James E Macneil

US Patent:

57804001, Jul 14, 1998

Filed:

Jul 21, 1997

Appl. No.:

8/897382

Inventors:

James MacNeil - New Philadelphia OH
Donald R. Stevenson - Dover OH
Barbara A. Wade - Dalton OH
Joseph C. Fette - New Philadelphia OH

Assignee:

Dover Chemical Corp. - Dover OH

International Classification:

C10M12972

US Classification:

508496

Abstract:

The invention pertains to chlorine-free extreme pressure metalworking fluid additives and lies in the recognition of the improved hydrolytic stability of alkanoic acid esters of cyclohexane dimethanol and other esters embodying similar structures. The various derivatives which are effective as extreme pressure additives include those which fall within the generic description ##STR1## wherein R. sup. 1 through R. sup. 4 are independently selected from the group hydrogen and C. sub. 1-24 hydrocarbyl groups and R. sup. 5 and R. sup. 6 are independently selected from the group C. sub. 3-24 hydrocarbyl groups.

US Patent:

62042289, Mar 20, 2001

Filed:

Jan 28, 1999

Appl. No.:

9/238305

Inventors:

James G. MacNeil - New Philadelphia OH
Barbara A. Wade - Dalton OH
C. Joseph Fette - New Philadelphia OH

Assignee:

Dover Chemical Corp. - Dover OH

International Classification:

C10M13300
C10M13500

US Classification:

508548

Abstract:

Extreme pressure lubricants, concentrates and greases. Disclosed herein are extreme pressure metal working lubricants which comprise a lubricant base material and a reaction product of (1) an amine containing from 1 to about 30 carbon atoms and (2) sulfamic acid or derivative thereof containing from 1 to about 30 carbon atoms. The reaction product or extreme pressure additive may be either water soluble or oil soluble. Amines containing from 1 to about 7 carbon atoms are generally used for making water soluble reaction products, and amines containing 8 or more (up to about 30) carbon atoms are generally used for making oil soluble reaction products. Water based lubricants comprise water and a water soluble reaction product. Oil based lubricants comprise an oil of lubricating viscosity and an oil soluble reaction product. Reaction products may be either addition products or sulfonamides.

US Patent:

59393661, Aug 17, 1999

Filed:

Feb 26, 1998

Appl. No.:

9/031305

Inventors:

James MacNeil - New Philadelphia OH
Donald R. Stevenson - Dover OH
Barbara A. Wade - Dalton OH
Joseph C. Fette - New Philadelphia OH

Assignee:

Dover Chemical Corp. - Dover OH

International Classification:

C10M12972

US Classification:

508496

Abstract:

The invention pertains to chlorine-free extreme pressure metalworking fluid additives and lies in the recognition of the improved hydrolytic stability of alkanoic acid esters of cyclohexane dimethanol and other esters embodying similar structures. The various derivatives which are effective as extreme pressure additives include those which fall within the generic description ##STR1## wherein R. sup. 1 through R. sup. 4 are independently selected from the group hydrogen and C. sub. 1-24 hydrocarbyl groups and R. sup. 5 and R. sup. 6 are independently selected from the group C. sub. 3-24 hydrocarbyl groups.