Low temperature lubricating oil

US4818423A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Horst Steinbach · Lindlar, DE
• Jurgen Ackermann · Bensberg, DE
• Ottfried Schlak · Cologne, DE

Key dates

• Filing date: Mar 18, 1988
• Grant date: Apr 4, 1989
• Expiry date: Mar 18, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/50
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fluorosiloxane lubricant comprising compounds corresponding to the formula EQU T.sub.a M.sub.b D.sup.F.sub.c D.sub.d wherein PA1 T denotes alkyltrisiloxy having 1 to 12 alkyl carbon atoms, PA1 M denotes trialkylmonosiloxy having 1 to 12 carbon atoms in each alkyl, PA1 D denotes dialkylsiloxy having 1 to 12 carbon atoms in each alkyl, PA1 D.sup.F denotes a substituted alkyldisiloxy having 1 to 12 carbon atoms in the alkyl and substituted by a fluorinated moiety of the formula C.sub.n F.sub.2n+1 --CH.sub.2 --CH.sub.2, wherein PA1 n is a number from 2 to 10, PA1 a is a number from 1 to 5, PA1 b is a number from 3 to 7, PA1 c is a number from 3 to 7, and PA1 d is a number from 30 to 70.