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US 5,512,319 AGranted
Polyurethane foam composite
AssigneeBASF SE
InventorsJohn H. Cook, Egils Grinbergs
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a method of applying a polyurethane foam to a fabric and the product produced thereof. This method involves (a) coating the fabric with a silicone surfactant dissolved in water, and (b) expanding the polyurethane foaming mixture in contact with the coated portion of the fabric.
Claims21
A method of applying polyurethane foam to fabric comprising;
- (a) coating at least a portion of the fabric with a coating comprising silicone surfactant dissolved in a solvent comprising water, and
- (b) expanding a polyurethane foaming mixture in contact with the portion of said fabric coated in step (a).
A method of applying polyurethane foam to a fabric, comprising:
- (a) coating at least a portion of the fabric with a coating comprising a silicone surfactant dissolved in a solvent comprising water, and
- (b) expanding a polyurethane foaming mixture in contact with the portion of said fabric coating in step (a),
- wherein said polyurethane foaming mixture comprises a blowing agent chemically reactive with an organic isocyanate.
Dependencies are inferred from the claim text.