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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 143. Отображено 99.
05-01-2017 дата публикации

GREASE FOR ROLLING BEARING, ROLLING BEARING, ROLLING BEARING DEVICE, AND INFORMATION RECORDING AND REPRODUCING APPARATUS

Номер: US20170002867A1
Автор: HANAOKA Misato, IINO Akihiro, NAKAMURA Hisaya, NAKAYAMA Yukihiro, YODA Hiroki
Принадлежит:

Provided is grease for a rolling bearing of an information recording and reproducing apparatus , containing a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant (A) expressed by the General Formula (1), and a phenol-based antioxidant (B) expressed by the General Formula (2). 2. The rolling bearing device for an information recording and reproducing apparatus according to claim 1 ,wherein the grease contains both the amine-based antioxidant (A) and the phenol-based antioxidant (B).3. The rolling bearing device for an information recording and reproducing apparatus according to claim 1 ,wherein the amount of the amine-based antioxidant (A) is greater than the amount of the phenol-based antioxidant (B) on a mass basis.4. The rolling bearing device for an information recording and reproducing apparatus according to claim 1 ,wherein the base oil contains a refined mineral oil that is classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 240° C. or higher.5. The rolling bearing device for an information recording and reproducing apparatus according to claim 1 ,wherein the base oil contains a refined mineral oil that is classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 250° C. or higher.6. The rolling bearing device for an information recording and reproducing apparatus according to claim 1 ,wherein the base oil contains a mixture of trimers to pentamers of α-olefin having 8 to 12 carbon atoms. Field of the InventionThe present invention relates to grease for a rolling bearing, a rolling bearing, a rolling bearing device, and an information recording and reproducing apparatus.Priority is claimed on Japanese Patent Application No. 2015-009486, filed on Jan. 21, 2015, and Japanese Patent Application No. 2015-232905, filed on Nov. 30, 2015, the ...

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Номер записи: 1
02-01-2020 дата публикации

POLYFLUORO LUBRICANT COMPOSITIONS

Номер: US20200002640A1
Автор: Guo Qian, LIU Wen H., Lu Yu, Yang Jiping, Zhuo Jingyuan
Принадлежит:

Provided herein is a lubricant comprising a compound of Formula I: 2. The polyfluoro lubricant composition of claim 1 , wherein A is —H.3. The polyfluoro lubricant composition of claim 1 , wherein A is —CHCH(OH)CHOH.4. The polyfluoro lubricant composition of claim 1 , wherein A is —CHCH(OH)CHOCHCH(OH)CHOH.5. The polyfluoro lubricant composition of claim 1 , wherein B is —H.6. The polyfluoro lubricant composition of claim 1 , wherein B is —CHCH(OH)CHOH.7. The polyfluoro lubricant composition of claim 1 , wherein B is —CHCH(OH)CHOCHCH(OH)CHOH.8. The polyfluoro lubricant composition of claim 1 , wherein w is 0.9. The polyfluoro lubricant composition of claim 1 , wherein the number average molecular weight of the one or more compounds of Formula I is between about 300 Da to about 9000 Da.10. The polyfluoro lubricant composition of claim 9 , wherein the number average molecular weight of the one or more compound of Formula I is between about 900 Da to about 1800 Da.11. The polyfluoro lubricant composition of further comprising a liquid medium.12. The polyfluoro lubricant composition of claim 11 , wherein the liquid medium is a polyfluoroether (PFPE) polymer.13. The polyfluoro lubricant composition of claim 12 , wherein the polyfluoroether polymer is selected from: Zdol claim 12 , Z-DIAC claim 12 , Z-tetraol claim 12 , A20H claim 12 , AM2001 claim 12 , X1-P claim 12 ,Z-03 and D-4OH.14. An apparatus claim 1 , comprising: a substrate; a magnetic layer over the substrate for magnetic recording; a protective overcoat for protecting the magnetic layer; and a layer of lubricant over the protective overcoat comprising a composition of .15. A method of lubricating a media storage layer surface in an apparatus claim 1 , the method comprising the step of applying a lubricant composition of over a surface to be lubricated.16. The method of claim 1 , wherein the relative touchdown spacing of the polyfluoro lubricant composition of on a media storage layer is more than 2 Angstroms ...

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Номер записи: 2
11-01-2018 дата публикации

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

Номер: US20180009773A1
Автор: FUKUMOTO Naoya, Ito Naoko, MIYASAKA Ryuta, Murofushi Katsumi, TOMITA Hiroyuki, UETAKE Shoko, YAGYU Daisuke, YAMAGUCHI Yuta
Принадлежит: SHOWA DENKO K.K.

This fluorine-containing ether compound is represented by Formula (1). 1. A fluorine-containing ether compound represented by Formula (1) ,{'br': None, 'sup': 1', '2', '3', '4', '5, 'sub': 2', '2, 'R—R—CH—R—CH—R—R\u2003\u2003(1)'}{'sup': 1', '2', '3', '4', '5, '(in Formula (1), Ris an aryl group or an aralkyl group, Ris a divalent linking group having 0 or 1 polar group, Ris a perfluoropolyether chain, Ris a divalent linking group having 2 or 3 polar groups, and Ris an aryl group or an aralkyl group.)'}2. The fluorine-containing ether compound according to claim 1 ,{'sup': 2', '4, 'wherein at least one of the polar groups in the polar groups included in Rand Rof Formula (1) is a hydroxyl group.'}3. The fluorine-containing ether compound according to claim 1 ,{'sup': 2', '4, 'wherein the polar groups included in Rand Rof Formula (1) are all hydroxyl groups.'}6. The fluorine-containing ether compound according to claim 1 ,{'sup': '1', 'wherein Rin Formula (1) is any one selected from a benzene ring group which may have a substituent, a naphthalene ring group which may have a substituent, a benzyl group which may have a substituent, or a naphthylmethyl group which may have a substituent.'}8. The fluorine-containing ether compound according to claim 1 ,{'sup': 4', '5, 'sub': 2', '2', 'z, 'wherein Rin Formula (1) has —(CH—CH—O)—O— (z in the formula represents an integer of 1 to 3) at an end on the Rside.'}9. The fluorine-containing ether compound according to claim 1 ,{'sup': '5', 'wherein Rin Formula (1) is any one selected from a benzene ring group which may have a substituent, a naphthalene ring group which may have a substituent, a benzyl group which may have a substituent, or a naphthylmethyl group which may have a substituent.'}13. The fluorine-containing ether compound according to claim 1 ,wherein a number-average molecular weight is in a range of 500 to 10,000.14. A lubricant for a magnetic recording medium claim 1 , comprising:{'claim-ref': {'@idref': 'CLM- ...

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Номер записи: 3
09-01-2020 дата публикации

MAGNETIC RECORDING MEDIUM, FLUORINE-CONTAINING ETHER COMPOUND AND LUBRICANT FOR MAGNETIC RECORDING MEDIUM

Номер: US20200010619A1
Автор: FUKUMOTO Naoya, HATTORI Hiroko, Ito Naoko, MINAMI Takuya, MIYASAKA Ryuuta, Murofushi Katsumi, OKUNO Yoshishige, OTA Ichiro, SERI Michio, TOMITA Hiroyuki, YAMAGUCHI Yuta
Принадлежит: SHOWA DENKO K.K.

A fluorine-containing ether compound of the present invention is represented by the following General Formula (1). (In the General Formula (1), X is a trivalent atom or a trivalent atom group, A is a linking group including at least one polar group, B is a linking group having a perfluoropolyether chain, and D is a polar group or a substituent having a polar group at the end.) 1. A fluorine-containing ether compound represented by the following General Formula (1):{'br': None, '[Chem. 1]'}{'br': None, 'sub': '3', 'X\ue8a0A-B-D)\u2003\u2003(1)'}(in the General Formula (1), X is a trivalent atom or a trivalent atom group, A is a linking group including at least one polar group, B is a linking group having a perfluoropolyether chain, and D is a polar group or a substituent having a polar group at the end).2. The fluorine-containing ether compound according to claim 1 , wherein X in the General Formula (1) is a hydrocarbon.3. The fluorine-containing ether compound according to claim 1 , wherein X in the General Formula (1) is an aliphatic ring.4. The fluorine-containing ether compound according to claim 1 , wherein X in the General Formula (1) is an aromatic ring.5. The fluorine-containing ether compound according to claim 1 , wherein X in the General Formula (1) is a heterocyclic ring.6. The fluorine-containing ether compound according to claim 1 ,wherein X in the General Formula (1) is a trivalent atom group having a tetrahedron structure including a carbon atom at the center or a trivalent atom group having a cyclic planar structure at the center.7. The fluorine-containing ether compound according to claim 1 ,wherein A in the General Formula (1) is a linking group including at least one hydroxyl group.12. The fluorine-containing ether compound according to claim 1 ,wherein the number-average molecular weight is in a range of 1,000 to 10,000.13. A lubricant for a magnetic recording medium comprising the fluorine-containing ether compound according to .14. A magnetic ...

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Номер записи: 4
18-01-2018 дата публикации

Ionic Liquid, Lubricant, and Magnetic Recording Medium

Номер: US20180016510A1
Автор: Hirofumi Kondo, Kouki Hatsuda, KyungSung Yun, Nobuo Tano
Принадлежит: Dexerials Corp

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid including 2 or more cations in a molecule of the conjugate acid, wherein the conjugate acid includes a monovalent group including a straight-chain hydrocarbon group having 6 or more carbon atoms, and an acid that is a source of the conjugate base has a pKa in acetonitrile of 10 or less.

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Номер записи: 5
23-01-2020 дата публикации

ELECTRORHEOLOGICAL FLUID

Номер: US20200024543A1
Автор: QIU Zhaohui, XIONG Xiaomin
Принадлежит: SUN YAT-SEN UNIVERSITY

The present invention provides an electrorheological fluid, which includes a dielectric particle, a conductor particle and insulating oil, and the dielectric particle is evenly dispersed in the insulating oil; wherein the conductor particle is evenly dispersed in the insulating oil or inlaid in an interior and on a surface of the dielectric particle. The electrorheological fluid has the advantages of high shear stress, long service life, good temperature stability and small leakage current. 1. An electrorheological fluid , comprising a dielectric particle , a conductor particle and insulating oil , wherein the dielectric particle is evenly dispersed in the insulating oil , and the conductor particle is evenly dispersed in the insulating oil or inlaid in an interior and on a surface of the dielectric particle.2. The electrorheological fluid according to claim 1 , wherein the dielectric particle has a dielectric constant greater than 10 and a resistivity greater than 10 Ω·m.3. The electrorheological fluid according to claim 2 , wherein the dielectric particle is selected from one or more of TiO claim 2 , CaTiO claim 2 , BaTiO claim 2 , SrTiOand LaTiO.4. The electrorheological fluid according to claim 1 , wherein when a temperature is less than 20° C. claim 1 , the conductor particle is a solid with a resistivity less than 10Ω·m claim 1 , and the conductor particle is selected from one or more of metal claim 1 , carbon and a conductive organic matter.5. The electrorheological fluid according to claim 4 , wherein the metal is one or more of Ag claim 4 , Al claim 4 , Au claim 4 , Cu claim 4 , Fe claim 4 , Hf claim 4 , In claim 4 , Nd claim 4 , Ni claim 4 , Pd claim 4 , Pt claim 4 , Rh claim 4 , Ru claim 4 , Sm claim 4 , Sn claim 4 , Ti claim 4 , V claim 4 , Y and Zr;the carbon is one or more of amorphous carbon, graphite, graphene and reduced graphene oxide; andthe conductive organic matter is one or more of polyacetylene, polythiophene, polypyrrole, polyaniline, ...

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Номер записи: 6
25-01-2018 дата публикации

Lubricant for Magnetic Recording Medium, and Magnetic Recording Medium

Номер: US20180025748A1
Автор: Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo
Принадлежит:

A lubricant for a magnetic recording medium including an ionic liquid including a Bronsted acid and a Bronsted base that is primary amine as constituents of the ionic liquid, wherein the Bronsted acid includes a fluorine-containing chain, the Bronsted base includes a fluorine-containing chain that is a perfluoroalkyl chain or a perfluoropolyether chain, wherein the fluorine-containing chain in the Bronsted acid is a perfluoropolyether chain or the fluorine-containing chain in the Bronsted base is the perfluoropolyether chain, or the fluorine-containing chain in the Bronsted acid is the perfluoropolyether chain and the fluorine-containing chain in the Bronsted base is the perfluoropolyether chain, and a number average molecular weight of the fluorine-containing chain in the Bronsted acid is 1,500 or less. 1. A lubricant for a magnetic recording medium , comprising:an ionic liquid including a Bronsted acid and a Bronsted base that is primary amine as constituents of the ionic liquid,wherein the Bronsted acid includes a fluorine-containing chain,wherein the Bronsted base includes a fluorine-containing chain that is a perfluoroalkyl chain or a perfluoropolyether chain,wherein the fluorine-containing chain in the Bronsted acid is a perfluoropolyether chain or the fluorine-containing chain in the Bronsted base is the perfluoropolyether chain, or the fluorine-containing chain in the Bronsted acid is the perfluoropolyether chain and the fluorine-containing chain in the Bronsted base is the perfluoropolyether chain, andwherein a number average molecular weight of the fluorine-containing chain in the Bronsted acid is 1,500 or less.2. The lubricant for a magnetic recording medium according to claim 1 ,wherein the number average molecular weight of the fluorine-containing chain in the Bronsted acid is 500 or less.3. The lubricant for a magnetic recording medium according to claim 1 ,wherein the Bronsted acid is sulfonic acid including the fluorine-containing chain or sulfonyl ...

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Номер записи: 7
02-02-2017 дата публикации

IONIC PERFLUOROPOLYETHER LUBRICANT

Номер: US20170032813A1
Автор: OOI Yew Hong, POR Yeng Yeng, SALEH Khairul Azlan Bin
Принадлежит: FUJI ELECTRIC (MALAYSIA) SDN, BHD.

An ionic lubricant includes a single lubricant compound having a perfluoropolyether main chain, wherein each end of the perfluoropolyether main chain is terminated by an end group, and at least one of the end groups includes an ionic bond and at least one functional group. The ionic perfluoropolyether lubricant has unique characteristics that allows its ultra-thin and uniform distribution over a protective overcoat layer of a magnetic recording medium, while at the same time providing its molecules with strong adhesion power to the protective overcoat layer of the magnetic recording medium compared to existing lubricants, so as to provide shorter magnetic spacing between the magnetic recording medium and the magnetic head, and enable longer operation hours for the magnetic recording medium. 1. An ionic lubricant , comprising a single lubricant compound having a perfluoropolyether main chain ,wherein each end of the perfluoropolyether main chain is terminated by an end group, and at least one of the end groups comprises an ionic bond and at least one functional group.2. The ionic lubricant according to claim 1 , wherein the ionic bond is between a carboxylic acid group and a basic amino group.3. The ionic lubricant according to claim 1 , wherein the end group comprises a hydrocarbon chain.4. The ionic lubricant according to claim 3 , wherein the end group comprises from 3 to 6 carbon atoms.5. The ionic lubricant according to claim 1 , wherein the end group comprises a fluorocarbon chain.6. The ionic lubricant according to claim 5 , wherein the end group comprises from 3 to 6 carbon atoms.7. The ionic lubricant according to claim 1 , wherein the functional group is a hydroxyl group.8. The ionic lubricant according to claim 1 , wherein the functional group is a phenyl group.9. The ionic lubricant according to claim 1 , wherein the ionic bond is at least two chemical bonds from the end of the perfluoropolyether main chain.12. A magnetic recording medium claim 1 , ...

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Номер записи: 8
30-01-2020 дата публикации

GREASE COMPOSITION FOR RESIN LUBRICATION AND SLIDING MEMBER HAVING SLIDING SURFACE MADE OF RESIN

Номер: US20200032157A1
Автор: Asai Yusuke, KITAJIMA Takuya, TSUNA Motojiro, Yamamoto Daiki
Принадлежит:

The invention provides a grease composition for lubrication of a sliding surface made of resin, including a fluorine-based base oil and a synthetic hydrocarbon oil as a base oil; a fluorine-based thickener, and a lithium soap thickener or a lithium complex soap thickener as a thickener; and an extreme pressure additive as an additive. The invention also provides a sliding member including a sliding surface made of a resin wherein the grease composition for lubrication is applied to the sliding surface made of a resin. 1. A grease composition for lubrication of a sliding surface made of a resin , comprising:a fluorine-based base oil;a synthetic hydrocarbon oil;a fluorine-based thickener;a lithium soap thickener or a lithium complex soap thickener; andan extreme pressure additive,{'sup': '2', 'wherein the synthetic hydrocarbon oil has a kinetic viscosity at 40° C. of 30 to 220 mm/s.'}2. The grease composition according to claim 1 , wherein the extreme pressure additive is at least one selected from the group consisting of a phosphorus extreme pressure additive and a macromolecular ester extreme pressure additive.3. The grease composition according to claim 1 , wherein a worked penetration is in the range of 265 to 340.4. A sliding member comprising a sliding surface made of a resin wherein the grease composition according to is applied to the sliding surface.5. The sliding member according to claim 4 , wherein the sliding member is a sliding switch.6. The sliding member according to claim 4 , wherein the sliding member is a gear device. This application is based on Japanese Patent Application (No. 2018-141700) filed on Jul. 27, 2018, the contents of which are incorporated herein by reference.The present invention relates to a grease composition for lubrication of a sliding surface made of resin and a sliding member having a sliding surface made of resin.In JP-A-2016-139589, a sliding switch (resin sliding member) for improving waterproof property is proposed.When a ...

