NOVEL LUBRICATING OILS AND GREASES

The present invention relates to additives for lubricating oils and greases which endow said lubricating oils and greases with extremely good performance characteristics under boundary lubrication conditions. Such additives are derivatives of monofunctional or difunctional perfluoropolyethers constituted by mercaptans, sulfides, disulfides, phosphines, phosphine-oxides and phosphoric acid triesters.

A substrate comprising a surface coated with an agent épilamage epilame and method for such a substrate.

L’invention se rapporte à un substrat comprenant une surface dont au moins une partie est recouverte d’un agent épilame comprenant au moins un composé sous la forme d’un copolymère statistique comprenant des unités M, des unités N et optionnellement au moins une unité P, associées par liaisons covalentes par leurs chaînes principales et réparties de manière aléatoire, où ou R 1 , R 2 , R 3 , identiques ou différents, sont H, un groupe alkyle en C 1 –C 10 , alkényle en C 1 –C 10 , Y, X, identiques ou différents, sont des bras espaceurs constitués d’un hétéroatome ou d’une chaîne hydrocarbonée pouvant contenir au moins un hétéroatome, comprenant au moins un atome de carbone, A, identique ou différent, constitue un groupement d’ancrage au substrat, et est choisi parmi les thiols, thioethers, thioesters, sulfures, thioamides, silanols, alkoxysilanes, halogénures de silane, hydroxyles, phosphates, acides phosphoniques protégés ou non, phosphonates protégés ou non, aminés, ammoniums, hétérocycles azotés, acides carboxyliques, anhydrides, catéchol, L, identique ou différent, est un groupement carboné en C 1 –C 20 halogène, R 4 , identique ou différent, est H, CH 3 , une chaîne hydrocarbonée pouvant contenir au moins un hétéroatome, comprenant au moins 2 atomes de carbone. L’invention concerne également un procédé d’épilamage d’un tel substrat, ainsi qu’une pièce d’horlogerie ou de bijouterie comprenant un élément comportant un tel substrat.

A substrate comprising a surface coated with an agent epilame and method of [...] of such a substrate.

L’invention se rapporte à un substrat comprenant une surface dont au moins une partie est recouverte d’un agent épilame comprenant au moins un composé sous la forme d’un copolymère bloc comprenant au moins un bloc d’unités M associées par liaisons covalentes par leurs chaînes principales, et au moins un bloc d’unités N associées par liaisons covalentes par leurs chaînes principales, lesdits blocs étant connectés entre eux par liaisons covalentes par leurs chaînes principales en séquences linéaires, où où R 1 , R 2 , identiques ou différents, sont H, un groupe alkyle en C 1 –C 1 0 , alkényle en C 1 –C 10 Y, X, identiques ou différents, sont des bras espaceurs constitués d’un hétéroatome ou d’une chaîne hydrocarbonée pouvant contenir au moins un hétéroatome, comprenant au moins un atome de carbone A, identique ou différent, constitue un groupement d’ancrage au substrat, et est choisi parmi le groupe comprenant les thiols, thioethers, thioesters, sulfures, thioamides, silanols, alkoxysilanes ...

A substrate comprising a surface coated with an agent epilame and method of [...] of such a substrate.

L’invention se rapporte à un substrat comprenant une surface dont au moins une partie est recouverte d’un agent épilame comprenant au moins un composé sous la forme d’un copolymère statistique comprenant des unités M, des unités N et optionnellement au moins une unité P, associées par liaisons covalentes par leurs chaînes principales et réparties de manière aléatoire, où où R 1 , R 2 , R 3 , identiques ou différents, sont H, un groupe alkyle en C 1 –C 10 , alkényle en C 1 –C 10 Y, X, identiques ou différents, sont des bras espaceurs constitués d’un hétéroatome ou d’une chaîne hydrocarbonée pouvant contenir au moins un hétéroatome, comprenant au moins un atome de carbone A, identique ou différent, constitue un groupement d’ancrage au substrat, et est choisi parmi le groupe comprenant les thiols, thioethers, thioesters, sulfures, thioamides, silanols, alkoxysilanes, halogénures de silane, hydroxyles, phosphates, acides phosphoniques protégés ou non, phosphonates protégés ou non, aminés, ammoniums ...

A substrate comprising a surface coated with an agent épilamage epilame and method for such a substrate.

L’invention se rapporte à un substrat comprenant une surface dont au moins une partie est recouverte d’un agent épilame comprenant au moins un composé sous la forme d’un copolymère bloc comprenant au moins un bloc d’unités M associées par liaisons covalentes par leurs chaînes principales, et au moins un bloc d’unités N associées par liaisons covalentes par leurs chaînes principales, lesdits blocs étant connectés entre eux par liaisons covalentes par leurs chaînes principales en séquences linéaires, où où R 1 , R 2 , identiques ou différents, sont H, un groupe alkyle en C 1 –C 10 , alkényle en C 1 –C 10 ; Y, X, identiques ou différents, sont des bras espaceurs constitués d’un hétéroatome ou d’une chaîne hydrocarbonée pouvant contenir au moins un hétéroatome, comprenant au moins un atome de carbone; A, identique ou différent, constitue un groupement d’ancrage au substrat, et est choisi parmi les thiols, thioethers, thioesters, sulfures, thioamides, silanols, alkoxysilanes, halogénures de silane, hydroxyles, phosphates, acides phosphoniques protégés ou non, phosphonates protégés ou non, aminés, ammoniums, hétérocycles azotés, acides carboxyliques, anhydrides, catéchol; L, identique ou différent, est un groupement carboné en C 1 –C 20 halogène. L’invention concerne également un procédé d’épilamage d’un tel substrat, ainsi qu’une pièce d’horlogerie ou de bijouterie comprenant un élément comportant un tel substrat.

Agent épilamageépilamage and method of using such an agent.

L’invention se rapporte à un agent d’épilamage comprenant au moins un composé comprenant au moins des groupements hydrophobes et oléophobes agencés pour conférer des propriétés épilames audit composé, et au moins un groupement hydrophile agencé pour rendre ledit composé soluble en milieu aqueux, ledit groupement hydrophile étant lié au composé par au moins un groupe clivable. L’invention concerne également un procédé d’épilamage d’un substrat comprenant la préparation d’un bain d’épilamage aqueux par solubilisation d’un tel agent d’épilamage, la mise en contact du substrat avec l’agent épilamage dans le bain d’épilamage, la séparation du groupement hydrophile de l’agent d’épilamage par clivage, le rinçage du substrat pour éliminer les résidus hydrophiles du groupement hydrophile, et le séchage.

Lubricant of magnetic recording media, magnetic recording media, and a magnetic recording device

In lubricant (5) of a magnetic recording medium made of conventional perfluoropolyether, one or more conductive high molecular compound is mixed. The conductive lubricant (5) prevents electric charge generated by frictional electricity from staying on the medium surface, and effectively prolongs the head-life by suppressing the break of the head element because of electric discharge between the disk medium and the head element. By employing the conductive lubricant, magnetic recording media and magnetic recording devices which are more reliable and durable can be realized.

