adhesiveness-improving layer includes a graft copolymer of a polyester and an acrylic polymer. Another layered polyamide film includes a printing ink layer, an adhesive layer, and a sealant layer sequentially laminated on the adhesiveness-improving layer. A method for producing such a layered polyamide film includes the step of applying an aqueous dispersion of the graft copolymer of the polyester and the acrylic polymer to at least one surface of the polyamide substrate to form an adhesiveness-improving layer and, if necessary, laminating a printing ink layer, an adhesive layer, and a sealant layer on adhesiveness-improving layer.

REFERENCES:
patent: 3760034 (1973-09-01), Crintchfield et al.
patent: 5280089 (1994-01-01), DeGraaf et al.
patent: 5300563 (1994-04-01), Kiang et al.
patent: 5449707 (1995-09-01), Higashiura et al.

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