КОМПОЗИЦИЯ КОНСИСТЕНТНОЙ СМАЗКИ С ПОВЫШЕННЫМИ АНТИКОРРОЗИОННЫМИ СВОЙСТВАМИ И СОПРОТИВЛЕНИЕМ ИЗНОСУ, СПОСОБ ПОЛУЧЕНИЯ СМАЗКИ

Изобретение относится к области смазочных материалов. Сущность: консистентная смазка, содержащая масляную основу и загуститель, дополнительно содержит от 0,05% до 30 вес.% тиосульфата натрия и, по меньшей мере, 0,1 вес.% одной или нескольких присадок (А), выбранных из группы, включающей салицилат кальция, салицилат магния, фенолят кальция и/или сульфонат кальция, в расчете на всю смазку. Указанная консистентная смазка применяется для предотвращения коррозии и повышения износостойкости. Консистентную смазку получают путем предварительного смешения тиосульфата натрия с одной или несколькими присадками (А) и добавления смеси к основе смазки, содержащей базовое масло и загуститель, или путем введения в основу смазки тиосульфата натрия и одной или нескольких присадок (А) по отдельности. Технический результат - повышение ингибирующих коррозию свойств и износостойкости при сохранении противозадирных свойств. 3 с. и 7 з.п. ф-лы, 9 табл.

Металлические соединения каликсаренов, содержащие их моющие составы и их применение в составах смазочных масел

Настоящее изобретение относится к продукту для применения в моющих составах, содержащему смесь металлических соединений каликсарена, не содержащего серы и диспергируемого в масле, которые могут быть частично представлены в виде соли, или быть нейтральными, или основными, или сверхосновными. Указанный каликсарен имеет общую формулу (I)в которой a) R, R, Rи Rнезависимо выбраны из водорода или линейного или разветвленного алкила с числом атомов углерода от 6 до 18; b) Rи Rпредставляют атомы водорода; c) n - число звеньев каликсаренового кольца, которое составляет 5, 6, 8; при этом по меньшей мере в одном из n звеньев каликсаренового кольца по меньшей мере один из заместителей R, R, Rи Rсодержит по меньшей мере одну кислотную группу карбонового типа, доступную для реакции с металлическим основанием, в котором металл выбран из щелочных металлов и щелочноземельных металлов, при условии, что указанная кислотная группа карбонового типа не содержится в звене каликсаренового кольца, относящегося ...

СМАЗКИ С ДИАЛКИЛДИТИОФОСФАТОМ ЦИНКА И ИХ ПРИМЕНЕНИЕ В ДВИГАТЕЛЯХ ВНУТРЕННЕГО СГОРАНИЯ С НАДДУВОМ

Предложена композиция смазочного масла, применение и способ обеспечения приемлемого числа случаев преждевременного воспламенения смеси при низких оборотах в двигателе внутреннего сгорания с применением композиции смазочного масла. Композиция содержит: более 50 масс. % базового масла, выбранного из группы, состоящей из базового масла I группы, базового масла II группы, базового масла III группы, базового масла IV группы, базового масла V группы и их смеси, в расчете на общую массу композиции смазочного масла; и композицию присадки, содержащую: моющую присадку сверхосновного сульфоната кальция, моющую присадку сверхосновного фенолята кальция или их смесь с общим щелочным числом от более 225 до 400 мг KOH/г, измеренным способом согласно ASTM D-2896, и одно или более диалкилдитиофосфатных соединений цинка, где указанные одно или более диалкилдитиофосфатных соединений цинка обусловлены молярным отношением вторичного спирта к первичному спирту, равным от 20:100 до 100:0, и имеют среднее общее ...

СМАЗКИ С ТИТАНОМ И/ИЛИ ВОЛЬФРАМОМ И ИХ ПРИМЕНЕНИЕ ДЛЯ УМЕНЬШЕНИЯ ПРЕЖДЕВРЕМЕННОГО ВОСПЛАМЕНЕНИЯ СМЕСИ ПРИ НИЗКИХ ОБОРОТАХ

Предложены композиция смазочного масла и способ снижения числа случаев преждевременного воспламенения смеси при низких оборотах в двигателе внутреннего сгорания с наддувом. Композиция смазочного масла включает: более 50 масс.% базового масла, выбранного из группы, состоящей из базового масла I группы, базового масла II группы, базового масла III группы, базового масла IV группы, базового масла V группы и их смесей; количество одной или более сверхосновных кальцийсодержащих моющих присадок с общим щелочным числом более 225 мг KOH/г при измерении способом согласно ASTM D-2896, достаточное для обеспечения от более 900 ppm по массе до менее 1800 ppm по массе кальция в композиции смазочного масла, относительно общей массы композиции смазочного масла, при этом одна или более сверхосновных кальцийсодержащих моющих присадок включает соединение, выбранное из моющей присадки сверхосновного сульфоната кальция, моющей присадки сверхосновного фенолята кальция и моющей присадки сверхосновного салицилата ...

ПОЛИАМИДНЫЕ КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ПОЛИАМИД 6,6 И СМЕСЬ ДЛИННОЦЕПОЧЕЧНЫХ ПОЛИАМИДОВ, ИХ ПРИМЕНЕНИЕ, А ТАКЖЕ ПОЛУЧАЕМЫЕ ИЗ НИХ ИЗДЕЛИЯ

Изобретение относится к полиамидной композиции. Описана полиамидная композиция для получения изделия, обладающего улучшенной химической стойкостью, содержащая: (a) по меньшей мере одну полиамидную смесь, сформированную из (i) полиамида 6,6, в котором количество концевой группы амина (aeg) больше, чем количество концевой группы карбоновой кислоты (ceg); и (ii) смеси первого длинноцепочечного полиамида, имеющего значение вязкости (vn), равное x, и второго длинноцепочечного полиамида, имеющего значение vn, равное x; (b) по меньшей мере один армирующий наполнитель; (c) по меньшей мере один термостабилизатор; и (d) по меньшей мере один ионный смазочный материал, где xбольше чем x, а значение vn измеряется в соответствии со стандартом iso 307 в растворе полиамида с концентрацией 0,005 г/мл при температуре 25°C. Также описаны применение полиамидной композиции, изделие, и применение смеси первого длинноцепочечного полиамида. Технический результат: улучшение химической стойкости полиамидной композиции ...

СПОСОБ ПОЛУЧЕНИЯ ЗАГУЩЕННЫХ ПОЛИМОЧЕВИНОЙ КОНСИСТЕНТНЫХ СМАЗОК НА ОСНОВЕ ПРОИЗВОДНЫХ ЛИГНИНА, КОНСИСТЕНТНЫЕ СМАЗКИ И ИХ ПРИМЕНЕНИЕ

Изобретение относится к способу получения консистентных смазок на основе производных лигнина, загущенных полимочевинным загустителем, к полученным таким способом консистентным смазкам и к применению таких консистентных смазок для смазывания, по меньшей мере, шарнира равных угловых скоростей, в частности гомокинетических шарнирных валов, коробки передач или подшипников качения и скольжения, в частности уплотненных подшипников качения. Способ заключается в смешивании аминного компонента с изоцианатным компонентом в первом базовом масле и проведение реакции этих компонентов с получением полимочевинного загустителя; затем проводится нагревание до температуры, превышающей 120С, с получением содержащей по меньшей мере полимочевинный загуститель основы смазки, включающей по меньшей мере первое базовое масло; и охлаждение основы смазки. Получаемая данным способом консистентная смазка содержит: от 55 масс. % до 92 масс. % базового масла; от 5 масс. % до 20 масс. % полимочевинного загустителя и от ...

СУДОВОЕ МАСЛО

Настоящее изобретение относится к цилиндровому маслу, имеющему BN, не менее 40 миллиграмм гидроксида калия на грамм масла, содержащему базовое масло для судового двигателя и по меньшей мере один сверхщелочной детергент на основе щелочных или щелочноземельных металлов, характеризующееся тем, что оно дополнительно содержит от 0,01 масс.% до 10 масс.% от общей массы масла одного или нескольких соединений (А), выбранных из сложных эфиров насыщенных жирных монокислот, содержащих не менее 14 атомов углерода, и спиртов, содержащих не более 6 атомов углерода, где соединения (А) выбраны из моноэфиров одноатомных спиртов и диэфиров, и где по меньшей мере один сверхщелочной детергент на основе щелочных или щелочноземельных металлов выбран из группы, состоящей из фенолятов, сульфонатов, салицилатов и смесей указанных детергентов, где указанный детергент является сверхщелочным за счет карбоната кальция. Также настоящее изобретение относится к применению цилиндрового масла (варианты), к способам получения ...

СПОСОБ ПОЛУЧЕНИЯ СМАЗКИ НА ОСНОВЕ КОМПЛЕКСА СУЛЬФОНАТА КАЛЬЦИЯ

Настоящее изобретение относится к однофазному способу приготовления смазки на основе комплекса сульфоната кальция. В частности, изобретение относится к однофазному способу приготовления смазки на основе комплекса сульфоната кальция в отсутствие борной кислоты, включающему осуществление по меньшей мере одной стадии под давлением по меньшей мере 400 кПа и при температуре по меньшей мере 130°С. 18 з.п. ф-лы, 12 табл., 6 пр.

СМАЗОЧНОЕ МАСЛО ДЛЯ ДВИГАТЕЛЕЙ ВНУТРЕННЕГО СГОРАНИЯ

Смазочное масло для двигателей внутреннего сгорания содержит, (в % ): 0,01 - 2,00 неполного сложного эфира жирной кислоты и многоатомного спирта, 0,01 - 15 продукта взаимодействия полиизобутиленянтарной кислоты с алкиленполиамином, 0,01 - 2,0 соли металла диалкилдитиофосфорной кислоты и до 100 нефтяного масла. Продукт взаимодействия получен на основе полиизобутиленянтарной кислоты, содержащей 1,3 - 4 групп янтарной кислоты на эквивалентную массу полиизобутилена, имеющего средне-числовую мол. м. 1300 - 5000 и отношение среднемассовой мол. м. к средне-числовой составляет 1,5 - 4,5. Содержание алкиленполиамина составляет 1 - 2 молярных эквивалента на эквивалент кислоты. В соли диалкилдитиофосфорной кислоты один алкил представляет изопропил или вторичный бутил, другой алкил содержит 5 - 13 атомов углерода при содержании 10 - 90% молярных изопропильных или вторичных бутильных групп. Металлом является металл II группы, алюминий, олово, железо, кобальт, свинец, молибден, марганец, никель или медь ...

КОМПОЗИЦИЯ СМАЗОЧНОГО МАСЛА

... 1. Применение в композиции смазочного масла, содержащей базовое масло, одной или более магнийсодержащих моющих присадок для уменьшения засорения дизельного фильтра твердых частиц. 2. Применение по п.1, в котором засорение измеряется с помощью теста дизельного фильтра твердых частиц Volkswagen. 3. Применение по п.1 или 2, в котором композиция смазочного масла содержит сульфатированную золу в количестве не более 1,0 мас.% по отношению к общему весу композиции смазочного масла. 4. Применение по п.1 или 2, в котором одну или более магнийсодержащих моющих присадок выбирают из магний-салицилатных моющих присадок, магний-фенолятных моющих присадок, магний-сульфонатных моющих присадок. 5. Применение по п.4, в котором одна или каждая из более чем одной магнийсодержащих моющих присадок имеют независимо TBN (общее щелочное число), измеренное согласно ISO 3771, в пределах от 30 до 600 мг КОН/г. 6. Применение по п.1 или 2, в котором базовое масло выбирают из минерального масла и/или синтетического масла ...

УЛУЧШЕННЫЕ ИЗОЛИРУЮЩИЕ ТЕКУЧИЕ СРЕДЫ НА ВОДНОЙ ОСНОВЕ И СПОСОБЫ, СВЯЗАННЫЕ С НИМИ

... 1. Изолирующая текучая среда на водной основе, которая включает водную основу текучей среды, органическую жидкость, смешивающуюся с водой, и синтетический полимер. ! 2. Изолирующая текучая среда на водной основе по п. 1, в которой синтетический полимер сшивают. ! 3. Изолирующая текучая среда на водной основе по п. 1, в которой изолирующая текучая среда на водной основе далее включает добавку, выбранную из группы, содержащей: ингибиторы коррозии, модификаторы pH, биоциды, стеклянную дробь, полые сферы, полые микросферы, модификаторы реологии, буферы, ингибиторы гидратообразования, деэмульгаторы, индикаторы, дополнительные утяжелители, загустители, поверхностно-активные вещества и их комбинации. ! 4. Изолирующая текучая среда на водной основе по п. 1, в которой изолирующая текучая среда на водной основе включает солевой раствор, выбранный из группы содержащий: NaCl, NaBr, КCl, CaCl2, CaBr2, ZrBr2, карбонат натрия, формиат натрия, формиат калия, формиат цезия, и комбинации и производные этих ...

СМАЗЫВАЮЩАЯ КОМПОЗИЦИЯ

... 1. Смазывающая композиция для применения в картере двигателя, включающая базовое масло и одну или несколько присадок, где базовое масло представляет собой базовое масло, полученное в синтезе Фишера-Тропша, причем смазывающая композиция содержит один или несколько гребнеобразных полимеров.2. Смазывающая композиция по п. 1, в которой гребнеобразный полимер содержит в основной цепи по меньшей мере одно повторяющееся звено, полученное из по меньшей мере одного макромономера на основе полиолефина, и по меньшей мере одно повторяющееся звено, полученное из по меньшей мере одного низкомолекулярного мономера, выбранного из группы, состоящей из стироловых мономеров, имеющих от 8 до 17 атомов углерода, алкил(мет)акрилатов, имеющих от 1 до 10 атомов углерода в спиртовой группе, сложных виниловых эфиров, имеющих от 1 до 11 атомов углерода в ацильной группе, простых виниловых эфиров, имеющих от 1 до 10 атомов углерода в спиртовой группе, (ди)алкилфумаратов, имеющих от 1 до 10 атомов углерода в спиртовой ...

ПОДАВАЕМАЯ СМАЗКА ДЛЯ СТЕРЖНЕВОГО СВАРОЧНОГО ЭЛЕКТРОДА, СТЕРЖНЕВОЙ СВАРОЧНЫЙ ЭЛЕКТРОД И СПОСОБ ДУГОВОЙ СВАРКИ

... 1. Подаваемая смазка для применения на сварочном электроде, содержащая 10-40 масс.% по меньшей мере одной смазки на основе мыла, 40-90 масс.% по меньшей мере одной смазки в виде твердых частиц, выбранной из MoS, WS, ZnO, графита и PTFE (политетрафторэтилен).2. Смазка по п.1, которая преимущественно не содержит органических связующих.3. Смазка по п.1 или 2, которая содержит 10-40 масс.% по меньшей мере одной Na- или Са-содержащей смазки на основе мыла и 60-90 масс.% по меньшей мере одной смазки в виде твердых частиц.4. Смазка по п.3, в которой концентрацию смазки на основе мыла и концентрацию смазки в виде твердых частиц выбирают таким образом, чтобы усилие подачи смазки составляло не более 22 фунтов (порядка 98 Ньютон) на сварочном электроде диаметром 1/16 дюйма (1,59 мм), а количество образующегося Нсоставляло менее 4 мл на 100 грамм наплавленного шва металла при измерении согласно стандарту ANSI/A WS А4.3.5. Смазка по п.3, в которой смазкой в виде твердых частиц является по меньшей мере ...

