Polyvinylidene fluoride-polyurethane laminates and method

Details Polyvinylidene fluoride-polyurethane laminates and method Polyvinylidene fluoride-polyurethane laminates and method

1979-01-15

1980-09-09

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

264514, 264237, 428421, 4284246, B32B 3100

Patent

active

042217571

ABSTRACT:
The present invention relates to laminates of a polyvinylidene fluoride resin (hereinafter referred to as "PVF.sub.2 ") and a thermoplastic polyurethane that are formed without the use of any intermediate bonding agent and to the method of making such laminates, preferably by co-extrusion, wherein the polyvinylidene fluoride resin must have a certain specified apparent viscosity, at 200.degree. C., at certain specified velocity gradients.

REFERENCES:
patent: 3397428 (1968-08-01), Donald
patent: 3476627 (1969-11-01), Squires
patent: 3968196 (1976-07-01), Wiley

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