1,259,339. Spiroheterocyclic pentaco-ordinate silicon compounds. DOW CORNING CORP. 18 Nov., 1969 [17 Dec., 1968], No. 56264/69. Heading C3S. [Also in Divisions C4-C5] Novel spiroheterooyclic pentaco-ordinate silicon compounds of the formula wherein R represents -CF 3 or a C 1-6 hydrocarbon radical free of aliphatic unsaturation, Z represents a C 1-6 hydrocarbon radical free of aliphatic unsaturation or a -CH 2 CH 2 A radical in which A is a C 1-4 perfluoroalkyl radical, and R1 and Y represent hydrogen or methyl radicals, are prepared by reacting a heterocyolic silane of the formula in which X represents an alkoxy radical, with an alkanolamine of the formula in the presence of a suitable solvent. The coordinate link may be broken with carbon tetrachloride to give a corresponding tetravalent silicon compound. The psntaco-ordinate products may be used as corrosion inhibitors and antioxidants for lubricating oils and greases. Phenyl - (tetramethylethylenedioxy) methoxysilane is prepared by heating phenyl trimethoxysilane with pinacol in presence of sodium methoxide.
ynthetic lubricants containing (A) 15 to 45 weight percent of an ester of a hindered polyhydric alcohol having 3 to 6 hydroxy groups and 5 to 10 carbon atoms with one or more alkanoic acids having 4 to 18 carbon atoms blended with (B) 85 to 55 weight percent of one or more polyoxyalkylene glycols or their mono- or dialkyl ethers having a 400-5000 number average molecular weight. The blends are compounded with antioxidants, corrosion inhibitors, and metal deactivators to produce a superior lubricant for rotary screw compressors that has a long life.
The present invention describes a water based semi-synthetic metal working fluid comprising a base oil, an organic acid, emulsifiers, optionally a concentrate additive, water and a microbial growth control agent which comprises a glycol ether amine.
The present invention describes a water based semi-synthetic metal working fluid comprising a base oil, an organic acid, emulsifiers, a concentrate additive, water and a microbial growth control agent which comprises an alky alcohol amine.
The present invention describes a water-based metal working fluid comprising a base oil, an organic acid, optionally emulsifiers, a concentrate additive, water and a microbial growth control agent which comprises an aminopropanediol.
The current invention relates to a novel class of alkyl alcohol amines where the amine is a primary amine. Embodiments relate to a method of controlling microbial growth in metal working fluids, comprising adding such an alkyl alcohol amine to the metal working fluid. Other embodiments relate to semi-synthetic metal working fluid compositions which include the microbial growth control agent comprising this particular class of alkyl alcohol amines.
本发明涉及一种润滑剂组合物，所述润滑剂组合物包含(A)非硅酮基础原料油和(B)硅酮油。如根据ASTM？D？2270-10e1测得的所述润滑剂组合物的粘度指数比所述非硅酮润滑剂基油(A)的粘度指数大至少10％并且所述润滑剂组合物根据DIN？51350-6为剪切稳定的。
PURPOSE:To improve the airtightness of a compression chamber and improve compression efficiency by providing a ring-shaped plate on the inner periphery on the upper end plate side of the piston of a rolling piston type rotary compressor. CONSTITUTION:A ring-shaped plate 7b having a width which allows a piston 7a to rotate is provided on the end inner periphery on the upper end plate 4 side of the piston 7a of a rolling piston type rotary compressor. Accordingly, the contact area between the inner wall face of the upper end plate 4 and the side face of the piston 7a is increased, and the airtightness of a compression chamber is made excellent and compression efficiency can be improved.
其中R1、R2、R3、R4、R5、R6、X和n如所定义的式I的阳离子表面活性剂可用于多种应用中，包括清洁剂、洗涤剂和个人护理产品，特别是洗发剂和护发素。