Lubricating oil

Herein disclosed is a lubricating oil comprising at least one member selected from the group consisting of esterified products obtained by reacting: (A) a compound selected from the group consisting of alcohols represented by the following general formula (I), alcohols represented by the following general formula (II) and hydrogenated derivatives thereof; with (B) a fatty acid having not less than 6 carbon atoms or a mixture of the fatty acid with a rosin selected from the group consisting of rosin, hydrogenated rosins, disproportionated rosins and polymerized rosins: (I) (II) in the general formulas (I) and (II), X1 and X2 each independently represents a hydrogen atom or a methyl group and n is an integer ranging from 0 to 10. The lubricating oil is used as rolling mill oils, hydraulic oils cutting-grinding oils, lubricating oils for metal plastic working and those for internal combustion engines.

FINALCUT POLYALKYLENGLYCOLE

POLYOXYALKYLENGLYCOLDERIVATE CONTAINING LUBRICATING OILS

ANTIFRIKTIONSPASTE BZW. -DISPERSION

LUBRICANT BLENDS HAVING HIGH VISCOSITY INDICES

Lubricating oils comprising polyoxyalkylenglycol derivates

END-CAPPED POLYALKYLENE GLYCOLS

LUBRICATING GREASES

The present invention relates to new lubricating greases,the oily component of which is a perfluoropolyether or fluoropolyether derivattve of formula R-O-Q-CFX-(Y)n-Z, having a number average molecular weight ranging from 1,500 to 10,000, where R is a perfluoroalkyl radical RF or it is Z-(Y)n-CFX; Q is a perfluoroalkylpolyethereal or fluoroalkylpolyethereal chain; X is F or CF3; Y is a linking divalent radical; n is zero or 1; Z is a radical selected from -CH2OH, -CH2OR1, -COOR2, -COR3R4 etc. ... or from particular radicals containing heteroatoms or particular aromatic radicals.

LUBRICANT FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING APPARATUS

PROBLEM TO BE SOLVED: To obtain a lubricant which prevents the discharge breakdown of a head element of a hard disk apparatus of a floating or contact type using a medium comprising a nonconductive substrate (e.g. glass) by compounding a perfluoropolyether compd. with a specified amt. of a compd. having a higher electrical conductivity. SOLUTION: A perfluoropolyether compd. is compounded with 0.1-99.9 wt.% compd. having electrical conductivity higher than the perfluoropolyether compd. Examples of such a compd. are ones having backbones represented by formula I, formula II (wherein R1 and R2 are each H, OH, a halogen, sulfo, carboxyl, nitro, amino, alkyl, or aryl; and R3 is an alkyl or aryl), and formula III [wherein R1 to R4 are each H, OH, a halogen, sulfo, carboxyl, nitro, amino, alkyl, or aryl; and H+ and A- are a proton and a conjugate base, respectively, of a protonic acid (the protonic acid is a sulfonic acid, a carboxylic acid, hydrofluoric acid, hydrochloric acid, hydrobromic acid ...

СМАЗОЧНАЯ КОМПОЗИЦИЯ И СПОСОБ ЕЁ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

Настоящее изобретение относится к области смазочных материалов и, в частности, описывает смазочную композицию и способ ее приготовления и использования. Смазочная композиция включает базовое масло и диспергированные в нем частицы каучука, имеющего сшитую под действием излучения структуру, причем базовое масло является непрерывной фазой, а частицы каучука являются дисперсной фазой. Вязкость смазочной композиции по настоящему изобретению можно эффективно регулировать при изменении температуры. По сравнению со смазочной композицией, включающей химически сшитые частицы каучука, она имеет более низкую вязкость при низких температурах и более высокую вязкость при высоких температурах и имеет относительно высокий индекс вязкости, что может соответствовать требованиям при применении при температуре выше 200°C. Кроме того, смазочная композиция по настоящему изобретению также имеет отличные противоизносные и антифрикционные свойства. 5 н. и 19 з.п. ф-лы, 4 табл., 14 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 684 910 C2 (51) МПК C10M 107/02 (2006.01) C10M 159/10 (2006.01) C10M 169/04 (2006.01) C10M 177/00 (2006.01) C10M 101/02 (2006.01) C10M 105/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C08L 23/26 (2006.01) C10N 30/02 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C10M 107/02 (2019.02); C10M 159/10 (2019.02); C10M 169/04 (2019.02) (21) (22) Заявка: 2016115186, 19.04.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 16.04.2019 20.04.2015 CN 201510189203.4 (43) Дата публикации заявки: 24.10.2017 Бюл. № 30 (45) Опубликовано: 16.04.2019 Бюл. № 11 R U 2 6 8 4 9 1 0 C 2 (73) Патентообладатель(и): ЧАЙНА ПЕТРОЛЕУМ ЭНД КЕМИКАЛ КОРПОРЕЙШН (CN), БЕИДЖИНГ РИСЕРЧ ИНСТИТЬЮТ ОФ КЕМИКАЛ ИНДАСТРИ, ЧАЙНА ПЕТРОЛЕУМ ЭНД КЕМИКАЛ КОРПОРЕЙШН (CN) (56) Список документов, цитированных в отчете о поиске: JP 2013227438 А, 07.11.2013. JP S6321698 B2, 09.05.1988. A.L.Shugarman. Lubricant base oils: analysis and characterization of. Encyclopedia of ...

СМАЗОЧНАЯ КОМПОЗИЦИЯ И СПОСОБ ЕЁ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

