Surface-modified fillers, process for their preparation and their use

US6239194A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

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

Key dates

• Filing date: Apr 28, 1999
• Grant date: May 29, 2001
• Expiry date: Apr 28, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2995
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to surface-modified fillers obtained by mixing a filler with water, adding an water-based organosiloxane composition with very thorough mixing, wherein the organosiloxanes are soluble in water and contain, in addition to OH groups, at least one amino-functional group and optionally a functional group from the series consisting of alkyl, haloalkyl, alkenyl, glycidyl ether alkyl, acryloxyalkyl and methacryloxyalkyl, and wherein a functional group is bonded to each silicon atom of the organosiloxane, and drying the mixture. The present invention also provides a process for the surface modification of fillers, their use and ethylene-vinyl acetate copolymer compositions which include the surface-modified fillers.