摘要:
Disclosed are compounds represented by structural formula (I): R\ Ry (Rcλi methods of producing compounds represented by structural formula (I), and their use in inhibiting oxidation in an oxidizable material.
摘要翻译:公开了由结构式(I)表示的化合物:R 1 R y(R c 1)由结构式(I)表示的化合物的制备方法及其在可氧化材料中的抑制氧化的用途。
摘要:
The present invention provides a method of asphaltene control in a hydrocarbon fluid, the method employing a composition comprising: a dispersant of formulae (I) or (II), including salts thereof, wherein T or T' is hydrogen or a polymerizing terminating group; A is C 16 - 20 alkylene or alkenylene group; B is C 10 - 20 alkylene or alkenylene group; Z and Z' are the residue of a polyamine or polyimine; n is 2 to 50; m is 0 to 25; p and p' are 2 or more, in one embodiment not greater than 2000 and in another embodiment not greater than 1000; A' is C 8 - 20 alkylene or alkenylene group; n' is 2 to 10; and the weight ratio of T-(O-A-CO) n (O-B-CO) m to Z or T'-(O-A'-CO) n to Z' is at least 5:1.
摘要:
According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) bis(para-amino cyclohexyl) methane oligomers, wherein the reactants are contacted in a reaction zone in the substantial absence of polar organic solvents.
摘要:
According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) an amido-amine characterized by being a reaction product of an alpha, beta-unsaturated compound of formula (I), wherein X is sulfur or oxygen, Y is -OR , -SR , or -NR (R ), and R , R , R , R and R are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, and bis(para-amino cyclohexyl) methane or oligomers thereof.
摘要:
Polytetrahydrobenzoxazine und Bistetrahydrobenzoxazine, erhältlich durch (A) Umsetzung mindestens eines Diamins der Formel H 2 N-A-NH 2 mit einem C 1 - bis C 12 -Aldehyd und einem C 1 - bis C 8 -Alkanol bei 20 bis 80°C unter Abspaltung und Entfernung von Wasser, (B) Umsetzung des Kondensationsproduktes aus (A) mit einem Phenol, welches einen langkettigen Substituenten trägt, bei 30 bis 120°C und gegebenenfalls (C) Erhitzen des Umsetzungsproduktes aus (B) auf 125 bis 280°C. Die erhaltenen Polytetrahydrobenzoxazine und Bistetrahydrobenzoxazine eignen sich als Kraftstoff- oder Schmierstoffadditive, insbesondere als Detergensadditive für Dieselkraftstoffe.
摘要:
Die vorliegende Erfindung betrifft die Verwendung von Polyaminen mit wenigsten einer terminalen sekundären oder tertiären Aminfunktion als Detergensadditiv für Kraft- und Schmierstoffe; Additivkonzentrate, enthaltend derartige Polyamine; mit diesen Polyaminen additivierte Kraft- und Schmierstoffe und Verfahren zu deren Herstellung.
摘要:
This invention relates to novel water soluble metal working fluid compositions, their use to work metal, a process for working metal using such compositions and the metal worked article of manufacture. More particularly, this invention relates to fluid compositions useful in cutting, grinding, shaping and other metal working operations which require a lubricant. The terms "first Group A" and "second Group B" are used herein to denote different groups and not to indicate any sequence of use or selection as any possible combination or sequence of use of a component(s) is envisioned without limit of any kind. The disclosed fluid compositions are also anticorrosive and environmentally more acceptable than current oil based fluids. There has now been discovered an essentially odorless, substantially non-oil misting, water-soluble metal working fluid comprising at least one component selected from a first Group A herein and optionally one or more components selected from a second Group B herein preferably with the balance of the composition being water and other (optional) minor ingredients. When a component is employed from Group A and a component is employed from Group B the action of the combination generally enhances performance of the resulting combination with contain moieties from both Group A and Group B.
摘要:
La presente patente trata de un aceite lubricante adicionado con nano partículas de grafeno decorado, el cual es llamado nanolubricante. Este nanolubricante tiene aplicaciones automotrices e industriales y ofrece como principales beneficios mejoras simultaneas en las propiedades térmicas, Teológicas y tribológicas del lubricante usado como fluido base. Adicionalmente, este nanolubricante ofrece un comportamiento reopéctico a partir de una concentración específica, mismo comportamiento que le confiere la capacidad de incrementar su viscosidad a través del tiempo mientras esté sometido a una tasa de corte constante. Por último, el grafeno decorado puede incluir nanopartículas metálicas, cerámicas o poliméricas, puede estar en un rango de concentración de 0.5 % peso/peso hasta 2% peso/peso sin que el lubricante base cambie su comportamiento de fluido newtoniano, mientras que para concentraciones mayores a 2% peso/peso y hasta 3% peso/peso se observará el comportamiento reopéctico antes mencionado.