2016115186 А ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) = КО х (51) МПК С1ОМ 10700 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016115186, 19.04.2016 (71) Заявитель(и): | ЧАЙНА ПЕТРОЛЕУМ ЭНД КЕМИКАЛ Приоритет(ы): КОРПОРЕЙШН (СЮ), (30) Конвенционный приоритет: 20.04.2015 СМ 201510189203.4 БЕИДЖИНГРИСЕРЧ ИНСТИТЬЮТОФ КЕМИКАЛ ИНДАСТРИ, ЧАЙНА (43) Дата публикации заявки: 24.10.2017 Бюл. № 30 ПЕТРОЛЕУМ ЭНД КЕМИКАЛ КОРПОРЕЙШН (СМ) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО (72) Автор(ы): "Союзпатент" ЧЖАН Сяохун (СМ), ЦАЙ Чуаньлунь (СМ), ЛАЙ Цзиньмэй (СМ), ЦЯО Цзиньлян (СМ), СУН Чжихай (СМ), ЦИ Гуйцунь (СМ), ЛИ Бинхай (СМ), ВАН Сян (СМ), ГАО Цзяньмин (СМ), ЧЖАН Хунбин (СМ), ЦЗЯН Хайбинь (СМ), ХЭ Гу (СМ), ЖУ Юэ (СМ) (54) СМАЗОЧНАЯ КОМПОЗИЦИЯ И СПОСОБ ЕЁ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ (57) Формула изобретения 1. Смазочная композиция, характеризующаяся тем, что она включает базовое масло и диспергированные в нем частицы каучука, имеющие сшитую под действием излучения структуру, причем указанное базовое масло представляет собой непрерывную фазу, а частицы каучука являются дисперсной фазой. 2. Смазочная композиция по п. 1, в которой количество частиц каучука составляет 0,001-200 мас. частей, более предпочтительно 0,1-100 мас. частей, наиболее предпочтительно 0,5-50 мас. частей на 100 мас. частей базового масла. 3. Смазочная композиция по п. | или 2, в которой средний размер частиц каучука составляет 20-2000 нм, более предпочтительно 50-1000 нм, наиболее предпочтительно 70-500 нм. 4. Смазочная композиция по п. 1 или 2, в которой содержание геля в частицах каучука составляет 60 мас. % или более, более предпочтительно 75 мас. % или более, наиболее предпочтительно 80 мас. % или более. 5. Смазочная композиция по п. 1 или 2, в которой частицы каучука имеют гомогенную структуру. 6. Смазочная композиция по п. 1 или 2, в которой частицы каучука являются по Стр.: 1 Эа ЕЭС па У 2016115186 А ко меньшей мере одним веществом из ...

Lubricating oils

LUBRICATING OILS AND GREASES

CLEANING DRY-CLEANING FOR GAS TURBINE SHOVELS

Polymeric lubricant compositions, and methods for their use

COMPOSITE SELF LUBRICATING BEARINGS

Composite bearings employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.

Lubricating rubber composition

A rubber composition made of a diene rubber having such excellent properties as heat resistance and mechanical strength and organopolysiloxane or fluoropolymer as a lubricating substance. The lubricating substance may contain isocyanate or cyanate groups, which will react with the hydroxy groups which exist on the surface of a filler usually applied to the diene rubber, thus securely keeping the lubricating substance in the molecular structure of the composition. A liquid diene polymer containing hydroxy groups and having a good compatibility with the diene rubber may be further added to the composition so that its hydroxy groups will react with the isocyanate or cyanate groups in the lubricating substance. The liquid diene polymer may contain epoxy groups instead of hydroxy groups, whereas the lubricating substance containing such functional groups as amino, carboxyl, hydroxy or mercapto groups so that the exoxy groups in the former and the functional groups in the latter will react with each other. The composition may further contain an isocyanate compound containing isocyanate groups, with the liquid diene polymer containing hydroxy groups. In this arrangement, the hydroxy groups in the liquid diene polymer will be replaced with the isocyanate groups, which in turn will react with the functional groups in the lubricating substance.

СМАЗОЧНОЕ МАСЛО, ПЛАСТИЧНАЯ СМАЗКА, СПОСОБ СМАЗКИ УСТРОЙСТВА С ДВИЖУЩИМИСЯ МЕТАЛЛИЧЕСКИМИ ДЕТАЛЯМИ И ФТОРПОЛИЭФИРЫ

FIELD: additives for lubrication oils and plastic lubricants. SUBSTANCE: proposed additives are derivatives of monofunctional or difunctional perfluoropolyesters representing mercaptans, sulfides, disulfides, phosphines, phosphine oxides and triesters of phosphoric acid. EFFECT: improved operation characteristics of lubrication oils and plastic lubricants at interfacial conditions. 10 cl

ANTIFRIKTIONSPASTE BZW. -DISPERSION

The invention describes an apparatus having an evacuable cavity surrounded by a casing, there being arranged in the cavity and/or on the casing, and projecting into the cavity, at least one friction assembly and/or bearing assembly having at least two elements each having a surface, the two surfaces interacting, and at least one of the two surfaces being coated with a lubricating varnish, at least in the region of their interaction, the varnish comprising a polymeric binder and also molybdenum disulphide (MoS2) and graphite as solid lubricants. The invention further describes an anti-friction paste, an anti-friction dispersion, and the use of a lubricating varnish under high or ultra-high vacuum.

Hydrophilic copolymer and medical device

... [Problem] To provide a hydrophilic copolymer which is capable of forming a surface lubricating layer that exhibits excellent lubricity and durability (lubricity retention). In addition, to provide a hydrophilic copolymer which exhibits good solubility in solvents. [Solution] A hydrophilic copolymer which contains: a constituent unit derived from a polymerizable monomer (A) having a sulfobetaine structure; a constituent unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (-SO ...

COMPOSITE SELF LUBRICATING BEARINGS

NOVEL LUBRICATING OILS AND GREASES

The present invention relates to additives for lubricating oils and greases which endow said lubricating oils and greases with extremely good performance characteristics under boundary lubrication conditions. Such additives are derivatives of monofunctional or difunctional perfluoropolyethers constituted by mercaptans, sulfides, disulfides, phosphines, phosphine-oxides and phosphoric acid triesters.

Чист щий состав (варианты) и способ чистки с его использованием

LUBRICANT BLENDS HAVING HIGH VISCOSITY INDICES

LUBRICANT BLENDS HAVING HIGH VISCOSITY INDICES ABSTRACT Novel lubricant mixtures are disclosed having unexpectedly high viscosity indices. The mixtures are blends of high viscosity index polyalphaolefins prepared with activated chromium on silica catalyst and polyalphaolefins prepared with BF3, alumium chloride, or Ziegler-type catalyst. Superior blends are also prepared from HVI-PAO with mineral oil and/or other synthetic liquid lubricants.

Patent RU2016115186A3

`”ВУ“” 2016115186`” АЗ Дата публикации: 01.10.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж Я «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016115186/04(023938) 19.04.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 201510189203.4 20.04.2015 СМ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СМАЗОЧНАЯ КОМПОЗИЦИЯ И СПОСОБ ЕЁ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ Заявитель: ЧАЙНА ПЕТРОЛЕУМ ЭНД КЕМИКАЛ КОРПОРЕЙШН, СМ, БЕИДЖИНГ РИСЕРЧ ИНСТИТЬЮТ ОФ КЕМИКАЛ ИНДАСТРИ, ЧАЙНА ПЕТРОЛЕУМ ЭНД КЕМИКАЛ КОРПОРЕЙШН, СМ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) С1ОМ 107/02 (2006.01) С10М 177/00 (2006.01) СОТ. 23/26 (2006.01) С1ОМ 159/10 (2006.01) С10М 101/02 (2006.01) С10М 30/02 (2006.01) С1ОМ 169/04 (2006.01) С1ОМ 105/04 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СОМ 107/02, С1ОМ 159/19, С1ОМ 169/04, СЛОМ 177/00, С1ОМ 191/02, С1оМ 195/04 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске ( ...