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Номер записи: 9
07-02-2019 дата публикации

SURFACE TREATMENT AGENT FOR SUBSTRATE, COMPRISING PERFLUOROPOLYETHER GROUP-CONTAINING PHOSPHATE COMPOUND

Номер: US20190040195A1
Автор: Takao Kiyotaka
Принадлежит: Asahi Glass Company, Limited

To provide a surface treatment agent capable of imparting excellent water/oil repellency, fingerprint stain removability, abrasion resistance and lubricity to the surface of a substrate. 1: A surface treatment agent , comprising a perfluoropolyether group-containing phosphate compound , wherein the perfluoropolyether group-containing phosphate compound is a compound represented by formula (1):{'br': None, 'sup': 1', '1, 'sub': m', '2m', 'n1, 'B—(CFO)-A\u2003\u2003(1)'}{'sup': 1', '1', 'F1', '1', '1', '1', '1', '2', '1', '2', '1', 'F1', '1', '1, 'sub': 2', '2, 'wherein Ais a monovalent organic group having at least one phosphoric acid group at its terminal, Bis R—O— or D-Q-O—CH— and a compound represented by the formula (1) wherein Ais a monovalent organic group having at least one phosphoric acid group at its terminal, Bis A-O—, wherein a content of the compound represented by the formula (1) wherein Bis A-O— is from 10 to 60 parts by mass, per 100 parts by mass in total of the compound represented by the formula (1) wherein Bis R—O— or D-O—O—CH—,'}{'sup': F1', '1', '1', '2, 'sub': 1-6', '3', '3', '1-20', '2-20', '1-20', '2-20, 'wherein Ris a Cperfluoroalkyl group, Dis CF— or CF—O—, Ois a Cfluoroalkylene group comprising a hydrogen atom, a Cfluoroalkylene group comprising a hydrogen atom and having an etheric oxygen atom between carbon-carbon atoms, a Calkylene group, or a Calkylene group having an etheric oxygen atom between carbon-carbon atoms, and Ais a monovalent organic group having at least one phosphoric acid group at its terminal,'}m is an integer of from 1 to 6, and{'sub': m', '2m', 'n1', 'm', '2m, 'n1 is an integer of from 1 to 200, provided that when n1 is at least 2, (CFO)may be one composed of at least two types of (CFO) different in m.'}2: (canceled)3: The surface treatment agent according to claim 1 , wherein (CFO)is a group represented by formula (2-1):{'br': None, 'sub': r', '2r', 'n2', 's', '2s', 'n3, '(CFO)(CFO)\u2003\u2003(2-1)'}{'sub': r', '2r', ...

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Номер записи: 10
15-02-2018 дата публикации

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

Номер: US20180047419A1
Автор: FUKUMOTO Naoya, Kato Tsuyoshi, MIYASAKA Ryuta, Murofushi Katsumi, TOMITA Hiroyuki, UETAKE Shoko, YAGYU Daisuke, YAMAGUCHI Yuta
Принадлежит: SHOWA DENKO K.K.

A fluorine-containing ether compound of the present invention is represented by Formula (1). 1. A fluorine-containing ether compound represented by Formula (1) ,{'br': None, 'sup': 1', '2', '3, 'sub': 2', '2, 'R—CH—R—CH—R\u2003\u2003(1)'}{'sup': 1', '2', '3', '1, 'claim-text': {'br': None, 'sub': 2', 'y-1', '2', 'y', 'z', '2', 'y-1, '—(CF)—O—((CF)O)—(CF)—\u2003\u2003(3)'}, '(In Formula (1), Ris an organic end group having 3 or more carbon atoms which includes two or more polar groups with each polar group being bonded to different carbon atoms and the carbon atoms to which the polar groups are bonded being bonded to each other via a linking group including the carbon atoms which are not bonded to the polar groups, Rincludes a perfluoropolyether chain represented by Formula (3), and Ris a hydroxyl group or R)'}(In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).2. A fluorine-containing ether compound represented by Formula (2) ,{'br': None, 'sup': 1', '2', '1, 'sub': 2', '2, 'R—CH—R—CH—R\u2003\u2003(2)'}{'sup': 1', '2, 'claim-text': {'br': None, 'sub': 2', 'y-1', '2', 'y', 'z', '2', 'y-1, '—(CF)—O—((CF)O)—(CF)—\u2003\u2003(3)'}, '(In Formula (2), Ris an organic end group having 3 or more carbon atoms which includes two or more polar groups with each polar group being bonded to different carbon atoms and the carbon atoms to which the polar groups are bonded being bonded to each other via a linking group including the carbon atoms which are not bonded to the polar groups, and Rincludes a perfluoropolyether chain represented by Formula (3),)'}(In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).3. The fluorine-containing ether compound according to claim 1 ,{'sup': '1', 'wherein the polar group included in Ris a hydroxyl group.'}4. The fluorine-containing ether compound according to claim 1 ,{'sup': '1', 'wherein Rhas an ether bond (—O—).'}18. The fluorine-containing ether compound according ...

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Номер записи: 11
14-02-2019 дата публикации

POLYMERS AND THE USE THEREOF AS LUBRICATING AGENTS IN THE PRODUCTION OF ALKALI METAL FILMS

Номер: US20190048281A1
Автор: Armand Michel, Bouchard Patrick, GIRARD Gabriel, HAMEL-PÂQUET Julie, VERREAULT Serge, Zaghib Karim
Принадлежит: HYDRO-QUEBEC

Polymers used as rolling lubricating agents, to compositions including said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. An improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles. 1. (canceled)3. The method of claim 2 , wherein step (a) is carried out by the application of the lubricating agent on the alkali metal strip at the inlet of the rollers and/or by prior coating of the rolling rollers with or without further addition of lubricating agent directly onto the alkali metal strip before step (b).4. The method of claim 2 , wherein m and n are selected to provide that the molecular weight of the lubricating agent is from 2000 to 250 claim 2 ,000.5. The method of claim 4 , wherein m and n are selected to provide that the molecular weight of the lubricating agent is from 2000 to 50 claim 4 ,000.6. The method of claim 4 , wherein m and n are selected to provide that the molecular weight of the lubricating agent is from 50 claim 4 ,000 to 200 claim 4 ,000.7. The method of claim 2 , wherein R claim 2 , independently at each occurrence claim 2 , is a linear or branched monovalent hydrocarbon radical of formula CH claim 2 , wherein 8≤r≤18.8. The method of claim 2 , wherein Ris independently at each occurrence a linear or branched monovalent hydrocarbon radical of formula CH claim 2 , wherein 8≤t≤18.9. The method of claim 2 , wherein 8≤s≤50.10. The method of claim 2 , wherein the ratio of the repeated units A:B expressed as mole percent in the polymer is from 100:0 to 10:90.11. The method of claim 10 , wherein the ratio of the repeated ...

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Номер записи: 12
23-02-2017 дата публикации

LUBRICANT ADDITIVE COMPOSITIONS CONTAINING THIOPHOSPHATES AND THIOPHOSPHATE DERIVATIVES

Номер: US20170051229A1
Автор: DURBIN Kristine, Edwards David, McCovick Robert E.
Принадлежит:

The invention relates to thiophosphates and derivatives thereof useful as antiwear additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, methods for making and using the same, including methods of lubricating machines and machine parts and methods of extending the useful life of elastomeric seal components of such machines. 2. The lubricant additive composition of claim 1 , wherein the sulfonate is selected from calcium sulfonate and magnesium sulfonate claim 1 , and wherein the phenate is selected from calcium phenate and magnesium phenate.4. The lubricant additive composition of claim 1 , wherein Xis R.11. The lubricant additive composition of claim 2 , wherein the detergent is selected from a magnesium sulfonate detergent and a calcium phenate detergent.12. The lubricant additive composition of claim 11 , wherein the detergent is an overbased magnesium sulfonate detergent.13. The lubricant additive composition of claim 11 , wherein the detergent is an overbased calcium phenate detergent.14. The lubricant additive composition of claim 2 , wherein the detergent is selected from an overbased calcium sulfonate detergent and a neutral calcium sulfonate detergent.15. The lubricant additive composition of claim 1 , wherein the lubricant additive composition further comprises one or more additive components selected from the group consisting of an antioxidant claim 1 , antiwear agent claim 1 , corrosion inhibitor claim 1 , extreme pressure agent claim 1 , dispersant claim 1 , viscosity index improver claim 1 , and friction modifier.16. The lubricant additive composition of claim 15 , wherein the extreme pressure agent is an organic polysulfide.17. The lubricant additive composition of claim 16 , wherein the polysulfide is an S3-enriched organic polysulfide.18. The lubricant additive composition of claim 1 , wherein the tribologically acceptable salt is not an amine salt.20. The lubricant additive composition of ...

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Номер записи: 13
14-02-2019 дата публикации

Ionic Liquid, Lubricant, and Magnetic Recording Medium

Номер: US20190051326A1
Автор: Baghel Pankaj, Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo
Принадлежит:

A lubricant including an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid includes a group including a hydroxyl group and a group including a straight-chain hydrocarbon group having 6 or greater carbon atoms, and a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less. 4. A magnetic recording medium comprising:a non-magnetic support;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a magnetic layer disposed on the non-magnetic support; and the lubricant according to , disposed on the magnetic layer.'} The present invention relates to an ionic liquid, a lubricant including the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an actual film thickness of the lubricant is of a molecular order. Accordingly, it is not exaggeration to say that the most important thing for a thin film magnetic recording medium is to select a lubricant having excellent abrasion resistance in any environment.During a life of a magnetic recording medium, it is important that a lubricant is present on a surface of the medium without causing desorption, spin-off, and chemical deteriorations. Making the lubricant present on a surface of a medium is more difficult, as the surface of the thin film magnetic recording medium is smoother. This is because the thin film magnetic recording medium does not have an ability of replenishing a lubricant as with a coating-type magnetic recording medium.In the case where an adhesion force between a lubricant and a protective film disposed at a surface of a magnetic layer is weak, moreover, a film thickness of the lubricant is reduced during heating or sliding hence accelerating ...

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Номер записи: 14
14-02-2019 дата публикации

MAGNETORHEOLOGICAL FLUID COMPOSITION AND VIBRATION DAMPING DEVICE USING SAME

Номер: US20190051437A1
Автор: ENDO Daijiro, Komori Kentaro, Sakanoue Shuichi, YAMAMOTO Seiichiro
Принадлежит:

This vibration damping device () includes a magnetorheological fluid composition in a cylinder (). The magnetorheological fluid composition includes magnetic particles; a dispersant having the magnetic particles dispersed therein; and a friction modifier. The friction modifier is an ester-based additive having a hydrocarbon chain having 14 to 22 carbon atoms, preferably an alkyl chain or an alkenyl chain. The content of the friction modifier is 0.1 to 5 mass %. 1. A magnetorheological fluid composition comprising:magnetic particles;a dispersant having the magnetic particles dispersed in the dispersant; anda friction modifier,wherein the friction modifier is an ester-based additive having a hydrocarbon chain having 14 to 22 carbon atoms,wherein the content of the friction modifier is 0.1 to 5 mass % relative to a total amount of the magnetorheological fluid composition.2. A vibration damping device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a cylinder filled with the magnetorheological fluid composition according to ;'}a piston rod inserted through the cylinder;a piston connected to the piston rod and disposed in the cylinder to be slidable in an axial direction;a first fluid chamber and a second fluid chamber defined in the cylinder by the piston and each containing the magnetorheological fluid composition;a communication hole formed in the piston in such a way that the first fluid chamber and the second fluid chamber communicate with each other through the communication hole; andan electromagnetic coil configured to apply a magnetic field to the magnetorheological fluid composition flowing in the communication hole. The present invention relates to a magnetorheological fluid composition and a vibration damping device using the same.As a vibration damping device, a variable damping force damper has been known which uses a magnetorheological fluid (MRF) composition to change its apparent viscosity depending on the strength of a magnetic field ...

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Номер записи: 15
02-03-2017 дата публикации

IONIC LIQUID, LUBRICANT, AND MAGNETIC RECORDING MEDIUM

Номер: US20170058227A1
Автор: Hatsuda Kouki, ITO Makiya, Kondo Hirofumi, Tano Nobuo, WATANABE Masayoshi, Yun KyungSung
Принадлежит: DEXERIALS CORPORATION

A lubricant including an ionic liquid, which includes a conjugate acid (B) and a conjugate base (X), and is protic, wherein the conjugate acid includes a straight-chain hydrocarbon group having 10 or more carbon atoms, and wherein the conjugate base is represented by the following general formula (1): 2. The lubricant according to claim 1 ,wherein a base that is a source of the conjugate acid is amine, amidine, guanidine, or imidazole.4. The lubricant according to claim 1 , wherein the base that is a source of the conjugate acid is a compound including a primary nitrogen atom claim 1 , a compound including a secondary nitrogen atom claim 1 , or a compound including a tertiary nitrogen atom.6. The lubricant according to claim 1 , wherein the hydrocarbon group is an alkyl group.7. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant according to on the magnetic layer.'}9. The ionic liquid according to claim 8 ,wherein a base that is a source of the conjugate acid is amine, amidine, guanidine, or imidazole.11. The ionic liquid according to claim 8 , wherein the base that is a source of the conjugate acid is a compound including a primary nitrogen atom claim 8 , a compound including a secondary nitrogen atom claim 8 , or a compound including a tertiary nitrogen atom.13. The ionic liquid according to claim 8 , wherein the hydrocarbon group is an alkyl group. The present invention relates to a protic ionic liquid, a lubricant containing the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an actual film thickness of the lubricant is of a ...

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Номер записи: 16
09-03-2017 дата публикации

IONIC LIQUID, LUBRICANT, AND MAGNETIC RECORDING MEDIUM

Номер: US20170066989A1
Автор: Hatsuda Kouki, ITO Makiya, Kondo Hirofumi, Tano Nobuo, WATANABE Masayoshi, Yun KyungSung
Принадлежит: DEXERIALS CORPORATION

A lubricant including an ionic liquid, which contains a conjugate acid (B) and a conjugate base (X) and is aprotic, wherein the conjugate acid contains a straight-chain hydrocarbon group having 10 or more carbon atoms, and wherein an acid that is a source of the conjugate base has a pKa in water of 0 or less. 1. A lubricant comprising:{'sup': +', '−, 'an ionic liquid, which contains a conjugate acid (B) and a conjugate base (X), and is aprotic,'}wherein the conjugate acid contains a straight-chain hydrocarbon group having 10 or more carbon atoms, andwherein an acid that is a source of the conjugate base has a pKa in water of 0 or less.2. The lubricant according to claim 1 ,wherein the conjugate acid is generated from a base containing a straight-chain hydrocarbon group having 10 or more carbon atoms, and the base is amine, amidine, guanidine, or imidazole.7. The lubricant according to claim 1 ,wherein the hydrocarbon group is an alkyl group.8. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant according to on the magnetic layer.'}9. An ionic liquid comprising:{'sup': '+', 'a conjugate acid (B); and'}{'sup': '−', 'a conjugate base (X),'}wherein the conjugate acid contains a straight-chain hydrocarbon group having 10 or more carbon atoms,wherein an acid that is a source of the conjugate base has a pKa in water of 0 or less, andwherein the ionic liquid is aprotic.10. The ionic liquid according to claim 9 ,wherein the conjugate acid is generated from a base containing a straight-chain hydrocarbon group having 10 or more carbon atoms, and the base is amine, amidine, guanidine, or imidazole.15. The ionic liquid according to claim 9 ,wherein the hydrocarbon group is an alkyl group. The present invention relates to an aprotic ionic liquid, a lubricant containing the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a ...

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Номер записи: 17
23-03-2017 дата публикации

AROMATIC COMPOUNDS BEARING HYDROXYL-SUBSTITUTED (PER)FLUOROPOLYETHER CHAINS

Номер: US20170081266A1
Автор: GUARDA Pier Antonio, PICOZZI Rosaldo, Valsecchi Roberto
Принадлежит:

Compounds [compounds (L)] comprising at least one monocyclic, polycyclic or polycondensed aromatic moiety [moiety (A*)], wherein: at least one carbon atom of moiety (A*) is substituted with a fluoropolyoxyalkene chain [chain (R)], said chain (R) comprising: a) a fluorocarbon segment having ether linkages in the main chain and b) at least one hydroxyl group and wherein: at least one other carbon atom of moiety (A*) is substituted with an electron-withdrawing group and mixtures thereof are herein disclosed. Disclosed are also a process for manufacturing compounds (L), a method for lubricating MRM comprising using compounds (L), a lubricant composition comprising one or more compounds (L) and a method for manufacturing a composition (C). 2. A compound (L) according to wherein at least two carbon atoms of moiety (A*) are substituted with a chain (R) claim 1 , each chain (R) comprising:a) a fluorocarbon segment having ether linkages in the main chain andb) at least one hydroxyl group.3. A compound (L) according to wherein claim 2 , in moiety (A*) claim 2 , all carbon atoms which do not bear chain (R) bear halogen atoms.4. A compound (L) according to wherein the halogen atom is fluorine.5. A compound (L) according to wherein moiety (A*) is selected from benzene claim 1 , biphenyl and naphthalene.6. A compound (L) according to wherein chain (R) comprises repeating units R° claim 1 , said repeating units being selected from:{'sub': '3', '(i) —CFXO—, wherein X is F or CF,'}{'sub': '3', '(ii) —CFXCFXO—, wherein X, equal or different at each occurrence, is F or CF, with the provision that at least one of X is —F,'}{'sub': 2', '2', '2, '(iii) —CFCFCWO—, wherein each of W, equal or different from each other, are F, Cl, H,'}{'sub': 2', '2', '2', '2, '(iv) —CFCFCFCFO—,'}{'sub': 2', 'j', 'f', '3', 'f', '2', '2', '2', '2', '2', '2', '2', '2', '3', '3', '1', '3, '(v) —(CF)—CFZ—O— wherein j is an integer from 0 to 3 and Z is a group of general formula —OR′T, wherein R′ is a ...

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Номер записи: 18
29-03-2018 дата публикации

FULLERENE DERIVATIVE AND LUBRICANT

Номер: US20180086771A1
Автор: IGARASHI Takeshi, Ueda Yasuyuki, Watanabe Kentaro
Принадлежит:

A fullerene derivative, used as a lubricant, includes, in a molecule: a fullerene backbone; and n pyrrolidine rings each being condensed to the fullerene backbone, each of the pyrrolidine rings including one aryl group including a group including m perfluoropolyether chains, “m” being an integer from 2 to 5 and “n” being an integer from 1 to 5. 1. A fullerene derivative comprising , in a molecule:a fullerene backbone; andn pyrrolidine rings each being condensed to the fullerene backbone,each of the pyrrolidine rings including one aryl group including a group including m perfluoropolyether chains, “m” being an integer from 2 to 5 and “n” being an integer from 1 to 5.3. The fullerene derivative according to claim 2 , wherein the “R” is an alkyl group or an aryl group whose carbon number is less than or equal to 24.4. The fullerene derivative according to claim 1 , wherein the fullerene backbone is C.5. The fullerene derivative according to claim 1 , wherein the group including perfluoropolyether chains includes at least a partial structure selected from —(CF)O— in which “x” is an integer from 1 to 5.6. The fullerene derivative according to claim 5 , wherein the group including perfluoropolyether chains includes a partial structure expressed by —(CFCFO)(CFO)— in which each of “y” and “z” is an integer from 1 to 50.7. The fullerene derivative according to claim 1 , wherein the group including perfluoropolyether chains is configured only by a perfluoropolyether structure.8. The fullerene derivative according to claim 1 , wherein the group including perfluoropolyether chains is a straight-chain.9. A lubricant comprising the fullerene derivative according to .10. The lubricant according to claim 9 , further comprising a perfluoropolyether chemical compound that does not include a fullerene backbone. This application is a continuation-in-part application filed under 35 U.S.C. 111(a) claiming the benefit under 35 U.S.C. 120 and 365(c) of PCT International Application No. PCT ...