СМАЗОЧНАЯ КОМПОЗИЦИЯ

ПРИСАДКИ И ДОБАВКИ К НЕФТЕПРОДУКТАМ

Составы, включающие два или более сополимеров этилен/ненасыщенного эфира, отличающиеся содержанием в них эфира, улучшают низкотемпературные свойства жидких топлив.

СУДОВОЕ СМАЗЫВАЮЩЕЕ ВЕЩЕСТВО ДЛЯ ЖИДКОГО ТОПЛИВА, ИМЕЮЩЕГО НИЗКОЕ И ВЫСОКОЕ СОДЕРЖАНИЕ СЕРЫ

... 1. Цилиндровое смазочное масло, имеющее значение щелочного числа, (BN), определенное согласно стандарту Американского общества испытания материалов ASTM D-2896, большее или равное 40 мг поташа на грамм смазочного масла, содержащее базовый компонент смазочного масла для судовых двигателей и, по меньшей мере, один детергент с повышенной щелочностью на основе щелочных металлов или щелочноземельных металлов, отличающееся тем, что оно также содержит ! в количестве от 0,01 до 10 мас.% относительно общей массы смазочного масла одно или более соединений (А), выбранных из первичных, вторичных или третичных моноспиртов, алкильная или алкиленовая цепочка которых является насыщенной или ненасыщенной, линейной или разветвленной и содержит, по меньшей мере, 12 атомов углерода. ! 2. Цилиндровое смазочное масло по п.1, содержащее от 0,1 до 2 мас.% соединений (А) относительно общей массы смазочного масла. ! 3. Цилиндровое смазочное масло по п.1 или 2, имеющее определенное значение BN в диапазоне от 40 до ...

ПОЛИАМИДНЫЕ КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ПОЛИАМИД 6,6 И СМЕСЬ ДЛИННОЦЕПОЧЕЧНЫХ ПОЛИАМИДОВ, ИХ ПРИМЕНЕНИЕ, А ТАКЖЕ ПОЛУЧАЕМЫЕ ИЗ НИХ ИЗДЕЛИЯ

СПОСОБ ПОЛУЧЕНИЯ СМАЗКИ НА ОСНОВЕ КОМПЛЕКСА СУЛЬФОНАТА КАЛЬЦИЯ

Металлические соединения каликсаренов, содержащие их моющие составы и их применение в составах смазочных масел

СМАЗОЧНАЯ КОМПОЗИЦИЯ

СМАЗОЧНОЕ ВЕЩЕСТВО ДЛЯ БУРОВОЙ ТЕКУЧЕЙ СРЕДЫ НА ВОДНОЙ ОСНОВЕ

СПОСОБ ИЗГОТОВЛЕНИЯ АЛЮМИНИЕВЫХ ДЕТАЛЕЙ

... 1. Способ изготовления алюминиевых деталей, в котором формируют деталь из заготовки, на поверхность которой предварительно нанесен подготовительный слой и смазочное покрытие; наносят клей на участок детали поверх подготовительного слоя и смазочного покрытия; наносят очиститель на деталь для удаления с поверхности подготовительного слоя и смазочного покрытия, за исключением участка, где нанесен клей; после чего наносят на деталь конверсионное покрытие.2. Способ по п.1, в котором подготовительный слой и смазочное покрытие наносят на рулон перед формированием заготовок.3. Способ по п.1, в котором подготовительный слой представляет собой слой гидроксида алюминия, связанный со слоем винилфосфоновой или винилфосфиновой кислоты.4. Способ по п.1, в котором смазочное покрытие представляет собой сухую смазку.5. Способ по п.4, в котором сухая смазка представляет собой смесь минерального масла и парафиновой смазки.6. Способ по п.1, в котором клей наносят на участок детали в области подогнутой кромки ...

ОМПОЗИЦИЯ КОНСИСТЕНТНОЙ СМАЗКИ

... 1. Консистентная смазка, состоящая из смеси из ! (а) от 5 до 95 мас.% базового масла на основе масел с обычной для промышленных смазочных материалов вязкостью, которая состоит из сложного эфира ароматической или алифатической ди-, три- или тетракарбоновой кислоты с одним или находящимся в смеси от С7- до С22-спиратми, из простого полифенилового эфира или простого алкилированного дифенилового эфира, из сложного эфира триметилолпропана, пентаэритрита или дипентаэритрита с алифатическими от С7- до С22-карбоновыми кислотами, из сложного эфира С18-димерной кислоты с от С7- до С22-спиртами, из сложных комплексных эфиров, как индивидуальные компоненты или в любой смеси, или выбрано из поли-α-олефинов, алкилированных нафталинов, алкилированных бензолов, полигликолей, силиконовых масел, простых перфторполиэфиров, ! (б) от 1 до 30 мас.% ионной жидкости или смеси из нескольких ионных жидкостей, которая в качестве катиона содержит катион фосфония, катион имидазолия, катион пиридиния или катион пирролидиния ...

LUBRICANT COMPOSITION FOR INTERNAL ENGINES

Schwefelung von ungesättigten Alkoholen

FORMENTRENNMITTEL FUER DRUCKGUSSVERFAHREN

Schmierfettzusammensetzung für homokinetisches Gelenk

Carbonsäureester enthaltendes Schmiermittel

Motorenöle mit hohem Dispergiervermögen

Schmiermittelzusammensetzungen

Schmieroel fuer Verbrennungskraftmaschinen

Verfahren zur Herstellung von gemischten, oelloeslichen basischen Metallsalzen organischer Sulfon- oder Carbonsaeuren

SCHMIERFETTZUSAMMENSETZUNG.

METALLKOMPLEX ENTHALTENDES SCHMIERÖLADDITIV.

VERFAHREN ZUR HERSTELLUNG VON DETERGENTIEN

Gleitharzzusammensetzung

Bereitgestellt wird eine Gleitharzzusammensetzung, die ausgezeichnete Verschleißbeständigkeit und ausgezeichnete Gleiteigenschaften, selbst unter einer Bedingung ohne Schmierung, aufweist. Die Gleitharzzusammensetzung (1) umfasst ein Fluorharz (2) und Calciumfluorid (3) und ein Fluorharzfilmbildendes Mittel (4), die in dem Fluorharz enthalten sind, wobei Partikel des Calciumfluorids, die das Fluorharzfilmbildende Mittel in Partikeloberflächen derselben eingebettet haben, in dem Fluorharz dispergiert sind. Wenn eine Gleitoberfläche der Harzzusammensetzung mit einer Oberfläche eines Gegenelements während eines Gleitvorgangs in Kontakt kommt, wird das Fluorharz einer Scherung unterworfen und Scherstücke (Abriebpulver) werden produziert und auf das Calciumfluorid übertragen, das an der Gleitoberfläche der Harzzusammensetzung freiliegt, wodurch ein übertragener Film des Fluorharzes 2 gebildet wird, der den Reibungskoeffizienten verringert.

HYDRAULISCHE FLUESSIGKEITEN.

SCHMIEROELGEMISCH.

Flammfestes Hydrauliköl

NEUE HYDRIERTE, STERNFOERMIG AUFGEBAUTE POLYMERISATE, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG ALS ZUSATZSTOFFE IN OELHALTIGEN GEMISCHEN

Schmierölzusammensetzung

A PROCESS FOR MAKING AN EXTREME PRESSURE LUBRICATING OIL ADDITIVE

HYDRAULIC FLUID

METAL WORKING USING LUBRICANTS CONTAINING BASIC ALKALI METAL SALTS

FUNKTIONELLE FLUESSIGKEITEN

LUBRICATING COMPOSITION

VERFAHREN ZUR HERSTELLUNG EINER MEHRFACH-WASSER/ÖL/WASSER-EMULSION

Verfahren zur Herstellung von Schmiermitteln

Verfahren zur Herstellung verdickter Schmieroele und Schmierfette

Verfahren zur Herstellung eines Schmieröladditivkonzentrats.

Schmierfett

Zusatzmittel zu Schmieroelen

VERDICKUNGSKOMBINATION VON OBERFLAECHENAKTIVEN MITTELN UND REAKTIONSPRODUKTE VON MIT KOHLENWASSERSTOFF SUBSTITUIERTER BERNSTEINSAEURE UND/ODER BERNSTEINSAEUREANHYDRID MIT AMINOENDGRUPPEN ENTHALTENDEN POLYOXYALKYLENEN FUER FUNKTIONELLE FLUESSIGKEITEN AUF WASSERBASIS.

Zusaetze zu Schmiermitteln

ALIPHATISCHE LANGKETTENKOHLENWASSERSTOFFAMINE ALS ZUSATZMITTEL MIT EINER OXYCARBONYLVERBINDUNGSGRUPPE.

Verfahren zur Herstellung bestaendiger Dispersionen von Phthalsaeuren in Schmieroelen

Naphthensaure Salze enthaltende Schmieroele

SCHMIERÖLZUSAMMENSETZUNGEN.

Schmiermittelzusammensetzungen, die Phenol/Phosphorodithioatborate als Mehrzweckzusätze enthalten.

ELEKTRISCHES KONTAKTFETT

Brennstoff- und Schmiermittelgemische

Schmiermittelzusaetze

Graphitfreier Hochtemperatur-Schmierstoff

Hochtemperatur-Schmierstoff für die Heißverarbeitung von Metallen, bestehend aus einem Gemisch von feinpulverigen Materialien, wobei das Gemisch wenigstens die folgenden Bestandteile enthält: (a) eine sekundäre und/oder tertiäre Calciumphosphatverbindung, ausgewählt unter Hydroxylapatit [Ca5(PO4)3OH] und Tricalciumphosphat [Ca3(PO4)2], (b) eine Fettsäure oder ein Fettsäuresalz, (c) Borsäure, ein Borsäuresalz (Borat) und/oder ein Borsäuresalz (Borat) enthaltendes Mineral und (d) kondensierte Alkaliphosphate in einer Menge von 60 bis 95 Gew.-%, und wobei die Bestandteile des Gemischs eine mittlere Korngröße von ≤ 150 μm aufweisen und der Schmierstoff keinen Zusatz von Graphit enthält.

VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG VON SEIFENSCHMIERFETTEN

Zusatzzusammensetzungen für Schmiermittel und funktionelle Flüssigkeiten

Schmiermittel

Verfahren zur Herstellung von oelloeslichen Mischpolymerisaten auf Basis von Acrylsaeureestern

HYDRAULIKFLUESSIGKEITEN AUF WASSERBASIS

Verwendung von Schmierstoffen auf der Basis von wasserlöslichen, hochviskosen Polyglykolen

Die vorliegende Erfindung betrifft die Verwendung von Schmierstoffen auf der Basis von wasserlöslichen, hochviskosen Polyglykolen zur Schmierung von offenen Getrieben, die beispielsweise in Drehrohröfen und Mühlen verwendet werden.

Verfahren zur Herstellung neutraler, fester Wachs- und Harzkolloide

Verfahren zur Herstellung einer bestaendigen, insbesondere fuer Schmier- oder Isolierzwecke bestimmten, organischen Poly-silicium-Oxyd-Verbindung

METALLBEARBEITUNGSOEL-ZUSAMMENSETZUNG

LUBRICANT ADDITIVE

KURBELGEHÄUSESCHMIERMITTEL MIT NIEDRIGEM CHLORGEHALT UND MIT NIEDRIGEM ASCHEGEHALT

Use of water insol. di:alkyl ether(s) of poly:hydric alcohol(s)

Use of at least substantially water insol. dialkyl ethers of natural or synthetic mono- and/or polyhydric alcohols, the ethers being liquid at working temps., as the oil phase in agents for treating metal surfaces and in cooling lubricants is claimed. Also claimed is an agent comprising (a) the above ethers; (b) corrosion inhibitors, and (c) emulsifiers.Carboxylic acids of formula R1-COOH (I) are used as corrosion inhibitors. In (I), R1 = aliphatic, opt. branched 5-23C hydrocarbyl and 0 or 1-5 double bonds, or R2-Ph-COCH=CH (where R2 = opt. branched 8-18C alkyl, and Ph = phenyl).

Schmiermittel-Zusaetze

Schmieroel

Schmierfette

Verfahren zur Herstellung von Dispersionen von Erdalkalicarbonaten in OEl

Klares,filtrierbares,fluessiges Schmiermittel mit Calciumacetatzusatz

Verwendung von kolloidalen Metallcarbonatdispersionen als Zusaetze zu Schmieroelen,Brennstoffoelen oder Treibstoffen

VERBESSERN DER FAERBEEIGENSCHAFTEN UND VERMEIDEN DER VERFAERBUNG POLYMERER ORGANISCHER STOFFE

VERFAHREN ZUR HERSTELLUNG EINES SCHMIEROELADDITIVS

Verfahren zur Herstellung eines Komplexschmierfettes

Verfahren zur Verbesserung der Abdichtwirkung von Radialdichtringen gegen Schmierstoffe,die Zusaetze enthalten

Schmiermittel für Gleichlaufgelenke

Ein Schmiermittel für Gleichlaufgelenke umfasst die folgenden Komponenten: (a) ein Grundöl; (b) ein Diharnstoff-Verdickungsmittel; (c) sulfurisiertes, molybdänhaltiges Dialkyldithiocarbamat; (d) Molybdändisulfid; (e) wenigstens ein schwefel-/ phosphorhaltiges Hochdruckmittel, ausgewählt aus Zinkdithiophosphatverbindungen und Thiophosphaten; und (f) ein Fettsäureamid. Das erfindungsgemäße Schmiermittel besitzt eine große Fähigkeit zur Verminderung der induzierten Schubkraft und ist ausgezeichnet haltbar.

Titan-enthaltende Schmierölzusammensetzung

Vollständig formulierte Schmierölzusammensetzung, umfassend mindestens ein Succinimid-Dispergiermittel, abgeleitet von einer Polyalkylenverbindung mit mehr als 45 % Vinyliden-Doppelbindungen in der Verbindung, ein metallhaltiges Detergenz, mindestens ein Verschleißverringerungsmittel, mindestens ein Antioxidationsmittel und eine kohlenwasserstofflösliche Titanverbindung als ein Reibungsmodifizierungsmittel, wobei die Schmierölzusammensetzung frei von Molybdänverbindungen ist und 0,7 Gew.-% Schwefel oder weniger und bis 0,12 Gew.-% Phosphor oder weniger enthält.

