Diurea grease composition

Details Diurea grease composition Diurea grease composition

1990-07-03

1992-09-08

McAvoy, Ellen

Compositions

Electrolytes for electrical devices

252 515A, C10M11508, C10M13320

Patent

active

051455919

ABSTRACT:
A diurea grease composition contains a base oil and 2 to 25 wt.%, based on the total weight of the composition, of a diurea compound, the diurea grease compound being produced by reacting a mixed system of two or more different diisocyanates represented by the formula (I) OCN--R--NCO wherein R stands for a straight-chained or branched alkylene group, a straight-chained or branched alkenylene group, a cycloalkylene group or an aromatic group, with an amine compound selected from the group consisting of a primary amine represented by the formula (II) R.sub.1 --NH.sub.2 wherein R.sub.1 stands for a hydrocarbon residue having 6 to 20 carbon atoms, a secondary amine represented by the formula (III) ##STR1## wherein R.sub.2 and R.sub.3 each stand for hydrocarbon residues having 6 to 20 carbon atoms, and mixtures thereof.

REFERENCES:
patent: 4065395 (1977-12-01), Bailey
patent: 4100081 (1978-07-01), Dreher et al.
patent: 4263156 (1981-04-01), Caruso
patent: 4529530 (1985-07-01), Shimizu et al.
patent: 4668411 (1987-05-01), Yasui et al.
patent: 4780231 (1988-10-01), Kinoshita et al.
patent: 4915860 (1990-04-01), Kinoshita et al.

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