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Номер записи: 19
21-03-2019 дата публикации

Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium

Номер: US20190084911A1
Автор: Daisuke Yagyu, Hiroyuki Tomita, Ichiro Ota, Katsumi Murofushi, Naoko Ito, Naoya Fukumoto, Ryuuta MIYASAKA, Shoko UETAKE, Tsuyoshi Kato, Yuta YAMAGUCHI
Принадлежит: Showa Denko KK

(In Formula (1), R1 is an end group including an organic group having at least one double bond or triple bond, R2 is a divalent linking group bonded to R1 by etheric oxygen, R3 is a perfluoropolyether chain, R4 is an end group having two or three polar groups with each polar group being bonded to different carbon atoms, and the carbon atoms, to which the polar groups are bonded, being bonded to each other via a linking group including carbon atoms to which the polar groups are not bonded.)

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Номер записи: 20
30-03-2017 дата публикации

IMAGE BEARER PROTECTIVE AGENT, PROTECTIVE LAYER FORMING DEVICE, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

Номер: US20170090399A1
Автор: AKIYAMA Sho, KOMITO Kenji, MIZUSAWA Hiroshi, Nakai Hiroshi, Yamamoto Kohsuke
Принадлежит:

An image bearer protective agent is provided. The image bearer protective agent includes a fatty acid metal salt and an inorganic lubricant. The inorganic lubricant includes a first inorganic lubricant having a tap density of from 0.30 to 0.8 g/cm. 1. An image bearer protective agent comprising:a fatty acid metal salt; and{'sup': '2', 'an inorganic lubricant including a first inorganic lubricant having a tap density of from 0.30 to 0.8 g/cm.'}2. The image bearer protective agent of claim 1 , wherein the inorganic lubricant further includes a second inorganic lubricant having a tap density of 0.25 g/cmor less.3. The image bearer protective agent of claim 1 , wherein the first inorganic lubricant includes boron nitride.4. The image bearer protective agent of claim 2 , wherein the second inorganic lubricant includes at least one member selected from the group consisting of mica claim 2 , boron nitride claim 2 , molybdenum disulfide claim 2 , tungsten disulfide claim 2 , talc claim 2 , kaolin claim 2 , montmorillonite claim 2 , calcium fluoride claim 2 , silica claim 2 , graphite claim 2 , polymethyl methacrylate resin claim 2 , polytetrafluoroethylene resin claim 2 , melamine formaldehyde claim 2 , organic molybdenum claim 2 , and silicone resin.5. The image bearer protective agent of claim 1 , wherein the fatty acid metal salt includes at least one member selected from the group consisting of zinc stearate claim 1 , calcium stearate claim 1 , and zinc laurate.6. The image bearer protective agent of claim 1 , wherein the image bearer protective agent has a density of from 1.11 to 1.190 g/cm.7. The image bearer protective agent of claim 1 , wherein a mass ratio of the fatty acid metal salt to the inorganic lubricant ranges from 70/30 to 98/2.8. The image bearer protective agent of claim 1 , wherein the image bearer protective agent is a compression-molded product of a mixture of the fatty acid metal salt and the inorganic lubricant.9. A protective layer forming device ...

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Номер записи: 21
12-04-2018 дата публикации

METHOD FOR CONTROLLING ELECTRICAL CONDUCTIVITY OF LUBRICATING OILS IN ELECTRIC VEHICLE POWERTRAINS

Номер: US20180100118A1
Автор: Carey James T., Flores-Torres Samuel, HOLT David G.L.
Принадлежит:

This disclosure relates to a method for minimizing the electrical drainage of charged electrical powertrain components, a method for controlling electrical conductivity over a lifetime of a lubricating oil in an electric vehicle powertrain lubricated with the lubricating oil, and a method for obtaining a desired electrical conductivity-to-dielectric constant ratio of a lubricating oil for an electric vehicle powertrain and powertrain components. The methods relate to controlling at least one of oxidation, deposit formation and corrosion over the service lifetime of the oil. The lubricating oil has a composition including a lubricating base oil as a major component, an additive package, as a minor component, and an effective amount of one or more conductivity agents, as a minor component. The lubricating oil has an electrical conductivity from 10 pS/m to 20,000 pS/m, a dielectric constant of 1.6 to 3.6, with a ratio of electrical conductivity-to-dielectric constant from 5 to 10,000. 1. A method for improving electrical performance in an electric vehicle powertrain by reducing electrical charge drainage of electrical energy storage devices and extending useful device lifetime , said method comprising providing to an electric vehicle powertrain a lubricating oil having a composition comprising: a lubricating base oil as a major component; an additive package , as a minor component comprising one or more lubricating oil additives; and an effective amount of one or more conductivity agents , as a minor component; wherein the lubricating oil has an electrical conductivity from about 10 pS/m to about 20 ,000 pS/m , a dielectric constant of about 1.6 to about 3.6 , and a ratio of electrical conductivity-to-dielectric constant from about 5 to less than about 1 ,000.2. The method of wherein the lubricating oil has an electrical conductivity from about 200 pS/m to about 1 claim 1 ,000 pS/m.3. The method of wherein the lubricating oil has a dielectrical constant from about 1.8 ...

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Номер записи: 22
12-04-2018 дата публикации

TRANSMISSION LUBRICATING OIL COMPOSITION

Номер: US20180100119A1
Автор: AOYAMA Kayoko
Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided is a lubricating oil composition for a transmission having excellent gear properties, clutch properties, cooling properties, and electric insulating properties. The lubricating oil composition for a transmission preparing by blending (A) a base oil, (B) a viscosity index improver having a mass average molecular weight of 10,000 to 50,000, and (C-1) a polyamide and/or (C-2) a polyol ester, the base oil (A) including (A-1) a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 10.0 mm/s. 1: A lubricating oil composition for a transmission , which is prepared by blending:(A) a base oil,(B) a viscosity index improver having a mass average molecular weight of 10,000 to 50,000, and(C-1) a polyamide, (C-2) a polyol ester, or both,{'sup': '2', 'wherein the base oil (A) comprises (A-1) a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 10.0 mm/s.'}2: The lubricating oil composition for a transmission according to claim 1 , wherein the component (A-1) is a poly-α-olefin claim 1 , a hydrogenated product of a poly-α-olefin claim 1 , or both.3: The lubricating oil composition for a transmission according to claim 1 , wherein a blending amount of the component (A-1) is from 1.0 to 10.0% by mass on the basis of a total amount of the composition.4: The lubricating oil composition for a transmission according to claim 1 , wherein the component (B) is a poly(meth)acrylate.5: The lubricating oil composition for a transmission according to claim 1 , wherein a blending amount of the component (B) is from 1.0 to 20.0% by mass on the basis of a total amount of the composition.6: The lubricating oil composition for a transmission according to claim 1 , wherein the composition comprises the component (C-1) which is a reaction product between an amine compound and a carboxylic acid compound.7: The lubricating oil composition for a transmission according to claim 1 , wherein the composition comprises the component (C-2) which is a reaction product between a ...

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Номер записи: 23
27-04-2017 дата публикации

Surface Protective Agent Composition, Electric Connection Structure Using Same, and Method for Manufacturing Electric Connection Structure

Номер: US20170117650A1
Автор: ARAI Takashi, Goto Kazuhiro, HASE Tatsuya, Hirai Hiroki, Hosokawa Takehiro, Komiya Kenichi, MIZOGUCHI Makoto, Nakashima Kazuo, NOMURA Hideki, Ono Junichi, Otsuka Takuji, SHITARA Yuji, YOSHIDA Koichi
Принадлежит:

To provide a surface protective agent composition that suppresses corrosion of members of different kinds of metals close to each other due to corrosion current between the metals of the members, and to provide an electric connection structure and a method for producing an electric connection structure using the same. The surface protective agent composition contains (a) a lubricant base oil; (b) a prescribed amount of at least one compound selected from the group consisting of particular phosphorus compounds and a metal salt or an amine salt thereof; and (c) a prescribed amount of an amide compound, and in the case where the component (b) does not contain the metal salt of the phosphorus compound, the surface protective agent composition further contains (d) a prescribed amount of a salicylate of a particular metal and/or a basic (or perbasic) salt thereof, and the electric connection structure containing a surface protective layer consisting of the surface protective agent composition. 137-. (canceled)39. The surface protective agent composition according to claim 38 , wherein the surface protective agent composition comprises (d) a salicylate of an alkali metal or an alkaline earth metal having an alkyl group or an alkenyl group having from 10 to 40 carbon atoms claim 38 , and/or a basic (or perbasic) salt thereof claim 38 , in an amount of from 0.005 to 3.0% by mass in terms of metal element based on the total amount of the composition.40. The surface protective agent composition according to claim 38 , wherein the surface protective agent composition further comprises (e) at least one metal deactivator having a nitrogen-containing heterocyclic ring in the molecule thereof claim 38 , in an amount of from 0.01 to 30% by mass based on the total amount of the composition.41. The surface protective agent composition according to claim 38 , wherein the lubricant base oil (a) has a kinematic viscosity at 100° C. of from 2 to 50 mm/s.42. The surface protective agent ...

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Номер записи: 24
03-05-2018 дата публикации

LUBRICANT COMPOSITIONS COMPRISING THIOPHOSPHATES AND THIOPHOSPHATE DERIVATIVES

Номер: US20180119046A1
Автор: DURBIN Kristine, Edwards David, McCovick Robert E.
Принадлежит:

The invention relates to lubricant additive compositions and lubricant compositions each comprising thiophosphates and thiophosphate derivatives, methods for making and using the same, including methods of lubricating machines and machine parts and methods of extending the useful life of elastomeric seal components of such machines. 2. The lubricant additive composition of claim 1 , wherein in X claim 1 , X claim 1 , M claim 1 , and Mare each S.3. The lubricant additive composition of claim 1 , wherein X claim 1 , X claim 1 , M claim 1 , and Mare each O.4. The lubricant additive composition of further comprising a detergent.5. The lubricant additive composition of claim 4 , wherein the detergent comprises a sulfonate or a phenate.6. The lubricant additive composition of claim 5 , wherein the sulfonate is selected from calcium sulfonate and magnesium sulfonate claim 5 , and wherein the phenate is selected from calcium phenate and magnesium phenate.8. The lubricant additive composition of claim 1 , wherein Xis R.13. The lubricant additive composition of claim 12 , wherein R claim 12 , R claim 12 , Rand Ris independently selected from hydrogen or C-Calkyl.14. The lubricant additive composition of claim 12 , wherein each Ris the same.15. The lubricant additive composition of claim 12 , wherein Yis C-Calkyl.16. The lubricant additive composition of claim 12 , wherein Yis —R—R—R.17. The lubricant additive composition of claim 12 , wherein Rand Rare both hydrogen.18. The lubricant additive composition of claim 12 , wherein Ris C-Calkyl.19. The lubricant additive composition of claim 12 , wherein Ris C-Calkyl.20. The lubricant additive composition of claim 12 , wherein Rand Ris C-Calkyl.21. The lubricant additive composition of claim 12 , wherein n=1.26. A lubricant composition comprising:a.) a base oil or a grease prepared therefrom; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'b.) a minor amount of the lubricant additive composition of ,'}wherein the base oil is ...

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Номер записи: 25
25-04-2019 дата публикации

Lubricant and srt material

Номер: US20190119596A1
Автор: Hiroshi Watanabe, Kazue Kurihara, Keita Sakakibara, Ken Nakano, Takaya Sato, Yoshinobu Tsujii
Принадлежит: KYOTO UNIVERSITY, Yokohama National University NUC

The invention provides an SRT material (lubricant) applicable to machine elements such as bearings, seals or guides (guiding mechanisms) that constitute a slide part of a machine. A lubricant and an SRT material are disclosed.

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Номер записи: 26
11-05-2017 дата публикации

IONIC LIQUID, LUBRICANT, AND MAGNETIC RECORDING MEDIUM

Номер: US20170130156A1
Автор: Hatsuda Kouki, ITO Makiya, Kondo Hirofumi, Tano Nobuo, WATANABE Masayoshi, Yun KyungSung
Принадлежит: DEXERIALS CORPORATION

A lubricant including: an ionic liquid, which includes a conjugate acid (B) and a conjugate base (X), and is protic, wherein the ionic liquid is represented by the following general formula (1), and wherein the conjugate base is a conjugate base of sulfonic acid, a conjugate base of sulfonimide, or a conjugate base of trisulfonylmethide: 3. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant according to on the magnetic layer.'} The present invention relates to a protic ionic liquid, a lubricant containing the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an actual film thickness of the lubricant is of a molecular order. Accordingly, it is not exaggeration to say that the most important thing for a thin film magnetic recording medium is to select a lubricant having excellent abrasion resistance in any environment.During a life of a magnetic recording medium, it is important that a lubricant is present on a surface of the medium without causing desorption, spin-off, and chemical deteriorations. Making the lubricant present on a surface of a medium is more difficult, as the surface of the thin film magnetic recording medium is smoother. This is because the thin film magnetic recording medium does not have an ability of replenishing a lubricant as with a coating-type magnetic recording medium.In the case where an adhesion force between a lubricant and a protective film disposed at a surface of a magnetic layer is weak, moreover, a film thickness of the lubricant is reduced during heating or sliding hence accelerating abrasion. Therefore ...

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Номер записи: 27
18-05-2017 дата публикации

Ionic liquid, lubricant, and magnetic recording medium

Номер: US20170137736A1
Автор: Hirofumi Kondo, Kouki Hatsuda, KyungSung Yun, Makiya Ito, Masayoshi Watanabe, Nobuo Tano
Принадлежит: Dexerials Corp

A lubricant including an ionic liquid, which includes a conjugate acid (B + ) and a conjugate base (X − ), and is protic, wherein the ionic liquid is represented by the following general formula (1): where R 1 and R 2 each represent a hydrogen atom or R 1 and R 2 form a benzene ring together with carbon atoms to which R 1 and R 2 are bonded, and R 3 represents a straight-chain hydrocarbon group having 10 or more carbon atoms in the general formula (1).

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Номер записи: 28
07-05-2020 дата публикации

TACTILE FILM, METHOD OF PRODUCING SAME, MOLDED ARTICLE, AND METHOD OF IMPROVING FINGER SLIDABILITY

Номер: US20200140774A1
Автор: HAYASHI Masaki
Принадлежит: Daicel Corporation

Prepared is a film including at least one surface having a friction property having A of not less than 0.01 and B of not greater than 0.6, A and B being values obtained from friction testing, wherein 1. A film comprising at least one surface having a friction property having A of not less than 0.01 and B of not greater than 0.6 , A and B being values obtained from friction testing , whereinthe friction testing includes measuring relative dynamic friction coefficients μ of the at least one surface at various moving speeds v (mm/s) of a contact probe, creating a plot of log(v), log(v) being a common logarithm of the moving speed, on a horizontal axis and μ on a vertical axis and performing linear fitting to obtain a straight line, andA is a slope of the straight line and B is an intercept of the straight line.2. The film according to claim 1 , wherein the film comprises a tactile layer formed of a cured product of a curable composition including a curable resin claim 1 , and the tactile layer is disposed on an outermost layer; and the surface of the tactile layer have a friction property having a slope A of not less than 0.015 and an intercept B of not greater than 0.15.3. The film according to claim 2 , wherein the curable resin comprises at least one selected from the group consisting of a (meth)acrylic polymer including a polymerizable group claim 2 , a urethane (meth)acrylate claim 2 , and a silicone (meth)acrylate.4. The film according to claim 2 , wherein the curable composition further comprises a cellulose ester.5. The film according to claim 2 , wherein the curable composition comprises a (meth)acrylic polymer including a polymerizable group claim 2 , a urethane (meth)acrylate claim 2 , a silicone (meth)acrylate claim 2 , and a cellulose ester.6. The film according to claim 2 , wherein the curable composition comprises no fine particles.7. The film according to claim 2 , wherein the tactile layer is laminated on a substrate layer formed of a transparent resin ...

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Номер записи: 29
01-06-2017 дата публикации

FLUOROPOLYETHER COMPOUND, LUBRICANT, AND MAGNETIC DISK

Номер: US20170152456A1
Автор: Kasai Haruo, SAGATA Ryosuke
Принадлежит: MORESCO CORPORATION

The disclosure provides a fluoropolyether compound represented by formula (1): 3. The lubricant according to claim 2 , further comprising a lubricant for magnetic disks.4. The lubricant according to claim 2 , wherein the lubricant according to and the lubricant for magnetic disks are contained at a weight ratio of 1:99 to 50:50.5. A magnetic disk comprising claim 3 , in this order claim 3 , a substrate claim 3 , and at least a recording layer and a protective layer claim 3 , and having a lubricant layer on the surface of the protective layer claim 3 , wherein the lubricant layer comprises the lubricant according to .6. A magnetic disk comprising claim 4 , in this order claim 4 , a substrate claim 4 , and at least a recording layer and a protective layer claim 4 , and having a lubricant layer on the surface of the protective layer claim 4 , wherein the lubricant layer comprises the lubricant according to . The present invention relates to a fluoropolyether compound, a lubricant, and a magnetic disk.With the increased recording density of hard disk drives, the distance between a magnetic disk serving as a recording medium and a head for recording and reproducing information has become almost nil as they approach contact with each other. The magnetic disk surface is provided with a carbon protective film and a lubricant film (lubricant layer) to diminish abrasion caused by contact with the head or sliding of the head thereon, and to prevent contamination of the magnetic disk surface. The two layers protect the surface of the magnetic disk. In particular, the lubricant layer provided on the top must have various properties, such as long-term stability, chemical resistance, friction properties, and heat resistance.Fluoropolyethers have often been used as lubricants for magnetic disks. However, fluoropolyether-based lubricants have low resistance to Lewis acid. Due to contact with the magnetic head, etc., the main chain is cut by alumina (AlO) contained in the magnetic ...

