Surface modified silicone elastomers from aqueous silicone emulsions

US5777026A · kind A · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Daniel Trent Berg · Kewaunee, US
• Leon Hides · Forbes, AU
• Eric Jude Joffre · Midland, US
• Virginia Kay O'Neil · Midland, US
• Arthur James Tselepis · Midland, US
• Andreas Wolf · Gauting, DE

Key dates

• Filing date: Dec 28, 1995
• Grant date: Jul 7, 1998
• Expiry date: Dec 28, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2383/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An aqueous silicone emulsion which upon the evaporation of the water forms a surface modified elastomeric silicone material providing improved coverage and adhesion of paint and reduced staining and coefficients of friction, each relative to other silicone elastomers from aqueous emulsions. The silicone emulsion comprises (A) water; (B) a plurality of particles dispersed in the water comprising a crosslinked product of a diorganosiloxane polymer; (C) a surfactant; and (D) an amount of an oxygen curing compound or a salt thereof effective for the surface modification. If a surface active salt of an oxygen curing compound is used, it may not be required to add additional surfactant in order to form the silicone emulsion.