COLLOIDAL PRODUCTS CONTAINING CALCIUM, BARIUM AND/OR MAGNESIUM AS WELL AS BISMUTH, AND BEING MODIFIED BY SULPHUR- AND OPTIONALLY NITROGEN-CONTAINING CARBOXYLIC ACID ACTIVITY

摘要

A new colloidal prod. contg. Ca,Ba, and/or Mg, also including Bi, 5 (and possibly N) is claimed. It is obtd. by a neutralisation (- partial) of the reserve basicity of an over-based colloidal prod. comprising Ca,Ba or Mg carbonate dispersed in micellar form, in an organic medium, by - one sulphonated Bi cpd. complying with one of the formulae: R1 = monovalent 8-36 aliphatic hydrocarbon R2 = H or 8-36C monovalent aliphatic hydrocarbon. The partial (or complete) neutralisation is effected by means of - one 5-contg. carboxylic acid or a carboxylic acid contg. S and N. Also claimed are oil and grease compsns. contg. a proportion of the prod..