Silane microemulsions

US4842766A · kind A · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Lynne M. Blehm · Midland, US
• William C. White · St. Augustine, US

Key dates

• Filing date: Feb 17, 1987
• Grant date: Jun 27, 1989
• Expiry date: Feb 17, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/906
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Clear stable micellar solutions comprising: PA0 (a) a silane represented by the formulae: EQU X.sub.4-n Si(RNH.sub.a R'.sub.b Y.sub.c).sub.n (i) PA0 where X denotes an alkoxy radical with 1 to 6 carbon atoms, or an alkoxyalkoxy radical with 2 to 8 carbon atoms, or an alkyl radical with 1 to 6 carbon atoms; PA1 y denotes an acid anion; PA1 n is 1, 2 or 3; PA1 R denotes a divalent hydrocarbon radical with 1 to 6 carbon atoms; PA1 R' denotes alkyl radicals with 1 to 22 carbon atoms; saturated hydrocarbon radicals containing nitrogen, or unsaturated hydrocarbon radicals containing nitrogen; PA1 a is 0, 1 or 2; PA1 b is 0, 1, 2, or 3; PA1 c is 0 or 1; the sum of a+b is 2 or 3 and when the sum of a and b is 3, c is 1, otherwise c is O; EQU X.sub.4-n Si(RPR".sub.3 Y).sub.n (ii) PA1 where X denotes an alkoxy radical with 1 to 6 carbon atoms, or an alkoxyalkoxy radical with 2 to 8 carbon atoms, or an alkyl radical with 1 to 6 carbon atoms, R denotes a divalent hydrocarbon radical with 1 to 6 carbon atoms; R" denotes an alkyl radical with 1 to 20 carbon atoms, or a phenyl radical, and n is 1, 2, or 3; or EQU X.sub.3 SiR"' (iii) PA1 where X denotes an alkoxy radical with 1 to 6 carbon atoms, …