LUBRICANT COMPOSITION, AND PREPARATION METHOD AND USE THEREOF

The present invention relates to the field of lubricant, and specifically provides a lubricant composition and its preparation method and use. The lubricant composition comprises a base oil and rubber particles having radiation crosslinked structure dispersed therein, wherein the base oil is continuous phase and the rubber particles are dispersed phase. The viscosity of the lubricant composition of the present invention can be effectively adjusted as temperature changes. As compared with the lubricant composition comprising chemically crosslinked rubber particles, it has a lower viscosity at low temperatures and a higher viscosity at high temperatures, and has a relatively high viscosity index, which can meet the application requirements at the temperature above 200°C. In addition, the lubricant composition of the present invention also has excellent antiwear and friction-reducing properties.

LUBRICATING OILS AND GREASES

Chemical cleaning solution for gas turbine blades

LUBRICANT BLENDS HAVING HIGH VISCOSITY INDICES

END-CAPPED POLYALKYLENE GLYCOLS

Case 7800(2) ABSTRACT OF THE DISCLOSURE END-CAPPED POLYALKYLENE GLYCOLS A polyether having the formula RX[(CxH2xO)n(cyH2yO)pZ]m (I) wherein: R is either an alkyl or alkyl phenyl group having from 7 to 30 carbon atoms, X is selected from O, S or N; x is an integer from 2 to 4; y is an integer from 6 to 30; Z is a hydrocarbyl group containing from 1 to 30 carbon atoms; m is 1 when X is O or S or m is 2 when X is N; n and p are such that the polether contains between 1 and 40% by weight of (CyH2yO) units and between 40 and 80% by weight of (CxH2xO) units; and the molecular weight of the polyrther is between 500 and 3,500. Lubricating oil compositions comprising such polyethers are disclosed. A method of preparing the polyethers is disclosed and comprises preparing a H-capped polyether, preparing an alkali-metal salt thereof and reacting said salt with an alkylating agent.

COMPOSITE SELF LUBRICATING BEARINGS

Abstract Improved composite bearings are provided employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.

Lubricant composition, and preparation method and use thereof

The present invention relates to the field of lubricant, and specifically provides a lubricant composition and its preparation method and use. The lubricant composition comprises a base oil and rubber particles having radiation crosslinked structure dispersed therein, wherein the base oil is continuous phase and the rubber particles are dispersed phase. The viscosity of the lubricant composition of the present invention can be effectively adjusted as temperature changes. As compared with the lubricant composition comprising chemically crosslinked rubber particles, it has a lower viscosity at low temperatures and a higher viscosity at high temperatures, and has a relatively high viscosity index, which can meet the application requirements at the temperature above 200° C. In addition, the lubricant composition of the present invention also has excellent antiwear and friction-reducing properties.

Composite self lubricating bearings

Improved composite bearings are provided employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.

Lubricating rubber composition

A rubber composition made of a diene rubber having such excellent properties as heat resistance and mechanical strength and organopolysiloxane or fluoropolymer as a lubricating substance. The lubricating substance may contain isocyanate or cyanate groups, which will react with the hydroxy groups which exist on the surface of a filler usually applied to the diene rubber, thus securely keeping the lubricating substance in the molecular structure of the composition. A liquid diene polymer containing hydroxy groups and having a good compatibility with the diene rubber may be further added to the composition so that its hydroxy groups will react with the isocyanate or cyanate groups in the lubricating substance. The liquid diene polymer may contain epoxy groups instead of hydroxy groups, whereas the lubricating substance containing such functional groups as amino, carboxyl, hydroxy or mercapto groups so that the exoxy groups in the former and the functional groups in the latter will react with ...

LUBRICATING OIL COMPOSITION

LUBRICATING OILS COMPRISING POLYOXALKYLENGLYCOL DERIVATIVES

Seal with teflon or rubber

A part is made of a material comprising less than 90% by weight of a polymer selected from the group consisting of polytetrafluoroethylene, polyurethane, nitrile, fluoroelastomer, and polyphenylene sulfide; and more than 10% by weight of another material, comprising about 15% to 60% by volume of grains of titanium carbide dispersed through a metal matrix.

End-capped polyalkylene glycols

A polyether having the formula RX[(CxH2x0)n(CyH2y0)pZ]m (I) wherein: R is either an alkyl or alkyl phenyl group having from 7 to 30 carbon atoms, X is selected from O, S or N; x is an integer from 2 to 4; y is an integer from 6 to 30; Z is a hydrocarbyl group containing from 1 to 30 carbon atoms; m is 1 when X is O or S or m is 2 when X is N; n and p are such that the polyether contains between 1 and 40% by weight of (CyH2y0) units and between 40 and 80% by weight of (CxH2x0) units; and the molecular weight of the polyether is between 500 and 3,500. Lubricating oil compositions comprising such polyethers are disclosed. A method of preparing the polyethers is disclosed and comprises preparing a H-capped polyether, preparing an alkali-metal salt thereof and reacting said salt with an alkylating agent.

LUBRICANT COMPOSITION, AND PREPARATION METHOD AND USE THEREOF

The present invention relates to the field of lubricant, and specifically provides a lubricant composition and its preparation method and use. The lubricant composition comprises a base oil and rubber particles having radiation crosslinked structure dispersed therein, wherein the base oil is continuous phase and the rubber particles are dispersed phase. The viscosity of the lubricant composition of the present invention can be effectively adjusted as temperature changes. As compared with the lubricant composition comprising chemically crosslinked rubber particles, it has a lower viscosity at low temperatures and a higher viscosity at high temperatures, and has a relatively high viscosity index, which can meet the application requirements at the temperature above 200°C. In addition, the lubricant composition of the present invention also has excellent antiwear and friction-reducing properties.

Ëleos para lubrificação que compreendem derivados de polioxialquilenoglicol

Lubricating oils and greases

The present invention relates to additives for lubricating oils and greases which endow said lubricating oils and greases extremely good performance characteristics under boundary lubrication conditions. Such additives are derivatives of monofunctional or difunctional perfluoropolyethers constituted by mercaptans, sulfides, disulfides, phosphines, phosphine-oxides and phosphoric acid triesters.

END-CAPPED POLYALKYLENE GLYCOL

PURPOSE: To obtain polyols capable of increasing the compatibility of lubricating oil compositions and the improvement in viscosity index and the anti-adhesion to inlet valves and a method of the preparation thereof and also lubricating oil composition. CONSTITUTION: A desired polyether is represented by the formula: RX[(CxH2xO)n(CyH2yO)pZ]m (I) (wherein R is a 7-30C alkyl group or alkylphenyl group; x is O, S or N; x is an integer of 2-4; y is an integer of 6-30; Z is a 1-30C hydrocarbyl group; m is 1 when X is O or S or m is 2 when X is N; and n and p are such that the polyether contains 1-40 wt.% (CyH2yO) units and 40-80 wt.% (CxH2xO) units; and the molecular weight of the polyether is 500-3,500. Lubricating oil compositions comprising such a polyether are disclosed. A method of preparing the polyether is disclosed and comprises preparing an H end-capped polyether, preparing an alkali metal salt thereof and reacting said salt with an alkylaing agent. COPYRIGHT: (C)1993,JPO ...

