PLASTIC LUBRICANT FOR FEEBLE-CURRENT ELECTRIC CONTACTS Russian patent published in 2014 - IPC C10M169/02 C10M119/24 C10N30/06 C10N40/14 

FIELD: chemistry.

SUBSTANCE: invention relates to plastic lubricant for feeble-current electric contacts, on synthetic base, which contains polycarbamide thickening agent, representing product of interaction of octadecylamine, aniline and polyisocyanate. Weight part of isocyanate groups in polycarbamide thickening agent constitutes 31.5-38.0 wt %; as synthetic base, composition contains mixture of pentaerythrite ethers and fatty acids of fraction C₅-C₉ with silicone fluid at ratio from 10:90 to 90:10 wt %, or with polyalphaolefin oil at ratio from 20:80 to 80:20 wt %, and additionally contains hydrophobic silicagel with the following component ratio, wt %: polycarbamide thickening agent 5.8-12.0; hydrophobic silicagel 0.1-5.0; synthetic base to 100.

EFFECT: obtaining lubricant, which has improved tribological and dielectric characteristics, which makes it possible to apply claimed composition in low-voltage and feeble-current equipment, and selected ratio of certain dispersion media extends temperature range of application.

2 cl, 2 tbl