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Номер записи: 30
14-05-2020 дата публикации

(per)fluoropolyether polymers

Номер: US20200148820A1
Автор: Giovanni Fontana, Marco Galimberti, Roberto Valsecchi, Vito Tortelli
Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention relates to a novel process for the synthesis of (per)fluoropolyether polymers and to certain novel (per)fluoropolyether polymers. The present invention also relates to the use the (per)fluoropolyether polymers thus obtained, as intermediate compounds for the manufacture of further polymers suitable for use as lubricants, notably for magnetic recording media (MRM).

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Номер записи: 31
14-06-2018 дата публикации

LOW POUR POINT TRIMETHYLOLPROPANE ESTERS

Номер: US20180163151A1
Автор: Capuzzi Luigi, Digioia Francesca, SAGLIANO Angela
Принадлежит:

The present invention relates to polyol esters that are particularly suitable for use as insulating oils in electrical equipment where an effective cooling action is required, such as electrical transformers. In particular the invention relates to esters of trimethylolpropane with monocarboxylic acids of nine and/or ten carbon atoms, wherein the monocarboxylic acids of nine and/or ten carbon atoms comprise 5-15 mol % of branched acids and 85-95 mol % of linear acids with respect to the total moles of the monocarboxylic acids. 1. An ester of trimethylolpropane with monocarboxylic acids of nine and/or ten carbon atoms , said monocarboxylic acids of nine and/or ten carbon atoms comprising 5-15 mol % of a branched acid and 85-95 mol % of a linear acid with respect to the total moles of the said monocarboxylic acids.2. The ester according to having a kinematic viscosity at 40 ° C. of less than 35 mm/s.3. The ester according having a pour point according to standard ISO 3016 of below −40 ° C.4. The ester according to having a flash point according to standard ISO 2719 (Pensky-Martens claim 1 , closed cup procedure) of above 200° C.5. The ester according to wherein said branched acid is selected from 3 claim 1 ,5 claim 1 ,5-trimethylhexanoic acid claim 1 , 7-methyloctanoic acid claim 1 , 2 claim 1 ,2-dimethylheptanoic acid claim 1 , 3 claim 1 ,3-dimethylheptanoic acid claim 1 , 8-methylnonanoic acid claim 1 , 2 claim 1 ,2-dimethyloctanoic acid and mixtures thereof.6. The ester according to wherein said linear acid is pelargonic acid.7. The ester according to having an hydroxyl number equal to or less than 2 mg KOH/g.8. A process for the preparation of an ester according to comprising the esterification of trimethylolpropane with monocarboxylic acids of nine and / or ten carbon atoms comprising 5-15 mol % of a branched chain and 85-95 mol % of linear a chain.9. The process according to wherein said esterification is carried out in the absence of catalyst.10. A process for ...

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Номер записи: 32
14-06-2018 дата публикации

LIQUID COMPOSITION AND TERMINAL-FITTED ELECTRIC WIRE

Номер: US20180163154A1
Автор: HASE Tatsuya, Hirai Hiroki, Hosokawa Takehiro, MIZOGUCHI Makoto, Nakashima Kazuo, NOMURA Hideki, Ono Junichi, Ootsuka Takuji, Rachi Hironobu
Принадлежит:

A liquid composition which has an excellent coating property at room temperature and is retained on a surface to be coated after application on the surface, and a terminal-fitted electric wire having an increased corrosion resistance using the same. The liquid composition contains a high-consistency material, a low-viscosity liquid having a kinetic viscosity of 100 mm/s or lower measured at 40° C. in accordance with JIS K2283, and an adduct containing an acidic phosphate ester containing one or more kinds of compounds represented by General Formulae (1) and (2), and a metal, 1. A liquid composition comprising:a high-consistency material;{'sup': '2', 'a low-viscosity liquid having a kinetic viscosity of 100 mm/s or lower measured at 40° C. in accordance with JIS K2283; and'} an acidic phosphate ester comprising one or more kinds of compounds represented by General Formulae (1) and (2); and', [{'br': None, 'sub': 1', '2, 'P(═O)(—OR)(—OH)\u2003\u2003(1)'}, {'br': None, 'sub': 1', '2, 'P(═O)(—OR)(—OH)\u2003\u2003(2),'}], 'a metal,'}, {'sub': '1', 'where Rrepresents a hydrocarbon group having 4 to 30 carbon atoms.'}], 'an adduct comprising2. The liquid composition according to claim 1 , wherein the high-consistency material is a grease comprising:a base oil; anda thickening agent.3. The liquid composition according to claim 1 , wherein the low-viscosity liquid is a volatile low-viscosity liquid having volatility.4. The liquid composition according to claim 1 , wherein the low-viscosity liquid comprises at least one kind selected from a hydrocarbon organic solvent claim 1 , an ester organic solvent claim 1 , an ether organic solvent claim 1 , a ketone organic solvent claim 1 , a halogenated hydrocarbon organic solvent claim 1 , and a volatile oil.5. The liquid composition according to claim 1 , wherein a content of the low-viscosity liquid is within a range of 10 to 90 mass %.6. The liquid composition according to claim 1 , wherein Rhas one or more branched chain ...

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Номер записи: 33
22-06-2017 дата публикации

OIL COMPOSITION FOR ELECTRICAL DISCHARGE MACHINING

Номер: US20170173716A1
Автор: FUKUZAWA YASUSHI, HANAOKA Daiki, Kitamura Tomohiko, Yamashita Ken
Принадлежит:

An electrical discharge machining oil composition of the invention includes an organic acid metal salt and a base oil, in which the organic acid metal salt is an organic acid salt of a metal having an electronegativity on Pauling scale of 2 or less, and the present composition has a volume resistivity at 80 degrees C. of 2×10TΩ·m or more and a kinematic viscosity at 40 degrees C. in a range from 0.5 mm/s to 10 mm/s. 1. An electrical discharge machining oil composition comprising:a base oil; andan organic acid metal salt, whereinthe organic acid metal salt is a salt of an organic acid and a metal having an electronegativity on Pauling scale of 2 or less, and{'sup': −5', '2', '2, 'the composition has a volume resistivity at 80 degrees C. of 2×10TΩ·m or more and a kinematic viscosity at 40 degrees C. in a range from 0.5 mm/s to 10 mm/s.'}2. The electrical discharge machining oil composition according to claim 1 , wherein a content of the organic acid metal salt is in a range from 0.5 mass % to 15 mass % in a total amount of the composition.3. The electrical discharge machining oil composition according to claim 1 , wherein the organic acid is carboxylic acid.4. The electrical discharge machining oil composition according to claim 3 , wherein the carboxylic acid is monocarboxylic acid.5. The electrical discharge machining oil composition according to claim 1 , wherein the base oil has a kinematic viscosity at 40 degrees C. in a range from 0.4 mm/s to 9.9 mm/s.6. The electrical discharge machining oil composition according to claim 1 , wherein the metal of the organic acid metal salt is at least one of Zn claim 1 , Ba claim 1 , Ca claim 1 , Na and K.7. The electrical discharge machining oil composition according to claim 1 , further comprising a thickener having a kinematic viscosity at 100 degrees C. in a range from 10 mm/s to 10 claim 1 ,000 mm/s.8. The electrical discharge machining oil composition according to claim 7 , wherein a content of the thickener is in a ...

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Номер записи: 34
28-06-2018 дата публикации

MAGNETORHEOLOGICAL FLUID COMPOSITION AND VIBRATION DAMPING DEVICE USING SAME

Номер: US20180182521A1
Автор: ENDO Daijiro, Komori Kentaro, Sakanoue Shuichi, YAMAMOTO Seiichiro
Принадлежит:

This vibration damping device () includes a magnetorheological fluid composition in a cylinder (). The magnetorheological fluid composition includes magnetic particles; a dispersant having the magnetic particles dispersed therein; and a friction modifier. The friction modifier is an amine-based additive having a hydrocarbon chain having 14 to 22 carbon atoms, preferably an alkyl chain or an alkenyl chain. The content of the friction modifier is 0.1 to 5 mass %. 1. A magnetorheological fluid composition comprising:magnetic particles;a dispersant having the magnetic particles dispersed in the dispersant; anda friction modifier,wherein the friction modifier is an amine-based additive having a hydrocarbon chain having 14 to 22 carbon atoms,wherein the content of the friction modifier is 0.1 to 5 mass % relative to a total amount of the magnetorheological fluid composition.2. A vibration damping device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a cylinder filled with the magnetorheological fluid composition according to ;'}a piston rod inserted through the cylinder;a piston connected to the piston rod and disposed in the cylinder to be slidable in an axial direction;a first fluid chamber and a second fluid chamber defined in the cylinder by the piston and each containing the magnetorheological fluid composition;a communication hole formed in the piston in such a way that the first fluid chamber and the second fluid chamber communicate with each other through the communication hole; andan electromagnetic coil configured to apply a magnetic field to the magnetorheological fluid composition flowing in the communication hole. The present invention relates to a magnetorheological fluid composition and a vibration damping device using the same.As a vibration damping device, a variable damping force damper has been known which uses a magnetorheological fluid (MRF) composition to change its apparent viscosity depending on the strength of a magnetic field ...

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Номер записи: 35
19-07-2018 дата публикации

COMPOSITION FOR SOLID LUBRICATING COATING, THREADED CONNECTION FOR PIPE OR TUBE INCLUDING THE SOLID LUBRICATING COATING FORMED FROM THE COMPOSITION, AND METHOD OF PRODUCING THE THREADED CONNECTION

Номер: US20180201868A1
Автор: Goto Kunio
Принадлежит:

This invention provides a threaded connection for pipe or tube that has a non-sticky surface and that suppresses the occurrence of rust and exhibits excellent galling resistance and airtightness even in an extremely low temperature environment without using compound grease, a method of producing the same, and a composition for forming a solid lubricating coating on the threaded connection. A solid lubricating coating () formed from a composition containing a binder, a fluorine addition agent, a solid lubricant and a rust proof addition agent is coated as a topmost surface treatment coating on a contact surface of at least one of a pin and a box. Even when exposed to an extremely low temperature environment, the solid lubricating coating () can maintain adhesiveness and exhibit a lubricating function, can suppress the occurrence of galling of a threaded connection, and can also secure airtightness after fastening. 2. The composition according to claim 1 , comprising:60 to 80% by mass of the binder,8 to 18% by mass of the fluorine addition agent,5 to 15% by mass of the solid lubricant, and2 to 10% by mass of the rust proof addition agent.3. The composition according to claim 1 , further comprising 2 to 15% by mass of talc.414-. (canceled)15. The composition according to claim 2 , further comprising 2 to 15% by mass of talc.16. The composition according to claim 3 , wherein{'sup': '2', 'a particle size of the talc is 1 to 12 μm, and a specific surface area of the talc is 4 to 12 m/g.'}17. The composition according to claim 15 , wherein{'sup': '2', 'a particle size of the talc is 1 to 12 μm, and a specific surface area of the talc is 4 to 12 m/g.'}18. A threaded connection for pipe or tube comprising a pin and a box claim 15 , whereineach of the pin and the box comprises a contact surface including a mutually contacting portion, and the threaded connection for pipe or tube comprises a solid lubricating coating on the contact surface of at least one of the pin and the ...

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Номер записи: 36
25-06-2020 дата публикации

Transformer Oil Basestock and Transformer Oil Composition Comprising the Same

Номер: US20200199474A1
Автор: Andrew P. Broenen, Caterina T.H. Tran, Daniel X. Bien, Ronald R. Hill, Jr., Shaival R. Mehta
Принадлежит: ExxonMobil Chemical Patents Inc

A transformer oil basestock is disclosed that includes at least 99 wt % of naphthenes and paraffins, based on the total weight of the transformer oil basestock, wherein the weight ratio of naphthenes to paraffins is at least 1, as measured by GC-MS, and wherein the paraffins consist essentially of isoparaffins, as determined by GC-FID. In addition, a transformer oil composition is disclosed that includes the transformer oil basestock, an anti-gassing agent and an antioxidant.

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Номер записи: 37
04-07-2019 дата публикации

FULLERENE DERIVATIVE AND LUBRICANT

Номер: US20190203140A1
Автор: IGARASHI Takeshi, Ueda Yasuyuki, Watanabe Kentaro
Принадлежит:

One embodiment of the present invention is a fullerene derivative represented by general formula (1) 2. The fullerene derivative according to claim 1 , wherein the fullerene backbone is a Cbackbone.3. The fullerene derivative according to claim 1 , whereinat least one R that is bonded to a carbon atom at an α-position of a carbonyl group, from among the 2m R, is a hydrocarbon group or an alkoxycarbonyl group including a divalent perfluoropolyether group.6. The fullerene derivative according to claim 1 , wherein the divalent perfluoropolyether group is a straight chain.7. The fullerene derivative according to claim 1 , wherein at least one of the two A and the 2m R includes a non-binding end group that is an aryl group.8. The fullerene derivative according to claim 7 , wherein the two A have non-binding end groups that are aryl groups.9. The fullerene derivative according to claim 1 , whereinm is greater than or equal to 2; andat least one R that is bonded to a carbon atom at a β-position of a carbonyl group, from among the 2m R, is an alkoxycarbonyl group including a divalent perfluoropolyether group.13. A lubricant including the fullerene derivative according to . The present invention relates to a fullerene derivative and a lubricant.Perfluoropolyether compounds have excellent heat resistance, chemical resistance, and oxidation resistance, and also have a high viscosity index such that they have relatively stable (unchanging) fluidity (viscosity) across a wide temperature range from low temperatures to high temperatures and exhibit good lubricity. Further, perfluoropolyether compounds are nonflammable, have almost no impact on polymer-based materials such as rubber and plastics, and have other characteristics such as low vapor pressure and evaporation loss, low surface tension, and high electrical insulation.As described above, perfluoropolyether compounds are known to exhibit high performance as a lubricant across an extensively wide range of applications. As ...

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Номер записи: 38
02-08-2018 дата публикации

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

Номер: US20180215980A1
Автор: ARAI Takeaki, FUKUSHIMA Masato, MITSUOKA Hiroaki, Shirakawa Daisuke, Takagi Hirokazu, Tasaka Mai
Принадлежит: Asahi Glass Company, Limited

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The working fluid has a low global warming potential and can replace R410A. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point of at least −100° C. and at most 0° C. 1. A composition for a heat cycle system , comprising:a working fluid for heat cycle containing difluoromethane as a saturated fluorinated hydrocarbon compound, trifluoroethylene and 2,3,3,3-tetrafluoropropene as unsaturated fluorinated hydrocarbon compounds, and optionally at least one other unsaturated fluorinated hydrocarbon compound containing at least one carbon-carbon unsaturated bond and represented by formula (I), and {'br': None, 'sub': x', 'y', 'z, 'CFR\u2003\u2003(I)'}, 'a refrigerant oil having a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point temperature of at least −100° C. and at most 0° C.wherein R is H or Cl, x is an integer of from 2 to 6, y is an integer of from 1 to 12, and z is an integer of from 0 to 11, provided that 2x≥y+z≥2.2. The composition according to claim 1 , wherein the working fluid contains the other unsaturated fluorinated hydrocarbon compound of the formula (I) with x being 2 or 3.3. The composition according to claim 2 , wherein the other unsaturated fluorinated hydrocarbon compound is at least one selected from the group consisting of 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 ...

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Номер записи: 39
09-07-2020 дата публикации

Ionic Liquid, Lubricant, and Magnetic Recording Medium

Номер: US20200216773A1
Автор: Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo, Yun KyungSung
Принадлежит:

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid including 2 or more cations in a molecule of the conjugate acid, wherein the conjugate acid includes a monovalent group including a straight-chain hydrocarbon group having 6 or more carbon atoms, and an acid that is a source of the conjugate base has a pKa in acetonitrile of 10 or less. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)10. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer disposed on or above the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00008', 'claim 8'}, 'the lubricant according to disposed on or above the magnetic layer.'}11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled) The present invention relates to an ionic liquid having a dication structure, a lubricant including the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an actual film thickness of the lubricant is of a molecular order. Accordingly, it is not exaggeration to say that the most important thing for a thin film magnetic recording medium is to select a lubricant giving excellent abrasion resistance in any environment.During a life of a magnetic recording medium, it is important that a lubricant is present on a surface of the medium without causing desorption, spin-off, and chemical deteriorations. Making the lubricant present on a surface of a medium is more difficult, as the surface of the thin film magnetic recording medium is smoother. This is because the thin film magnetic recording medium does not have an ability of replenishing a lubricant as with a ...

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Номер записи: 40
23-08-2018 дата публикации

Ionic Liquid, Lubricant, and Magnetic Recording Medium

Номер: US20180237713A1
Автор: Baghel Pankaj, Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo
Принадлежит:

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid has a group including a straight-chain hydrocarbon group having 6 or more carbon atoms, a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less, and solubility of the ionic liquid to CF(CHF)CFCFis 0.1 parts by mass relative to 100 parts by mass of CF(CHF)CFCF. 1. A lubricant comprising:an ionic liquid including a conjugate base and a conjugate acid,wherein the conjugate acid has a group including a straight-chain hydrocarbon group having 6 or more carbon atoms,a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less, and{'sub': 3', '2', '2', '3', '3', '2', '2', '3, 'solubility of the ionic liquid to CF(CHF)CFCFis 0.1 parts by mass or greater relative to 100 parts by mass of CF(CHF)CFCF.'}4. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer disposed on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant according to , disposed on the magnetic layer.'}5. An ionic liquid comprising:a conjugate base; anda conjugate acid,wherein the conjugate acid has a group including a straight-chain hydrocarbon group having 6 or more carbon atoms,a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less, and{'sub': 3', '2', '2', '3', '3', '2', '2', '3, 'solubility of the ionic liquid to CF(CHF)CFCFis 0.1 parts by mass or greater relative to 100 parts by mass of CF(CHF)CFCF.'} The present invention relates to an ionic liquid, a lubricant including the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an ...