Fett zum Abdichten eines Lagers für Kraftfahrzeuge

Fett zum Abdichten eines Lagers, das in einer von einem Kraftfahrzeugmotor angetriebenen Vorrichtung verwendet wird, und das ein Grundöl, das ein synthetisches Kohlenwasserstofföl und ein oder mehrere Esteröle in einem Gewichtsverhältnis von 0,1 bis 0,49:0,9 bis 0,51 enthält, 5 bis 30 Gew.-% eines Verdickungsmittels auf Harnstoffbasis, und 0,1 bis 10 Gew.-% Dithiozinkphosphat, bezogen auf die Gesamtmenge des Fetts, umfasst, wobei das Harnstoff-Verdickungsmittel eine alicyclische Harnstoffverbindung ist, welche die Formelhat, worin R6 eine trivalente Gruppe ist, die einen aromatischen Kohlenwasserstoff enthält, R7 eine alicyclische Kohlenwasserstoffgruppe mit 6 bis 12 Kohlenstoffatomen ist und n den Wert 2 hat.

SCHMIERMITTEL

Grease composition and mechanical part

The invention provides a grease composition containing a base oil, a thickener and an additive, characterized in that the base oil has a kinetic viscosity at 40° C. of 50 to 200 mm 2 /s; the thickener contains a diurea compound represented by formula (I): R 1 —NHCONH—R 2 —NHCONH—R 3 (wherein R 2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R 1 and R 3 , which may be the same or different, represent cyclohexyl group or a straight-chain or branched alkyl group having 8 to 22 carbon atoms); and the additive is at least one selected from the group consisting of a metal salt of naphthenic acid, a salt of a fatty acid having 6 to 10 carbon atoms and an aliphatic amine having 6 to 10 carbon atoms, and a metal salt of an organic sulfonic acid. The composition of the invention shows excellent anti-fretting properties under the conditions of ordinary temperature to low temperature (e.g., −50° C., preferably about −40° C.).

Compositions with Fast and Slow Release Components

The present invention relates to controlled release compositions that include: (a) a slow release component, comprising one or more performance additives in the form of a solid or semi-solid mass; and (b) a fast release component comprising (i) a matrix material and (ii) one or more additives that can be dissolved and/or dispersed into the matrix material as well as additive delivery systems and processes using such compositions, and which release one or more additives into a fluid.

Friction and Wear Modifiers Using Solvent Partitioning of Hydrophilic Surface-Interactive Chemicals Contained in Boundary Layer-Targeted Emulsions

A wear and/or friction reducing additive for a lubricating fluid in which the additive is a combination of a moderately hydrophilic single-phase compound and an anti-wear and/or anti-friction aqueous salt solution. The aqueous salt solution produces a coating on boundary layer surfaces. The lubricating fluid can be an emulsion-free hydrophobic oil, hydraulic fluid, antifreeze, or water. Preferably, the moderately hydrophilic single-phase compound is sulfonated castor oil and the aqueous salt solution additionally contains boric acid and zinc oxide. The emulsions produced by the aqueous salt solutions, the moderately hydrophilic single-phase compounds, or the combination thereof provide targeted boundary layer organizers that significantly enhance the anti-wear and/or anti-friction properties of the base lubricant by decreasing wear and/or friction of sliding and/or rolling surfaces at boundary layers.

Rolling bearing

There is provided a rolling bearing which inhibits spalling of a rolling element and has a long service life even under rigorous environments. The rolling bearing comprises grease for lubricating rolling contact parts and/or sliding contact parts between a first raceway surface and a rolling elements and/or between a second raceway surface and a rolling elements, wherein the grease comprises a base oil, a thickener and an extreme pressure additive, the thickener is a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, an amount of cyclohexylamine in the total amount of the alkylphenylamine and cyclohexylamine is from 91 to 99% by mole, and a reaction temperature of the extreme pressure additive with iron is 260° C. or lower.

Anti-fretting wear coating for substrates

A method and chemical composition and material structure for improving fretting wear in substrates, particularly carbon-carbon composite (CCC). The invention relates to trilayer coatings, comprising a base of hard ZrO 2 , a middle layer of Al 2 O 3 , and atop layer of lubricious ZnO. The coatings of the present invention exhibit conformality and pore-filling down to approximately 100 microns into a carbon-carbon composite to which they are applied. The methods for preparing the coatings include a chemical vapor infiltration route, such as an atomic layer deposition (ALD) process, to uniformly and conformally coat the porous and open structure of CCC with a solid lubricant trilayer of ZnO/Al 2 O 3 /ZrO 2 that results in significant improvement (65%) in fretting wear.

Glycerol-containing functional fluid

A functional fluid comprising a major amount of an oil of lubricating viscosity, and at least about 0.05 wt-% glycerol. A method of preparing a functional fluid comprising adding glycerol to a functional fluid, wherein the glycerol is not glycerol monooleate. A method of preparing an additive concentrate comprising adding glycerol to a diluent oil wherein the concentrate contains from about 1% to about 99% by weight of said diluent. A method of reducing wear comprising contacting a metal surface with a functional fluid comprising a major amount of an oil of lubricating viscosity and at least about 0.05 wt-% glycerol.

Pipe end correction method of seamless pipe made of high cr stainless steel

The pipe end correction method for correcting an inner diameter of pipe end of a seamless pipe made of a high Cr stainless steel containing 8 to 35 mass % Cr, and 0.1 to 10 mass % Ni includes a pipe end correction step following hot tube-making and heat treatment, that forces a plug into the inside of pipe end portion for inner diameter correction so as to expand the pipe end portion while oxide scale, which is generated during tube-making or heat treatment, remains accumulated on an inner surface of the pipe end portion. A lubricant film forming step, prior to the pipe end correction step, applies lubricant at least either on the inner surface of the pipe end portion of the seamless pipe or on a surface of the plug. Seizure flaws can be prevented on the inner surface of the pipe end portion of the high Cr stainless steel.

Lubricating oil composition

A lubricating oil composition which exceeds the fuel saving performance of a conventional low viscosity lubricating oil composition, contains (A) a lubricating base oil having a % C A of 2 or less, adjusted to a 100° C. kinematic viscosity of 1.5 to 4.5 mm 2 /s and (B) a viscosity index improver including (B1) a poly(meth)acrylate having a weight-average molecular weight of 50,000 or less in an amount of 1 to 10 percent by mass and (B2) a poly(meth)acrylate having a weight-average molecular weight of 100,000 to 250,000 in an amount of 0.1 to 5 percent by mass of the total composition. The composition has a 80° C. high-shear viscosity (Vs: mPa·s) and a 80° C. kinematic viscosity (Vk: mm 2 /s) ratio (Vs/Vk) of less than 1, a coefficient of traction of 0.02 or less at 40° C., an average speed of 3.0 m/s, a slip ratio of 10%, and a contact pressure of 0.4 GPa.

Calcium neutral and overbased mannich and anhydride adducts as detergents for engine oil lubricants

A sulfur-free metal or ammonium salt compound, a method of making the compound, and a lubricant additive concentrate, and lubricant composition containing the compound. The compound is made by reacting a phenolic compound reacted with an aldehyde and an amine, with a compound selected from the group consisting of an acylating agent and an electrophilic compound.

Additive Package for Marine Engine Lubrication

An additive package for a two- or four-stroke marine engine lubricant comprises an oil of lubricating viscosity, a salicylate detergent and a sulfonate detergent in a ratio of 90/10 to 10/90 (expressed as mmol of soap), and 1 to 10 mass % of a hydrocarbylphenol-aldehyde condensate. 1. An additive package for a two-stroke or four-stroke marine engine lubricating oil composition , comprising an oil of lubricating viscosity in a minor amount; a major amount of (A) an overbased metal hydroxybenzoate detergent additive and (B) an overbased metal sulfonate detergent additive; and (C) an oil-soluble hydrocarbylphenol-aldehyde condensate additive in an amount in the range of 1 to 10 mass %; wherein the ratio of (A) to (B) , expressed as mmol of soap , is in the range of 90:10 to 10:90.2. A two-stroke or four-stroke marine engine lubricating oil composition comprising an oil of lubricating viscosity in a major amount claim 1 , blended with a minor amount of the additive package claimed in ; wherein the composition claim 1 , when a two-stroke engine composition claim 1 , has a TBN of 10 to 120 mg KOH/g claim 1 , as measured using ASTM D2896; and claim 1 , when a four-stroke engine composition claim 1 , has a TBN of 25 to 60 mg KOH/g claim 1 , as measured using ASTM D2896.3. The additive package of claim 1 , where (A) is an overbased calcium salicylate detergent.4. The composition of claim 2 , where (A) is an overbased calcium salicylate detergent.5. The additive package of claims 1 , where (B) is an overbased calcium sulfonate detergent.6. The composition of claim 2 , where (B) is an overbased calcium sulfonate detergent.7. The additive package of claim 1 , where (C) is a methylene-bridged alkylphenol claim 1 , the hydroxyl groups of which are either capped or uncapped.8. The composition of claim 2 , where (C) is a methylene-bridged alkyiphenol claim 2 , the hydroxyl groups of which are either capped or uncapped.9. The composition of in the form of a marine diesel cylinder ...

LUBRICANT COMPOSITIONS FOR HIGH EFFICIENCY ENGINES

The instant disclosure is directed to a method of lubricating a sump-lubricated, high efficiency, gasoline-fueled internal combustion engine. Said method involves supplying to the engine a lubricating composition comprising an oil of lubricating viscosity, an anti-wear agent, an ashless antioxidant, a metal-containing detergent, an ashless polyolefin dispersant, and (f) a polymeric viscosity modifier. The disclosure further provides a method of operating a high efficiency sump-lubricated gasoline-fueled internal combustion engine while maintaining or improving at least one of durability, deposit control, oxidation control, fuel economy, and resistance to knock and stochastic pre-ignition. 1. A method of lubricating an internal combustion engine , comprising supplying to a sump-lubricated , high efficiency , gasoline-fueled internal combustion engine a lubricating composition comprising (a) an oil of lubricating viscosity , (b) an anti-wear agent in an amount 0.15 weight percent to 6 weight percent of the composition , (c) an ashless antioxidant in an amount 1.2 weight to 7 weight percent of the composition , and (d) a metal-containing detergent in an amount to deliver 0.2 weight percent sulfated ash up to 1.5 weight percent sulfated ash to the composition , (e) an ashless polyolefin dispersant in an amount 0.8 weight percent to 8 weight percent of the composition , and (f) a polymeric viscosity modifier , dispersant viscosity modifier , or mixtures thereof in an amount 0.1 weight percent to 4.5 weight percent of the composition.2. The method of claim 1 , wherein the internal combustion engine is operated at an effective compression ratio of at least 15:1.3. The method of claim 1 , wherein the internal combustion engine is operated under a load with a brake mean effective pressure (BMEP) of greater than or equal to 18 bars.4. The method of claim 1 , wherein the gasoline has an octane rating of at least 95 by the (R+M)/2 method.5. The method of claim 1 , wherein the ...

Lubricating engine oil compositions containing detergent compounds

The present disclosure generally relates to a lubricating oil composition comprising an oil of lubricating viscosity, and an alkylhydroxybenzoate detergent compound.

Engine oil composition

An engine oil composition includes a star polymer (A) and a poly(alkyl (meth)acrylate) (B) as a viscosity index improver, and has a viscosity index of 185 to 230, the star polymer (A) having a star structure and having a weight average molecular weight of 100,000 to 1,000,000, the star structure being a structure in which polymer chains branch from a center of the polymer, the polymer chains being obtained by copolymerization and hydrogenation of an aromatic vinyl compound monomer and a conjugated diene monomer, the poly(alkyl (meth)acrylate) (B) having a weight average molecular weight of 200,000 to 600,000, the content (M A ) of the star polymer (A) in the engine oil composition being 0.10 to 2.00 mass % based on the total mass of the engine oil composition, the content (M B ) of the poly(alkyl (meth)acrylate) (B) in the engine oil composition being 0.50 to 6.00 mass % based on the total mass of the engine oil composition, and the ratio “M A /M B ” being 0.10 to 1.00. The engine oil composition can significantly improve fuel efficiency, and is suitably used for a diesel engine.

Lubricating composition for a marine engine

The present invention relates to a lubricant composition for a marine engine, in particular for a four-stroke or two-stroke marine engine, comprising at least one base oil, at least one alkoxylated fatty amine, at least one hydrogenated styrene-isoprene copolymer and at least one detergent.

Synergistic Lubricating Oil Composition Containing Mixture of Antioxidants

Disclosed is a lubricating oil composition comprising an oil of lubricating viscosity and an oil soluble synergistic mixture of antioxidants, said mixture comprising: a) a hindered amine antioxidant according to formula (I) wherein each R 1 is independently selected from a substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; R 2 is selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; each R 3 is independently selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; each R 4 is independently selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; n is an integer from 1 to 4; and m is an integer from 1 to 5; and b) a molybdenum succinimide complex.

Antioxidants and Methods to Maximize Performance

A method of preventing or reducing the level of degradation of an organic substrate is described, wherein a composition is formed that includes the organic substrate together with an effective amount of a sacrificial base and a diarylamine antioxidant.

Lubricating oil composition for internal combustion engine

Provided is a lubricating oil composition for internal combustion engine, which further reduces the friction to exhibit excellent fuel efficiency performance. A lubricating oil composition for internal combustion engine, which contains (A) a lubricant base oil having a dynamic viscosity of 2.0 to mm 2 /s at 100° C., (B) a molybdenum-based friction modifier in an amount of 0.005 to 0.2% by mass, in terms of a molybdenum content, based on the mass of the composition, (C) a salicylate-based metal detergent in an amount of 0.01 to 1% by mass, in terms of a metal content, based on the mass of the composition, and (D) at least one compound selected from amino acids having an alkyl group, alkenyl group, or acyl group having 15 to 24 carbon atoms and/or derivatives thereof in an amount of 0.01 to 10% by mass.

Estolide Compositions Exhibiting Superior High-Performance Properties

Compounds and compositions, including engine oils and lubricant formulations comprising at least one estolide compound. Exemplary compositions comprise an estolide base oil and an additive package.

FRICTION CONTROL COMPOSITION WITH HIGH AND POSITIVE FRICTION CHARACTERISTICS

A friction control composition having high and positive frictional properties for sliding steel surfaces includes a water insoluble hydrocarbon that enables a reduced water content, a rheological additive, a freezing point depressant, a friction modifier, and a lubricant. 1. A thixotropic gel or liquid for friction control comprising a friction modifier , water , clay and a water-insoluble component , wherein the clay has receptor sites for the water insoluble component and the water-insoluble component is bound to the clay at the receptor sites and further wherein the clay expands in water to form the thixotropic gel or liquid.2. The thixotropic gel or liquid of claim 1 , wherein the thixotropic gel or liquid further comprises carbon black.3. The thixotropic gel or liquid of claim 2 , wherein the amount of carbon black in thixotropic gel or liquid is from 0.5 to 5 percent.4. The thixotropic gel or liquid of claim 1 , wherein the thixotropic gel or liquid further comprises a lubricant.5. The thixotropic gel or liquid of claim 1 , wherein the amount of friction modifier in the thixotropic gel or liquid is between from about 9 to about 24 w/w %.6. The thixotropic gel or liquid of claim 1 , wherein the amount of water in the thixotropic gel or liquid is between from 4 to 25 w/w %.7. The thixotropic gel or liquid of claim 1 , wherein the thixotropic gel or liquid contains a magnesium silicate.8. The thixotropic gel or liquid of claim 1 , wherein the thixotropic gel or liquid further contains an aprotic solvent.9. The thixotropic gel or liquid of claim 1 , wherein the thixotropic gel or liquid does not contain a skin forming retentivity agent.10. A thixotropic gel or liquid for friction control comprising a friction modifier claim 1 , water and a matrix of clay and a water-insoluble component claim 1 , wherein the clay has receptor sites for the water insoluble component and the rheology agent expands in water to form the thixotropic gel or liquid.11. The thixotropic gel ...

