Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting a...
Patent
1998-06-26
2000-10-17
Medley, Margaret
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Compound of indeterminate structure, prepared by reacting a...
508452, 508454, 5253295, 5253276, 548547, C10M14918, C10M14922, C08F 832
Patent
active
061332062
ABSTRACT:
A compound comprising i) 20-80 mol % of at least one monoethylenically unsaturated dicarboxylic acid or anhydride thereof, ii) 5-30 mol % of at least one unsaturated oligomer of an optionally branched olefin having 2 to 20 carbon atoms, having an average molecular weight Mw of 300-5000, iii) 10-60 mol % of an ethylenically unsaturated acid having at least 10 carbon atoms, or a mono-,di- or tri- ester of glycerol (1, 2, 3 propanetriol) in which at least one of the carboxylic acid residues of the ester is derived from said ethylenically unsaturated acid, or an oil, optionally hydrolysed, containing at least 30 wt % of the acid or ester is disclosed, which has both dispersant and VI improving properties in lubricating oils.
REFERENCES:
patent: 4184993 (1980-01-01), Singh et al.
patent: 4399248 (1983-08-01), Singh et al.
patent: 5567344 (1996-10-01), Emert et al.
patent: 5578237 (1996-11-01), Emert et al.
EP 98 30 4969; European Search Report mailed Mar. 4, 1999.
Gracey Benjamin Patrick
Moreton David John
Esposito Michael
Lubrizol Adibis Holdings (UK) Ltd.
Medley Margaret
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