Hydrophilic copolymer and medical device

... [Problem] To provide a hydrophilic copolymer which is capable of forming a surface lubricating layer that exhibits excellent lubricity and durability (lubricity retention). In addition, to provide a hydrophilic copolymer which exhibits good solubility in solvents. [Solution] A hydrophilic copolymer which contains: a constituent unit derived from a polymerizable monomer (A) having a sulfobetaine structure; a constituent unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (-SO ...

LUBRICATING OILS

Se describe una composicion que comprende un aceite lubricante y un refrigerante, en donde el aceite lubricante comprende un derivado de polialquilenglicolde formula (1): RX(RaO)x(RbO)y(RcO)zRd en donde: X es O o S; R es un sustituyente C3-15 que com prende un anillo heterocíclico, en donde el heteroátomo o losheteroátomos de dicho anillo o de dichos anillos son oxígeno y/o azufre; Ra es un grupo alquileno C2; Rb es un grupo alquileno C3; Rc es un grupo alquileno C4;Rd es igual que R o bien es H, un grupo alquilo C1-20 o un grupo acilo C1-20; x, y, z son cada uno independientemente 0 o un numero entero de 100 o menos; yx+y+z = 4 a 100; pero excluyendo aquellas composiciones en donde el refrigerante está libre de halogeno y R contiene un grup o carbonato. También se describe eluso de ésteres boratos como agentes deshidratantes en combinacion con los aceites lubricantes anteriores.

BAND-SHAPED LUBRICATING MATERIAL FOR DRY WIREDRAWING AND PROCESS FOR PRODUCING SAME

Provided is an innovative belt-shaped lubricating material for dry wiredrawing which not only can be used under severe wiredrawing processing conditions such as those of high temperature/high pressure/high speed as well as conventional powdered or granular lubricants for dry wiredrawing but also can cope with diameter reduction to a wide range of wire diameters ranging from a small diameter to a large diameter and a wide range of linear speeds ranging from a low speed to a high speed, has excellent functionalities such as lubricity, followability, spreadability, adhesiveness, heat resistance, processability, workability, safety, durability and productivity irrespective of a processed shape, is effective in improving work environments and is friendly to the global environment. The belt-shaped lubricating material for dry wiredrawing includes a film containing 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 90% by weight of a thermoplastic resin.

New lubricant greases

Hydrophilic copolymer and medical device

A hydrophilic copolymer that can form a surface lubricious layer exhibiting superior lubricating property and durability (lubrication retaining property), is provided. A hydrophilic copolymer having a good solvent solubility is provided. A hydrophilic copolymer is provided containing: structural units derived from a polymerizable monomer (A) having a sulfobetaine structure; structural units derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SO3H), a sulfuric acid group (—OSO3H), a sulfurous acid group (—OSO2H), and groups of salts thereof; and structural units derived from a polymerizable monomer (C) having a photoreactive group.

End-capped polyalkylene glycols

SCHMIERMITTELMISCHUNGEN MIT HOHEN VISKOSITÄTSINDIZES.

POLYOXYALKYLENGLYCOLDERIVATE ENTHALTENDE SCHMIERÖLE

ANTIFRICTION PASTE OR DISPERSION

HYDROPHILIC COPOLYMER AND MEDICAL DEVICE

HYDROPHILIC COPOLYMER AND MEDICAL DEVICE [Problem] To provide a hydrophilic copolymer that can form a surface lubricious layer exhibiting superior lubricating property and durability (lubrication retaining property). To also provide a hydrophilic copolymer having a good solvent solubility. [Means for Resolution] A hydrophilic copolymer containing: structural units derived from a polymerizable monomer (A) having a sulfobetaine structure; structural units derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (-SO3H), a sulfuric acid group (-OSO3H), a sulfurous acid group (-OSO2H), and groups of salts thereof; and structural units derived from a polymerizable monomer (C) having a photoreactive group.

LUBRICANT BLENDS HAVING HIGH VISCOSITY INDICES

Novel lubricant mixtures are disclosed having unexpectedly high viscosity indices. The mixtures are blends of high viscosity index polyalphaolefins prepared with activated chromium on silica catalyst and polyalphaolefins prepared with BF3, aluminum chloride, or Ziegler-type catalyst. Superior blends are also prepared from HVI-PAO with mineral oil and/or other synthetic liquid lubricants.

Multifunctional lubricants and multifunctional additives for lubricants

Hydrocarbyl thiophosphoric acid-phosphite derived olefin and polymeric olefin adducts are superior as lubricating fluid media with internal synergistic multifunctional antiwear, antioxidant properties, and as multifunctional extreme pressure/antiwear additives for both mineral and synthetic lubricating oils as well as fuels.

Multifunctional lubricants and multifunctional additives for lubricants

Hydrocarbyl thiophosphoric acid-phosphite derived olefin and polymeric olefin adducts are superior as lubricating fluid media with internal synergistic multifunctional antiwear, antioxidant properties, and as multifunctional extreme pressure/antiwear additives for both mineral and synthetic lubricating oils as well as fuels.

End-capped polyalkylene glycols

A polyether having the formula RX[(CxH2x0)n(CyH2y0)pZ]m (I) wherein: R is either an alkyl or alkyl phenyl group having from 7 to 30 carbon atoms, X is selected from O, S or N; x is an integer from 2 to 4; y is an integer from 6 to 30; Z is a hydrocarbyl group containing from 1 to 30 carbon atoms; m is 1 when X is O or S or m is 2 when X is N; n and p are such that the polyether contains between 1 and 40% by weight of (CyH2y0) units and between 40 and 80% by weight of (CxH2x0) units; and the molecular weight of the polyether is between 500 and 3,500. Lubricating oil compositions comprising such polyethers are disclosed. A method of preparing the polyethers is disclosed and comprises preparing a H-capped polyether, preparing an alkali-metal salt thereof and reacting said salt with an alkylating agent.

Endverkappte Polyalkylenglycole

BAND-SHAPED LUBRICATING MATERIAL FOR DRY WIREDRAWING AND PROCESS FOR PRODUCING SAME

Provided is an innovative band-shaped lubricating material for dry wiredrawing which not only can be used under severe wiredrawing conditions, such as high-temperature high-pressure high-speed conditions, like conventional powdery or granular lubricants for dry wiredrawing, but also can accommodate both diameter reductions to a wide range of wire diameters ranging from a small to a large diameter and a wide range of wire speeds ranging from a low to a high speed. The lubricating material is not limited in the shapes of works, is excellent in terms of lubricity, conformability, spreadability, adhesion, heat resistance, processability, workability, safety, durability, productivity, and other function, is effective in improving the working environment, and is friendly to the global environment. This band-shaped lubricating material for dry wiredrawing is a material comprising a film which comprises 10-90 wt.% metal salt of a saturated fatty acid and 10-90 wt.% thermoplastic resin.