Solid lubricant and method of making the same

A solid-state lubricant composition is disclosed. The solid-lubricant contains graphene, an oxide of a metal, and one or more polymeric binders. A method of making a solid-state lubricant coating on various substrates is disclosed. The method includes the steps of making a homogeneous slurry comprising powder of an oxide of a metal, graphene, and a polymeric binder with organic volatile solvent; coating a substrate with the homogeneous slurry with desired thicknesses; and drying the slurry on the substrate naturally or applying additional heat, resulting in a solid lubricant coating on the substrate. Substrates with coated solid composite lubricant show wear reduction and lower coefficient of friction compared with uncoated substrates.

Method Of Lubricating An Internal Combustion Engine

The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, 0.1 wt % to 4 wt % of a borated polyisobutylene succinimide dispersant, wherein the polyisobutylene from which the borated polyisobutylene succinimide is derived has a number average molecular weight of 550 to 1150, and 0.1 wt % to 6 wt % of a polyisobutylene succinimide, wherein the polyisobutylene from which polyisobutylene succinimide is derived has a number average molecular weight of 1550 to 2500, 0 wt % to 0.2 wt % of a phenolic based detergent, wherein the total amount of soap delivered by the alkaline earth metal sulphonates (typically calcium sulphonate) is 0.4 to 1 wt % of the lubricating composition, and wherein the lubricating composition has a sulphated ash content of not more than 1.5 wt %.

Mineral-Oil-Free Lubricant And Method For Producing A Mineral-Oil-Free Lubricant

A method for producing a lubricant in producing an overbased calcium sulfonate, which is converted from the vaterite form into the calcite form and, finally, a calcium sulfonate grease is produced by heating the mixture. A lubricant may comprise at least one ester composition, calcium carbonate and at least one overbased alkylbenzene sulfonate. The basicity of the mixture is limited during the preparation of the overbased calcium sulfonate to a TBN of at most 550 mg KOH/g and during the conversion of the calcium sulfonate to a TBN of at most 450 mg KOH/g. Both the calcium sulfonate and the grease containing said calcium sulfonate may be produced exclusively on an ester basis, so that the end product does not contain any mineral oil and is therefore easily and completely biodegradable. 1. A method for producing a lubricant which comprises the following steps:{'claim-text': ['dissolving at least one mono-, di- or tri-alkylbenzene sulfonic acid, wherein at least one alkyl group is a (C3-C30)-alkyl group, in at least one ester composition, wherein the ester composition comprises at least one ester;', 'admixing calcium hydroxide and calcium oxide;', 'heating the mixture to a temperature in the range from 30° C. to 90° C. and introducing carbon dioxide into the mixture, wherein the mixture is adjusted to a base number (TBN) of at most 550 mg KOH/g;'], '#text': 'a) preparing an overbased calcium sulfonate by performing:'}{'claim-text': ['adjusting the mixture to a water content in the range of 2% by wt. to 20% by wt.;', 'heating the mixture to a temperature in the range of 80° C. to 105° C., wherein the mixture is adjusted to a base number of no more than 450 mg KOH/g; and'], '#text': 'b) converting the overbased calcium sulfonate from the vaterite form into the calcite form which comprises the following steps:'}c) producing a calcium sulfonate grease by heating the mixture to a temperature in the range of 90° C. to 200° C.2. The method according to claim 1 , wherein at ...

Lubricants with Good TBN Retention

A lubricant composition containing a metal-containing detergent in an amount to provide at least about 2 TBN to the lubricant, and a dispersant comprising an oleophilic portion comprising at least about 40 carbon atoms and an acid-bearing portion, characterized in having a TAN:TBN ratio of at least about 0.8, exhibits good TBN retention.

LUBRICATING OIL COMPOSITION

Provided is a lubricating oil composition for use in internal-combustion engines, containing a base oil (A), an ashless dispersant (B) containing a non-boronated alkenylsuccinic acid imide (B1) and a boronated alkenylsuccinic acid imide (B2), a thiadiazole compound (C), and an aromatic carboxylate (D) having one or more hydroxy groups, wherein the content of the component (C) is 0.2 to 1.2% by mass based on the total amount of the lubricating oil composition, the content of a zinc dithiophosphate is, as calculated in terms of zinc atoms, less than 500 ppm by mass based on the total amount of the lubricating oil composition, and the content of a metal-based detergent is, as calculated in terms of metal atoms, less than 600 ppm by mass based on the total amount of the lubricating oil composition. 1. A lubricating oil composition for use in internal-combustion engines , comprising:a base oil (A),an ashless dispersant (B) containing a non-boronated alkenylsuccinic acid imide (B1) and a boronated alkenylsuccinic acid imide (B2),a thiadiazole compound (C), andan aromatic carboxylate (D) having one or more hydroxy groups, wherein:the content of the component (C) is 0.2 to 1.2% by mass based on the total amount of the lubricating oil composition,the content of a zinc dithiophosphate is, as calculated in terms of zinc atoms, less than 500 ppm by mass based on the total amount of the lubricating oil composition, andthe content of a metal-based detergent is, as calculated in terms of metal atoms, less than 600 ppm by mass based on the total amount of the lubricating oil composition.2. The lubricating oil composition according to claim 1 , wherein the content ratio of the component (D) to the component (B2) [(D)/(B2)] is claim 1 , as a ratio by mass claim 1 , 0.1 to 5.0.3. The lubricating oil composition according to claim 1 , wherein the content of the component (D) is claim 1 , based on the total amount of the lubricating oil composition claim 1 , 0.5 to 15.0% by mass.5. The ...

Wear resistant lubricious composite

A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

A lubricating oil composition for an internal combustion engine has a HTHS viscosity at 150° C. of 2.55-2.84 mPa·s and includes: (A) a lubricating base oil including (a) mineral base oil(s) and/or (a) synthetic base oil(s), and having a kinematic viscosity at 100° C. of 3.8-4.6 mm/s; (B) 1000-2000 mass ppm, in terms of metal content, of a metallic detergent including (a) metal salicylate detergent(s), and delivering 10 mmol/kg of total salicylate soap base per kilogram of the composition; (C) 1.0 to 4.0 mass % of a comb-shaped poly(meth)acrylate having a Mw of 350,000-1,000,000 and a PDI of ≤4.0; and (D) 100-1000 mass ppm, in terms of nitrogen, of a succinimide dispersant including (i) (a) non-modified succinimide dispersant(s) and/or (ii) (a) boric acid-modified succinimide dispersant(s), wherein the (i) and the (ii), in total, deliver 70 mass % of total nitrogen content of the component (D). 1. A lubricating oil composition for an internal combustion engine , the composition comprising:{'sup': '2', '(A) a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, and having a kinematic viscosity at 100° C. of 3.8 to 4.6 mm/s;'}(B) a metallic detergent comprising at least one metal salicylate detergent, wherein the component (B) is present in an amount of 1000 to 2000 mass ppm in terms of metal content on the basis of the total mass of the composition, and wherein the component (B) is present in an amount of no less than 10 mmol/kg in terms of total molar amount of any salicylate soap base per kilogram of the composition;(C) at least one comb-shaped poly(meth)acrylate in an amount of 1.0 to 4.0 mass % in terms of resin content on the basis of the total mass of the composition, the comb-shaped poly(meth)acrylate having a weight average molecular weight of 350,000 to 1,000,000 and a polydispersity index of no more than 4.0; and(D) a succinimide dispersant in an amount of 100 to 1000 mass ppm in terms ...

Lubricating oil composition for two wheeled vehicle, method for improving fuel economy of two wheeled vehicle using the lubricating oil composition, and method for producing the lubricating oil composition

The present invention provides a lubricating oil composition for two-wheeled vehicles, which is able to not only suppress a lowering of fatigue life of engine parts while making fuel saving properties (in particular, fuel saving properties at the time of low speed) favorable but also make clutch friction characteristics of two-wheeled vehicles favorable. The present invention is concerned with a lubricating oil composition for two-wheeled vehicles, including a base oil (A) having a viscosity index of 120 or more, an ethylene-propylene copolymer (B), and a metal-based detergent (C), wherein the content of the ethylene-propylene copolymer (B) is 0.30% by mass or more on the basis of the whole amount of the lubricating oil composition; the metal-based detergent (C) contains a calcium phenate (C1) and a calcium sulfonate (C2), and a mass ratio of the content (Ca 1 ) of the calcium phenate (C1) as expressed in terms of a calcium atom to the content (Ca 2 ) of the calcium sulfonate (C2) as expressed in terms of a calcium atom is satisfied with a relation of (1.0≤Ca 1 /Ca 2 ); and the lubricating oil composition has a kinematic viscosity at 100° C. is less than 9.3 mm 2 /s and an HTHS viscosity at 150° C. is 2.9 mPa·s or more.

Viscosity index improver, lubricant oil additive, and lubricant oil composition

A viscosity index improver of the present invention contains a star polymer obtained by a reaction of divinylbenzene with alkyl methacrylate containing stearyl methacrylate, the star polymer having a core part and an arm part, wherein the core part is derived from the divinylbenzene and the arm part is a polymer chain of the alkyl methacrylate. A lubricant oil additive and a lubricant oil composition of the present invention contain the above viscosity index improver.

Lubricant composition having improved high-temperature durability

The present disclosure relates to a lubricant composition including a base oil, a thickener and a thickener supplement, and a method of manufacturing the same. The lubricant composition of the present disclosure is effective at improving performance at high-temperature by maintaining the evaporation amount and friction characteristics even at high temperatures, thus inhibiting oil contamination of powertrain parts and the like and maintaining sticking phenomenon even in a high-temperature environment, thereby increasing the durability of parts.

Lubricating oil composition, and sliding mechanism using lubricating oil composition

Disclosed is a lubricating oil composition for low-friction sliding materials, which is used in a sliding mechanism where a DLC film containing hydrogen in an amount of from 5 atom % to 50 atom % is formed on at least one sliding surface. The lubricating oil composition contains, in the lubricant base oil therein and based on the total amount of the composition, (A) an organic zinc dithiophosphate in an amount of from 0.005% by mass to 0.12% by mass in terms of the phosphorus concentration therein, (B) an amine-based friction-reducing agent in an amount of from 0.05% by mass to 5.0% by mass, and (C) an alkaline earth metal salicylate-based detergent and/or an alkaline earth metal sulfonate-based detergent in an amount of from 0.05% by mass to 0.5% by mass in terms of the alkaline earth metal concentration therein, wherein the component (A) contains, based on the total amount of the composition, a zinc primary dialkyldithiophosphate in an amount of from 0.005% by mass to 0.05% by mass in terms of the phosphorus concentration therein.

Low Ash Lubricant and Fuel Additive Comprising Alkoxylated Amine

A lubricating oil detergent composition comprises an overbased calcium sulfonate and a low ash detergent, which low ash detergent is metal free and comprises the reaction product of an acidic organic compound such as an alkylated salicylic acid, a boron compound and an amine component.

Biodegradable lubricating oil composition

[PROBLEMS] To provide a biodegradable lubricating oil composition which has excellent biodegradability, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of iron and non-ferrous metals, and suitability for use with sealing materials. [MEANS FOR SOLVING THE PROBLEMS] A biodegradable lubricating oil composition comprising (A) a synthetic ester base oil comprising at least 50 mass % hindered ester of an aliphatic monocarboxylic acid with an aliphatic hindered polyol which has one or more quaternary carbon atoms per molecule and in which at least one of the quaternary carbon atoms has one to four methylol groups bonded thereto and (B) ingredients which are (a) 0.1 to 5.0 mass % phenolic antioxidant, (b) 0.01 to 2.0 mass % calcium sulfonate having a low base number, and (c) 0.01 to 1.0 mass % triazole compound, and has the degree of biodegradation of 60% or higher when examined by the test for the degree of microbial degradation of chemical substances according to the OECD Test Guideline 301C method.

Lubricant Composition Containing an Antiwear Agent

The invention provides a lubricant composition comprising an oil of lubricating viscosity and a protic acid salt of an N-hydrocarbyl-substituted gamma-(γ-) or delta-amino(thio)ester. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

A lubricating oil composition for an internal combustion engine, the composition including: a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, the lubricating base oil having a kinematic viscosity at 100° C. of 4.0 to 4.5 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %; (A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition; (B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium on the basis of the total mass of the composition; and optionally (C) a viscosity index improver in an amount of less than 1 mass % on the basis of the total mass of the composition. 1. A lubricating oil composition for an internal combustion engine , the composition comprising:{'sup': '2', 'a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, the lubricating base oil having a kinematic viscosity at 100° C. of 4.0 to 4.5 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %;'}(A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition;(B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium on the basis of the total mass of the composition; andoptionally (C) a viscosity index improver in an amount of less than 1 mass % on the basis of the total mass of the composition.2. The lubricating oil composition according to claim 1 ,the component (C) comprising: (C1) a poly(meth)acrylate viscosity index improver in an amount of no less than 95 mass % on the basis of the total mass of the component (C), the component (C1) having a weight average molecular weight of no ...

LUBRICANT COMPOSITION FOR A SPEED REDUCER, AND SPEED REDUCER

The invention provides a lubricant composition for an eccentric oscillating planetary gear type speed reducer comprising the following components (a) to (d): (a) a base oil containing a synthetic oil; (b) at least one calcium salt selected from the group consisting of calcium salts of petroleum sulfonic acids, calcium salts of alkyl aromatic sulfonic acids, calcium salts of salicylates, calcium salts of phenates, calcium salts of oxidized waxes, overbased calcium salts of petroleum sulfonic acids, overbased calcium salts of alkyl aromatic sulfonic acids, overbased calcium salts of salicylates, overbased calcium salts of phenates, and overbased calcium salts of oxidized waxes; (c) an antioxidant; and (d) a glycerin fatty acid ester. 1. A lubricant composition for an eccentric oscillating planetary gear type speed reducer , comprising the following components (a) to (d):(a) a base oil containing a synthetic oil;(b) at least one calcium salt selected from the group consisting of calcium salts of petroleum sulfonic acids, calcium salts of alkyl aromatic sulfonic acids, calcium salts of salicylates, calcium salts of phenates, calcium salts of oxidized waxes, overbased calcium salts of petroleum sulfonic acids, overbased calcium salts of alkyl aromatic sulfonic acids, overbased calcium salts of salicylates, overbased calcium salts of phenates, and overbased calcium salts of oxidized waxes;(c) an antioxidant; and(d) a glycerin fatty acid ester.2. The lubricant composition for a speed reducer according to claim 1 , wherein a content of the (b) calcium salt is 0.05 to 5% by mass claim 1 , a content of the (c) antioxidant is 0.05 to 5% by mass claim 1 , and a content of the (d) glycerin fatty acid ester is 0.05 to 5% by mass based on a total mass of the lubricant composition.3. The lubricant composition for a speed reducer according to claim 1 , wherein the (b) calcium salt is selected from the group consisting of calcium salts of alkyl aromatic sulfonic acids and overbased ...

