Abstract:
Particles of thiocarbonate salts, thioesters or complexes are stabilized by being isolated from contact with water, CO₂ and oxygen and are encapsulated in a coating effective to prevent future contact of the particles with water, CO₂ and oxygen. The particles are preferably prepared in an environment from which water, CO₂ and oxygen are excluded. The coating may be a wax, a water-free oil or grease, sulfur or a natural or synthetic polymerizable resin. Various preparative and encapsulating techniques are disclosed.
Abstract:
A composition which comprises (a) a salt of monovalent metal (M) of a carboxylic acid in which the COOH group is attached to a ring atom of a fused ring system and (b) a grease which is a non-soap thickened oil which may be a mineral oil or a synthetic oil such as a silicone oil. The metal (M) may be sodium. The fused ring system is preferably a fused aromatic hydrocarbon ring system such as naphthalene and may include further substituents, for example an -OH group, in addition to the COOH group. If the acid contains both OH and COOH groups, these can be attached to adjacent atoms of the fused ring system. Sodium 2-naphthoate and sodium 3-hydroxy-2-naphthoate have been found to be particularly suitable. The grease has improved corrosion resistance and the addition of the metal compound does not result in destructing of the grease.
Abstract:
A lubricant composition comprising a water-based lubricant a particulate solid lubricant such as graphite suspended in the water-based lubricant and uniformly dispersed therethrough and a thixotropic thickener which maintains the solid lubricant in suspension in the water-based lubricant.
Abstract:
A lubricant composition comprising a water-based lubricant a particulate solid lubricant such as graphite suspended in the water-based lubricant and uniformly dispersed therethrough and a thixotropic thickener which maintains the solid lubricant in suspension in the water-based lubricant.
Abstract:
L'invention concerne une composition de remplissage d'un câble, notamment d'un câble contenant au moins une fibre optique, utilisable entre -50°C et +80°C. Selon l'invention, cette composition comprend :
i) 80 à 95% en poids d'au moins une base lubrifiante de viscosité inférieure à 7000 mm²s⁻¹ à -40°C, et ii) 20 à 5% en poids d'un produit gélifiant.
Son point de goutte est supérieur à 120°C et sa pénétrabilité au cône est comprise entre 250 et 400 dixièmes de millimètres à +25°C, et entre 150 et 250 dixièmes de millimètres à -40°C.
Abstract translation:用于填充电缆的组合物技术领域本发明涉及用于填充电缆的组合物,特别是包含至少一根光纤的电缆,其可以在-50℃和+ 80℃之间使用。 根据本发明,该组合物包含:i)80-95重量%的至少一种在-40℃下粘度小于7000mm 2 s -1的润滑基料,和ii)20-5重量%的 胶凝产品。 其下降点大于120℃,并且其锥形穿透性在+ 25℃下在250和400个十分之几毫米之间,在-40℃下在150和250个十亿分之一毫米之间
Abstract:
본발명은식품친화성고온윤활제, 특히고온오일및 고온그리스에관한것으로, a) 트리멜리틱에스테르및 다른트리멜리틱에스테르의혼합물, 알킬방향족화합물(바람직하게는, 지방족으로치환된나프탈렌), 및에스톨라이드로부터선택된적어도하나의오일; b) 수소화된폴리이소부틸렌, 완전히수소화된폴리이소부틸렌, 또는이들의혼합물; 및 c) 하나이상의첨가제의성분을포함한다. 고온그리스의경우, 증점제(thickener)가더 첨가된다.
Abstract:
In a particular embodiment, the invention concerns a lubricating grease having 70 to 95 percent by weight of a mixture that includes at least a first ester of fatty acid and of sorbitan, and at least a second ester of fatty acid and of polyoxyalkylated sorbitan. The esters are present in quantities by weight, relative to the weight of the mixture, of 10 to 90 percent and 90 to 10 percent respectively. The grease also includes from 5 to 30 percent by weight of at least one thickening agent.