Water-based organopolysiloxane-containing compositions, processes for their preparation and their use

US5629400A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Burkhard Standke · Soest, DE
• Albert-Johannes Frings · Rheinfelden (Baden), DE
• Michael Horn · Rheinfelden (Baden), DE
• Hans-Joachim Kotzsch
• Frank Kropfgans · Rheinfelden (Baden), DE
• Jaroslaw Monkiewicz · Rheinfelden (Baden), DE
• Claus-Dietrich Seiler · Rheinfelden (Baden), DE
• Jim Steinmetz · Princeton, US

Key dates

• Filing date: Dec 6, 1995
• Grant date: May 13, 1997
• Expiry date: Dec 6, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/26
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to water-based organopolysiloxane containing compositions which are essentially free from organic solvents, have a flash point above 70.degree. C. and essentially liberate no alcohols by hydrolysis on dilution with water. The organopolysiloxane-containing compositions according to the invention are obtainable by mixing M mol of water-insoluble organotrialkoxysilanes with Q mol of water-soluble aminoalkylalkoxysilanes in a molar ratio of 0<M/Q.ltoreq.2, adding water to the mixture, adjusting the pH of the reaction mixture to a value of between 1 and 8 and removing alcohol already present and/or formed during the reaction. The process for the preparation of the organopolysiloxane-containing compositions according to the invention and their use are also disclosed.