Estolide compositions exhibiting superior high-performance properties

Compounds and compositions, including engine oils and lubricant formulations comprising at least one estolide compound. Exemplary compositions comprise an estolide base oil and an additive package.

Lubricating Composition

A method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine comprising lubricating the crankcase of the engine with a composition comprising a combination of a molybdenum-containing additive and a boron-containing additive. Preferably, the composition comprises a calcium detergent providing a calcium content of at least 0.08 wt. %, based on the weight of the lubricating oil composition.

ENGINE OIL LUBRICANT COMPOSTIONS AND METHODS FOR MAKING SAME WITH STEEL CORROSION PROTECTION

Provided is a low sulfated ash engine oil lubricant composition containing organic friction modifiers with improved fuel economy and corrosion resistance. The lubricant composition includes one or more metal free corrosion inhibitors having an organic acid group and/or one or more organo metallic naphthalene molecules having a ASTM D2896 total base number less than 3 mg KOH/g. The resulting lubricant composition improves ASTM D6557 corrosion protection for low sulfated ash engine oils containing organic friction modifiers, while maintaining exceptional fuel economy performance. 1. An engine oil lubricant composition , comprising:about 40 wt % to about 90 wt % of at least one base oil;about 0.1 wt % to about 5 wt % of an organic friction modifier;about 1 wt % to about 6 wt % of at least one detergent comprising magnesium or calcium;about 0.01 wt % to about 1 wt % of a corrosion inhibitor having at least one organic acid moiety or organic salt thereof;wherein the engine oil lubricant composition has a sulfated ash content of 0.5 wt % or less, and an HTHS (ASTM D4683) of less than or equal to 3.7 cP at 150° C.2. The lubricant composition of claim 1 , wherein the composition comprises 0.1 wt % to about 1.0 wt % of an organic friction modifier.3. The lubricant composition of claim 1 , wherein the organic friction modifier is an alkyl or alkylene glyceride ester.4. The lubricant composition of claim 1 , wherein the at least one detergent comprises magnesium or calcium sulfonate or a mixture thereof.5. The lubricating engine oil of claim 1 , wherein the corrosion inhibitor having a naphthenate claim 1 , naphthalene sulfonate claim 1 , or at least one organic acid or organic salt moiety improves the ball rust test (ASTM D6557) average gray value (AGV) by at least 25%.6. The lubricating engine oil of claim 1 , wherein the corrosion inhibitor having a naphthenate claim 1 , naphthalene sulfonate claim 1 , or at least one organic acid or organic salt moiety improves the ball ...

ENGINE OILS WITH LOW TEMPERATURE PUMPABILITY

A lubricating composition including a polymer blend of a modified styrene-maleic anhydride copolymer and poly(meth)acrylate copolymer effective to maintain a pumpable fluid at low temperatures. 1. A low-temperature stable lubricating composition exhibiting pumpability comprising:a base oil of lubricating viscosity;a polymeric additive including a blend of a modified styrene-maleic anhydride copolymer and a poly(meth)acrylate copolymer effective to maintain a pumpable fluid.2. The low-temperature stable lubricating composition of claim 1 , wherein the lubricating composition further includes one or more of a succinimide dispersant claim 1 , a borated succinimide dispersant claim 1 , an overbased calcium sulfonate claim 1 , an overbased magnesium sulfonate claim 1 , a zinc dialkyldithiophosphates claim 1 , an alkylated diphenyl amine antioxidant claim 1 , an antifoamant claim 1 , or combinations thereof.3. The low-temperature stable lubricating composition of claim 1 , wherein the modified styrene-maleic anhydride copolymer is an esterified styrene-maleic anhydride copolymer.4. The low temperature stable lubricating composition of claim 3 , wherein the esterified styrene-maleic anhydride copolymer is esterified with a long chain alcohol having an alkyl chain length of 10 to 22 carbons.5. The low temperature stable lubricating composition of claim 4 , wherein the esterified styrene-maleic anhydride copolymer has a number average molecular weight of about 10 claim 4 ,000 to about 100 claim 4 ,000.6. The low-temperature stable lubricating composition of claim 1 , wherein the poly(meth)acrylate copolymer includes reactants selected from C1 to C24 linear or branched alkyl (meth)acrylate reactants.7. The low-temperature stable lubricating composition of claim 6 , wherein a number average molecular weight of the poly(meth)acrylate copolymer is about 20 claim 6 ,000 or more.8. The low-temperature stable lubricating composition of claim 1 , wherein the lubricating composition ...

Pulsed plasma lubrication device and method

Disclosed herein is a lubrication device comprising a solid lubricant disposed between and in contact with a first electrode and a second electrode dimensioned and arranged such that application of an electric potential between the first electrode and the second electrode sufficient to produce an electric arc between the first electrode and the second electrode to produce a plasma in an ambient atmosphere at an ambient pressure which vaporizes at least a portion of the solid lubricant to produce a vapor stream comprising the solid lubricant. Methods to lubricate a surface utilizing the lubrication device in-situ are also disclosed.

Grease Composition and Wheel Supporting Rolling Bearing Unit Having Grease Composition Packed Therein

There is provided a grease composition decreasing the load sensitivity to a running torque, maintaining necessary performances for a wheel supporting rolling bearing unit, and maintaining a good lubricated condition for a long time, and, a wheel supporting rolling bearing unit having the grease composition packed therein. The grease composition contains base oil, thickeners, rust inhibitors, and anti-wear agents, the base oil contains mineral oil, synthetic oil or blend oil of the mineral oil and the synthetic oil, a mix ratio (mass ratio) of the mineral oil and the synthetic oil is 0:100 to 20:80, a kinematic viscosity of the base oil at a temperature of 40° C. is 70 to 150 mm 2 /s, and a pour point of the base oil is equal to or lower than −40° C. The wheel supporting rolling bearing unit is packed with this grease composition.

Lubricant composition for internal combustion engine oil

The present invention provides a lubricating oil composition for internal combustion engines which includes a boronated imide-based dispersant, or the boronated imide-based dispersant and a non-boronated imide-based dispersant, in which a boron content (B % by mass) derived from the boronated imide-based dispersant and a nitrogen content (N % by mass) derived from the boronated imide-based dispersant or derived from the boronated imide-based dispersant and the non-boronated imide-based dispersant satisfy the following formula (I): N≧B+0.05 (I); and a phosphorus content (P % by mass) and a content of a metal component (M % by mass) derived from a metallic detergent on the basis of a total amount of the composition satisfy any of the following requirements A to C: A: P<0.03 and M<0.05; B: P<0.03 and 0.05≦M≦0.12; and C: 0.03≦P≦0.06 and M<0.05. The lubricating oil composition for internal combustion engines can be considerably reduced in content of ZnDTP having a large phosphorus content or a metallic detergent while maintaining a good wear resistance for aluminum materials.

Lubricating oil composition

Disclosed is a lubricating oil composition. The lubricating oil composition contains a lubricating base oil including mineral base oil, 4 to 15 mass % of an ester compound of a monovalent or polyvalent aliphatic carboxylic acid and a monovalent or polyvalent aliphatic alcohol, 400 to 1200 mass ppm of zinc dialkyl dithiophosphate in terms of a phosphorus element, 500 to 3000 mass ppm of a calcium-based detergent in terms of a calcium element, and 50 to 1000 mass ppm of a boron-modified succinimide-based dispersant in terms of a boron element, on the basis of the total amount of the lubricating oil composition.

Solid lubricant and sliding member having solid lubricant embedded therein

Provided are: a solid lubricant having a low friction coefficient and excellent abrasion resistance; and a sliding member having this solid lubricant embedded therein. The solid lubricant ( 4 ) has a sea-island structure, comprising: a sea phase as a continuous phase, containing a hydrocarbon-based wax and a polyethylene resin; and an island phase as a dispersion phase, containing a low-molecular weight tetrafluoroethylene resin, a higher fatty acid salt, a phosphate of basic nitrogen-containing compound, and zinc stannate. A high-molecular weight tetrafluoroethylene resin is contained in this continuous-phase sea phase in a fibrous and mesh state. The hydrocarbon-based wax content is 30-60 vol %, the polyethylene resin content is 3-10 vol %, the low-molecular weight tetrafluoroethylene resin content is 10-30% vol %, the higher fatty acid salt content is 20-40% vol %, the basic nitrogen-containing compound phosphate content is 0.5-5 vol %, the zinc stannate content is 0.5-5 vol %, and the high-molecular weight tetrafluoroethylene resin content is 1-10 vol %.

Method of pretreating aluminum assemblies for improved adhesive bonding and corrosion resistance

A system and a method for pretreating an aluminum assembly includes selecting a blank having a thin film pretreatment layer and a lubricant coating applied to a surface. The blank is formed to a desired shape and an adhesive is applied to a selected portion of the surface. A cleaner is applied to the assembly to remove the thin film pretreatment layer and the lubricant coating from the surface except at the selected portion and a zirconium oxide conversion coating is applied to the assembly before painting.

LUBRICATING OIL COMPOSITION

There is provided a lubricating oil composition which is excellent in the wear resistance and the oil film retention even when the viscosity of the composition is lowered. The lubricating oil composition comprises: a base oil (A); an imide compound (B); a calcium-based detergent (C); a polymer component (D); and a zinc dithiophosphate (E), wherein the imide compound (B) comprises at least one non-boron-modified succinic acid imide compound (Bx) selected from a succinic acid monoimide (B1x) represented by general formula (b-1) and a succinic acid bisimide (B2x) represented by general formula (b-2), and wherein the polymer compound (D) has a mass average molecular weight (Mw) of not less than 10,000 and not more than 50,000, and comprises at least one selected from an olefin polymer (D1) and a polymethacrylate (D2). 2. The lubricating oil composition to of claim 1 , wherein the imide compound further comprises at least one boron-modified succinic acid imide compound selected from the group consisting of a boron-modified product of the succinic acid monoimide and a boron-modified product of the succinic acid bisimide claim 1 , andwherein the content of boron atoms derived from the boron-modified succinic acid imide compound is not more than 0.020% by mass based on the total amount of the lubricating oil composition.3. The lubricating oil composition of claim 2 , wherein the mass ratio of the content of boron atoms derived from the boron-modified succinic acid imide compound to the content of nitrogen atoms derived from the imide compound is not more than 1.0.4. The lubricating oil composition of claim 1 , wherein the mass ratio of the content of phosphorus atoms derived from the zinc dithiophosphate to the content of nitrogen atoms derived from the imide compound is not less than 0.5 and not more than 5.0.5. The lubricating oil composition of claim 1 , wherein the content of nitrogen atoms is not less than 0.010% by mass and not more than 0.10% by mass based on the ...

Lubricating oil compositions having improved cleanliness and wear performance

A method for improving wear control, while maintaining or improving deposit control and cleanliness, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and specific combinations of low soap detergents, dispersants, and/or mixtures thereof, as a minor component. The low soap detergents include alkaline earth metal salicylates, alkaline earth metal sulfonates, or mixtures thereof, all having the same or different total base number (TBN). The total amount of soap delivered by the low soap detergent is less than 0.60 weight percent of the lubricating oil. The dispersants include borated and/or non-borated polyisobutylene succinimide (PIMA) having a basic nitrogen content of 1% or greater. The lubricating oils are useful in internal combustion engines.

Lubricant and method for manufacturing magnesium alloy tubes

A lubricant includes at least 45 wt % paraffin oil, less than 8 wt % of a pyrophosphate or triphosphate, more than 6 wt % of a group 6 disulfide or diselenide and up to 27.5 wt % of graphite. The lubricant is used in a method for producing a magnesium alloy tube via extrusion, and is especially useful to form implants such as stents while maintaining the biocompatibility of the magnesium alloy.

Lubricating Oil Additives

A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.

Lubricating oil composition for transmissions

A lubricating oil composition for transmissions is provided which improves fuel saving properties and has excellent metal fatigue life and heat resistance. The composition contains 50 to 97 percent by mass of (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm 2 /s or higher and 3.5 mm 2 /s or lower, a pour point a −25° C. or lower, a viscosity index of 105 or greater, a % C p of 85 or greater, a % C N of 2 or greater and 20 or less and a % C A of 3 or less; 3 to 10 percent by mass of (B) a monoester-hased base oil having a 100° C. kinematic viscosity of 2 mm 2 /s or higher and 10 mm 2 /s or lower; and 150 to 400 ppm by mass as phosphorus of (C) a specific sulfur-containing phosphite ester. The composition has a 100° C. kinematic viscosity of 2.5 mm 2 /s or higher and 4.0 mm 2 /s or lower.

Giant electrorheological fluid surfactant additives

GER fluids are improved by the addition of a polar molecule additive. By addition of a polar molecule additive, yield stresses under electric field are improved by over 50% while the current density is reduced to less than a quarter of the original GER. The reversible response time still remains the same, and the sedimentation stability is greatly enhanced. The zero field viscosity of the modified GER fluid remains the same as that of the original GER fluid without the additive. The improved GER characteristics improve general functionality as an electrical-mechanical interface, attendant with applications to car clutches, fluid brakes, and vehicle shock absorbers.

Valve Leak Repair Packing Material and Method of Using the Same

A non-curable injectable ester containing packing material for use in the repair of leaking valves contains a calcium sulfonate grease containing at least one polyalphaolefin, an ester, an anti-wear/anti-galling agent, a binding/thickening agent and a plasticizing agent. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. An injectable packing composition for use in the repair of a leaking valve subjected to fluid flow through or into a conduit controlled by the valve , the composition comprising:(a) a calcium sulfonate complex grease comprising at least one polyalphaolefin;(b) at least one anti-wear/anti-galling agent;(c) at least one binding/thickening agent; and(d) a plasticizing agent miscible with the calcium sultanate complex grease wherein the packing composition, when injected, repairs the valve without interrupting the flow of the fluids through or into the conduit.22. The injectable packing composition of claim 21 , further comprising at least one ester.23. The injectable packing composition of claim 22 , wherein the at least one ester is a component of the calcium sultanate complex grease.24. The injectable packing composition of claim 23 , wherein the plasticizing agent is miscible with the ester of the calcium sulfonate complex grease.25. The injectable packing composition of claim 21 , wherein the calcium sultanate complex grease comprises micellular calcium salt in combination with calcium sultanate claim 21 ,26. The injectable packing composition of claim 21 , wherein at least one of the following is true:(a) the at least one polyalphaolefin is selected from the group consisting of polyethylenes, polypropylenes, polybutenes, polypentenes, polyhexenes and polyheptenes;(b) the plasticizing agent is an isocyanate reaction product of ...

