Poly (vinyl chloride) polyamide multi-layer structures
AssigneeAllied-Signal Inc.
InventorPeter J. Kartheiser
Life of this patent
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Abstract
The present invention provides a multi-layer structure having improved adhesion between its layers. The multi-layer structure has in the following order: a layer of PVC, a layer of adhesive resin, and a layer of polyamide. The adhesive resin comprises organic solvent, vinyl resin, phthalate plasticizer, and leveling agent. The vinyl resin is selected from the group consisting of vinyl chloride-vinyl acetate-vinyl alcohol terpolymer (VAGH), vinyl chloride-vinyl acetate copolymer (VYHH), and vinyl chloride-vinyl acetate-maleic acid terpolymer (VMCM). Electrical conductors formed from a wire conductor and the multi-layer structure have superior adhesion between layers even after the polyamide layer absorbs moisture.
Claims18
A multi-layer structure having improved adhesion between its layers comprising in the following order:
- a layer of poly(vinyl chloride);
- a layer of adhesive resin wherein said layer comprises:
- (a) vinyl resin wherein said vinyl resin is a vinyl resin selected from the group consisting of vinyl chloride-vinyl acetate-vinyl alcohol terpolymer;
- vinyl chloride-vinyl acetate copolymer;
- and vinyl chloride-vinyl acetate-maleic acid terpolymer,
- (b) phthalate plasticizer, and
- (c) leveling agent;
- and
- a layer of polyamide wherein said polyamide is a polyamide selected from the group consisting of nylon 6;
- nylon 6,6;
- and nylon 6,6/6.
An electrical conductor comprising in the following order:
- a wire conductor;
- a layer of poly(vinyl chloride);
- a layer of adhesive resin wherein said layer comprises:
- (a) vinyl resin wherein said vinyl resin is a vinyl resin selected from the group consisting of vinyl chloride-vinyl acetate-vinyl alcohol terpolymer;
- vinyl chloride-vinyl acetate copolymer;
- and vinyl chloride-vinyl acetate-maleic acid terpolymer,
- (b) phthalate plasticizer, and
- (c) leveling agent;
- and
- a layer of polyamide wherein said polyamide is a polyamide selected from the group consisting of nylon 6;
- nylon 6,6;
- and nylon 6,6/6.
Dependencies are inferred from the claim text.