Water-based composition of amino-functional silicon compounds

US6534667B1 · kind B1 · utility

Assignee

• Degussa AG · DE

Inventors

• Burkhard Standke · Soest, DE
• Roland Edelmann · Wehr, DE
• Albert-Johannes Frings · Rheinfelden (Baden), DE
• Michael Horn · Rheinfelden (Baden), DE
• Peter Jenkner · Rheinfelden (Baden), DE
• Ralf Laven · Niederdossenbach, DE
• Helmut Mack · Ludwigshafen, DE
• Jaroslaw Monkiewicz · Rheinfelden (Baden), DE
• Günter Switalla · Neunkirchen, DE

Key dates

• Filing date: Feb 28, 2000
• Grant date: Mar 18, 2003
• Expiry date: Feb 28, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C2222/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composition which comprises a mixture of water-soluble, amino-functional silicon compounds which are essentially free from alkoxy groups, water, optionally a content of alcohol and optionally a content of acid, the composition comprising silicon compounds of the general formula I:NH2[CH2)2NH]x(CH2)3SiO1.5  (I)in which x is 0, 1 or 2,and of the general formula II:(SiO1.5(CH2)3[NH(CH2)2]yNH[(CH2)2NH]x(CH2)3Si)1.5  (II)in which y and z are 0, 1 or 2 and are identical or different.The compositions are obtainable by mixing corresponding aminoalkoxy silanes, hydrolyzing the mixture and removing the hydrolysis alcohol formed as a result. The invention furthermore relates to a process for the preparation of the compositions and to their use in a wide variety of applications.