Traction fluid

US4190546A · kind A · utility

Assignee

• The British Petroleum Company Limited · GB

Inventors

• Stanley Kulik
• Anthony Smith · Leatherhead, GB

Key dates

• Filing date: Jul 20, 1978
• Grant date: Feb 26, 1980
• Expiry date: Jul 20, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A traction fluid comprises from 50 to 90% wt of a naphthenic hydrocarbon or mixture of naphthenic hydrocarbons, from 8 to 40% wt of a silicone fluid and from 2 to 10% wt of a co-solvent which ensures complete miscibility between the naphthenic hydrocarbon and silicone fluid, the percentages being by weight of the three components. The silicone fluid improves the low temperature properties of the fluid without substantial damage to the good traction properties of the naphthenic hydrocarbons. Preferred co-solvents are aromatic hydrocarbons or aromatic esters.