摘要:
PROBLEM TO BE SOLVED: To provide a method for producing fluorine-containing polyether carboxylic acid amide the one molecular terminal end of which is a chemically-inactive perfluoroalkyl group and the other molecular terminal end of which is modified with a heterocyclic compound group containing a nitrogen atom. SOLUTION: When the fluorine-containing polyether carbonyl fluoride represented by general formula: C n F 2n+1 O(C 3 F 6 O) m RfCOF (wherein Rf is a 1-2C fluorocarbon group; n is an integer of 1-3; m is an integer of 10-30) is reacted with a nitrogen-containing heterocyclic amine compound ArNH 2 (wherein Ar is a nitrogen-containing heterocyclic compound group), the reaction temperature is raised to 80-100°C and then the reaction temperature is raised within temperature rising width where the raised temperature after 48 hours is kept within 3-5°C to perform the reaction, and the fluorine-containing polyether carboxylic acid amide represented by general formula: C n F 2n+1 O(C 3 F 6 O) m RfCONHAr (wherein Rf, Ar, n and m are each as defined above) is produced. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译:待解决的问题:提供一种分子末端为化学惰性的全氟烷基,其它分子末端用杂环化合物基团改性的含氟聚醚羧酸酰胺的制备方法 含有氮原子。 < P>解决方案:当通式为:C n SB> F 2n + 1 SB>的含氟聚醚酰氟 RfCOF(其中Rf为1-2C碳氟化合物; n为1-3的整数,m为10-30的整数)反应 使用含氮杂环胺化合物ArNH 2 SB>(其中Ar是含氮杂环化合物基团),将反应温度升至80-100℃,然后将反应温度升高至 48小时后的升高温度保持在3-5℃以进行反应的上升宽度,通式为:C N SP> F 2n的含氟聚醚羧酸酰胺 (其中R f,Ar,n和m各自如上所定义),其中R f,Ar,n和m各自如上所定义。 以上)。 版权所有(C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a lubricating oil which contains an additive to offer improved dispersibility. SOLUTION: The lubricating oil comprises, as an additive, an imidazoline compound containing the reaction product of (i) a dicarbonyl, (ii) a primary amine moiety of a polyamine and (iii) a hydrocarbyl carbonyl. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
A hydraulic system containing a piston-type pump having wear surfaces containing copper or a copper alloy, and, optionally, a vane-type pump having wear surfaces containing steel, uses an antiwear hydraulic fluid having an oil of lubricating viscosity and minor amounts of zinc dithiophosphare and a wear moderating agent. The wear moderating agent is an aliphatic amine, an aliphatic polyamine, and aliphatic imidazoline, or mixtures of any combination thereof. The aliphatic groups of the wear moderating agent are substantially straight-chained, and the wear moderating agent contains at least ten carbon atoms.
摘要:
A composition suitable for use as a turbine or rust and oxidation (R&G) oil comprising a major portion of a base oil and (A) at least one neutral rust inhibitor, wherein the base oil has a viscosity index of greater than 80, a saturates content of greater than 90 wt% and a sulfur content of 0.5 wt% or less providing improved filterability. Further improved hydrolytic stability may be obtained by the addition of (B) a compound of the formula:
摘要:
A process for preparing lubricating grease comprising a mixture containing from 15% to 40% by weight of polytetrafluoroethylene, from 60% to 85% by weight of a liquid dispersing medium which is a particularly defined perfluoropolyether or oligomer of trifluorochloroethylene, and 0.1% to 0.4% by weight of a perfluoroalkyl or polyoxyperfluoroalkyl surfactant and, optionally, a stabilizing and anticorrosive agent selected from polyoxyperfluoroderivatives, the mixture being subjected to grinding in order to obtain the disaggregation of the polytetrafluoroethylene granules into primary particles not larger than 1 micron.