Lubricant additive formed by neutralisation of a sulphurised...

Details Lubricant additive formed by neutralisation of a sulphurised... Lubricant additive formed by neutralisation of a sulphurised...

C - Chemistry, Metallurgy

07

C

260/135, 253/93

C07C 161/00 (1980.01) C10M 3/32 (1980.01)

Patent

CA 1069501

ABSTRACT OF THE DISCLOSURE A lubricant additive comprising the reaction product obtained by neutralising a sulphurised alkyl phenol containing at least 4 wt % sulphur and a Mannich base containing at least 2 wt % nitrogen with an alkaline earth metal oxide or hydroxide, the Mannich base having a molecular wt of at least 600 and being prepared from an alkylene or polyalkylene polyamine, alkyl phenol and formaldehyde, the neutralisation being carried out at elevated temperature and in the presence of a hydroxylic solvent.

263510

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