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Номер записи: 41
23-08-2018 дата публикации

DRIVE DEVICE, IMAGE FORMING APPARATUS, AND GREASE COMPOSITION

Номер: US20180237723A1
Автор: ISHIDA Masahiro, Kabata Toshiyuki, MATSUDA Naoki, SEO Kumiko, TANAKA Teruyoshi
Принадлежит:

A drive device includes a plurality of gears; and a grease composition that is held on a tooth flank of at least one gear of the gears. The at least one gear is made of a resin. The grease composition contains a hydrocarbon base oil, lithium soap serving as a thickener, and olefin resin powder. A weight ratio between the hydrocarbon base oil and the lithium soap in the grease composition is in a range of 94.5:5.5 to 96.0:4.0. A consistency of the grease composition is in a range of 360 to 400. 1. A grease composition comprising:a hydrocarbon base oil;a thickener including lithium soap; anda solid lubricant including an olefin resin powder, whereina weight ratio between the hydrocarbon base oil and the lithium soap is in a range of 94.5:5.5 to 96.0:4.0, anda consistency of the grease composition is in a range of 360 to 400 as measured by Japanese Industrial Standard K2220.2. The grease composition according to claim 1 , wherein a kinetic viscosity of the hydrocarbon base oil is equal to or smaller than 20 mm/s at 40° C.3. The grease composition according to further comprising a styrene thickener.4. The grease composition according to claim 1 , wherein the olefin resin powder includes a polyethylene powder.5. The grease composition according to claim 1 , wherein the olefin resin powder is substantially insoluble in the hydrocarbon base oil.6. The grease composition according to claim 1 , wherein the olefin resin powder is dispersed in the hydrocarbon base oil as solid particles. The present application is a divisional application of U.S. application Ser. No. 14/717,403, filed on May 20, 2015, which claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2014-111495 filed in Japan on May 29, 2014 and Japanese Patent Application No. 2015-045808 filed in Japan on Mar. 9, 2015.The present invention relates to a drive device and an image forming apparatus including a grease composition, and the grease composition used for the ...

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Номер записи: 42
30-07-2020 дата публикации

Lubricant transformable from solid to semi-solid

Номер: US20200239807A1
Автор: II Kenneth A. Budke, Todd Whiting
Принадлежит: Best Green Answers LLC

A lubricant composition includes a mixture of grease and wax formed into a block which is solid at atmospheric pressure and temperatures up to 150° F., and which transforms into a semi-solid under mechanical loading. The mixture is formed with 5-25% of melted wax. The block may be coated to form a shell to remain solid at elevated temperatures. The block may include other additives. The grease block is suitable for use in various applications, including on a 5th wheel trailer hitch plate.

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Номер записи: 43
08-09-2016 дата публикации

LOW PROFILE MULTIDENTATE LUBRICANTS FOR USE AT SUB-NANOMETER THICKNESSES IN MAGNETIC MEDIA

Номер: US20160260452A1
Автор: Pathem Bala K.
Принадлежит:

In one embodiment, a multidentate perfluoropolyether (PFPE) lubricant has the formula S-S-S-S-S-S-S, where each Sincludes at least one perfluoroethyl ether unit, Sis a linker segment, and each Sand Sinclude at least one functional group configured to attach to a surface. In another embodiment, a multi dentate PFPE lubricant has the formula S-S-S-S-S-S-S, where each S, S, and Sinclude at least one perfluoroethyl ether unit with the proviso that Shas a different number of perfluoroethyl ether units than at least one of Soand S, and each Sand Sinclude at least one functional group configured to attach to a surface. 1. A lubricant , comprising: {'br': None, 'sub': e', 'o', 'i', 'L', 'i', 'o', 'e, 'S-S-S-S-S-S-S,'}, 'a multidentate perfluoropolyether having the formula{'sub': 'o', 'wherein each Sincludes at least one perfluoroethyl ether unit,'}{'sub': 'L', 'wherein Sis a linker segment,'}{'sub': e', 'i, 'wherein Sand Seach include at least one functional group configured to attach to a surface.'}2. The lubricant as recited in claim 1 , where each Scomprises at least two perfluoroethyl ether units.3. The lubricant as recited in claim 1 , wherein the at least one functional group is selected from the group consisting of: a hydroxyl group claim 1 , a piperonyl group claim 1 , an amine group claim 1 , a carboxylic acid claim 1 , a phosphazene group claim 1 , and combinations thereof.4. The lubricant as recited in claim 1 , wherein each Scomprises at least two functional groups configured to attach to a surface claim 1 , the at least two functional groups being independently selected from the group consisting of: a hydroxyl group claim 1 , a piperonyl group claim 1 , an amine group claim 1 , a carboxylic acid claim 1 , a phosphazene group claim 1 , and combinations thereof.5. The lubricant as recited in claim 1 , wherein each Scomprises one functional group configured to attach to a surface claim 1 , the functional group being selected from the group consisting of: a ...

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Номер записи: 44
06-09-2018 дата публикации

Ionic Liquid, Lubricating Agent, and Magnetic Recording Medium

Номер: US20180251468A1
Автор: Hatsuda Kouki, ITO Makiya, Kondo Hirofumi, Tano Nobuo, WATANABE Masayoshi, Yun KyungSung
Принадлежит:

A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more. 129-. (canceled)31. The ionic liquid according to claim 30 , wherein the ionic liquid has an exothermic peak temperature determined by a differential thermal analysis (DTA) measurement of 370° C. or higher.32. The ionic liquid according to claim 30 , wherein the hydrocarbon group is an alkyl group.35. The ionic liquid according to claim 30 , wherein the number of carbon atoms in the linear hydrocarbon group is 10 or more and 25 or less.37. The ionic liquid according to claim 36 , wherein the ionic liquid has an exothermic peak temperature determined by a differential thermal analysis (DTA) measurement of 370° C. or higher.40. The ionic liquid according to claim 36 , wherein the number of carbon atoms in the linear hydrocarbon group is 10 or more and 25 or less.41. A lubricating agent claim 36 , comprising;{'claim-ref': {'@idref': 'CLM-00030', 'claim 30'}, 'the ionic liquid according to .'}42. A lubricating agent claim 36 , comprising;{'claim-ref': {'@idref': 'CLM-00036', 'claim 36'}, 'the ionic liquid according to .'}44. The lubricating agent according to claim 43 , wherein the ionic liquid has an exothermic peak temperature determined by a differential thermal analysis (DTA) measurement of 370° C. or higher.45. The lubricating agent according to claim 43 , wherein the hydrocarbon group is an alkyl group.48. The lubricating agent according to claim 47 , wherein the ionic liquid has an exothermic peak temperature determined by a differential thermal analysis (DTA) measurement of 370° C. or higher. The present invention relates to an ionic liquid comprised of a Bronsted acid and a Bronsted base, a lubricating agent containing the ionic liquid, and ...

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Номер записи: 45
15-08-2019 дата публикации

Composition for an electric vehicle

Номер: US20190249102A1
Автор: Didier Martin, Philippe CHINA
Принадлежит: Total Marketing Services SA

The use of a lubricant composition in order to cool and/or lubricate the engine of an electric vehicle and the different parts thereof, particularly moving parts, is disclosed. In particular, the use of a lubricant composition includes at least one polyalkylene glycol.

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Номер записи: 46
14-09-2017 дата публикации

CYCLOPHOSPHAZENE DERIVATIVES

Номер: US20170260327A1
Автор: Mutta Fabrizio, Valsecchi Roberto
Принадлежит:

The present invention relates to a phosphazene compound [compound (L)] comprising a cyclophosphazene central core wherein each phosphorus atom of said core bears a substituent independently selected from: a) a chain (A), said chain (A) comprising a (per)fluoropolyether chain [chain (R)], one or more aromatic or heteroaromatic moieties [moiety/ies (Ar)] and, optionally, one or more hydroxy groups and b) a chain (B), said chain (B) comprising a (per)fluoropolyether chain [chain (R)] and one or more hydroxy groups with the proviso that at least one phosphorous atom of the central core is substituted with chain (A) and to mixtures of compounds (L). The invention further relates to methods for preparing compounds (L), to lubricant compositions comprising compounds (L) and to methods for lubricating magnetic recording media comprising applying a compound (L) or a lubricant compositions containing them to the surface of said medium. 1. A compound (L) comprising a cyclophosphazene central core wherein each phosphorus atom of said core bears substituents independently selected from:{'sub': 'f', 'sup': 'm', 'a) a chain (A), said chain (A) comprising a (per)fluoropolyether chain [chain (R)], one or more aromatic or heteroaromatic moieties [moiety/ies (Ar)] and, optionally, one or more hydroxy groups and'}{'sub': 'f', 'b) a chain (B), said chain (B) comprising a (per)fluoropolyether chain [chain (R)] and one or more hydroxy groups;'}with the proviso that at least one phosphorous atom of the central core is substituted with chain (A).2. The compound according to wherein chain (R) in chains (A) and (B) is a fully or partially fluorinated polyoxyalkylene chain that comprises repeating units R claim 1 , said repeating units being independently selected from the group consisting of:{'sub': '3', '(i) —CFXO—, wherein X is F or CF,'}{'sub': '3', '(ii) —CFXCFXO—, wherein X, equal or different at each occurrence, is F or CF, with the proviso that at least one of X is —F,'}{'sub': 2', '2 ...

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Номер записи: 47
14-09-2017 дата публикации

FLUOROPOLYETHER COMPOUND, LUBRICANT, MAGNETIC DISK, AND METHOD FOR PRODUCING SAME

Номер: US20170260472A1
Автор: Kasai Haruo, SAGATA Ryosuke, SHIMIZU Tsuyoshi
Принадлежит: MORESCO CORPORATION

Disclosed is a fluoropolyether compound comprising a Caliphatic hydrocarbon chain present in the middle of the fluoropolyether compound and at least two perfluoropolyethers. 1. A fluoropolyether compound comprising (i) a Caliphatic hydrocarbon chain present in the middle of the fluoropolyether compound and (ii) at least two perfluoropolyethers ,{'sub': '4-10', 'each perfluoropolyether being ether-linked to the Caliphatic hydrocarbon chain,'}the aliphatic hydrocarbon chain having at least one hydroxyl group,{'sub': 2', '2', '2', '2', '2', '2', '2', 'm', '2', '2', '6', '4, 'sup': '1', 'the at least two perfluoropolyethers having, at respective non-hydrocarbon chain terminals, at least one polar group selected from the group consisting of —OH, —OCHCH(OH)CHOH, —OCHCH(OH)CHOCHCH(OH)CHOH, —O(CH)OH, and —OCH(OH)CHCH—OCH—R,'}{'sup': '1', 'sub': '1-4', 'wherein m is an integer of 2 to 8, and Rrepresents hydrogen, Calkoxy, amino, or an amide residue.'}2. The fluoropolyether compound according to wherein the aliphatic hydrocarbon chain has 8 carbon atoms.3. The fluoropolyether compound according to which is at least one member selected from the group consisting of{'sub': 2', '2', '2', '2', '2', '2', '2', '2', 'z', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'z', '2', '2', '2', '2', '2, 'HOCHCH(OH)CHOCHCFCFO(CFCFCFO)CFCFCH—OCHCH(OH)CHCHCHCHCH(OH)CHO—CHCFCFO(CFCFCFO)CFCFCHOCHCH(OH)CHOH,'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'w', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'w', '2', '2', '2', '2', '2', '2, 'HOCHCH(OH)CHOCHCFCFCFO(CFCFCFCFO)CFCFCFCH—OCHCH(OH)CHCHCHCHCH(OH)CHO—CHCFCFCFO(CFCFCFCFO)CFCFCFCHOCHCH(OH)CHOH,'}{'sub': 2', '2', '2', '2', '2', '2', 'z', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'z', '2', '2', '2, 'HOCHCFCFO(CFCFCFO)CFCFCH—OCHCH(OH)CHCHCHCHCH(OH)CHO—CHCFCFO(CFCFCFO)CFCFCHOH, and'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2', 'w', ...

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Номер записи: 48
20-09-2018 дата публикации

MAGNETIC DISK AND MANUFACTURING METHOD THEREOF

Номер: US20180268853A1
Автор: Hamakubo Katsushi, Itoh Kae, Shimokawa Koichi
Принадлежит:

A magnetic disk of is provided, the magnetic disk having at least a magnetic layer, a carbon protective layer, and a lubrication layer sequentially provided on a substrate. In an embodiment, the lubrication layer a film formed by a lubricant having a perfluoropolyether compound A having a perfluoropolyether main chain in the structure and also having a hydroxyl group at the end and a compound C obtained from a reaction between a compound B expressed by: [Chemical formula 1] CF(—O—CF)m-(O—CF)n-OCF[m and n in the formula are natural numbers.] and aluminum oxide. 1. A magnetic disk having at least a magnetic layer , a protective layer , and a lubrication layer sequentially provided on a substrate , characterized in that said lubrication layer is a film formed by a lubricant that contains two types of compounds having a perfluoropolyether main chain in the structure , a molecular weight distribution of the two types in total being within a range of 1 to 1.2 , the two types of compounds including a compound a having a hydroxyl group at the end and a compound b having a number average molecular weight smaller than the number average molecular weight of the compound a and not more than 1500 , and a content of the compound b in the two types of compounds being not more than 10%.2. The magnetic disk according to claim 1 , wherein the number average molecular weight of said compound a is within a range of 1000 to 10000.3. A magnetic disk having at least a magnetic layer claim 1 , a protective layer claim 1 , and a lubrication layer sequentially provided on a substrate claim 1 , characterized in that said lubrication layer is a film formed by a lubricant containing a perfluoropolyether compound a having a perfluoropolyether main chain in the structure and a hydroxyl group at the end and a compound b with the number average molecular weight not more than 1500 having a perfluoropolyether main chain in the structure and an aromatic group at both ends of the hydroxyl group and a ...

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Номер записи: 49
29-08-2019 дата публикации

USE OF BIODEGRADABLE HYDROCARBON FLUIDS IN ELECTRIC VEHICLES

Номер: US20190264121A1
Автор: CHINA Philippe
Принадлежит: TOTAL MARKETING SERVICES

The invention is the use, in an electric vehicle, of a fluid having a boiling point in the range of from 200° C. to 400° C. and a boiling range below 80° C., said fluid comprising more than 95% by weight isoparaffins and less than 3% by weight of naphthens, a biocarbon content of at least 95% by weight, containing less than 100 ppm by weight aromatics. 119.-. (canceled)20. Method for cooling a motor and/or a power electronics and/or a rotor and/or a stator of a motor and/or a battery of an electric or a hybrid vehicle , said method comprising:using a fluid having a boiling point in the range of from 200° C. to 400° C. and a boiling range below 80° C., said fluid comprising more than 95% by weight isoparaffins and less than 3% by weight of naphthens, a biocarbon content of at least 95% by weight, containing less than 100 ppm by weight aromatics.21. Method for lubricating a motor and/or bearings between rotor and stator and/or a reducer of a motor and/or a transmission of an electric or a hybrid vehicle , said method comprising:using a fluid having a boiling point in the range of from 200° C. to 400° C. and a boiling range below 80° C., said fluid comprising more than 95% by weight isoparaffins and less than 3% by weight of naphthens, a biocarbon content of at least 95% by weight, containing less than 100 ppm by weight aromatics.22. Method of claim 20 , comprising:using the fluid in the electric vehicle.23. Method of claim 21 , comprising:using the fluid in the electric vehicle.24. Method of claim 20 , comprising:using the fluid for cooling the battery.25. Method of claim 20 , comprising:using the fluid for cooling and lubricating the motor.26. Method of claim 20 , comprising:using the fluid for cooling the motor and for lubricating the transmission.27. Method of claim 20 , wherein the fluid has a boiling point in the range of from 220° C. to 340° C.28. Method of claim 20 , wherein the boiling range of the fluid is 240° C.-275° C. or 250° C.-295° C. or 285° C.-335° C. ...

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Номер записи: 50
06-10-2016 дата публикации

METHOD FOR FORMING ANTI STICTION COATING AND ANTI STICTION COATING THEREOF

Номер: US20160289066A1
Автор: Gelder Roland V.
Принадлежит:

A method for forming an anti-stiction coating on a surface of a semiconductor device is provided. Using atomic layer deposition (ALD) processes to activate surface prior to anti-stiction coating deposition, anti-stiction coating having strong chemical bonding to the surface is obtained. 1. A method for forming an anti-stiction coating on a surface of a semiconductor device , comprising:providing the surface of the semiconductor device to a first reaction chamber;{'sub': '2', 'performing an atomic layer deposition (ALD) process to the semiconductor device, wherein the atomic layer deposition process is performed with alternating reaction cycles of trimethylaluminum (TMA) and water (HO) for depositing an aluminum oxide film on the surface of the semiconductor device in the first reaction chamber;'}terminating the ALD process with one TMA cycle to create a reactive surface within the first reaction chamber;transferring the semiconductor device from the first reaction chamber to a second reaction chamber under a controlled environment;providing at least one fluorinated species to the second reaction chamber; andforming an anti-stiction coating on the surface of the semiconductor device through reactions of the fluorinated species and TMA.2. The method as claimed in claim 1 , wherein the semiconductor device is a MEMS device or a micromirror array.3. The method as claimed in claim 1 , wherein the fluorinated species includes a fluorinated alkanoic acid having at least one carboxyl group (—COOH).4. The method as claimed in claim 3 , wherein the fluorinated species is perfluorodecanoic acid (PFDA).5. The method as claimed in claim 3 , wherein forming an anti-stiction coating on the surface of the semiconductor device through reactions of the fluorinated species and TMA comprises reacting the at least one carboxyl group of the fluorinated alkanoic acid of the fluorinated species with methyl groups on the reactive surface from TMA to establish a chemical bonding there- ...