Natural oil based grease compositions and processes for making such compositions

A grease composition is disclosed, having from 50 to 99 weight percent of a lubricating base oil, from 1 to 30 weight percent of a thickener component including one or more of (i) one or more natural oil derivatives, (ii) one or more hydrogenated metathesized natural oils and/or natural oil derivatives, (iii) one or more amidated metathesized natural oils and/or natural oil derivatives, (iv) one or more, or two or more, carboxylic acids and/or derivatives thereof, and (v) one or more of a metal base compound, and from 1 to 15 weight percent of one or more optional additives. Processes for making grease compositions are also disclosed.

LUBRICATING OIL COMPOSITIONS WITH IMPROVED DEPOSIT RESISTANCE AND METHODS THEREOF

Provided is a lubricating oil composition and method of using such a composition that provides for improved high temperature deposit resistance. The composition includes a lubricating oil base stock at from 20 to 95 wt % of the composition, at least one ashless organic friction modifier at from 0.1 to 20 wt % of the composition, and at least one overbased detergent at from 0.1 to 20 wt % of the composition. The remainder of composition includes one or more other lubricating oil additives. The deposit resistance of the lubricating oil composition as measured by TEOST 33C total deposits is at least 20% lower than the deposit resistance for a comparable lubricating oil composition not including the combination of the at least one ashless organic friction modifier and the at least one overbased detergent. 2. The composition of claim 1 , wherein the lubricating oil base stock is selected from the from the group consisting of a Group I base stock claim 1 , a Group II base stock claim 1 , a Group III base stock claim 1 , a Group IV base stock claim 1 , a Group V base stock and combinations thereof.3. The composition of claim 1 , wherein the lubricating oil base stock is from 85 to 95 wt % of the lubricating oil composition.4. The composition of claim 3 , wherein the lubricating oil base stock is selected from the group consisting of a 100N Group I base stock claim 3 , a 4.5 cSt Group II base stock claim 3 , a 4 cSt gas to liquids (GTL) base stock claim 3 , a 4 cSt polyalphaolefin (PAO) base stock claim 3 , a di-isononyl phthalate ester base stock and combinations thereof.5. The composition of claim 1 , wherein the at least one overbased detergent is metal containing detergent including sulfonates claim 1 , phenates claim 1 , salicylates claim 1 , carboxylates and combinations thereof and having a Total Base Number (TBN) ranging between 60 and 600.6. The composition of claim 5 , wherein the at least one overbased detergent is selected from the group consisting of 350 TBN ...

Liquid compositions of overbased calcium carboxylate and process for its preparation

The present invention relates to light color, shelf-stable liquid compositions of overbased calcium carboxylate soaps and a process for their preparation. The inventive soaps are prepared by neutralizing calcium base in a mixture of two different aliphatic carboxylic acids and carbonating the mixture in the presence of a non-polar hydrocarbon solvent and a polar organic solvent as a promoter under controlled temperature conditions. The overbased calcium carboxylate soaps of the invention contain 20%-90% by weight of C 7 to C 25 saturated carboxylic acids, which are branched on carbon 2, and between 1% and 20% by weight short chain saturated carboxylic acids. These liquid compositions have light colors and excellent heat stability. They can be used as anticorrosion/antirust additives, and paint dryers and stabilizers, in paints, coatings and lubricants, as well as other applications.

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

A lubricating oil composition for an internal combustion engine includes: a lubricant base oil including at least one mineral base oil, at least one synthetic base oil, or any combination thereof, and having a kinematic viscosity at 100° C. of 3.0 to 4.0 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %; (A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium; (B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium; (G) a zinc dialkyl dithiophosphate in an amount of no less than 600 mass ppm in terms of phosphorus; and optionally (C) a viscosity index improver in an amount of no more than 5 mass %. 1. A lubricating oil composition for an internal combustion engine , the composition comprising:{'sup': '2', 'a lubricant base oil comprising at least one mineral base oil, at least one synthetic base oil, or any combination thereof, the lubricant base oil having a kinematic viscosity at 100° C. of 3.0 to 4.0 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %;'}(A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition;(B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium on the basis of the total mass of the composition;(G) a zinc dialkyl dithiophosphate in an amount of no less than 600 mass ppm in terms of phosphorus on the basis of the total mass of the composition; andoptionally (C) a viscosity index improver in an amount of no more than 5 mass % on the basis of the total mass of the composition.2. The lubricating oil composition according to claim 1 ,the component (C) comprising (C1) a poly(meth)acrylate viscosity index improver having a weight average molecular weight of no less than 100,000, in an amount of no less than 95 ...

Natural oil derivative based thickener components used in grease compositions and processes for making such compositions

A grease composition is disclosed, having from 50 to 99 weight percent of a lubricating base oil, from 1 to 30 weight percent of a thickener component including one or more of (i) one or more natural oil derivatives selected from the group consisting of triglycerides, diglycerides, monoglycerides, or oligomers therefrom, fatty acid methyl esters and corresponding fatty acids, salts, and dibasic esters therefrom, and C 10- C 15 esters, C 15- C 18 esters, or C + diesters, or diesters therefrom, (ii) one or more carboxylic acids and/or derivatives thereof, and (iii) one or more of a metal base compound, and from 1 to 15 weight percent of one or more optional additives. Processes for making grease compositions are also disclosed.

Lubricant composition

A lubricating oil composition, which contains a base oil, a boron-containing bisalkyl succinimide, a boron-containing bisalkenyl succinimide, or both, an amide, and a dispersed polymethacrylate. The lubricating oil composition is used for transmissions, such as Dual Clutch Transmissions.

Alkylphenol Detergents

The disclosed technology relates to hydrocarbyl- (e.g. alkyl-) phenol detergents and their salts, where the hydrocarbyl group includes moieties equivalent to 5 to 10 carbon branched polyene compounds. Such compounds and their salts are useful as lubricant additives. 1. An alkylphenol detergent composition comprising at least one phenol moiety having a hydrocarbyl group attached thereto , the hydrocarbyl group comprising at least one oligomer comprising monomers equivalent to 5 to 10 carbon atom branched olefins.2. The alkylphenol detergent composition of claim 1 , where the monomers are equivalent to 5 to 10 carbon atom branched polyenes.3. The alkylphenol detergent composition of claim 2 , where the monomers are equivalent to isoprene.4. The alkylphenol detergent composition of claim 1 , where the oligomer is a terpene.5. (canceled)6. The detergent composition of claim 1 , wherein the oligomer is equivalent to a partially or completely hydrogenated form of a terpene.7. (canceled)8. The detergent composition of claim 1 , where the hydrocarbyl unit comprises 15 to 60 carbon atoms.10. The detergent composition of claim 1 , wherein the detergent is a sulfur-bridged phenate detergent claim 1 , a sulfur-free alkylene-bridged phenate detergent claim 1 , a salicylate detergent claim 1 , or mixtures thereof.11. The detergent composition of claim 1 , where the detergent comprises one or more alkali metals claim 1 , one or more alkaline earth metals claim 1 , or mixtures thereof.12. The detergent composition of claim 1 , where the detergent is overbased.13. (canceled)14. (canceled)15. (canceled)16. The detergent composition of claim 1 , wherein the detergent is a neutral or overbased salt of alkylsalicylic acid.17. (canceled)18. A lubricating composition comprising (a) an oil of lubricating viscosity and (b) the alkylphenol detergent composition of .19. The lubricating composition of claim 18 , wherein the alkylphenol detergent is present from about 0.01 to about 2 wt % of ...

Lubricating oil composition for rolling with round die

Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2) ; (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.

Synergistic lubricating oil composition containing a mixture of olefin copolymer dispersant-type viscosity improver and amine compound

Disclosed is an internal combustion engine lubricating oil composition which comprises (a) a major amount of an oil of lubricating viscosity; (b) a dispersant-type olefin copolymer VI improver; and (c) a secondary hydrocarbylamine compound, a tertiary hydrocarbylamine compound, or combinations thereof. A method for reducing cam wear using same is also disclosed.

Lubricating composition containing an ashless tbn booster

The invention provides a lubricating composition containing an oil of lubricating viscosity and a sulfurized aromatic amine compound, especially sulfur coupled aniline. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the sulfurized aromatic amine compound as a TBN booster and an antioxidant.

Corrosion-Inhibiting Compositions

The invention relates to a composition comprising a) at least one N-methyl-N-acylglucamine of formula (I), wherein R 1 represents a linear or branched, saturated or unsaturated hydrocarbon chain with 7 to 21 carbon atoms, one or more organic acids of formula (II) and/or the salts thereof, R 2 —COOM, wherein R 2 represents a linear or branched alkyl group or a linear or branched mono- or poly-unsaturated alkenyl group with 5 to 29 carbon atoms, and M represents hydrogen or one or more cations, wherein the cations are present in charge-equalizing amounts, and c) one or more alkanolamines of formula (III), wherein NR 1 R 2 R 3 R 1 , R 2 and R 3 represent hydrogen, a linear or branched alkyl group with 1 to 4 carbon atoms, a cycloalkyl group with 5 to 7 carbon atoms, a linear or branched hydroxyalkyl group with 2 to 5 carbon atoms and 1 or 2 hydroxy groups or a hydroxyether group with 2 to 6 carbon atoms, with the provision that at least one of the groups is a hydroxyalkyl group or a hydroxyether group.

Solid lubricant, solid lubricant application apparatus and image forming apparatus

A solid lubricant to be applied onto an image carrier of an image forming apparatus of an electrophotographic system, includes a metal soap and resin particles, and the resin particles have a particle main body constituted by a rigid resin other than fluorine-based resins, and fluorine atoms carried on the surface of the particle main body.

Ionic liquids containing symmetric quaternary phosphonium cations and phosphorus-containing anions, and their use as lubricant additives

An ionic liquid composition having the following generic structural formula: wherein R 1 , R 2 , R 3 , and R 4 are equivalent and selected from hydrocarbon groups containing at least three carbon atoms, and X − is a phosphorus-containing anion, particularly an organophosphate, organophosphonate, or organophosphinate anion, or a thio-substituted analog thereof containing hydrocarbon groups with at least three carbon atoms. Also described are lubricant compositions comprising the above ionic liquid and a base oil, wherein the ionic liquid is dissolved in the base oil. Further described are methods for applying the ionic liquid or lubricant composition onto a mechanical device for which lubrication is beneficial, with resulting improvement in friction reduction, wear rate, and/or corrosion inhibition.

Marine Engine Lubrication

A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-substituted succinic acid anhydride made by halogen- or radical-assisted functionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces. 1. A trunk piston marine engine lubricating oil composition for improving asphaltene handling in use thereof , in operation of such engine when fuelled by a heavy fuel oil , which composition comprises , or is made by admixing , an oil of lubricating viscosity and , in respective minor amounts:(A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and(B) a hydrocarbyl-substituted succinic acid anhydride, made from halogen- or radical-assisted functionalization processes, where the ratio of succinic anhydride groups per substituted hydrocarbyl moiety is in the range of 1.4 to 4.2. The composition of wherein claim 1 , in said hydrocarbyl-substituted succinic acid anhydride (B) claim 1 , the hydrocarbyl group has a number average molecular weight in the range of 500 to 3 claim 1 ,000 daltons.3. The composition of claim 2 , wherein said number average molecular weight is in the range of 700 to 2 claim 2 ,300 daltons.4. The composition of claim 3 , wherein said number average molecular weight is in the range of 800 to 1 claim 3 ,500 daltons.5. The composition of claim 1 , wherein claim 1 , in said hydrocarbyl-substituted succinic acid anhydride (B) claim 1 , the ratio of succinic anhydride groups per substituted hydrocarbyl moiety is in the range of 1.4 to 3.6. The composition of claim 5 , wherein claim 5 , in said hydrocarbyl-substituted succinic acid anhydride (B) claim 5 , the ratio succinic anhydride groups per ...

Engine Lubricants Containing a Polyether

A sump-lubricated, spark-ignited engine is lubricated by supplying thereto a lubricant which comprises (a) an oil of lubricating viscosity; (b) a polyether; and (c) a metal-containing detergent. The lubricant has a total phosphorus content of less than 0.075 percent by weight. 2. The method of wherein the polyether comprises a reaction product of one unit derived from a hydroxy-containing hydrocarbon and two or more units derived from an alkylene oxide claim 1 , wherein the hydroxy-containing hydrocarbon contains 1 to about 50 carbon atoms and the alkylene group of the alkylene oxide contains 2 to 4 carbon atoms claim 1 , wherein the reaction product is optionally further reacted with acrylonitrile and hydrogenated to provide a terminal amino group.3. (canceled)4. The method of wherein the polyether comprises a polyetheramine.5. (canceled)6. (canceled)7. The method of wherein the salicylate detergent comprises an overbased calcium hydrocarbyl-substituted salicylate detergent.8. (canceled)9. The method of wherein the amount of the detergent is about 0.05 to about 1.5 percent by weight.10. The method of wherein the zinc dihydrocarbyldithiophosphate is present in an amount to contribute about 0.01 to about 0.06 weight percent phosphorus.11. The method of wherein the phosphorus content of the lubricant is about 0.01 to about 0.05 percent by weight.12. The method of wherein the sulfated ash level of the lubricant is less than about 0.80 percent.13. The method of wherein the lubricant further comprises an ashless antioxidant.15. The lubricant of wherein the polyether comprises a reaction product of one unit of a hydroxy-containing hydrocarbon and two or more units of an alkylene oxide claim 14 , wherein the hydroxy-containing hydrocarbon contains 1 to 50 carbon atoms and the alkylene group of the alkylene oxide contains 2 to 4 carbon atoms claim 14 , wherein the reaction product is optionally further reacted with acrylonitrile and hydrogenated to provide a terminal amino ...

Threaded joint for pipes

In a threaded joint for pipes constituted by a pin and a box, each having a contact surface comprising a threaded portion and an unthreaded metal contact portion, the contact surface of the pin has a solid corrosion protective, preferably transparent coating based on a UV-curable resin and the contact surface of the box has a solid lubricating coating having plastic or viscoplastic rheological behavior which is preferably formed by the hot melt technique from a composition comprising a thermoplastic polymer, a wax, a metal soap, a corrosion inhibitor, a water-insoluble liquid resin, and a solid lubricant.

Lubricating composition with seals compatibility

The disclosed technology relates to a lubricating composition additives that prevent or reduce seals degradation, especially in the presence of basic amine compounds which impart basicity (measured as total base number or TBN) to the lubricating composition. The lubricating composition contains (a) an oil of lubricating viscosity, (b) a basic amine compound, and (c) a 1,3-dioxane-4,6-dione compound.

