Abstract: A lubricating oil composition, which comprises a perfluoropolyether base oil, and a fluorine-containing polyether diphosphonic acid ester, represented by the following general formula: (R2O)(R1O)P(O)(CH2)aCF(CF3)[OCF2CF(CF3)]bO(CF2)cO[CF(CF3)CF2O]dCF(CF3)(CH2)eP(O)(OR3)(OR4) (where R1, R2, R3, and R4 are hydrogen atoms, alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, aralkyl groups, or any of the foregoing groups can be halogen atom-substituted groups, subscripts a, b, c, d, and e are in conditions of 2?a+e?8, b+d?28, and 1?c?10, and b and d can be 0), and a grease composition which further contains a thickening agent in addition to the lubricating oil composition, have distinguished abrasion resistance and rust preventiveness without deteriorating the heat resistance inherent in the lubricating oil and the grease containing a perfluoropolyether oil as a base oil.
Abstract: The invention concerns a threaded component for a seizure-resistant tubular threaded joint wherein a lubricating substance is deposited in a thin film on at least the surface of the threads of the threading, said surface being treated to adsorb said lubricating substance. The lubricating substance consists of a homogeneous mixture of a) a thickening agent; b) a set of extreme-pressure additives physically and chemically compatible with the thickening agent and comprising at least an extreme-pressure additive with chemical action called chemical EP additive and capable of being used at Hertz pressures not less than 1000 Mpa's; c) an oil. The proportions of the constituents of the lubricating substance are selected such that said lubricating substance has a consistency capable of ensuring a self-induced and film-forming lubricating process. The invention also concerns a method for producing the thin film.
Type:
Grant
Filed:
August 9, 2001
Date of Patent:
August 23, 2005
Assignees:
Vallourec Mannesmann Oil & Gas France, Condat S.A.
Abstract: A translucent wire and cable lubricant containing from about 30 to about 80 weight percent of a mixture further comprising a resin and an oil, from about 10 to about 40 weight percent solvent, from about 1 to about 15 weight percent thermoplastic synthetic polymer, from about 1 to about 15 weight percent oxidized wax, from about 1 to about 15 percent sheep tallow, an extreme pressure agent, an antiwear agent, and a corrosion inhibitor.