Abstract:
Disclosed herein is a process for the preparation of alkylated diarylamines comprising adding said diarylamine an olefin mixture containing highly reactive fractions, as well as fractions exhibiting a relatively lower chemical reactivity, in the presence of an acidic clay catalyst at a temperature low enough to prevent substantial deactivation of the catalyst until the addition is complete and then increasing the temperature to increase the alkylation rate of the less reactive fractions.
Abstract:
An aqueous functional fluid composition free of formaldehyde and formaldehyde producing agents, more especially an aqueous metalworking fluid composition, having improved resistance to attack by micro-organisms is provided. This fluid comprises: a) water; b) a water soluble or dispersible functioning agent (e.g. water soluble or dispersible organic lubricant) and c) an antimicrobial effective amount of the combination of d) a water soluble or dispersible nitrogen bearing organic compound (e.g. monoethanolamine) and e) a water soluble or dispersible haloalkynylalkyl carbamate (e.g. 1-iodo-3-propynylbutyl carbamate).
Abstract:
This invention relates to a composition prepared by reacting (A) a boron compound and (B) a phospholipid. These phospholipids are useful as lubricant additives for oil-base and water-base functional fluids. These materials act as anti-wear and/or extreme pressure agents. Further, these materials when incorporated into aqueous compositions have beneficial bacteriostatic effects, i.e., controlling bacterial growth.
Abstract:
A solid lubricant for friction units contains graphite, phenol-formaldehyde resin, furfurol, hexamethylenetetramine, a filler of glass fibre or carbon fibre, and a synthetic oil based on the ester of pentaerythrite and synthetic fatty acids of fraction C5-C9 and containing mercaptobenzothiazole and paraoxydiphenylamine of the following ratio of the components in per cent by weight: graphite 35-40, phenol-formaldehyde resin 20-30, furfurol 13-25, hexamethylenetetramine 3-5, filler 1-5, synthetic oil the balance.
Abstract:
Gegenstand der Erfindung ist somit die Verwendung von Salzen aus Verbindungen der Formel (1) und Aminen der Formel (2) worin R1 C 8 - bis C 30 -AIkyl oder C 8 - bis C 30 -Alkenyl R2 Wasserstoff oder eine Gruppe der Formel -(A-O) x -H R3, R4 Wasserstoff, C 1 - bis C 4 -Alkyl oder eine Gruppe der Formel -(A-O) x -H A C 2 - bis C 4 -Alkylen x eine Zahl von 1 bis 10 bedeuten, als wasserlösliche bzw. wasserdispergierbare Korrosionsinhibitoren.
Abstract:
Disclosed herein is a process for the preparation of alkylated diarylamines comprising adding said diarylamine an olefin mixture containing highly reactive fractions, as well as fractions exhibiting a relatively lower chemical reactivity, in the presence of an acidic clay catalyst at a temperature low enough to prevent substantial deactivation of the catalyst until the addition is complete and then increasing the temperature to increase the alkylation rate of the less reactive fractions.
Abstract:
Lubricating oils exhibiting anti rust-properties are obtained by adding to the lubricating oil an acidic anti-rust additive and an acid scavenger such as carbodiimide, in a specific sequence.
Abstract:
An oil composition which contains as an antioxidant a three component mixture comprising (a) phenol or a derivative thereof, (b) an amine or a derivative thereof, and (c) a triazole or a derivative thereof. The mixture provides improved antioxidant properties, especially for electrical insulating oils.
Abstract:
A dispersant includes the reaction product of an amine and at least one equivalent of glycidyl ether where the amine is selected from a group consisting of aminoethylpiperazine, bis(2-(piperazin-1-yl)ethyl)amine, 4,4'-methylenebiscyclohexylamine, m-xylenediamine, diethylenetriamine, and triethylenetetramine and where the glycidyl ether has the structure (A), where R is selected from aromatic carbon chains, non-aromatic carbon chains and polyalkylene glycol groups. The dispersant is useful in a lubricant with a base oil for increasing soot dispersiblity of the lubricant.
Abstract:
A lubricating oil composition prepared by blending a lube base oil with (A) at least either molybdenum dithiocarbamate or molybdenum dithiophosphate and (B) an aromatic compound having at least one functional group selected from among hydroxyl, carboxyl, mercapto and thiocarboxyl groups on the aromatic ring. This composition enables the maintenance of low frictional characteristics and the continuation of fuel-cost saving performance over a long period, and can be reduced in the amount of an organomolybdenum compound to be added as a friction modifier.