Adhesion promoter

US5302458A · kind A · utility

Assignee

• Basf Lacke & Farben Aktiengesellschaft · DE

Inventors

• Rainer Blum · Ludwigshafen, DE
• Hans J. Heller · Hamburg, DE
• Hans-Joachim Haehnle · Neustadt, DE
• Klaus-Wilhelm Lienert · Hamburg, DE

Key dates

• Filing date: Jul 6, 1993
• Grant date: Apr 12, 1994
• Expiry date: Jul 6, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31721
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Use of a mixture of from 5 to 95% by weight of an azidosilane of the formula EQU N.sub.3 --R.sup.3 --Si--R.sup.1.sub.n (OR.sup.2).sub.3-n I where R.sup.1 is C.sub.1 -C.sub.3 -alkyl, phenyl, benzyl or tolyl, R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkoxyalkyl, phenyl or benzyl, R.sup.3 is C.sub.1 -C.sub.8 -alkylene, which may be interrupted by oxygen, sulfur or --(N--R.sup.4)-- in which R.sup.4 is hydrogen, methyl, ethyl or phenyl, and n is 0, 1 or 2, and from 5 to 95% by weight of an aminoalkoxysilane of the formula EQU H.sub.2 N--R.sup.5 --Si--R.sup.6.sub.m (OR.sup.7).sub.3-m (II) where R.sup.5 is C.sub.1 -C.sub.6 -alkylene, C.sub.5 -C.sub.6 -cycloalkylene or C.sub.5 -C.sub.6 -arylene, each of which may be additionally substituted by one or two C.sub.1 -C.sub.3 -alkyl groups, and R.sup.6 and R.sup.7, independently of one another, are C.sub.1 -C.sub.6 -alkyl or C.sub.5 -C.sub.6 -cycloalkyl, each of which may likewise be additionally substituted by one or two C.sub.1 -C.sub.3 -alkyl groups, and m may be 0, 1 or 2, as an adhesion promoter between polycondensates containing, as structural units, heterocyclic ring systems containing nitrogen atoms, or precursors of these …