C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/65, 260/306.
C10M 137/02 (2006.01) C07F 9/38 (2006.01) C10M 133/04 (2006.01) C10M 137/12 (2006.01) C10M 137/14 (2006.01) C10M 159/12 (2006.01) C10M 159/20 (2006.01) C10M 163/00 (2006.01) C10M 167/00 (2006.01) F02B 1/04 (2006.01)
Patent
CA 2009487
HYDROXYALKANE PHOSPHONIC ACIDS AND DERIVATIVES THEREOF AND LUBRICANTS CONTAINING THE SAME ABSTRACT OF THE DISCLOSURE This invention relates to lubricating compositions containing hydroxyalkane phosphonic acids and derivatives thereof. More specifically, this invention relates to hydroxyalkane phosphonic acids which can be reacted to form salts with basic materials, including overbased detergents, dispersants and amines. These materials can be particularly useful in lubricating compositions. The hydroxyalkane phosphonic acid is represented by the following formula: Image wherein X is oxygen, sulfur or a secondary amino group, n is an integer from 1 to 8, Y is hydrogen or a phosphonic acid group and R is an alkyl group having from 1 to about 100 carbon atoms.
Di Biase Stephen A.
Rizvi Syed Q. A.
Ridout & Maybee Llp
The Lubrizol Corporation
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