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Номер записи: 51
05-10-2017 дата публикации

PRESSURE MEDIUM OIL AND METHOD FOR USING SAID PRESSURE MEDIUM OIL

Номер: US20170283730A1
Автор: Aoki Shinji, Kobessho Masahiro, MURATA Keizo
Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided are a pressure medium oil, containing a Group-14 element-containing organic compound selected from an organic germanium compound, an organic tin compound, and an organic lead compound, and a method for using a pressure medium oil, which includes applying a pressure to a substance via the pressure medium oil. The pressure medium oil does not solidify even under an ultrahigh pressure of more than 3.7 GPa at room temperature (25° C.) and has a low pour point, and hardly dissolves a conductive paste. 1. A pressure medium oil comprising a Group-14 element-containing organic compound selected from an organic germanium compound , an organic tin compound , and an organic lead compound.2. (canceled)3. The pressure medium oil according to claim 1 , wherein the kinematic viscosity at 40° C. of the Group-14 element-containing organic compound is 20 mm/s or less.4. The pressure medium oil according to claim 1 , wherein the pour point of the Group-14 element-containing organic compound is −40° C. or lower.5. The pressure medium oil according to claim 1 , wherein the content of the Group-14 element-containing organic compound is from 80 to 100% by mass claim 1 , based on the total amount of the pressure medium oil.7. The pressure medium oil according to claim 6 , wherein each of R claim 6 , R claim 6 , R claim 6 , and Rin the general formula (1) independently represents a hydrogen atom claim 6 , an alkyl group having 1 to 30 carbon atoms claim 6 , or an alkoxy group having 1 to 30 carbon atoms.910-. (canceled)12. (canceled)1415-. (canceled)17. (canceled)1920-. (canceled)22. (canceled)24. The pressure medium oil according to claim 1 , which has a solidification pressure at 25° C. of more than 3.7 GPa.25. A method for using a pressure medium oil claim 1 , which comprises applying a pressure to a substance via the pressure medium oil of . The present invention relates to a pressure medium oil, and a method for using the pressure medium oil.Studies to find out new functions ...

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Номер записи: 52
04-10-2018 дата публикации

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

Номер: US20180282602A1
Автор: ARAI Takeaki, FUKUSHIMA Masato, MITSUOKA Hiroaki, Shirakawa Daisuke, Takagi Hirokazu, Tasaka Mai
Принадлежит: Asahi Glass Company, Limited

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A, and a heat cycle system employing the composition. 2. The composition for a heat cycle system according to claim 1 , wherein the compound of the formula (I) wherein x is 2 or 3 is contained.3. The composition for a heat cycle system according to claim 2 , wherein as the unsaturated fluorinated hydrocarbon compound claim 2 , at least one member selected from the group consisting of trifluoroethylene claim 2 , 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , 1 claim 2 ,2-difluoroethylene claim 2 , 2-fluoropropene claim 2 , 1 claim 2 ,1 claim 2 ,2-trifluoropropene claim 2 , (E)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (Z)-1 claim 2 ,2 claim 2 ,3 claim 2 ,3 claim 2 ,3-pentafluoropropene claim 2 , (E)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , (Z)-1 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene and 3 claim 2 ,3 claim 2 ,3-trifluoropropene is contained.4. The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a saturated fluorinated hydrocarbon compound.5. The composition for a heat cycle system according to claim 4 , wherein as the saturated fluorinated hydrocarbon compound claim 4 , at least one member selected from the group consisting of trifluoromethane claim 4 , difluoromethane claim 4 , difluoroethane claim 4 , trifluoroethane claim 4 , tetrafluoroethane claim 4 , pentafluoroethane claim 4 , trifluoroiodomethane claim 4 , pentafluoropropane claim 4 , hexafluoropropane claim 4 , heptafluoropropane claim 4 , pentafluorobutane and heptafluorocyclopentane is contained.6. The composition for a heat cycle system according to claim 1 , wherein as the unsaturated fluorinated hydrocarbon compound claim 1 , trifluoroethylene is ...

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Номер записи: 53
03-09-2020 дата публикации

LOW VISCOSITY GEAR OIL COMPOSITIONS FOR ELECTRIC AND HYBRID VEHICLES

Номер: US20200277542A1
Автор: GAO Zhisheng, SALVI Luca, Van Wassen Abigail R., Webster Martin N.
Принадлежит:

This disclosure relates to a lubricating oil (e.g., gear oil) for use in an electric or hybrid vehicle. The lubricating oil has a composition including one or more lubricating oil base stocks as a major component, and one or more lubricating oil additives, as a minor component. The one or more lubricating oil base stocks include at least one Group IV base oil, or at least one Group V base oil. The lubricating oil has a kinematic viscosity (KV) from 1 cSt to 7 cSt at 100° C. as determined by ASTM D-445, and an electrical conductivity at room temperature of less than 15,000 pS/m as determined by ASTM D-2624. This disclosure also relates to methods for producing a lubricating oil for a transmission, gear train, gear set, gear box, or gears of an electric vehicle powertrain and methods for improving energy efficiency, while maintaining or improving wear control.

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Номер записи: 54
11-10-2018 дата публикации

Ionic Liquid, Lubricant, and Magnetic Recording Medium

Номер: US20180291302A1
Автор: Baghel Pankaj, Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo
Принадлежит:

A lubricant including an ionic liquid wherein the ionic liquid includes a cation that is represented by General Formula (A) below and is free from a fluorine atom, and an anion that is represented by General Formula (X) below and is free from a fluorine atom, 2. The lubricant according to claim 1 ,{'sup': 2', '3', '4, 'wherein in General Formula (A), one of R, R, and Ris a hydrogen atom.'}4. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer disposed on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant according to disposed on the magnetic layer.'}6. The ionic liquid according to claim 5 ,{'sup': 2', '3', '4, 'wherein in General Formula (A), one of R, R, and Ris a hydrogen atom.'} The present application claims priority under 35 U.S.C. § 119 to Japanese Patent Application No. 2017-076878 filed Apr. 7, 2017. The contents of which are incorporated herein by reference in their entirety.The present invention relates to an ionic liquid, a lubricant including the ionic liquid, and a magnetic recording medium using the lubricant.Conventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an actual film thickness of the lubricant is of a molecular order. Accordingly, it is not exaggeration to say that the most important thing for a thin film magnetic recording medium is to select a lubricant giving excellent abrasion resistance in any environment.During a life of a magnetic recording medium, it is important that a lubricant is present on a surface of the medium without causing desorption, spin-off, and chemical deteriorations. Making the lubricant present on a surface of a medium is more difficult, as the surface of the thin film magnetic recording medium is smoother. ...

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Номер записи: 55
19-10-2017 дата публикации

IONIC LIQUID, LUBRICANT, AND MAGNETIC RECORDING MEDIUM

Номер: US20170298285A1
Автор: Baghel Pankaj, Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo
Принадлежит: DEXERIALS CORPORATION

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid is represented by General Formula (A) below, and wherein a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less, 3. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer disposed on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant according to , disposed on the magnetic layer.'} Field of the InventionThe present invention relates to an ionic liquid, a lubricant containing the ionic liquid, and a magnetic recording medium using the lubricant.Description of the Related ArtConventionally, in a thin film magnetic recording medium, a lubricant is applied onto a surface of a magnetic layer for the purpose of reducing frictions between a magnetic head and the surface of the magnetic recording medium, or reducing abrasion. In order to avoid adhesion, such as sticktion, an actual film thickness of the lubricant is of a molecular order. Accordingly, it is not exaggeration to say that the most important thing for a thin film magnetic recording medium is to select a lubricant having excellent abrasion resistance in any environment.During a life of a magnetic recording medium, it is important that a lubricant is present on a surface of the medium without causing desorption, spin-off, and chemical deteriorations. Making the lubricant present on a surface of a medium is more difficult, as the surface of the thin film magnetic recording medium is smoother. This is because the thin film magnetic recording medium does not have an ability of replenishing a lubricant as with a coating-type magnetic recording medium.In the case where an adhesion force between a lubricant and a protective film disposed at a surface of a magnetic layer is weak, moreover, a film thickness of the lubricant is reduced during heating or sliding hence accelerating abrasion. Therefore, a large ...

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Номер записи: 56
02-11-2017 дата публикации

ULTRAVIOLET-THICKENABLE THERMALLY CONDUCTIVE SILICONE GREASE COMPOSITION

Номер: US20170313924A1
Автор: Iwata Mitsuhiro
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

Provided is a one-pack type ultraviolet-thickable thermally conductive silicone grease composition which, at the initial stage, has a low viscosity (is easy to apply) but has high shape retentivity and which, after curing, is pliable (has low hardness). The ultraviolet-thickable thermally conductive silicone grease composition comprises, as essential components, (A) an organopolysiloxane having a viscosity at 25° C. of 50-100,000 mPa·s and containing at least one alkenyl group in the molecule, (B) a liquid organohydrogenpolysiloxane which has a viscosity at 25° C. of 100 mPa·s or less, contains 2-10 silicon-atom-bonded hydrogen atoms in the molecule and contains at least one alkoxy and/or epoxy group bonded to a silicon atom through an alkylene group and in which the polysiloxane has a degree of polymerization of 15 or less and the skeleton of the polysiloxane includes a cyclic structure, (C) a photoactivable platinum complex curing catalyst, and (D) a thermally conductive filler having a thermal conductivity of 10 W/m·° C. or greater. 1. A UV-thickening , heat-conductive silicone grease composition comprising , as essential components ,(A) 100 parts by weight of an organopolysiloxane having a viscosity of 50 to 100,000 mPa·s at 25° C. and containing at least one alkenyl group per molecule,(B) a liquid organohydrogenpolysiloxane having a viscosity of up to 100 mPa·s at 25° C., containing 2 to 10 silicon-bonded hydrogen atoms (Si—H groups) per molecule, containing at least one alkoxy and/or epoxy group bonded to a silicon atom through an alkylene group, the polysiloxane having a degree of polymerization of up to 15 and a cyclic structure-containing skeleton, in such an amount that the number of Si—H groups divided by the number of alkenyl groups in the composition may fall in the range from 0.1 to 5.0,(C) an effective amount of a photoactive platinum complex curing catalyst selected from the group consisting of trimethyl(acetylacetonate)platinum complex, trimethyl(2, ...

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Номер записи: 57
16-11-2017 дата публикации

HIGH TEMPERATURE LUBRICANT

Номер: US20170327760A1
Автор: Egersdorfer Karl, Grundei Stefan, Kilthau Thomas, Seemeyer Stefan
Принадлежит:

The invention relates to a food-compatible high-temperature lubricant, more particularly a high-temperature oil and a high-temperature grease, comprising the following components: 1. High-temperature oil comprisinga) 93.9 to 45 wt % of at least one oil selected from the group consisting of alkylaromatics, estolides, trimellitic esters, or a mixture of different trimellitic esters wherein the alcohol group of the ester is a linear or branched alkyl group having 8 to 16 carbon atoms;b) 6 to 45 wt % of a polymer, specifically a hydrogenated or fully hydrogenated polyisobutylene, or a mixture of hydrogenated or fully hydrogenated polyisobutylene;c) 0.1 to 10 wt % of additives, individually or in combination, selected from the group consisting of anticorrosion additives, antioxidants, antiwear additives, UV stabilizers, inorganic or organic solid lubricants.2. High-temperature oil according to claim 1 , wherein the oil component comprises as a further oil a compound selected from the group consisting of mineral oil claim 1 , aliphatic carboxylic and dicarboxylic esters claim 1 , fatty acid triglycerides claim 1 , pyromellitic esters claim 1 , diphenyl ethers claim 1 , phloroglucinol esters and/or poly-alpha-olefins claim 1 , alpha-olefin copolymers.3. High-temperature grease comprisinga) 91.9 to 25 wt % of at least one oil selected from the group consisting of alkylaromatics, estolides, trimellitic esters, or a mixture of different trimellitic esters wherein the alcohol group of the ester is a linear or branched alkyl group having 8 to 16 carbon atoms;b) 6 to 45 wt % of a polymer, selected from the group consisting of a hydrogenated or fully hydrogenated polyisobutylene or a mixture of hydrogenated or fully hydrogenated polyisobutylene;c) 0.1 to 10 wt % of additives, individually or in combination, selected from the group consisting of anticorrosion additives, antioxidants, antiwear additives, UV stabilizers, inorganic or organic solid lubricants, andd) 2 to 20 wt % of ...

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Номер записи: 58
17-10-2019 дата публикации

Composition for heat cycle system, and heat cycle system

Номер: US20190316016A1
Автор: Daisuke Shirakawa, Hiroaki Mitsuoka, Hirokazu Takagi, Mai TASAKA, Masato Fukushima, Takeaki Arai
Принадлежит: Asahi Glass Co Ltd

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.

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Номер записи: 59
24-10-2019 дата публикации

ANAEROBIC LUBRICANT SEALANT

Номер: US20190322957A1
Автор: GRISMALA Roger
Принадлежит:

Anaerobic sealant lubricant compositions and uses are disclosed. The anaerobic sealant lubricant compositions cure anaerobically but have lubricity for easy disassembly, making the compositions well suited for fasteners and threaded components. 1: An anaerobic sealant lubricant composition comprising:a) an acrylate;b) a plasticizer;c) a lubricant;d) a curing agent; ande) a rheology modifier.2: The anaerobic sealant lubricant composition of claim 1 , wherein the acrylate is difunctional (meth)acrylate.3: The anaerobic sealant lubricant composition of claim 2 , wherein the difunctional (meth)acrylate is selected from the group consisting of polyethylene glycol di(meth)acrylates claim 2 , di(meth)acrylates claim 2 , diethylene glycol dimethacrylate claim 2 , triethylene glycol dimethacrylate claim 2 , tetraethylene glycol dimethacrylate claim 2 , dipropylene glycol dimethacrylate claim 2 , di-(pentamethylene glycol) dimethacrylate claim 2 , tetraethylene diglycol diacrylate claim 2 , tetramethylene dimethacrylate claim 2 , ethylene dimethacrylate claim 2 , neopentyl glycol diacrylate claim 2 , bisphenol-A mono and di(meth)acrylates claim 2 , and mixtures thereof.4: The anaerobic sealant lubricant composition of claim 3 , wherein the difunctional (meth)acrylate is polyethylene glycol di(meth)acrylates.5: The anaerobic sealant lubricant composition of claim 1 , wherein the plasticizer is selected from the group consisting of trimelliates claim 1 , maleates claim 1 , organophosphates claim 1 , glycol claim 1 , polyether claim 1 , and mixtures thereof.6: The anaerobic sealant lubricant composition of claim 5 , wherein the plasticizer is tetraethylene glycol dioctanoate.7: The anaerobic sealant lubricant composition of claim 1 , wherein the lubricant is selected from the group consisting of graphite claim 1 , calcium oxide claim 1 , calcium carbonate claim 1 , calcium fluoride claim 1 , calcium stearate claim 1 , magnesium oxide claim 1 , magnesium carbonate claim 1 , ...

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Номер записи: 60
23-11-2017 дата публикации

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS

Номер: US20170337945A1
Автор: ENDO Daizo, HUNG Taining, KUO Evance, Nakamura Satoru
Принадлежит: SHOWA DENKO K.K.

The present invention relates to a magnetic recording medium in which a lubricant layer contains a compound A represented by general formula (1) and a compound B represented by general formula (2), satisfying (A/B)=0.2 to 3.0, and has an average thickness of 0.8 nm to 2 nm. R—CHOCHCH(OH)CHOCH—R—CHOCHCH(OH)CHOH . . . (1) (Ris an alkoxy group having 1 to 4 carbon atoms. Ris —CFO(CFCFO)(CFO)CF— (x, y=0 to 15), —CFCFO(CFCFCFO)CFCF— (z=1 to 15), —CFCFCFO(CFCFCFCF)CFCFCF— (n=0 to 4). HOCHCFCFO(CFCFCFO)CFCFCHOCHCH(OH)CHOH . . . (2) (m is an integer). 1. A magnetic recording medium comprising at least a magnetic layer , a protective layer and a lubricant layer in this order on a non-magnetic substrate , whereinthe protective layer is made of carbon or carbon nitride; [ [{'br': None, 'sup': 1', '2, 'sub': 6', '4', '2', '2', '2', '2', '2', '2, 'R—CHOCHCH(OH)CHOCH—R—CHOCHCH(OH)CHOH\u2003\u2003(1)'}, {'sup': '1', 'wherein, Ris an alkoxy group having 1 to 4 carbon atoms,'}, {'sup': '2', 'claim-text': [{'sub': 2', '2', '2', 'x', '2', 'y', '2, '—CFO(CFCFO)(CFO)CF—'}, 'wherein in parentheses of x and y, connection in this order, in reverse,', 'or randomly; and x, y are real numbers of 0 to 15, respectively,', {'sub': 2', '2', '2', '2', '2', 'z', '2', '2, '—CFCFO(CFCFCFO)CFCF—'}, 'wherein z is a real number of 1 to 15, or', {'sub': 2', '2', '2', '2', '2', '2', '2', 'n', '2', '2', '2, '—CFCFCFO(CFCFCFCFO)CFCFCF—'}, 'wherein n is a real number from 0 to 4, and, 'Ris'}], 'a compound A represented by the following general formula (1), [{'br': None, 'sub': 2', '2', '2', '2', '2', '2', 'm', '2', '2', '2', '2', '2, 'HOCHCFCFO(CFCFCFO)CFCFCHOCHCH(OH)CHOH\u2003\u2003(2)'}, 'wherein m is an integer;, 'a compound B represented by the following general formula (2)], 'the lubricant layer which is formed on and in contact with the protective layer, comprises'}a mass ratio (A/B) of the compound A with respect to the compound B is in the range of 0.2 to 3.0; andan average film thickness of the ...

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Номер записи: 61
01-12-2016 дата публикации

FULLERENE DERIVATIVE, FLUORORESIN COMPOSITION, AND LUBRICANT

Номер: US20160347703A1
Автор: IGARASHI Takeshi, Watanabe Kentaro
Принадлежит: SHOWA DENKO K.K.

A fullerene derivative of the present invention has a fullerene skeleton and a plurality of perfluoropolyether chains in a molecule, wherein the perfluoropolyether chains are bonded to the fullerene skeleton via methano groups, and 1. A fullerene derivative comprising , in a molecule ,a fullerene skeleton; anda plurality of perfluoropolyether chains linked to the fullerene skeleton via a carbon atom bonded to the fullerene skeleton at two locations.2. The fullerene derivative according to claim 1 , comprising 2 to 5 perfluoropolyether chains linked to the fullerene skeleton.4. The fullerene derivative according to claim 3 , wherein the Ris an aryl group.5. The fullerene derivative according to wherein the fullerene skeleton is C60.6. The fullerene derivative according to claim 1 ,{'sub': 2', 'x', '2', '2', 'x', '2', '2', '2', 'x', '2', '2', '2', '2', 'x', '2', '2', '3', '2', 'x, 'wherein the perfluoroether chains have at least one partial structure selected from the group consisting of —(CFO)—, —(CFCFO)—, —(CFCFCFO)—, —(CFCFCFCFO)—, and —(CF(CF)CFO)—(with the proviso that in the formula, x is an integer of 1 to 50.)7. The fullerene derivative according to claim 1 ,{'sub': 2', '2', 'y', '2', 'z, 'wherein the perfluoroether chains have a partial structure represented by —(CFCFO)(CFO)—(with the proviso that in the formula, y and z are integers of 1 to 50.)8. A fluororesin composition comprising the fullerene derivative according to .9. A lubricant comprising the fullerene derivative according to .10. The lubricant according to claim 9 , further comprising a perfluoropolyether compound having no fullerene skeleton. The present invention relates to a fullerene derivative, a fluororesin composition and a lubricant. Priority is claimed on Japanese Patent Application No. 2014-031919, filed Feb. 21, 2014, Japanese Patent Application No. 2014-164308, filed Aug. 12, 2014, and Japanese Patent Application No. 2014-200778, filed Sep. 30, 2014, the contents of which are ...

