Carbosilane surfactants

US5026891A · kind A · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Andre R. L. Colas · Königstein, DE
• Franck A. D. Renauld · Chaumont-Gistoux, BE
• George C. Sawicki · Penarth, GB

Key dates

• Filing date: Jul 28, 1989
• Grant date: Jun 25, 1991
• Expiry date: Jul 28, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/081
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Surface active silicone compounds which have an improved stability at a pH above 9 or below 4, have the general formula ##STR1## wherein each R independently represents an alkyl or aryl group, each R' represents an alkylene group preferably separating neighbouring silicon atoms by up to 3 carbon atoms, each R" independently denotes R or, only if a is 0, the group R.sub.3 SiR'--, Z represents a hydrophilic sulphur, nitrogen or phosphor containing substituent or a carboxy-functional group or a salt thereof, and a has the value 0, 1 or 2.