Lubricant of magnetic recording media, magnetic recording media, and a magnetic recording device

In lubricant (5) of a magnetic recording medium made of conventional perfluoropolyether, one or more conductive high molecular compound is mixed. The conductive lubricant (5) prevents electric charge generated by frictional electricity from staying on the medium surface, and effectively prolongs the head-life by suppressing the break of the head element because of electric discharge between the disk medium and the head element. By employing the conductive lubricant, magnetic recording media and magnetic recording devices which are more reliable and durable can be realized.

Substrate including a surface coated with an epilame agent and method for coating such a substrate with epilame

The invention also concerns a method for coating such a substrate with epilame, said method comprising a step of checking the concentration of epilame agent in the epilame-coating bath by means of the tracer group and if necessary, a step of readjusting the concentration of epilame agent in the epilame-coating bath.

composition of lubricating oil and use of borate ester.

POLYOXYALKYLENGLYKOL-DERIVATE UMFASSENDE SCHMIERÖLE

SCHMIERFETTE.

CHEMISCHE REINIGUNGSLÖSUNG FÜR GASTURBINESCHAUFELN

Lubricant blends having high viscosity indices

Novel lubricant mixtures are disclosed having unexpectedly high viscosity indices. The mixtures are blends of high viscosity index polyalphaolefins prepared with activated chromium on silica catalyst and polyalphaolefins prepared with BF3, aluminum chloride, or Ziegler-type catayst. Superior blends are also prepared from HVIXPAO with mineral oil and/or other synthetic liquid lubricants.

Schmieröle und Schmierfette

BAND-SHAPED LUBRICATING MATERIAL FOR DRY WIREDRAWING AND PROCESS FOR PRODUCING SAME

ANTIFRICTION PASTE OR DISPERSION

The invention describes an apparatus having an evacuable cavity surrounded by a casing, there being arranged in the cavity and/or on the casing, and projecting into the cavity, at least one friction assembly and/or bearing assembly having at least two elements each having a surface, the two surfaces interacting, and at least one of the two surfaces being coated with a lubricating varnish, at least in the region of their interaction, the varnish comprising a polymeric binder and also molybdenum disulphide (MoS2) and graphite as solid lubricants. The invention further describes an anti-friction paste, an anti-friction dispersion, and the use of a lubricating varnish under high or ultra-high vacuum.

Schmieröle und Schmierfette

Band-shaped lubricating material for dry wiredrawing and process for producing same

Provided is an innovative band-shaped lubricating material for dry wiredrawing which not only can be used under severe wiredrawing conditions, such as high-temperature high-pressure high-speed conditions, like conventional powdery or granular lubricants for dry wiredrawing, but also can accommodate both diameter reductions to a wide range of wire diameters ranging from a small to a large diameter and a wide range of wire speeds ranging from a low to a high speed. The lubricating material is not limited in the shapes of works, is excellent in terms of lubricity, conformability, spreadability, adhesion, heat resistance, processability, workability, safety, durability, productivity, and other function, is effective in improving the working environment, and is friendly to the global environment. This band-shaped lubricating material for dry wiredrawing is a material comprising a film which comprises 10-90 wt.% metal salt of a saturated fatty acid and 10-90 wt.% thermoplastic resin.

POLYMERIC LUBRICANT COMPOSITIONS, AND METHODS FOR THEIR USE

Le procédé de l'invention consiste à réduire la friction et l'usure entre des surfaces solides qui sont, ou qui sont amenées à être, en mouvement relatif, et à appliquer sur au moins une des surfaces solides une matière polymère en tant qu'huile lubrifiante synthétique. On peut utiliser les huiles lubrifiantes pour lubrifier des surfaces solides, sur lesquelles des températures de fonctionnement élevées sont présentes.

Composite self lubricating bearings

Improved composite bearings are provided employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.

Schmierfette.

Patent TW223659B

LUBRICANT COMPOSITION, AND PREPARATION METHOD AND USE THEREOF

LUBRICATING RUBBER COMPOSITION

PURPOSE: To provide a lubricating rubber compsn. having excellent lubricating properties and being suitable for abrasive materials, etc., by mixing a diene rubber, a liq. diene polymer contg. a plurality of hydroxyl groups, a polyisocyanate compd. and a specified fluoropolymer. CONSTITUTION: A diene rubber (A) (e.g., styrenebutadiene rubber), a liq. diene polymer contg. two or more units contg. a hydroxyl group in the molecule (B) (e.g., hydroxyl group-terminated polybutadiene), an isocyanate compd. having two or more units contg. an isocyanate group in the molecule (C) (e.g., tolylene diisocyanate) and an organopolysiloxane or a fluoropolymer (D) contg. a group selected from among amino, carboxyl, hydroxyl and mercapto groups (e.g., carboxyl group-contg. polyfluoroether) are mixed together. The obtd. lubricating rubber compsn. is suitably used for paper-feeding rollers of a copyer, wiper blades of automobiles, etc. COPYRIGHT: (C)1989,JPO&Japio ...

MANCAIS AUTO-LUBRIFICANTES COMPOSITOS APERFEICOADOS

CHEMICAL CLEANING SOLUTION FOR GAS TURBINE BLADES

Lubricating oils and greases

ANTIFRICTION PASTE OR DISPERSION

The invention describes an apparatus having an evacuable cavity surrounded by a casing, there being arranged in the cavity and/or on the casing, and projecting into the cavity, at least one friction assembly and/or bearing assembly having at least two elements each having a surface, the two surfaces interacting, and at least one of the two surfaces being coated with a lubricating varnish, at least in the region of their interaction, the varnish comprising a polymeric binder and also molybdenum disulphide (MoS2) and graphite as solid lubricants. The invention further describes an anti-friction paste, an anti-friction dispersion, and the use of a lubricating varnish under high or ultra-high vacuum.

OILS FOR LUBRICATION THAT UNDERSTAND DERIVED FROM POLIOXIALQUILENOGLICOL

LUBRICATING OILS COMPRISING POLYOXYALKYLENGLYCOL DERIVATES

A composition is disclosed which comprises a lubricating oil and a refrigerant, wherein the lubricating oil comprises a polyalkyleneglycol derivative of the formula (I): RX(RaO)x(RbO)y(RcO)zRd, wherein: X = O or S, R is a C3 to C15 substituent comprising a heterocyclic ring, in which the heteroatom(s) in said ring is (are) oxygen and/or sulphur, Ra is a C2 alkylene group, Rb is a C3 alkylene group, Rc is a C4 alkylene group, Rd is the same as R, or is H, a C1-C20 alkyl or a C1-C20 acyl, x, y, z are each independently 0 or an integer of 100 or less, and x + y + z = 4 to 100, but excluding compositions where the refrigerant is halogen-free and R contains a carbonate group. The use of borate esters as dehydrogenating agents in conjunction with the above lubricating oils is also disclosed.