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Номер записи: 62
29-11-2018 дата публикации

PRESS-FIT LUBRICANT COMPOSITION

Номер: US20180340128A1
Автор: ASADA Yusuke, Ikejima Shozo, INUKAI Kyoji, Ishikawa Hiroyuki, Komaba Masanori, NIHIRA Takahiro, NOZU Takahiro, Shiomi Takumi
Принадлежит:

There is provided a press-fit lubricant composition comprising an unsaturated compound with an iodine value of 100 or more. 1. A press-fit lubricant composition comprising an unsaturated compound with an iodine value of 100 or more.2. The lubricant composition according to claim 1 , wherein the unsaturated compound is a drying oil or a semi-drying oil.3perilla. The lubricant composition according to claim 1 , wherein the unsaturated compound is selected from the group consisting of squalene claim 1 , docosahexaenoic acid (DHA) claim 1 , tung oil claim 1 , linseed oil claim 1 , oil claim 1 , castor oil claim 1 , safflower oil claim 1 , sunflower oil claim 1 , benne oil claim 1 , rapeseed salad oil claim 1 , soybean oil claim 1 , cottonseed oil claim 1 , rice bran oil claim 1 , and a mixture thereof.4. The press-fit lubricant composition according to claim 1 , further comprising a compound selected from the group consisting of peroxides claim 1 , azides claim 1 , metallic soaps claim 1 , inorganic acids claim 1 , Lewis acids claim 1 , organometallic compounds claim 1 , sulfur claim 1 , sulfur compounds claim 1 , amines claim 1 , thiol compounds claim 1 , organophosphorus compounds claim 1 , imidazole compounds claim 1 , olefin claim 1 , cyclic ethers claim 1 , methacrylic acid compounds claim 1 , acrylic acid compounds claim 1 , isocyanate compounds claim 1 , silicone compounds claim 1 , phenol compounds claim 1 , urethane compounds claim 1 , azonitriles claim 1 , azoesters claim 1 , azoamides claim 1 , azoamidines claim 1 , azoimidazoliums claim 1 , benzoin derivatives claim 1 , benzyl ketals claim 1 , α-hydroxyacetophenones claim 1 , α-aminoacetophenones claim 1 , acylphosphone oxides claim 1 , titanocenes claim 1 , iodonium salts claim 1 , sulfonium salts claim 1 , and mixtures thereof.5. The press-fit lubricant composition according to claim 1 , further comprising a thickener.6. An electrical contact point wherein the lubricant composition according to is applied ...

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Номер записи: 63
29-11-2018 дата публикации

LUBRICANT COMPOSITION

Номер: US20180340130A1
Автор: ASADA Yusuke, INUKAI Kyoji, NOZU Takahiro, Sawaguchi Wataru, Shiomi Takumi
Принадлежит:

A lubricant composition comprises a perfluoropolyether oil and an adhesive component. 1. A lubricant composition comprising a perfluoropolyether oil and an adhesive component.2. The lubricating composition according to claim 1 , wherein the adhesive component comprises at least one of 2-cyanoacrylate esters claim 1 , (meth)acrylate esters claim 1 , modified silicone resins claim 1 , and epoxy resins.3. The lubricant composition according to claim 1 , wherein a content of the adhesive component is 3 to 60% by weight based on a total weight of the lubricant composition.4. The lubricant composition according to claim 2 , wherein a content of the adhesive component is 3 to 60% by weight based on a total weight of the lubricant composition.5. The lubricant composition according to claim 1 , wherein the lubricant composition is used for a contact portion of an electrical connection part.6. The lubricant composition according to claim 2 , wherein the lubricant composition is used for a contact portion of an electrical connection part.7. The lubricant composition according to claim 3 , wherein the lubricant composition is used for a contact portion of an electrical connection part.8. The lubricant composition according to claim 4 , wherein the lubricant composition is used for a contact portion of an electrical connection part.9. The lubricant composition according to claim 1 , wherein the lubricant composition is used for a connection portion of a press-fit connector.10. The lubricant composition according to claim 2 , wherein the lubricant composition is used for a connection portion of a press-fit connector.11. The lubricant composition according to claim 3 , wherein the lubricant composition is used for a connection portion of a press-fit connector.12. The lubricant composition according to claim 4 , wherein the lubricant composition is used for a connection portion of a press-fit connector. The present application claims priority to Japanese Patent Application No. 2017 ...

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Номер записи: 64
07-12-2017 дата публикации

LUBRICANT FOR GAS INSULATED SWITCHGEAR, AND GAS INSULATED SWITCHGEAR

Номер: US20170349854A1
Автор: AKATA Hiroyuki, HIROSE Makoto, MORIYAMA Tomohiro, NAKAKAWAJI Takayuki, Satou Kazuhiro
Принадлежит: Hitachi, Ltd.

Provided is a lubricant for a gas insulated switchgear, with which properties of a base oil such as heat resistance, evaporation loss, fluidity under a low temperature, and chemical stability (oxidation resistance and HF resistance) are balanced at a level higher than the conventional level, and long service life and high reliability of the gas insulated switchgear are achieved. A lubricant for a gas insulated switchgear according to the present invention, contains: a base oil containing a polyalphaolefin having a kinematic viscosity at 40° C. of 50 mm/s or more; and a thickener containing bisamides. 1. A lubricant for a gas insulated switchgear , comprising:{'sup': '2', 'a base oil containing a polyalphaolefin having a kinematic viscosity at 40° C. of 50 mm/s or more; and'}a thickener containing bisamides.2. The lubricant for a gas insulated switchgear claim 1 , according to claim 1 , wherein the thickener is a methylene stearyl bisamide.3. The lubricant for a gas insulated switchgear claim 1 , according to claim 1 , wherein at least one kind of a conductivity imparting agent and a lubricity imparting agent is contained.4. The lubricant for a gas insulated switchgear claim 3 , according to claim 3 , wherein the conductivity imparting agent is graphite powder claim 3 , and the lubricity imparting agent is molybdenum disulfide.5. A gas insulated switchgear claim 3 , comprising:a gas circuit breaker;a disconnector;an installation switch;a current transformer; anda main bus,wherein the gas circuit breaker, the disconnector, the installation switch, and the current transformer have sliding parts, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant for a gas insulated switchgear according to is applied to the sliding parts.'} The present invention relates to a lubricant for a gas insulated switchgear, and a gas insulated switchgear.A gas insulated switchgear (hereinafter, abbreviated as “GIS”) is a switch with which load current of an electric power ...

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Номер записи: 65
21-11-2019 дата публикации

FLUOROPOLYETHER COMPOUND, LUBRICANT USING SAME, AND USAGE THEREOF

Номер: US20190352573A1
Автор: HATTA Tomomi, Inoue Aya, Sakane Yasuo, SHIMIZU Tsuyoshi
Принадлежит: MORESCO CORPORATION

Provided are a lubricant that is highly resistant to contamination and highly thermally stable, a lubricant that is highly durable and highly heat resistant, and a magnetic disk. A fluoropolyether compound contains perfluoropolyether groups, end groups each containing at least one hydroxyl group, and a linking group that is comprised of a C-Chydrocarbon group and that contains at least one hydroxyl group. 2. The fluoropolyether compound according to claim 1 , wherein p in Formula (1) is a real number of 2 to 10.3. The fluoropolyether compound according to claim 1 , wherein Xand Xin Formula (1) independently represent —CH(CF)O(CFO)(CFCFO)(CFCFCFO)(CFCFCFCFO)(CF)CH— claim 1 , where x and y are each a real number of 0 to 30 claim 1 , z is a real number of 0 to 30 claim 1 , w is a real number of 0 to 20 claim 1 , and q is an integer of 1 to 3.4. The fluoropolyether compound according to claim 1 , wherein the linking group has a structure represented by Formula (2) below:{'br': None, 'sub': 2', '2, '—CHCH(OH)—R—CH(OH)CH—\u2003\u2003(2),'}{'sub': 1', '6', '6', '10', '6', '10, 'where R represents a C-Caliphatic hydrocarbon group or a C-Chydrocarbon group whose main chain contains a phenylene group, at least one carbon atom in the main chain, which contains a phenylene group, of the C-Chydrocarbon group is optionally substituted with an oxygen atom.'}5. The fluoropolyether compound according to claim 1 , wherein Aand Ain Formula (1) independently represent —OH claim 1 , —CHCH(OH)CHOH claim 1 , —OCHCH(OH)CHOCHCH(OH)CHOH claim 1 , —O(CH)OH claim 1 , or —OCHCH(OH)CH—OCH—R claim 1 , where m is an integer of 2 to 8 and Ris hydrogen claim 1 , a C-Calkoxy group claim 1 , an amino group claim 1 , or an amide residue.6. A fluoropolyether compound having a structure represented by any of Formulas (3) to (6) below:{'br': None, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', 'm', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'n', '2', '2', '2', 'p', '2', '2, ...

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Номер записи: 66
20-12-2018 дата публикации

LUBRICANT FOR MAGNETIC RECORDING MEDIA, AND MAGNETIC RECORDING MEDIUM

Номер: US20180362874A1
Автор: Hatsuda Kouki, Kondo Hirofumi, Tano Nobuo
Принадлежит:

Provided is a lubricant for magnetic recording medium, where the lubricant includes an ionic liquid including an anionic component and a cationic component, wherein the anionic component includes a fluorine-containing chain having a number average molecular weight of 1,500 or less, the cationic component is a cation of cyclic amidine, and the cation of the cyclic amidine includes a fluorine-containing chain that is either a perfluoroalkyl chain or a perfluoropolyether chain. 3. The lubricant for magnetic recording media according to claim 1 ,wherein the anionic component is a sulfonic acid anion including the fluorine-containing chain, a sulfonyl imide anion including the fluorine-containing chain, or sulfonyl methide anion including the fluorine-containing chain.4. The lubricant for magnetic recording media according to claim 2 , {'br': None, 'sup': 1', '2, '*—Y—X—*.'}, 'wherein, in General Formula (I), the number of atoms in a straight chain connecting *1 and *2 of a divalent group represented by a structural formula below is 2 or greater,'}5. A magnetic recording medium comprising:a non-magnetic support;a magnetic layer disposed on the non-magnetic support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the lubricant for magnetic recording media according to , where the lubricant is disposed on the magnetic layer.'} The present invention relates to a lubricant for magnetic recording medium, and a magnetic recording medium using the lubricant.As recording density of a magnetic disk increases, a gap between a head and the disk has been getting narrower year by year. Recently, the gap has become on the order of from several nanometers to sub-nanometers. Therefore, abrasion of a disk tends to occur through contact with a head, leading to low recording reliability.In order to prevent abrasion of a hard disk (HD) through contact, therefore, a protective carbon layer and a lubricant layer are disposed on a surface of the hard disk. Typically, perfluoropolyether ( ...

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Номер записи: 67
28-12-2017 дата публикации

Ionic Liquid, Lubricant, and Magnetic Recording Medium

Номер: US20170369807A1
Автор: Hirofumi Kondo, Kouki Hatsuda, Nobuo Tano, Pankaj BAGHEL
Принадлежит: Dexerials Corp

A lubricant including an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid is represented by General Formula (A) below, and wherein a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less, where, in General Formula (A), R is a group including a straight-chain hydrocarbon group having 6 or greater carbon atoms, and R 1 and R 2 are each independently a hydrocarbon group.

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Номер записи: 68
19-12-2019 дата публикации

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

Номер: US20190382676A1
Автор: FUKUMOTO Naoya, Kato Tsuyoshi, MIYASAKA Ryuuta, Murofushi Katsumi, TOMITA Hiroyuki, UETAKE Shoko, YAGYU Daisuke, YAMAGUCHI Yuta
Принадлежит: SHOWA DENKO K.K.

A fluorine-containing ether compound represented by Formula (1) is provided. 1. A fluorine-containing ether compound represented by Formula (1){'br': None, 'sup': 1', '2', '3', '4', '5, 'sub': 2', '2, 'R—R—CH—R—CH—R—R\u2003\u2003(1)'}{'sup': 1', '5', '2', '4', '3, '(in Formula (1), Rand Reach represents a group having a heterocyclic ring and may be the same as or different from each other, Rand Reach represents a divalent linking group having a polar group and may be the same as or different from each other, and Rrepresents a perfluoropolyether chain).'}2. The fluorine-containing ether compound according to claim 1 ,wherein the heterocyclic ring includes one or more heteroatoms, andthe heteroatom is a nitrogen atom and/or a sulfur atom.3. The fluorine-containing ether compound according to claim 1 ,wherein the heterocyclic ring is at least one selected from a pyrazole ring, a thiophene ring, a thiazole ring, and a pyridine ring.4. The fluorine-containing ether compound according to claim 1 ,wherein the polar group is a hydroxyl group.5. The fluorine-containing ether compound according to claim 1 ,{'sup': 2', '4, 'claim-text': {'br': None, 'sub': 2', '2', 'a, '—(O—CHCH(OH)CH)—O—\u2003\u2003(2-1)'}, 'wherein Rand Rin Formula (1) are each represented by Formula (2-1) or (2-2)'} {'br': None, 'sub': 2', '2', '2', 'b, '—(O—CHCH(CHOH)CH)—O—\u2003\u2003(2-2)'}, '(in Formula (2-1), a represents an integer selected from 1 to 3)'}(in Formula (2-2), b represents an integer selected from 1 to 3).6. The fluorine-containing ether compound according to claim 1 ,{'sub': '3', 'claim-text': {'br': None, 'sub': 2', '2', '2', 'c', '2', 'd', '2, '—CF—(OCFCF)—(OCF)—OCF—\u2003\u2003(3)'}, 'wherein Ris represented by any of Formulas (3) to (5)'} {'br': None, 'sub': 3', '3', '2', 'e', '3, '—CF(CF)—(OCF(CF)CF)—OCF(CF)—\u2003\u2003(4)'}, '(in Formula (3), c and d each represents 0 to 20, where c or d is 0.1 or more)'} {'br': None, 'sub': 2', '2', '2', '2', '2', 'f', '2', '2, '—CFCF—(OCFCFCF)— ...

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Номер записи: 69
26-12-2019 дата публикации

METHOD AND TOOL FOR TREATING A SEAL WIPING SURFACE OF A SEALED CONNECTOR AND TOOL FOR TREATING A SEAL WIPING SURFACE OF A SEALED CONNECTOR

Номер: US20190393663A1
Автор: GEORGE TERRY A., Guza Sarah, Mata Ignacio Reyes, Mathews Thomas, Morgan Terry A.
Принадлежит:

A method of preparing a sealed connector system for connection is presented. The sealed connector system has a male connector body, a female connector body defining a shroud to receive the male connector body, and a resilient seal surrounding the male connector body. The method includes the steps of applying lubricant on a seal wiping surface on the shroud interior and inserting the male connector body within the female connector body such that the resilient seal is in compressive contact with the seal wiping surface. A tool to apply the lubricant includes an insert disposed within the shroud having a central cavity and passages extending from the central cavity to portals defined in an outer surface of the insert and a spray valve disposed within the insert configured to dispense a lubricant mist into the central cavity, through the passages to the portals, and onto the seal wiping surface. 1. A method of preparing a sealed connector system for connection , said sealed connector system comprising a male connector body , a female connector body defining a shroud configured to receive the male connector body , and a resilient seal axially surrounding a portion of the male connector body , said method comprising the steps of:a) applying a lubricant on a seal wiping surface on the interior of the shroud; andb) inserting the male connector body within the female connector body such that the resilient seal is in compressive contact with the seal wiping surface.2. The method according to claim 1 , wherein the lubricant is applied to the seal wiping surface using a spraying process.3. The method according to claim 2 , wherein step b) further comprises the steps of:disposing an insert within the shroud, wherein the insert defines a central cavity and a plurality of passages extending from the central cavity to portals defined in an outer surface of the insert that are arranged adjacent to the seal wiping surface;disposing a spray valve disposed within the insert;dispensing ...

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Номер записи: 70
18-10-2016 дата публикации

Composition comprising paraffin fractions obtained from biological raw materials and method of producing same

Номер: US9469583B2
Автор: Kati SANDBERG, Maija Hakola, Pekka Aalto, Tomi Nyman
Принадлежит: Neste Oyj

A composition, including 40-50 wt-% C14 paraffins, based on the total weight of the composition, and 35-45 wt-% C15 paraffins, based on the total weight of the composition, wherein the C14 and C15 paraffins are produced from a biological raw material.

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Номер записи: 71
20-03-2018 дата публикации

Ionic liquid, lubricant, and magnetic recording medium

Номер: US9920272B2
Автор: Hirofumi Kondo, Kouki Hatsuda, KyungSung Yun, Makiya Ito, Masayoshi Watanabe, Nobuo Tano
Принадлежит: Dexerials Corp

A lubricant including an ionic liquid, which includes a conjugate acid (B + ) and a conjugate base (X − ), and is protic, wherein the ionic liquid is represented by the following general formula (1): where R 1 and R 2 each represent a hydrogen atom or R 1 and R 2 form a benzene ring together with carbon atoms to which R 1 and R 2 are bonded, and R 3 represents a straight-chain hydrocarbon group having 10 or more carbon atoms in the general formula (1).

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Номер записи: 72
24-04-2018 дата публикации

Drive device, image forming apparatus, and grease composition

Номер: US9951862B2
Автор: Kumiko Seo, Masahiro Ishida, Naoki Matsuda, Teruyoshi Tanaka, Toshiyuki Kabata
Принадлежит: Ricoh Co Ltd

A drive device includes a gear having a hole; a shaft that passes through the hole; and a grease composition that is held in a clearance between the shaft and an inner peripheral surface of the hole. The gear rotates on a peripheral surface of the shaft. At least one of the gear and the shaft is made of a resin. The clearance is in a range of 10 to 110 μm. The grease composition contains a hydrocarbon base oil and lithium soap serving as a thickener. A weight ratio of the hydrocarbon base oil to the lithium soap is in a range of 94.5:5.5 to 96.0:4.0. A consistency of the grease composition is in a range of 360 to 400.

