Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Silicon dioxide – silicic acid – orthosilicate – or...
Reexamination Certificate
2008-05-27
2008-05-27
McAvoy, Ellen M. (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Silicon dioxide, silicic acid, orthosilicate, or...
C508S467000, C508S469000, C508S539000
Reexamination Certificate
active
07378379
ABSTRACT:
A grease composition containing a polymer with (a) monomers (i) at least one unsaturated α,β-carboxylic acid ester containing an alkyl group with about 10 to about 20 carbon atoms; and (ii) at least one unsaturated α,β-carboxylic acid ester containing an alkyl group with about 4 to about 11 carbon atoms different from monomer (i); and (iii) at least one unsaturated dicarboxylic acid anhydride or derivatives thereof; and (iv) optionally at least one unsaturated α,β-carboxylic acid ester containing an alkyl group with about 1 to about 3 carbon atoms; and optionally (b) at least one non-monomeric amine with primary functionality, secondary functionality or mixtures thereof; and optionally (c) other performance additives; and (d) at least one thickening agent, and (e) an oil of lubricating viscosity. The invention further relates to the process to make the composition and its use in greases.
REFERENCES:
patent: 4668412 (1987-05-01), Hart et al.
patent: 4822508 (1989-04-01), Pennewiss et al.
patent: 4867894 (1989-09-01), Pennewiss et al.
patent: 4929371 (1990-05-01), Waynick
patent: 4968444 (1990-11-01), Knoell et al.
patent: 5000862 (1991-03-01), Waynick
patent: 5116522 (1992-05-01), Brown et al.
patent: 5188770 (1993-02-01), Pennewiss
patent: 5368761 (1994-11-01), Gore et al.
patent: 5721201 (1998-02-01), Tomassen et al.
patent: 5955405 (1999-09-01), Liesen et al.
patent: 6124249 (2000-09-01), Seebauer et al.
patent: 6255261 (2001-07-01), Liesen et al.
patent: 6271184 (2001-08-01), Seebauer et al.
patent: 6300288 (2001-10-01), Scharf et al.
patent: 6458749 (2002-10-01), Kinker et al.
patent: 6712991 (2004-03-01), Gore et al.
patent: 2986850 (1999-12-01), None
Abstract of Chinese Patent No. CN 1006231 B, Accession No. 1989:176506, Caplus, Dec. 27, 1989.
Fahmy Mohamed G.
Sivik Matthew R.
Gilbert Teresan W.
McAvoy Ellen M.
Shold David M.
The Lubrizol Corporation
LandOfFree
Functionalized polymer composition for grease does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Functionalized polymer composition for grease, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Functionalized polymer composition for grease will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2799287