Traction fluids

US6623399B2 · kind B2 · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Kenneth Christopher Fey · Midland, US
• Glenn Frederick Viaplana Gordon · Midland, US
• Terrence K. Hilty · Midland, US
• Russell Keith King · Midland, US
• Tina Marie Leaym · Saginaw, US
• Lori Ann Stark-Kasley · Midland, US
• Gary Wieber · Midland, US
• Eugene D. Groenhof · Freeland, US

Key dates

• Filing date: Dec 28, 2001
• Grant date: Sep 23, 2003
• Expiry date: Dec 28, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/046
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Siloxane compositions are useful as traction fluids in traction drive systems which are subject to varied operating temperature and pressure conditions. Specific siloxane compositions included contain units of formulae(I) (R3SiO1/2)(RSiO3/2)(SiO4/2),(II) (R3SiO1/2)(RSiO3/2),(III) (R3SiO1/2)(SiO4/2),(IV) (R3SiO1/2)(R2SiO2/2)(RSiO3/2),(V) (R3SiO1/2)(R2SiO2/2), and(VI) (R2SiO2/2)a in varying mole percents, where a is an integer ranging from 3 to 20 and each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms.