Lubricant compositions
AssigneeDiversey Lever, Inc.
InventorsJames Taylour, Eberhard Glozbach
Life of this patent
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Abstract
A lubricant composition having biocidal properties comprises a cyclic imidazoline as the active lubricant in combination with sufficient acid to render the imidazoline soluble in water and optionally including amides and nonionic surfactants. The concentrate, when diluted for use, provides biocidal control action against yeasts and bacteria. The concentrate is preferably adjusted to a pH in the range of 3 to 8.3.
Claims19
A concentrate comprising an aqueous carrier, the concentrate, upon dilution with additional water forming a lubricant for use on a conveyor track, which concentrate comprises the following components:
- (a) (i) a cyclic imidazoline of the general formula (I):
- ##STR5## (a) (ii) an cyclic imidazoline of the general formula (II):
- ##STR6## (a) (iii) an amide of the general formula (III) or (IV):
- ##STR7## wherein R.sub.1, R.sub.2, and R.sub.3 are the same or different and are each --H or --A --Y, in which A is a C.sub.7 to C.sub.20 saturated or unsaturated, linear or branched chain alkylene group, B is a C.sub.1 to C.sub.20 saturated or unsaturated, linear or branched chain alkylene group, Y is H, NH.sub.2, OH, or COOM.sub.1 in which M.sub.1 is H or a Group 1 metal ion, and X is H, NH.sub.2, OH, COOM.sub.2 or --NH--CO--R.sub.4, in which M.sub.2 is the same or different from M.sub.1 and is H or a Group 1 metal ion and R.sub.4 is a C.sub.1 to C.sub.20 saturated or unsaturated, linear or branched chain alkyl group and, in the cyclic imidazoline of general formula (II), the CH.sub.3 ring substituent is present at position 1 or 3 of the ring, and Z.sup.- is an anion;
- and
- (b) an amount of acid sufficient to render the cyclic imidazoline or amide soluble in water, said acid (b) an amount of a carboxylic acid having up to 6 carbon atoms.
An aqueous lubricant composition for use as a lubricant on a conveyor track, the method including diluting a concentrate with water and applying the diluted concentrate to the conveyor track, the concentrate being an aqueous composition comprising:
- (a) an active agent selected from the group consisting of
- (i) a cyclic imidazoline of the general formula (I):
- ##STR9## (ii) a cyclic imidazoline of the general formula (II):
- ##STR10## (ii) on amide of the general formula (III):
- ##STR11## (iv) an amide of the general formula (IV):
- ##STR12## and mixtures thereof, wherein R.sub.1, R.sub.2, and R.sub.3 are the same or different and are each --H or --A --Y, in which A is a C.sub.7 to C.sub.20 saturated or unsaturated, linear or branched chain alkylene group, B is a C.sub.1 to C.sub.20 saturated or unsaturated, linear or branched chain alkylene group, Y is H, NH.sub.2, OH, or COOM.sub.1 in which M.sub.1 is H or a Group 1 metal ion, and X is H, NH.sub.2, OH, COOM.sub.2 or --NH--CO--R.sub.4, in which M.sub.2 is the same or different from M.sub.1 and is H or a Group 1 metal ion and R.sub.4 is a C.sub.1 to C.sub.20 saturated or unsaturated, linear or branched chain alkyl group and, in the cyclic imidazoline of general formula (II), the CH.sub.3 ring substituent is present at position 1 or 3 of the ring, and Z.sup.- is any suitable anion;
- and
- (b) an amount of a carboxylic acid having up to 6 carbon atoms.
Dependencies are inferred from the claim text.