摘要:
α-Phenylethylreste enthaltende m-Hydroxidiphenylamine der Formel in der R 1 und R 2 Wasserstoff oder den a-Phenylethylrest der Formel bedeuten, jedoch mit der Maßgabe, daß nur einer der Reste R 1 oder R 2 einen α-Phenylethylrest bedeuten kann und deren Verwendung als Antioxidantien in Mineralölen.
摘要:
Disclosed are compounds represented by structural formula (I): methods of producing compounds represented by structural formula (I), and their use in inhibiting oxidation in an oxidizable material.
摘要:
Lubricating oils for rolling of steel plates, which are composed of synthetic ester compounds obtainable from tri- or higher-valent alcohols having tertiary nitrogen such as isocyanuric derivatives or ethylene oxide addition products of ethylenediamine and fatty acids, possess well-balanced rolling lubricating properties and mill cleanability at a high level.
摘要:
Lubricating oils for rolling of steel plates, which are composed of synthetic ester compounds obtainable from tri- or higher-valent alcohols having tertiary nitrogen such as isocyanuric derivatives or ethylene oxide addition products of ethylenediamine and fatty acids, possess well-balanced rolling lubricating properties and mill cleanability at a high level.
摘要:
wherein R1 is a substituted or unsubstituted aryl or polyaryl group having from about 4 to about 40 carbon atoms, and R2 is a substituted or unsubstituted, linear or branched, alkyl group having from about 4 to about 40 carbon atoms. The composition has a viscosity (Kv100) from about 1 to about 10 cSt at 100° C. as determined by ASTM D-445, a viscosity index (VI) from about −100 to about 300 as determined by ASTM D-2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D-5800. The disclosure also relates to a process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method of reducing boundary friction and improving dispersancy of polar additives of a lubricating oil by using as the lubricating oil a formulated oil containing the composition.
摘要:
wherein R1 is a substituted or unsubstituted aryl or polyaryl group having from about 4 to about 40 carbon atoms, and R2 is the residue of a substituted or unsubstituted glycol ether having from about 4 to about 40 carbon atoms. The composition has a viscosity (Kv100) from about 1 to about 10 cSt at 100° C. as determined by ASTM D-445, a viscosity index (VI) from about −100 to about 300 as determined by ASTM D-2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D-5800. The disclosure also relates to a process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of oxidative stability, solubility and dispersancy of polar additives of a lubricating oil by using as the lubricating oil a formulated oil containing the composition.
摘要:
Lubricating oils for rolling of steel plates, which are composed of synthetic ester compounds obtainable from tri- or higher-valent alcohols having tertiary nitrogen such as isocyanuric derivatives or ethylene oxide addition products of ethylenediamine and fatty acids, possess well-balanced rolling lubricating properties and mill cleanability at a high level.
摘要:
An object of the present invention is to provide a fluoropolyether compound, a lubricant, and a magnetic disk that have such an excellent heat resistance as to be able to maintain the lubricity of the magnetic disk surface, without evaporating at high temperatures under laser heating, and also to provide a method for producing the disk. The present invention relates to a fluoropolyether compound, a lubricant containing the compound, a magnetic disk containing the compound, and a method for producing the disk. The fluoropolyether compound contains a C 4-10 aliphatic hydrocarbon chain present in the middle of the molecule and at least two perfluoropolyethers, each perfluoropolyether being ether-linked to the C 4-10 aliphatic hydrocarbon chain, the aliphatic hydrocarbon chain having at least one hydroxyl group, the at least two perfluoropolyethers having, at their non-hydrocarbon chain terminals, at least one polar group selected from the group consisting of -OH, -OCH 2 CH(OH)CH 2 OH,-OCH 2 CH(OH)CH 2 OCH 2 CH(OH)CH 2 OH, -O(CH 2 ) m OH, and -OCH 2 (OH)CHCH 2 -OC 6 H 4 -R 1 wherein m is an integer of 2 to 8, and R 1 represents hydrogen, C 1-4 alkoxy, amino, or an amide residue.