CHEMISCHE REINIGUNGSLÖSUNG FÜR GASTURBINESCHAUFELN

LUBRICIOUS COATINGS WITH SURFACE SALT GROUPS

Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.

composição de óleo de lubrificação e uso de éster de borato.

CHEMICAL CLEANING SOLUTION FOR GAS TURBINE BLADES

The invention is directed to a chemical cleaning composition containing a hydroxylated wetting agent, a chelating agent, an emulsifier, optionally a crown ether, and optionally a non-aromatic solvent. The cleaning composition is 100 % biodegradable, water-based, and able to remove adhered particles having a particle size of less than 35 micrometers. The invention also relates to a process for cleaning a substrate such as a gas turbine engine.

Lubricating oil

Herein disclosed is a lubricating oil comprising at least one member selected from the group consisting of esterified products obtained by reacting: (A) a compound selected from the group consisting of alcohols represented by the following general formula (I), alcohols represented by the following general formula (II) and hydrogenated derivatives thereof; with (B) a fatty acid having not less than 6 carbon atoms or a mixture of the fatty acid with a rosin selected from the group consisting of rosin, hydrogenated rosins, disproportionated rosins and polymerized rosins: см. иллюстрацию в PDF-документе in the general formulas (I) and (II), X1 and X2 each independently represents a hydrogen atom or a methyl group and n is an integer ranging from 0 to 10. The lubricating oil is used as rolling mill oils, hydraulic oils cutting-grinding oils, lubricating oils for metal plastic working and those for internal combustion engines.

Seal with teflon or rubber

A part is made of a material comprising less than 90% by weight of a polymer selected from the group consisting of polytetrafluoroethylene, polyurethane, nitrile, fluoroelastomer, and polyphenylene sulfide; and more than 10% by weight of another material, comprising about 15% to 60% by volume of grains of titanium carbide dispersed through a metal matrix.

Lubricating oil compositions containing specified end-capped polyethers

A polyether having the formulaRX[(CxH2xO)n(CyH2yO)pZ]m(I)wherein: R is either an alkyl or alkyl phenyl group having from 7 to 30 carbon atoms, X is selected from O, S or N; x is an integer from 2 to 4; y is an integer from 6 to 30; Z is a hydrocarbyl group containing from 1 to 30 carbon atoms; m is 1 when X is O or S or m is 2 when X is N; n and p are such that the polyether contains between 1 and 40% by weight of (CyH2yO) units and between 40 and 80% by weight of (CxH2xO) units; and the molecular weight of the polyether is between 500 and 3,500. Lubricating oil compositions comprising such polyethers are disclosed. A method of preparing the polyethers is disclosed and comprises preparing a H-capped polyether, preparing an alkali-metal salt thereof and reacting said salt with an alkylating agent.

LUBRICANT BLENDS HAVING HIGH VISCOSITY INDICES

Novel lubricant mixtures are disclosed having unexpectedly high viscosity indices. The mixtures are blends of high viscosity index polyalphaolefins prepared with activated chromium on silica catalyst and polyalphaolefins prepared with BF3, aluminum chloride, or Ziegler-type catalyst. Superior blends are also prepared from HVI-PAO with mineral oil and/or other synthetic liquid lubricants.

HYDROPHILIC COPOLYMER AND MEDICAL DEVICE

A hydrophilic copolymer that can form a surface lubricious layer exhibiting superior lubricating property and durability (lubrication retaining property), is provided. A hydrophilic copolymer having a good solvent solubility is provided. A hydrophilic copolymer is provided containing: structural units derived from a polymerizable monomer (A) having a sulfobetaine structure; structural units derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SOH), a sulfuric acid group (—OSOH), a sulfurous acid group (—OSOH), and groups of salts thereof; and structural units derived from a polymerizable monomer (C) having a photoreactive group. 1. A hydrophilic copolymer comprising:structural units derived from a polymerizable monomer (A) having a sulfobetaine structure;{'sub': 3', '3', '2, 'structural units derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SOH), a sulfuric acid group (—OSOH), a sulfurous acid group (—OSOH), and groups of salts thereof; and'}structural units derived from a polymerizable monomer (C) having a photoreactive group.3. The hydrophilic copolymer according to claim 1 , wherein in formula (1):{'sup': '1', 'Zis an oxygen atom,'}{'sup': 12', '15, 'Rand Rare each a straight chain alkylene group having 1 to 3 carbon atoms, and'}{'sup': 13', '14, 'Rand Rare each independently a methyl group.'}4. The hydrophilic copolymer according to claim 1 , wherein the polymerizable monomer (A) includes {2-[(meth)acryloyloxy]ethyl}dimethyl-(3-sulfopropyl)ammonium hydroxide claim 1 , [3-(methacryloylamino)propyl]dimethyl(3-sulfopropyl)ammonium hydroxide claim 1 , or a combination thereof.6. The hydrophilic copolymer according to claim 5 , wherein the polymerizable monomer (B) is represented by the formula (2).7. The hydrophilic copolymer according to claim 6 , wherein in the formula (2):{'sup': '2', 'Zis —NH—,'}{'sup': '22', ...

Lubricious coatings with surface salt groups

Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.

Hydrophilic copolymer and medical device

本发明的课题在于提供能够形成发挥优异的润滑性及耐久性(润滑维持性)的表面润滑层的亲水性共聚物。另外，提供具有良好的溶剂溶解性的亲水性共聚物。解决手段为下述亲水性共聚物，其包含：来自聚合性单体(A)的结构单元，所述聚合性单体(A)具有磺基三甲铵乙内酯结构；来自聚合性单体(B)的结构单元，所述聚合性单体(B)具有选自由磺酸基(‑SO 3 H)、硫酸基(‑OSO 3 H)及亚硫酸基(‑OSO 2 H)以及它们的盐的基团组成的组中的至少一种基团；和来自聚合性单体(C)的结构单元，所述聚合性单体(C)具有光反应性基团。

Hydrophilic copolymers and medical devices

Lubricant blends having high viscosity indices

Novel lubricant mixtures are disclosed having unexpectedly high viscosity indices. The mixtures are blends of high viscosity index polyalphaolefins prepared with activated chromium on silica catalyst and polyalphaolefins prepared with BF3, aluminum chloride, or Ziegler-type catayst. Superior blends are also prepared from HVIXPAO with mineral oil and/or other synthetic liquid lubricants.