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Номер записи: 73
15-03-2016 дата публикации

Universal synthetic diesel fuel additive product-by-process to replace the lost sulfur lubrication when using low-sulfur diesel fuels

Номер: US9284507B2
Автор: Ronald J. Sloan
Принадлежит: BestLine International Research Inc

A diesel fuel lubricant as a replacement for sulfur lubrication in Ultra-Low and Low Sulfur Diesel fuels, the process for producing said lubricant, and the method of using said lubricant. This lubricant comprises alpha-olefins; low odor aromatic solvents; and at least one a base oil selected from the base oil group consisting of hydroisomerized high base oils and HT Severe Hydro-cracked Base Oils; as well as other ingredients. Also disclosed is a method for producing this lubricant.

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Номер записи: 74
28-03-2017 дата публикации

Use of zeolites for stabilizing oils

Номер: US9605230B2
Автор: Beatrice Boussand, Ludivine Bouvier
Принадлежит: Carbonisation et Charbons Actifs CECA SA

The present invention relates to the use of zeolites or of agglomerates based on zeolites in order to improve the thermal stability of oils and the invention is targeted in particular at the use of these zeolitic compounds for stabilizing the oils or the formulations based on oils participating in the composition of refrigerants.

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Номер записи: 75
12-04-2016 дата публикации

Lubricating grease based on perfluoropolyether

Номер: US9309479B2
Автор: Martin Schmidt-Amelunxen, Martin Schweigkofler
Принадлежит: Klueber Lubrication Muenchen SE and Co KG

A lubricating grease is provided that comprises 90 to 99.45 percent by mass of perfluoropolyethers (PFPE) and 0.5 to 5 percent by mass of fumed silica.

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Номер записи: 76
04-09-2018 дата публикации

Magnetic recording medium

Номер: US10068603B2
Автор: Akira Furuta, Kazuhiro KUSAKAWA, Kunihiro Imai, Masami Kuroda, Takako MATSUMOTO, Takeshi Watanabe
Принадлежит: Fuji Electric Co Ltd

A magnetic recording medium includes a nonmagnetic substrate and at least a magnetic layer, a protective layer, and a lubricating layer provided on the nonmagnetic substrate. The magnetic recording medium is characterized in that the lubricating layer is formed of a lubricating agent represented by general formulas (1), (2) or (3), in which substituents R 1 , R 2 , R 3 , and R 4 in the lubricating agent represent organic groups, at least one of the substituents R 1 and R 2 at the end part of the lubricating agent and the substituents R 3 and R 4 contain a plurality of functional groups, and the shortest distance between the functional groups is a distance of three or more atoms, preferably five atoms. The magnetic recording medium may be used for a heat assisted recording method in which the temperature of the magnetic layer reaches 150° C. to 200° C. The magnetic recording medium is characterized in that the amount of the lubricating agent volatilized in the lubricating layer is less than 10% of the initial layer thickness.

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Номер записи: 77
26-01-2016 дата публикации

Magnetic disk and method of manufacturing the same

Номер: US9245568B2
Автор: Kae ITOH, Katsushi Hamakubo
Принадлежит: WD Media Singapore Pte Ltd

Disclosed is a magnetic disk that has excellent durability, particularly excellent LUL durability, and excellent alumina resistance and has a high level of reliability under a low flying height of a magnetic head involved in a recent tendency toward a rapid increase in recording density and a very severe environment resistance requirement due to diversified applications. A magnetic disk ( 10 ) comprises a substrate ( 1 ) and at least a magnetic layer ( 6 ), a carbon-based protective layer ( 7 ), and a lubricating layer ( 8 ) provided in that order over the substrate ( 1 ). The lubricating layer ( 8 ) contains a compound that has a perfluoropolyether main chain in the structure thereof and has an aromatic group and a polar group at the end of the molecule.

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Номер записи: 78
26-12-2017 дата публикации

Sliding elastic body

Номер: US9850445B2
Автор: Yasuhisa Minagawa
Принадлежит: Sumitomo Rubber Industries Ltd

Provided are a sliding elastic body capable of imparting excellent sliding properties and resistance to protein adsorption and, at the same time, maintaining sealing properties; and a syringe gasket, a catheter, and a tire which include the sliding elastic body. The present invention relates to a sliding elastic body including an elastic body whose surface is fully or partially laminated with a fluororesin film, the laminated elastic body being treated with a fluorinated oil.

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Номер записи: 79
23-05-2017 дата публикации

Bearings

Номер: US9657776B2
Автор: Alan Hunter, Lars-Boris Kuntzler, Timothy J. Hagan, Vincent Dimartino
Принадлежит: Saint Gobain Performance Plastics Corp

A bearing includes a first member having a passageway configured to engage a shaft, the first member having a metallic material; and a second member disposed around at least a portion of the first member, the second member having a metallic material and at least one radially and inwardly bent portion capable of restricting axial movement of the first member. The first and second members are movable relative to each other.

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Номер записи: 80
26-11-2019 дата публикации

Low friction wear resistant graphene films

Номер: US10486195B2
Автор: Ali Erdemir, Anirudha V. Sumant, Diana BERMAN
Принадлежит: UChicago Argonne LLC

A low friction wear surface with a coefficient of friction in the superlubric regime including graphene and nanoparticles on the wear surface is provided, and methods of producing the low friction wear surface are also provided. A long lifetime wear resistant surface including graphene exposed to hydrogen is provided, including methods of increasing the lifetime of graphene containing wear surfaces by providing hydrogen to the wear surface.

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Номер записи: 81
03-02-2015 дата публикации

Hydrofluoroalcohols with improved thermal and chemical stability

Номер: US8946136B2
Автор: Giuseppe Marchionni, Marco Avataneo, Ugo De Patto
Принадлежит: Solvay Specialty Polymers Italy SpA

Hydrofluoro alcohols of formula (I): A-(R f ) a —CFX—O—R h O—(CFX—(R f ) a* —CFX—O—R h O—) n H in which: R h is a hydrocarbon-based chain; X is F or a C 1 -C 6 (per)fluoroalkyl; a or a* is 0 or 1; R f is a (per)fluoro(poly)oxyalkylene chain or a (per)fluoroalkyl chain; A is selected from the group consisting of —F, —Cl, and —H (possible only when a=1) or is HO—R h —O—CFX—; n is an integer from 0 to 200, with the condition that n=0 when A is selected from the group consisting of —F, —Cl, and —H.

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Номер записи: 82
11-02-2020 дата публикации

Composition having oil film retention function, anticorrosive agent using same, and insulated terminated electric wire

Номер: US10559403B2
Автор: Hideki Nomura, Hiroki Hirai, Junichi Ono, Kazuhiro Goto, Kazuo Nakashima, Makoto Mizoguchi, Takehiro Hosokawa, Takuji Otsuka, Tatsuya Hase
Принадлежит: AutoNetworks Technologies Ltd, Kyushu University NUC, Sumitomo Electric Industries Ltd, Sumitomo Wiring Systems Ltd

A composition having an oil film retention function which an oil film can be stably retained on surfaces of various metals, an anticorrosive agent using same, and insulated terminated electric wire. A composition having oil film retention function for being added to base oil to be applied onto a metal surface and retaining base oil on metal surface, and composition contains a component that is an adduct of an azole compound and acidic alkyl phosphate ester including one or more compounds represented by General Formulae (1) (Chemical Formula 1) P(═O)(—OR1)(—OH)2 . . . (1) or General Formula (2) (Chemical Formula 2) P(═O)(—OR1)2(—OH) . . . (2) where R1 represents an organic group having four or more carbon atoms, and component that is an adduct of a metal and/or organic amine compound and acidic alkyl phosphate ester including one or more compounds represented by General Formulae (1) or (2).

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Номер записи: 83
11-10-2016 дата публикации

Methods for producing oil formulations by means of certain carbodiimides

Номер: US9464256B2
Автор: Armin Eckert, Siegfried KUENZEL, Wilhelm Laufer
Принадлежит: RHEIN CHEMIE RHEINAU GMBH

The present invention relates to a novel method for preparing stabilized oil formulations by means of certain carbodiimides.

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Номер записи: 84
17-03-2020 дата публикации

Threaded tubular component and method for coating such a threaded tubular component

Номер: US10590715B2
Автор: Eliette Pinel, Eric Gard, Mikael Petit, Mohamed Gouider
Принадлежит: Nippon Steel Corp, Vallourec Oil and Gas France SAS

A method for producing a matrix-containing dry film on a threaded tubular component for drilling or working hydrocarbon wells, by applying a mixture containing a dispersion or an aqueous emulsion of an acrylic copolymer with a solution of an alkaline polysilicate in a liquid state onto a threaded end of the threaded tubular component by spraying at a temperature of from 20° C. to 40° C. thereby obtaining a threaded end coated with a film; drying the threaded end coated with the film; and densifying the film.

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Номер записи: 85
27-08-2019 дата публикации

Composition for heat cycle system, and heat cycle system

Номер: US10392546B2
Автор: Daisuke Shirakawa, Hiroaki Mitsuoka, Hirokazu Takagi, Mai TASAKA, Masato Fukushima, Takeaki Arai
Принадлежит: Asahi Glass Co Ltd

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.

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Номер записи: 86
09-07-2019 дата публикации

Fullerene derivative, fluororesin composition, and lubricant

Номер: US10343972B2
Автор: Kentaro Watanabe, Takeshi Igarashi
Принадлежит: Mitsubishi Corp, Showa Denko KK

A fullerene derivative of the present invention has a fullerene skeleton and a plurality of perfluoropolyether chains in a molecule, wherein the perfluoropolyether chains are bonded to the fullerene skeleton via methano groups, and a lubricant and fluororesin composition of the present invention contain the derivative.

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Номер записи: 87
14-08-2018 дата публикации

Ionic liquid, lubricating agent, and magnetic recording medium

Номер: US10047091B2
Автор: Hirofumi Kondo, Kouki Hatsuda, KyungSung Yun, Makiya Ito, Masayoshi Watanabe, Nobuo Tano
Принадлежит: Dexerials Corp

A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

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Номер записи: 88
07-06-2016 дата публикации

Genetically-engineered microbial oil dielectric fluid

Номер: US9362980B2
Автор: Brian R. Maurer, Suh Joon Han
Принадлежит: Dow Global Technologies LLC

The present disclosure provides a dielectric fluid composed of a genetically engineered microbial oil (GEMO) and an antioxidant. The GEMO includes a triglyceride and an amount of small glyceride. The amount of small glyceride is within a range from 0.1 wt % to 30 wt %, based upon the GEMO weight.

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Номер записи: 89
27-03-2018 дата публикации

Ionic liquid, lubricant, and magnetic recording medium

Номер: US9926508B2
Автор: Hirofumi Kondo, Kouki Hatsuda, KyungSung Yun, Makiya Ito, Masayoshi Watanabe, Nobuo Tano
Принадлежит: Dexerials Corp

A lubricant including an ionic liquid, which includes a conjugate acid (B + ) and a conjugate base (X − ), and is protic, wherein the conjugate acid includes a straight-chain hydrocarbon group having 10 or more carbon atoms, and wherein the conjugate base is represented by the following general formula (1): where n is an integer of from 0 to 6 in the general formula (1).

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Номер записи: 90
21-03-2017 дата публикации

Fluorinated polyether compound, lubricant, liquid composition and article

Номер: US9598657B2
Автор: Akira Isobe, Kenji Ishizeki
Принадлежит: Asahi Glass Co Ltd

To provide a fluorinated polyether compound capable of forming a film excellent in lubricity, a lubricant and a liquid composition, as well as an article having a film excellent in lubricity, on a substrate. A fluorinated polyether compound represented by {X—O—[(CF 2 CF 2 O) a —(CF 2 CF 2 CF 2 CF 2 O) b ]} m —Y—{[(OCF 2 CF 2 ) c —(OCF 2 CF 2 CF 2 CF 2 ) d ]—O—Z} n is used. X is a group having a hydroxy group, a carboxy group, an ester group or an aryl group, Y is an (m+n) valent linking group, Z is a group having a haloalkyl group, each of m and n is an integer of from 1 to 10, m+n is an integer of from 2 to 20, and each of a, b, c and d is an integer of from 1 to 100.

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Номер записи: 91
18-12-2018 дата публикации

Lubricant for gas insulated switchgear, and gas insulated switchgear

Номер: US10155916B2
Автор: Hiroyuki Akata, Kazuhiro Satou, Makoto Hirose, Takayuki Nakakawaji, Tomohiro Moriyama
Принадлежит: HITACHI LTD

Provided is a lubricant for a gas insulated switchgear, with which properties of a base oil such as heat resistance, evaporation loss, fluidity under a low temperature, and chemical stability (oxidation resistance and HF resistance) are balanced at a level higher than the conventional level, and long service life and high reliability of the gas insulated switchgear are achieved. A lubricant for a gas insulated switchgear according to the present invention, contains: a base oil containing a polyalphaolefin having a kinematic viscosity at 40° C. of 50 mm2/s or more; and a thickener containing bisamides.

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Номер записи: 92
19-03-2019 дата публикации

Composition for heat cycle system, and heat cycle system

Номер: US10233371B2
Автор: Daisuke Shirakawa, Hiroaki Mitsuoka, Hirokazu Takagi, Mai TASAKA, Masato Fukushima, Takeaki Arai
Принадлежит: Asahi Glass Co Ltd

A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The working fluid has a low global warming potential and can replace R410A. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point of at least −100° C. and at most 0° C.

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Номер записи: 93
30-05-2017 дата публикации

Production method for complex polyester composition, complex polyester composition, lubricant composition, and lubricant

Номер: US9663742B2
Автор: Toshiki Fujiwara, Yuji Terada
Принадлежит: Fujifilm Corp

A production method for a complex polyester composition includes obtaining a complex polyester composition by condensing polyhydric alcohol having three or more hydroxyl groups, a polycarboxylic acid having at least two carboxyl groups and carbon atoms of greater than or equal to 5, and monohydric alcohol having at least one oxyalkylene group in the absence of a solvent, wherein a component having a weight average molecular weight of less than or equal to 2000 in a GPC chart of the complex polyester composition is less than or equal to 43 area %.

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Номер записи: 94
21-04-2020 дата публикации

Curable thermally conductive grease, heat dissipation structure, and method for producing heat dissipation structure

Номер: US10626311B2
Автор: Gaku Kitada, Yasuyoshi Watanabe
Принадлежит: Sekisui Polymatech Co Ltd

A curable thermally conductive grease 1 a contains a curable liquid polymer, a thermally conductive filler (A) having an average particle diameter of less than 10 μm, and a thermally conductive filler (B) having an average particle diameter of 10 μm or more, the ratio by volume of the thermally conductive filler (A) to the thermally conductive filler (B), i.e., (A)/(B), being 0.65 to 3.02, and the curable thermally conductive grease having a viscosity of 700 Pa·s to 2070 Pa·s, in which after the curable thermally conductive grease is applied to the heat-generating body or the heat-dissipating body to a thickness of 5 mm, the curable thermally conductive grease has slump resistance in which the curable thermally conductive grease does not flow down when the heat-generating body or the heat-dissipating body is vertically arranged.

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Номер записи: 95
16-12-2014 дата публикации

Thermally conductive silicone grease composition

Номер: US8912132B2
Автор: Kazumi Nakayoshi, Tomoko Kato
Принадлежит: Dow Corning Toray Co Ltd

A thermally conductive silicone grease composition comprising at least the following components: (A) an organopolysiloxane which is liquid at 25° C. and is represented by the following average compositional formula: R 1 a SiO (4-a)/2 , where, R 1 is a monovalent hydrocarbon group; and “a” is a number ranging from 1.8 to 2.2; (B) a thermally conductive filler composed of constituents (B 1 ) to (B 3 ) given below, wherein: constituent (B 1 ) is spherical aluminum oxide powder with an average particle diameter ranging from 15 to 55 μm; constituent (B 2 ) is spherical aluminum oxide powder with an average particle diameter ranging from 2 to 10 μm; constituent (B 3 ) is aluminum oxide powder with an average particle size not exceeding 1 μm; and (C) an alkoxysilyl-containing organopolysiloxane. The composition, along with high thermal conductivity, possesses excellent handleability and low coefficient of friction.

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Номер записи: 96
04-02-2020 дата публикации

Cyclophosphazene derivatives

Номер: US10550226B2
Автор: Fabrizio Mutta, Roberto Valsecchi
Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention relates to a phosphazene compound [compound (L)] comprising a cyclophosphazene central core wherein each phosphorus atom of said core bears a substituent independently selected from: a) a chain (A), said chain (A) comprising a (per)fluoropolyether chain [chain (Rf)], one or more aromatic or heteroaromatic moieties [moiety/ies (Arm)] and, optionally, one or more hydroxy groups and b) a chain (B), said chain (B) comprising a (per)fluoropolyether chain [chain (Rf)] and one or more hydroxy groups with the proviso that at least one phosphorous atom of the central core is substituted with chain (A) and to mixtures of compounds (L). The invention further relates to methods for preparing compounds (L), to lubricant compositions comprising compounds (L) and to methods for lubricating magnetic recording media comprising applying a compound (L) or a lubricant compositions containing them to the surface of said medium.

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Номер записи: 97
26-02-2019 дата публикации

Solid lubricant, solid lubricant application apparatus and image forming apparatus

Номер: US10216125B2
Автор: Kunihiro Ogura, Taiki AMEMIYA, Yukio Hosoya
Принадлежит: KONICA MINOLTA INC

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.

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Номер записи: 98
05-11-2019 дата публикации

Solid lubricant, solid lubricant coater and image forming apparatus

Номер: US10466642B2
Автор: Kunihiro Ogura, Taiki AMEMIYA, Yukio Hosoya
Принадлежит: KONICA MINOLTA INC

The present invention relates to a solid lubricant to be coated on an image bearing member included in an electrophotographic image forming apparatus. The solid lubricant contains a resin particle and metal soap. The resin particle includes a particle body containing an amorphous resin as a principal component, and a fluorine atom supported on a surface of the particle body. The resin particle is a particle having a volume average particle size of 70 nm or more. The solid lubricant can sufficiently increase a cleaning effect in the image forming apparatus.

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Номер записи: 99