Abstract: The present invention relates to the field of lubricant, and specifically provides a lubricant composition and its preparation method and use. The lubricant composition comprises a base oil and rubber particles having radiation crosslinked structure dispersed therein, wherein the base oil is continuous phase and the rubber particles are dispersed phase. The viscosity of the lubricant composition of the present invention can be effectively adjusted as temperature changes. As compared with the lubricant composition comprising chemically crosslinked rubber particles, it has a lower viscosity at low temperatures and a higher viscosity at high temperatures, and has a relatively high viscosity index, which can meet the application requirements at the temperature above 200° C. In addition, the lubricant composition of the present invention also has excellent antiwear and friction-reducing properties.
Type:
Grant
Filed:
April 19, 2016
Date of Patent:
April 17, 2018
Assignees:
CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity, an additive containing a polymeric backbone and at least one amino group. The invention further provides for the additive to have dispersant and/or dispersant viscosity modifying properties. The lubricating composition is suitable for lubricating an internal combustion engine.
Type:
Grant
Filed:
November 10, 2008
Date of Patent:
January 28, 2014
Assignee:
The Lubrizol Corporation
Inventors:
Matthew D. Gieselman, Christopher Friend, Adam J. Preston
Abstract: The invention relates to a lubricant composition based on modified, natural and renewable raw materials, the viscosity of which can be adjusted according to the application. The invention relates more particularly to biodegradable lubricant compositions.
Type:
Grant
Filed:
June 9, 2009
Date of Patent:
June 4, 2013
Assignee:
Klüber Lubrication München KG
Inventors:
Thomas Kilthau, Martin Schmidt-Amelunxen, Sarah Zirkel
Abstract: The present invention relates to a lubricant composition. The present invention more particularly relates to a fully miscible lubricant composition that comprise a polyether and a renewable raw material such as an unsaturated seed or vegetable oil.
Type:
Grant
Filed:
April 1, 2008
Date of Patent:
May 1, 2012
Assignee:
Dow Global Technologies LLC
Inventors:
Johan A. Thoen, Rene Geiger, Martin R. Greaves, David C. Busby