Rohmax Additives Gmbh

Joan Marie Souchik

Markus Scherer

Bernard Kinker

Joseph M Bollinger

Jen-Lung Wang

Thomas A Mc Gregor

The present invention describes use of use of a metal compound to control the quality of a functional fluid. Additionally, the present invention concerns a method for controlling the quality of a functional fluid comprising the steps of:

Quality control of a functional fluid

A method for improving the low temperature fluidity of lubricating oil compositions based on addition to lubricating oils of a mixture of selected high molecular weight and low molecular weight alkyl (meth)acrylate copolymers is disclosed. Combinations of low molecular weight alkyl (meth)acrylate polymers containing zero to 25 weight percent (C -C )alkyl (meth)acrylate with high molecular weight alkyl (meth)acrylate polymers containing 25 to 70 weight percent (C -C )alkyl (meth)acrylate are especially effective at satisfying different aspects of low temperature fluidity properties simultaneously for a broad range of base oils.

Method for improving low-temperature fluidity of lubricating oils using high-and-low-molecular weight polymer

Gradient copolymers, as well as a method for their preparation and their use

Copolymers obtainable by the ATRP method and a method for their preparation and their use

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Norristown, PA, United States of America

Joan Marie Souchik