Lubricant composition, and preparation method and use thereof

【課題】本発明は、潤滑剤の分野に関連し、詳細には潤滑剤組成物ならびにその調製方法およびその使用を提供する。 【解決手段】潤滑剤組成物は、基油と、当該基油に分散されており、放射線架橋構造を有しているゴム粒子とを含んでおり、上記基油は連続相であり、上記ゴム粒子は分散相である。本発明の潤滑剤組成物の粘度は、温度変化に効果的に適合し得る。本発明の潤滑剤組成物は、化学的に架橋したゴム粒子を含んでいる潤滑剤組成物と比較して、低温におけるより低い粘度、および高温におけるより高い粘度を有しており、２００℃よりも高い温度における適用要件を満たす比較的高い粘度指数を有する。加えて、本発明の潤滑剤組成物は、非常に優れた耐摩耗特性および摩擦低減特性を有する。 【選択図】なし

Lubricating greases

New lubricating greases, the oily component of which is perfluoropolyether or fluoropolyether derivative of formula R--O--Q--CFX--(Y) n --Z, having a number average molecular weight ranging from 1,500 to 10,000. wherein R is perfluoroalkyl radical R F or Z(Y) n )--CFX; Q is perfluoroalkylpolyether or fluoroalkylpolyether chain; X is F or CF 3 ; Y is a linking divalent radical; n is zero or 1; and Z is a radical selected from --CH 2 OH, --CH 2 OR 1 , --COOR 2 , --CONR 3 R 4 etc. . . . or from particular radicals containing heteroatoms or particular aromatic radicals.

Process for coating machine parts and coated machine parts produced thereby

A process for coating a machine part surface wherein the surface is cleaned, abraded and treated so as to render the surface directly bondable to a resin-bonded lubricant coating. A resin-bonded lubricant coating then is directly applied to the treated machine part surface and cured so as to cross-link the resin.

Lubricant for belt-shaped dry drawing and method for producing the same

Lubricant mixtures with high viscosity indices

HYDROPHILIC COPOLYMER AND MEDICAL DEVICE

A presente invenção refere-se a fornecer um copolímero hidrofílico que seja capaz de formar uma camada superficial de lubrificação que exibe uma propriedade de lubricidade e durabilidade superior (propriedade de retenção de lubricidade). Além disso, para fornecer um copolímero hidrofílico que exiba solubilidade em solventes satisfatória. Um copolímero hidrofílico que contém: uma unidade constituinte derivada de um monômero polimerizável (A) que tem uma estrutura de sulfobetaína; uma unidade constituinte derivada de um monômero polimerizável (B) que tem pelo menos um grupo selecionado a partir do grupo que consiste em um grupo ácido sulfônico (-SO3H), um grupo ácido sulfúrico (-OSO3H), um grupo ácido sulfuroso (-OSO2H), e grupos de sais desses ácidos; e unidade estrutural derivada de um monômero polimerizável (C) que tem um grupo fotorreativo. The present invention relates to providing a hydrophilic copolymer which is capable of forming a surface lubricating layer that exhibits superior lubricity property and durability (lubricity retention property). Furthermore, to provide a hydrophilic copolymer that exhibits satisfactory solubility in solvents. A hydrophilic copolymer that contains: a constituent unit derived from a polymerizable monomer (A) having a sulfobetaine backbone; a constituent unit derived from a polymerizable monomer (B) that has at least one group selected from the group consisting of a sulfonic acid group (-SO3H), a sulfuric acid group (-OSO3H), a sulfurous acid group (-OSO2H) ), and groups of salts of these acids; and structural unit derived from a polymerizable monomer (C) having a photoreactive group.

A"nuovi olii e grassi lubrificanti"

親水性共重合体および医療用具

Grassi lubrificanti

Pääteryhmillä varustettuja polyalkeeniglykoleja

End-capped polyalkylene glycols.

Pääteryhmillä varustettuja polyalkeeniglykoleja

Endverkappte Polyalkylenglycole

Endverkappte polyalkylenglycole

Chemical cleaning solution for gas turbine blades

The invention is directed to a chemical cleaning composition containing a hydroxylated wetting agent, a chelating agent, an emulsifier, optionally a crown ether, and optionally a non-aromatic solvent. The cleaning composition is 100 % biodegradable, water-based, and able to remove adhered particles having a particle size of less than 35 micrometers. The invention also relates to a process for cleaning a substrate such as a gas turbine engine.

Chemical cleaning solution for gas turbine blades

The invention is directed to a chemical cleaning composition containing a hydroxylated wetting agent, a chelating agent, an emulsifier, optionally a crown ether, and optionally a non-aromatic solvent. The cleaning composition is 100 % biodegradable, water-based, and able to remove adhered particles having a particle size of less than 35 micrometers. The invention also relates to a process for cleaning a substrate such as a gas turbine engine.

Chemische reinigungslösung für gasturbineschaufeln

Cojinetes mejorados, compuestos, autolubricantes

La presente invención se refiere a un cojinete compuesto, autolubricante que tiene una mejor resistencia a la separación o desprendimiento y una mejor resistencia al desgaste, que comprende: un respaldo de metal; una capa porosa sobre el respaldo; un revestimiento sinterizado sobre la capa porosa e impregnado para que entre en la misma, el revestimiento está formado de una mezcla que comprende, por peso; una porción mayor de plomo o de una aleación de plomo lubricante; una porción menor de polímero perfluorado, seleccionado del grupo que consiste de polímeros y copolímeros de politetrafluoroetileno; entre aproximadamente 3 y aproximadamente 15 por ciento de un polímero termoplástico en partículas que tiene un tamaño promedio de partícula inferior a aproximadamente 20 micras, y entre aproximadamente 1 y aproximadamente 5 por ciento de arcilla; y el polímero termoplástico se selecciona para mejorar la adherencia del revestimiento sinterizado a la capa porosa, y el polímero termoplástico queda sustancialmente sin degradarse cuando se sinteriza en la mezcla para formar el revestimiento.

改良された複合自己潤滑性軸受

(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。

Schmieröle und schmierfette

Polyoxyalkylenglycolderivate enthaltende schmieröle

亲水性共聚物及医疗器械

本发明的课题在于提供能够形成发挥优异的润滑性及耐久性(润滑维持性)的表面润滑层的亲水性共聚物。另外，提供具有良好的溶剂溶解性的亲水性共聚物。解决手段为下述亲水性共聚物，其包含：来自聚合性单体(A)的结构单元，所述聚合性单体(A)具有磺基三甲铵乙内酯结构；来自聚合性单体(B)的结构单元，所述聚合性单体(B)具有选自由磺酸基(‑SO 3 H)、硫酸基(‑OSO 3 H)及亚硫酸基(‑OSO 2 H)以及它们的盐的基团组成的组中的至少一种基团；和来自聚合性单体(C)的结构单元，所述聚合性单体(C)具有光反应性基团。