LUBRICANT COMPOSITION AND METHOD FOR PRODUCING SAME

The present invention relates to a lubricant composition containing: a base oil (A); at least one kind of calcium-based detergent (B) selected from (B1) calcium sulfonate having a base number of 5.00 mgKOH/g or more and 100 mgKOH/g or less, (B2) calcium salicylate having a branched acyclic hydrocarbon group, and (B3) overbased calcium phenate having a branched acyclic hydrocarbon group; and at least one kind of ashless detergent (C) selected from (C1) a hindered amine compound having one piperidine-derived backbone in a molecule, and (C2) a specific diethanolamine compound. In the lubricant composition, the calcium atom content is 100 ppm by mass or more and 600 ppm by mass or less with respect to the total mass of the lubricant composition, and the ratio (N/Ca) of the nitrogen atom content (N) of the ashless detergent (C) to the calcium atom content (Ca) of the calcium-based detergent (B) is 1.3 to 3.1 as a mass ratio. 2. The lubricant composition according to claim 1 , wherein when the calcium-based detergent (B) comprises the calcium salicylate (B2) claim 1 , a base number of the calcium salicylate (B2) is 5.00 mgKOH/g or more and 600 mgKOH/g or less.3. The lubricant composition according to claim 1 , wherein a calcium atom content (Ca) of calcium carbonate derived from the calcium-based detergent (B) is 400 ppm by mass or less with respect to the total mass of the lubricant composition.4. The lubricant composition according to claim 1 , wherein the nitrogen atom content (N) of the ashless detergent (C) is 100 ppm by mass or more and 1 claim 1 ,700 ppm by mass or less with respect to the total mass of the lubricant composition.5. The lubricant composition according to claim 1 , wherein a sulfate ash content of the lubricant composition is 0.60% by mass or less.6. The lubricant composition according to claim 1 , wherein an initial base number of the lubricant composition is 5.00 mgKOH/g or more.7. A lubricant composition that comprises the lubricant composition ...

LUBRICANT ADDITIVE COMPOSITION, LUBRICATING COMPOSITION CONTAINING SAME AND ENGINE OIL COMPOSITION CONSISTING OF LUBRICATING COMPOSITION

A lubricating composition including: a base oil, a lubricant additive composition including, as a component (A), an organic molybdenum compound of the formula (1) described in the specification, and as a component (B), an amine compound of the formula (2) described in the specification, and a specific metal-based cleaner, wherein a content of the component (B) is 2.9 to 18.6 parts by mass relative to 100 parts by mass of molybdenum atoms of the component (A), and a content of the metal-based cleaner is 0.1% to 10% by mass relative to a total amount of the lubricating composition, wherein the lubricating composition does not include tetraalkyl thiuram disulphide, and wherein the component (A) in terms of the amount of molybdenum atoms is 400 to 1200 ppm by mass relative to a total amount of the lubricating composition. 2. The lubricating composition according to claim 1 , comprising the alkaline earth metal salicylate as a component (C).3. The lubricating composition according to claim 1 , further comprising claim 1 , as a component (D) claim 1 , an alkenyl succinimide dispersant.4. The lubricating composition according to claim 1 , further comprising claim 1 , as a component (E) claim 1 , a phenolic antioxidant.7. The lubricating composition according to claim 1 , further comprising claim 1 , as a component (G) claim 1 , at least one ashless friction regulator selected from the group consisting of polyhydric alcohol fatty acid partial esters claim 1 , (poly)glycerol alkyl ethers claim 1 , alkyl alkanolamines claim 1 , alkenyl alkanolamines and fatty acid alkanolamides. The present invention relates to a lubricant additive composition containing an organic molybdenum compound, a lubricating composition containing the lubricant additive composition and an engine oil consisting of the lubricating composition.Reductions in automobile fuel consumption initiated due to the oil crisis is a very important issue in view of resource protection and environmental protection. ...

Calcium Hydroxyapatite Based Sulfonate Grease Compositions and Method of Manufacture

An overbased calcium sulfonate grease composition comprising a reduced amount of overbased calcium sulfonate, calcium hydroxyapatite, base oil, one or more converting agents, and one or more complexing acids if a complex grease is desired. The calcium sulfonate grease composition improves thickener yield and expected high temperature utility as demonstrated by dropping point. A method of making the composition comprising the steps of mixing the calcium sulfonate and base oil, adding the calcium carbonate either before or after conversion, adding one or more converting agents, and adding one or more complexing acids. All or a portion of one or more of the complexing acids may be added with or prior to the one or more converting agents. 1. A calcium sulfonate grease composition comprising the following ingredients: overbased oil-soluble calcium sulfonate and calcium hydroxyapatite.2. The calcium sulfonate grease composition according to comprising less than 36% overbased oil-soluble calcium sulfonate.3. The calcium sulfonate grease composition according to wherein the grease has a worked 60 stroke penetration between 265 and 295 and a dropping point of 575 F or higher.4. The calcium sulfonate grease composition according to wherein the grease is a complex grease and comprises between 25% and 32% overbased oil-soluble calcium sulfonate.5. The calcium sulfonate grease composition according to further comprising the following ingredients: at least one converting agent and at least one complexing acid.6. The calcium sulfonate grease composition according to wherein the amount of calcium hydroxyapatite is stoichiometrically insufficient to neutralize all of the complexing acid.7. The calcium sulfonate grease composition according to further comprising one or more other basic calcium compounds selected from the group consisting of: calcium hydroxide claim 6 , calcium oxide claim 6 , added calcium carbonate or any combination thereof in a total amount sufficient to ...

Method for lubricating internal combustion engine

A method for lubricating an internal combustion engine, the method including: supplying a lubricating oil composition to a cylinder of an internal combustion engine, wherein the internal combustion engine has a mean effective pressure of no less than 1.3 MPa, wherein an integrated intensity ratio of peaks of CaO in a X-ray diffraction spectrum of an ash is no more than 16.5%, the ash being obtained by incinerating the lubricating oil composition in an air at 950° C.

METHOD FOR REDUCING ENGINE WEAR WITH LUBRICANTS COMPRISING 2-HYDROXYALKYLAMIDE FRICTION MODIFYING / ANTI-WEAR COMPOSITIONS

Lubricant compositions comprising an improved ashless organic friction modifier additive have been found to be capable of reducing both friction and wear. It has been found that mixtures of fatty-alkanolamides containing secondary hydroxyls on the amino alkyl substituent, such as amide mixtures prepared from bis(2-hydroxyporopyl)amine and mixtures of at least two different Cfatty acids, provide better oil solubility and friction reduction than alkanolamides with primary, hydroxyl functionality, such as amide mixtures prepared from di-ethanol)amine. 2. The method according to claim 1 , wherein the friction reducing/antiwear additive composition is added in an amount to prepare a lubricant composition comprising from about 0.1 to about 3 wt % of the friction reducing/antiwear additive composition claim 1 , based on the total weight of the lubricant composition.3. The method according to claim 1 , wherein in formula I claim 1 , R is methyl or ethyl.5. The method according to claim 4 , wherein the friction reducing/antiwear additive composition is added in an amount to prepare a lubricant composition comprising from about 0.1 to about 3 wt % of the friction reducing/antiwear additive composition based on the total weight of the lubricant composition.6. The method according to claim 4 , wherein in formula I claim 4 , R is methyl or ethyl.7. The method according to claim 5 , wherein in formula I claim 5 , R is methyl or ethyl.8. The method according to claim 1 , wherein the lubricant composition also comprises one or more additional lubricant additives selected from the group consisting of dispersants claim 1 , detergents claim 1 , corrosion/rust inhibitors claim 1 , antioxidants claim 1 , other anti-wear agents claim 1 , anti-foamants claim 1 , other friction modifiers claim 1 , seal swell agents claim 1 , demulsifiers claim 1 , V.I. improvers and pour point depressants claim 1 , wherein the combined amount of b) and c) present in the composition is from about 1 to about ...

Environmentally friendly lubricating grease for steel ropes

An environmentally acceptable lubricating grease, comprising: a) 50 wt % to 90 wt % of a biodegradable base oil comprising a biodegradable ester as base oil; b) 3 wt % to 25 wt % of a thickener selected from b1) 3 wt % to 12 wt % biodegradable calcium soap, b2) 3 wt % to 25 wt % bentonites, b3) and mixtures thereof; c) 4 wt % to 40 wt % additives, comprising c1) 1 wt % to 12 wt % fumed silicon dioxide and/or polytetrafluoroethylene and/or mixtures thereof, c2) 2 wt % to 45 wt % of a polymer selected from polyisobutylene, polyisobutylene/butene copolymer, polymethacrylates, polyesters and mixtures thereof, c3) 0.5 wt % to 20 wt % of a solid lubricant.

Surface-modified inorganic substance, method for manufacturing surface-modified inorganic substance, method for modifying surface of inorganic substance with organic substance, heat dissipation material, thermally conductive material, and lubricant

The present invention provides a novel surface-modified inorganic substance obtained by modifying the surface of an inorganic nitride or an inorganic oxide with a boronic acid compound, and a heat dissipation material, a thermally conductive material, and a lubricant which use the surface-modified inorganic substance. The present invention also provides a method for manufacturing the surface-modified inorganic substance, and provides, as a novel method for modifying the surface of an inorganic substance selected from an inorganic oxide and an inorganic nitride with an organic substance, a method for modifying the surface of an inorganic nitride or an inorganic oxide with an organic substance that includes making a contact between the inorganic nitride or the inorganic oxide with a boronic acid compound.

Calcium Hydroxyapatite Based Calcium Sulfonate Grease Compositions and Method of Manufacture

An overbased calcium sulfonate grease composition comprising a reduced amount of overbased calcium sulfonate, calcium hydroxyapatite, base oil, one or more converting agents, and one or more complexing acids if a complex grease is desired. The calcium sulfonate grease composition improves thickener yield and expected high temperature utility as demonstrated by dropping point. A method of making the composition comprising the steps of mixing the calcium sulfonate and base oil, adding the calcium carbonate either before or after conversion, adding one or more converting agents, and adding one or more complexing acids. All or a portion of one or more of the complexing acids may be added with or prior to the one or more converting agents.

Use of a sulphate, and method for producing a steel component by forming in a forming machine

Coating materials with minimized lubricant demand enable optimized tribological conditions in forming flat steel products and are also unobjectionable in relation to their effects on the environment. With such coating materials, steel components can be produced by forming flat steel products in forming machines. For example, a tribologically-active layer may be produced on at least one surface of a flat steel product or a forming machine used to form the flat steel product, wherein the at least one surface comes into contact with the opposing component during forming. The tribologically-active layer may be formed by coating the at least one surface with a coating material from a group consisting of aluminum sulfate, ammonium sulfate, iron sulfate, and magnesium sulfate. The flat steel product may be inserted into the forming machine to be formed into the steel component.”

Low viscosity lubricating oil composition

A lubricating oil composition having a high temperature high shear (HTHS) viscosity at 150° C. in a range of about 1.3 to about 2.3 cP is disclosed. The composition comprises (a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of 1.5 to 6.0 mm2/s; (b) an organomolybdenum compound providing 200 to 1500 ppm by weight of molybdenum to the lubricating oil composition; (c) a calcium-containing detergent providing 750 to 3000 ppm by weight of calcium to the lubricating oil composition; (d) a magnesium-containing detergent providing 200 to 1500 ppm by weight of magnesium to the lubricating oil composition; and (e) a viscosity modifier having a PSSI of 30 or less.

PROCESS FOR PREPARING A COMPLEX CALCIUM SULPHONATE GREASE

The present invention relates to a single-phase process for the preparation of a calcium sulphonate complex grease. More particularly, the invention relates to a single-phase process for the preparation of a calcium sulphonate complex grease in the absence of boric acid and comprising the implementation of at least one step under pressure. 2. The process according to in which step a) comprises the steps of:a.i) mixing, in the reactor, at least one base oil and at least one overbased calcium sulphonate,a.ii) adding at least one carboxylic acid comprising at least 12 carbon atoms, and optionally at least one —OH group, at a temperature of at least 20° C.,a.iii) adding at least one sulphonic acid comprising at least 12 carbon atoms at a temperature of at least 50° C.,a.iv) adding water at a temperature of at least 50° C.,a.v) adding at least one carboxylic acid comprising at least 2 carbon atoms at a temperature of at least 50° C.,a.vi) closing the reactor,a.vii) raising the temperature to a temperature of at least 80° C.,a.viii) opening the reactor, anda.ix) adding lime at a temperature of at least 90° C.3. The process according to in which steps a.i) to a.iii) are implemented in a different order.4. The process according to in which the content by weight of calcium sulphonate ranges from 35 to 55% with respect to the total weight of the starting reagents and the content by weight of base oil ranges from 45 to 65% with respect to the total weight of the starting reagents.5. The process according to in which the carboxylic acid of step a.ii) is selected from the carboxylic acids or the hydroxycarboxylic acids comprising from 12 to 24 carbon atoms.6. The process according to in which the content by weight of carboxylic acid added in step a.ii) ranges from 1 to 4% with respect to the total weight of the starting reagents.7. The process according to which the sulphonic acid of step a.iii) is selected from the sulphonic acids of formula (I):{'br': None, 'sub': 1', 'x', '3 ...

Marine diesel lubricant oil compositions

A lubricating oil composition can include a major amount of an oil of lubricating viscosity and a minor amount of an alkaline earth metal phenol-based detergent. The lubricating oil composition can further have a BN of greater than 140 mg KOH/g, and further wherein the marine diesel cylinder lubricating oil composition is substantially free of unsulfurized tetrapropenyl phenol and its unsulfurized metal salt.

Functional fluids lubricating oil compositions

Provided is a lubricating oil composition comprising a major amount of an oil of lubricating viscosity and a detergent system, and a method of improving brake and clutch capacity while maintaining low torque variation at low speed of a tractor hydraulic system.

LUBRICATING OIL COMPOSITION FOR SHOCK ABSORBER, ADDITIVE FOR FRICTION ADJUSTMENT, LUBRICATING OIL ADDITIVE, SHOCK ABSORBER, AND METHOD FOR ADJUSTING FRICTION OF SHOCK ABSORBER LUBRICATING OIL

To provide a lubricating oil composition for a shock absorber, an additive for friction adjustment, a lubricating oil additive, a shock absorber, and a method for adjusting friction of a shock absorber lubricating oil, capable of achieving both operation stability and riding comfort. A lubricating oil composition for a shock absorber contains a base oil and a friction adjusting agent, in which the friction adjusting agent contains zinc dithiophosphate and pentaerythritol. 1. A lubricating oil composition for a shock absorber comprising:a base oil; anda friction adjusting agent, whereinthe friction adjusting agent contains zinc dithiophosphate and pentaerythritol,the zinc dithiophosphate has at least one secondary alkyl group having 3 to 5 carbon atoms.2. The lubricating oil composition for the shock absorber according to claim 1 , whereinthe friction adjusting agent is formed for adjusting a friction coefficient of the composition in a range of 0.02 to 0.05 by combining the pentaerythritol in a proportion of 0.2 wt. % or more based on a total composition with the zinc dithiophosphate.3. The lubricating oil composition for the shock absorber according to claim 1 , whereinpentaerythritol ester is contained in 1 wt. % or more.5. The lubricating oil composition for the shock absorber according claim 1 , to whereinthe pentaerythritol contains pentaerythritol tetra ester in a largest proportion or in a proportion of 50 wt. % or more.6. The lubricating oil composition for the shock absorber according to claim 2 , whereinthe fiction adjusting agent is formed so as to adjust an amplitude dependent index in a range of 0.3 to 3.0 in addition to the friction coefficient of the composition.7. An additive for friction adjustment of a shock absorber lubricating oil comprising:zinc dithiophosphate; andpentaerythritol, whereinthe additive for friction adjustment adjusts a friction coefficient of the shock absorber lubricating oil in a range of 0.02 to 0.05 and an amplitude dependent ...

