SEALING CORROSION-PREVENTIVE GREASE Russian patent published in 1997 - IPC

FIELD: metallic and non-metallic joints working in liquid corrosive media. SUBSTANCE: grease consists of compound, hardening agent and filler. Innovation of invention consists in use of VILAD polyurethane compounds as compound of grease, polyisocyanates as hardening agent and hydrocarbon grease, liquid hydrocarbon C_5+higher and powder possessing extreme-pressure and antiwear properties and anti-corrosive and metal-cladding additive as filler. Components are used in the following relationship , mas.%: VILAD polyurethane compound, 30-50; hardening agent, 2.3-5.4; grease, 12-25; liquid hydrocarbon C_5+higher, 15-35; extreme-pressure antiwear powder, 8.9-17.3; and metal cladding additive, 0.5-6. To increase or decrease rate of reaction, catalyst or inhibitor may be added in amount of 0.1-0.2 g per 100 g of substance. EFFECT: enhanced efficiency. 2 cl, 4 tbl