Patent ID: 6626988
Filing Date: 2003-09-30
Classification: C08G

Abstract:
A polyurethane composition, which crosslinks via silane polycondensation, comprisingA) at least one alkoxysilane-functional polyurethane containing terminal groups corresponding to formula (I) â€ƒwherein R represents an organic radical containing 1 to 12 carbon atoms, n is 2, 3 or 4, and X, Y, Z represent identical or different organic radicals, provided that at least one of the radicals represents an alkoxy group containing 1 to 4 carbon atoms, B) at least one basic filler, C) at least one phosphorus compound comprising a member selected from the group consisting of: i) an ester of an orthophosphoric acid of the formula (II) O&boxH;P(ORâ€²)3âˆ’m(OH)mâ€ƒâ€ƒ(II) â€ƒwherein m is one or two, and Râ€² represents a linear or branched C1-C30 alkyl, acyl, C2-C30 alkenyl, alkoxyalkyl, C5-C14 cycloalkyl or aryl radical, which is optionally substituted, or a triorganosilyl or diorganoalkoxysilyl radical, wherein Râ€² can be the same or different within the molecule ii) an ester of a polyphosphoric acid, iii) a salt of component i), iv) a salt of component ii), and v) mixtures thereof, D) at least one aminosilane corresponding to formula (III) â€ƒwherein Râ€³ represents a hydrogen atom, an aliphatic hydrocarbon radical containing 1 to 4 carbon atoms, a trialkoxysilyl propyl group or an aminoethyl group, n is 2, 3 or 4, and X, Y, Z represent identical or different organic radicals, provided that at least one of the radicals represents an alkoxy group containing 1 to 4 carbon atoms, and E) an organometallic compound.