Polyurethan-polyharnstoff-reaktivklebstoffmassen mit silan-haftvermittlern

Improved polyurethane reactive adhesives - comprises particulate poly:isocyanate(s) with deactivated surface, chain lengthener(s), polyurethane catalysts and additives

Abstract

Polyurethane (PU) reactive adhesives comprise (A) particulate polyisocyanates with deactivated surface; (B) isocyanate-reactive cpds. of mol. wt. above 400; (C) opt. a chain lengthener(s) of mol. wt. below 400; (D) opt. PU catalysts; and (E) opt. conventional additives. The novelty is that the compsn. also contains epoxy-, SH-, NH- or NH2-gp. contg. alkoxysilane. The adhesion of substrates with a PU reactive adhesive contg. at least one adhesive as above is also claimed. The alkoxysilane contains two or three (m)ethoxy gps. and one or more (m)ethyl gps. per silicon atom, and contains a bound aminoalkyl gp. with one, two or more NH or NH2 gps. on the silicon atom. (A) has a m.pt. of above 80 deg.C and has an isocyanate gp. equiv. of 0.1-2.5. (B) is polyols and/or polyamines. ADVANTAGE - Provides improved adhesion between adhesive and substrate without disadvantageous effe

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Cited By (9)

    Publication numberPublication dateAssigneeTitle
    DE-19846099-A1April 20, 2000Bayer Ag, Bayer Antwerpen NvAminofunktionelle Harnstoff-Alkoxy-Silane, ein Verfahren zu ihrer Herstellung und ihre Verwendung
    DE-19846099-C2August 24, 2000Bayer Ag, Bayer Antwerpen NvAminofunktionelle Harnstoff-Alkoxy-Silane, ein Verfahren zu ihrer Herstellung und ihre Verwendung
    US-5922809-AJuly 13, 1999The Dow Chemical CompanyOne-part moisture curable polyurethane adhesive
    US-5976305-ANovember 02, 1999The Dow Chemical CompanyProcess for bonding two substrates together with a one-part moisture curable polyurethane adhesive
    US-6133398-AOctober 17, 2000The Dow Chemical CompanyOne-part curable polyurethane adhesive
    US-7842146-B2November 30, 2010Dow Global Technologies Inc.Ultrasonic energy for adhesive bonding
    US-8378037-B2February 19, 2013Momentive Performance Materials Inc.Moisture-curable silylated polyurea and adhesive, sealant and coating compositions containing same
    WO-2009085285-A1July 09, 2009Momentive Performance Materials Inc.Moisture-curable silylated polyurea and adhesive, sealant and coating compositions containing same
    WO-9502621-A1January 26, 1995Essex Specialty Products, Inc.Glass module and a method for mounting windows