Polyurethane foam-backed pressure-sensitive adhesive tape

Details Polyurethane foam-backed pressure-sensitive adhesive tape Polyurethane foam-backed pressure-sensitive adhesive tape

C - Chemistry, Metallurgy

09

J

117/26

C09J 7/02 (2006.01) C08J 9/00 (2006.01) C08J 9/34 (2006.01) C08L 75/04 (2006.01)

Patent

CA 1060600

ABSTRACT Foam-backed pressure-sensitive adhesive tape having an open-cell polyurethane roam backing containing a foam-stabilizing fluoroaliphatic substance such as a fluoroaliphatic oligomer which affords repellency to oil and water. Moieties of the fluoroaliphatic substance similar to moieties of the polyurethane afford solubility in the polyurethane-forming mixture which is balanced against the insolubilizing effect of the carbon-bonded fluorine to concentrate the fluoroaliphatic substance at the cell membrane surfaces of the foam.

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