PLASTIC GREASE Russian patent published in 2003 - IPC

FIELD: lubricants. SUBSTANCE: grease suitable for greasing stop valves of trunk and gas- distributing stations contains, wt %: stearic acid 12.0-18.0, lithium hydroxide 2.0-3.0, polymer 0.4-8.0, graphite 0.5- 5.0, multifunctional additive: boron-modified zinc dialkyl dithiophosphate 0.1-1.0, cellulose 0.5-5.0, and distillate oil with congelation temperature below -45 C - to 100. As polymer, polyisobutylene or butadiene/styrene thermal elastomeric plastic, or synthetic rubber, or atactic polypropylene. EFFECT: enhanced sealing ability and improved lubricating properties of grease due to extended working capacity temperature range from -60 to +120 C, and ensured environmental safety. 2 cl, 2 tbl