Cylinder lubricating oil composition for crosshead diesel engine

The present invention relates to a cylinder lubricating oil for crosshead diesel engines. In addition to having conventional characteristics such as heat resistance, cleanliness, wear resistance, and the like, the cylinder lubricating oil can be used with fuel of any sulfur content and suppresses the amount of piston deposit even when the base number is excessive. In greater detail, the present invention relates to a cylinder lubricating oil composition which includes an ashless dispersant (B) and a metallic detergent (C) in a lubricant base oil (A), in which the product of the number average molecular weight, the content, and the effective concentration of the ashless dispersant (B) is at least 9000, and the endothermic peak temperature of the metallic detergent (C) as measured by DSC at a rate of temperature increase of 50° C./min is at most 460° C.

Use of Lubricants on the Basis of Water-Soluble, High Viscosity Polyglycols

The present invention relates to the use of lubricants on the basis of water-soluble, high-viscosity polyethylene glycols for lubricating open gearing, which is for example used in rotary kilns and mills.

Method for improving deposit control

A method for improving deposit control, while maintaining or improving demulsibility performance, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil that has a particular phenate/carboxylate detergent mixture present in a particular amount in the formulated oil. A lubricating engine oil having a composition including a lubricating oil base stock as a major component; and a phenate/carboxylate detergent mixture as a minor component. The lubricating oils of this disclosure are useful in marine crankcase systems, in particular, marine system oil applications for two-stroke marine diesel engines.

Low-adhesion coatings with solid-state lubricants

Some variations provide a low-adhesion coating comprising a continuous matrix containing a first component, a plurality of inclusions containing a second component, and a solid-state lubricant distributed within the coating, wherein one of the first component or the second component is a low-surface-energy polymer, and the other of the first component or the second component is a hygroscopic material. The solid-state lubricant may be selected from graphite, graphene, molybdenum disulfide, tungsten disulfide, hexagonal boron nitride, or poly(tetrafluoroethylene) or other fluoropolymers. The solid-state lubricant particles may be coated with a metal selected from cadmium, lead, tin, zinc, copper, nickel, or alloys containing one or more of these metals. The solid-state lubricant is typically characterized by an average particle size from about 0.1 μm to about 500 μm. The solid-state lubricant is preferably distributed throughout the coating.

Water-based coolant

A water-based coolant contains: at least one inorganic acid salt selected from among carbonate, hydrogen carbonate, sesquicarbonate, phosphate, borate, molybdate and tungstate; and a metal corrosion inhibitor. The water-based coolant is excellent in cooling performance and unlikely to cause corrosion of a metal material to be cooled. Therefore, the water-based coolant is suitably usable as a quenchant or a cutting oil.

Distillation process for producing a low tpp phenate

Disclosed herein is a process for preparing a sulfurized non-overbased calcium phenate detergent having a reduced content of un-sulfurized alkyl-substituted phenol and its salt. The process steps involve adding an organic solvent to the detergent, wherein the organic solvent has a boiling point of equal or above the boiling point of the un-sulfurized alkyl-substituted phenol. Distilling the organic solvent from the detergent to reduce the content of the un-sulfurized alkyl-substituted phenol.

Poly(meth)acrylate-based viscosity index improver, lubricant additive and lubricant composition containing viscosity index improver

The present invention provides a poly(meth)acrylate-based viscosity index improver comprising a core portion, and three or more arm portions, wherein each of the arm portions consists of a polymer chain comprising a structural unit represented by formula (1) and a structural unit represented by formula (2) and one end of the polymer chain is bonded to the core portion, and wherein a weight-average molecular weight Mw is 100000 or more, and a ratio of the weight-average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, is 1.6 or less. [R 1 represents hydrogen or a methyl group, and R 2 represents a group represented by formula (3), and R 3 represents a C1 to C18 alkyl group that is straight-chain or has a branch having 5 or less carbon atoms: m and n are integers which satisfy m≧5, n≧4, and m+n≦31.]

Lubricant oil composition

A lubricant oil composition of the present invention that is prepared by blending a boron-containing compound therein, the boron-containing compound having a ratio of an integrated value of peaks in the 5 to 25 ppm chemical shift to an integrated value of peaks in the −10 ppm to 25 ppm chemical shift, as determined by 11 B-NMR measurement in deuterochloroform using BF 3 .OEt 2 as an external standard (0 ppm), of 0.5 or higher and 1.0 or lower.

ECOFRIENDLY AND BIODEGRADABLE LUBRICANT FORMULATION AND PROCESS FOR PREPARATION THEREOF

The present invention discloses with the development of ecofriendly and biodegradable lubricant formulation useful for micro electro mechanical systems and process thereof. The new generation Mineral oil free lubricant formulations were developed by esterification of polyols such as 2,2-dimethyl, 1,3-Propanediol, 2,2-diethyl-1,3-propane diol, and aliphatic di carboxylic acids like adipic and azelaic and with mono alcohol, using heterogeneous catalyst Indion 140 with cation exchange properties. The said formulation has a viscosity in the range of 31 to 47 cSt at 40° C., a high viscosity index of 139-196, pour point of approximately <−39° C. with a multifunctional EP additive of recommended dose of 1.5-4%. These new generation lubricants exhibited excellent biodegradability, a high viscosity index, and a low pour point, a high flash point, good lubricity, good oxidative stability, very good protection, against wear, no evaporation loss, good adherence to metal, corrosion inhibiting characteristics and suitability for use with commercial additives. In addition the products are non toxic to the sewage bacteria. 1. A mineral oil free lubricant formulation , wherein the formulation comprises:polyol complex ester selected from the group consisting of 2,2-diethyl, 1,3-Propane-Di azelaic-2-ethyl-1-hexanoate, 2,2-dimethyl, 1,3-propane-Di adipic-2-ethyl-1-hexanoate, and mixture thereof; andoptionally an antioxidant; andoptionally an additive.2. The formulation as claimed in claim 1 , wherein said formulation comprises:(i) polyol complex esters in the range of 94% to 100%;(ii) antioxidant in the range of 0-2%; and(iii) additive in the range of 0 to 4%.3. The formulation as claimed in claim 1 , wherein the ratio of polyol complex esters is in the ratio of 1:1 to 1:3.4. The formulation as claimed in claim 1 , wherein the ratio of polyol complex ester is 1:1.5. The formulation as claimed in claim 1 , wherein the antioxidant is selected from the group consisting of 2 claim 1 ,6-di ...

Method of Lubricating Food Processing Equipment and Related Food Grade, High Temperature Lubricants and Compositions

Methods of lubricating food processing equipment that include applying a food grade, high temperature lubricant composition to the food processing equipment are described. The composition includes a polyol polyester base oil that is a reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid. Also described are methods of preparing a food grade, high temperature composition comprising reacting at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid. The composition may be a lubricant composition. Additionally, the invention provides a food grade, high temperature lubricant composition comprising a polyol polyester base oil that is a reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid. 1. A method of lubricating food processing equipment comprising applying a food grade , high temperature lubricant composition to the food processing equipment , wherein the composition comprises a polyol , polyester base oil that is a reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid and the composition is capable of achieving an H1 classification.2. The method of claim 1 , wherein the at least one neopentyl polyhydric alcohol comprises dipentaerythritol.3. The method of claim 1 , wherein the at least one monocarboxylic acid contains about 5 to about 12 carbon atoms.4. The method of claim 1 , wherein the polyol polyester base oil is a reaction product of at least one neopentyl polyhydric alcohol and at least two monocarboxylic acids that each has a different structure from the other.5. The method of claim 4 , wherein the first of the at least two monocarboxylic acids is straight chained and the second of the at least two monocarboxylic acids is branched.6. The method of claim 6 , wherein the at least one monocarboxylic acid is chosen from a monocarboxylic acid having about 5 to about 10 carbon atoms and a monocarboxylic acid ...

GREASE COMPOSITION, MACHINE COMPONENT, AND STARTER OVERRUNNING CLUTCH

A silicone grease composition having high friction characteristics and wear characteristics is disclosed. The silicone grease composition is provided by adding a zinc salt (B) containing, at a mass ratio from 1:99 to 99:1, a zinc dialkyldithiophosphate (B1) and a zinc dialkyldithiocarbamate (B2) as an extreme-pressure additive to a silicone oil (A). A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed. 1. A method for transmitting torque of a clutch or a torque limiter mechanism , the method comprising enclosing a grease composition in a lubricating part of the clutch or the torque limiter mechanism , wherein the grease composition comprises:a silicone oil (A);a zinc salt (B) containing, at a mass ratio from 1:99 to 40:60, a zinc dialkyldithiophosphate (B1) and a zinc dialkyldithiocarbamate (B2); anda thickener (C).2. The method according to claim 1 , wherein a content of the zinc salt (B) is not less than 5 mass % and not greater than 30 mass % relative to the entire grease composition.3. The method according to claim 1 , wherein the zinc salt (B) contains the zinc dialkyldithiophosphate (B1) and the zinc dialkyldithiocarbamate (B2) at a mass ratio from 2:98 to 40:60.4. The method according to claim 1 , wherein the thickener (C) is selected from the group consisting of lithium soaps and lithium complex soaps.5. The method according to claim 1 , wherein a content of the silicone oil (A) is in a range of not less than 50 mass % and not greater than 95 mass % relative to the total amount of the grease composition claim 1 , and the silicone oil (A) has an aromatic hydrocarbon group in a molecule.6. The method according to claim 1 , wherein the grease composition further comprises a partial ester (D) of a polyhydric alcohol.710-. (canceled)11. The method according to claim 2 , wherein the zinc salt (B) contains the zinc dialkyldithiophosphate (B1) and the zinc dialkyldithiocarbamate (B2) at a mass ratio from 2:98 to 40:60.12. The ...

Grease compositions

The invention relates to a grease composition having a base oil and a thickener that includes hydrophilic metal oxide particles and one or more esters which contain one or more unsaturated C—C bonds and/or at least one OH group. The hydrophilic metal oxide particles have a BET specific surface area of at least 10 m 2 /g and at least 80% of the hydrophilic metal oxide particles have a particle size in the range of from 5 nm to 900 μm. The amount of the thickener is in the range of from 0.1-40% by weight, based on the total weight of the grease composition. The invention further relates to methods for manufacturing the grease compositions, and the use of the grease compositions for lubricating bearings, gears and couplings.

Lubricant Compositions For Reducing Timing Chain Stretch

A method for reducing timing chain stretch in an engine comprising a step of lubricating said timing chain with a lubricating oil composition that includes a major amount of a base oil; and a minor amount of an additive package including (a) at least one overbased calcium detergent, (b) at least one borated dispersant, (c) a metal dialkyl dithiophosphate, and (d) at least one molybdenum compound. The lubricating oil composition has a TBN value of at least 7.5 mg KOH/g of the lubricating oil composition, at least 80 ppm of molybdenum, based on the total weight of the lubricating oil composition, a weight ratio of total calcium in the lubricating oil composition to total molybdenum in the lubricating oil composition of less than 8.4; and a weight ratio of nitrogen from the dispersant in the lubricating composition to total boron in the lubricating oil composition of from 2.6 to 3.0. 1. A method for reducing timing chain stretch in an engine comprising a step of lubricating said timing chain with a lubricating oil composition comprising:a major amount of a base oil; and a) at least one overbased calcium detergent,', 'b) at least one borated dispersant,', 'c) a metal dialkyl dithiophosphate, and;', 'd) at least one oil soluble molybdenum compound;, 'a minor amount of an additive package includingwherein the lubricating oil composition has a TBN value of at least 7.5 mg KOH/gram lubricating oil composition, determined using the method of ASTM-2896, at least 80 ppm of molybdenum based on a total weight of the lubricating oil composition, a weight ratio of total calcium in the lubricating oil composition to total molybdenum in the lubricating oil composition of less than 8.4; and a weight ratio of nitrogen from the dispersant in the lubricating composition to total boron in the lubricating oil composition of from 2.6 to 3.0.2. The method of claim 1 , wherein the base oil has an SAE Viscosity grade of 5W and the lubricating oil composition has a ratio of total ppm of boron ...

Lubricating oil composition, lubrication method, and transmission

Provided are a lubricating oil composition containing (A) a specific amide compound and (B) a metal-based detergent, wherein the content of the metal-based detergent (B) as converted in terms of metal atom is, based on the total amount of the composition, more than 300 ppm by mass and 1,000 ppm by mass or less, and having a high intermetallic friction coefficient and excellent clutch anti-shudder performance; and a lubrication method and a transmission using the composition.

Composition and Method of Manufacturing Overbased Sulfonate Modified Lithium Carboxylate Grease

An overbased sulfonate modified lithium carboxylate grease composition and method of manufacture comprising overbased calcium sulfonate, overbased magnesium sulfonate, or both added to a source of lithium hydroxide, base oil, and optionally one or more acids when a complex grease is desired. When overbased sulfonate is added, the amount of dicarboxylic acid relative monocarboxylic acid may be reduced. Additionally, the amount of lithium hydroxide added may be less than stoichiometrically needed to react with the acids. A sulfonate modified lithium grease with improved thickener yield and dropping point may be made without multiple heating and cooling cycles or using a pressurized kettle.

Lubricating oil composition for internal combustion engine

A lubricating oil composition for an internal combustion engine according to the present invention contains a lubricating base oil, (A1) a basic calcium salicylate having a TBN of 200 mgKOH/g or more, (A2) a basic sodium sulfonate having a TBN of 200 mgKOH/g or more and/or a basic calcium sulfonate having a TBN of 50 mgKOH/g or less, (B) a binuclear organic molybdenum compound and/or a trinuclear organic molybdenum compound, and (C) a polyalkyl (meth)acrylate having an SSI of 30 or less, a total content of molybdenum derived from the binuclear and trinuclear organic molybdenum compounds being 0.025 mass % or more relative to the whole amount of the composition and the lubricating oil composition having predetermined values of a high-temperature high-shear viscosity and a NOACK value (250° C., 1 hr).

Nanoparticle compositions and greaseless coatings for equipment

A composition that includes solid lubricant nanoparticles and an organic medium is disclosed. Also disclosed are nanoparticles that include layered materials. A method of producing a nanoparticle by milling layered materials is provided. Also disclosed is a method of making a lubricant, the method including milling layered materials to form nanoparticles and incorporating the nanoparticles into a base to form a lubricant.