Lubricating oil additives

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...

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Details

508452, 508454, 5253295, 5253276, 548547, C10M14918, C10M14922, C08F 832

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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.

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