JP2001507388A - 液体組成物および磁気流動学的液体としてのその使用 - Google Patents
液体組成物および磁気流動学的液体としてのその使用Info
- Publication number
- JP2001507388A JP2001507388A JP52953798A JP52953798A JP2001507388A JP 2001507388 A JP2001507388 A JP 2001507388A JP 52953798 A JP52953798 A JP 52953798A JP 52953798 A JP52953798 A JP 52953798A JP 2001507388 A JP2001507388 A JP 2001507388A
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- JP
- Japan
- Prior art keywords
- liquid composition
- composition according
- component
- weight
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Lubricants (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.ベース液体として一種類以上の炭化水素化合物(A)と、 平均粒子径が50μm未満である一種類以上の粒状固体(B)と、 少なくとも3個でかつ20個を超えない−NH−C(=O)−NH−基を有す る一種類以上のポリ尿素化合物(C)、とを含む液体組成物。 2.ベース液体の沸点が100℃を超えることを特徴とする請求項1に記載の液 体組成物。 3.粒子の平均直径が20μm未満であることを特徴とする前記請求項のいずれ か一項に記載の液体組成物。 4.粒子の平均直径が0.5μmを超えることを特徴とする前記請求項のいずれ か一項に記載の液体組成物。 5.ポリ尿素化合物が、 R1−[−NH−C(=O)−NH−X−]n−NH−C(=O)−NH−R” の形式の化合物であり、 ここで、 nは、2〜19、最も好ましくは2〜7の整数であり、そして Xは、独立して、各nについて1〜26炭素原子を有する二価の炭化水素であ り、そして R’、R”は、独立して水素であるか、または1〜30炭素原子を有する炭化 水素である、ことを特徴とする前記請求項のいずれか一項に記載の液体組成物。 6.該固体が、遷移金属および/または遷移金属化合物であることを特徴とする 前記請求項のいずれか一項に記載の液体組成物。 7.該固体が、Fe、Coおよび/またはNiであるか、またはこれらを含有す ることを特徴とする前記請求項のいずれか一項に記載の液体組成物。 8.該固体が、鉄および/または酸化鉄であるか、またはこれらを含有すること を特徴とする前記請求項のいずれか一項に記載の液体組成物。 9.該固体が、カルボニル鉄/酸化鉄粉末の形の粒状固体であることを特徴とす る前記請求項のいずれか一項に記載の液体組成物。 10.該組成物がさらに部分エステル化ポリオール系の非イオン性界面活性剤( 成分D)を含有することを特徴とする前記請求項のいずれか一項に記載の液体組 成物。 11.該組成物がさらにアクリレートポリマーおよび/またはメタクリレートポ リマー(成分E)を含有することを特徴とする前記請求項のいずれか一項に記載 の液体組成物。 12.該組成物が、成分A以外に、 液体組成物に基づいて、 1〜95重量%の成分B、 0.05〜4重量%の成分Cまたは 成分Cとしての0.5〜40重量%のSRI/2グリース(Chevron) 、 0〜6重量%の任意の成分Dおよび 0〜20重量%の任意の成分Eを含有することを特徴とする前記請求項のいず れか一項に記載の液体組成物。 13.磁気流動学的液体としての前記請求項のいずれか一項に記載の液体組成物 の使用。 14.請求項1〜12のいずれか一項に記載の液体組成物の透過装置における使 用において、該装置内の該液体が、かけられる磁場にしたがって可変の流動学的 性質を有する液体組成物の使用。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19654461A DE19654461A1 (de) | 1996-12-27 | 1996-12-27 | Flüssigkeitszusammensetzung und Verwendung der Flüssigkeitszusammensetzung als magnetorheologische Flüssigkeit |
DE19654461.0 | 1996-12-27 | ||
PCT/DE1997/002992 WO1998029521A1 (de) | 1996-12-27 | 1997-12-20 | Flüssigkeitszusammensetzung und verwendung der flüssigkeitszusammensetzung als magnetorheologische flüssigkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001507388A true JP2001507388A (ja) | 2001-06-05 |
JP4502151B2 JP4502151B2 (ja) | 2010-07-14 |
Family
ID=7816281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52953798A Expired - Lifetime JP4502151B2 (ja) | 1996-12-27 | 1997-12-20 | 液体組成物および磁気流動学的液体としてのその使用 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6245253B1 (ja) |
EP (1) | EP0953034B1 (ja) |
JP (1) | JP4502151B2 (ja) |
DE (2) | DE19654461A1 (ja) |
WO (1) | WO1998029521A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013104037A (ja) * | 2011-11-16 | 2013-05-30 | Kyodo Yushi Co Ltd | 磁気粘性グリース組成物 |
JP2017059660A (ja) * | 2015-09-16 | 2017-03-23 | コスモ石油ルブリカンツ株式会社 | 磁気粘性流体組成物 |
WO2017047681A1 (ja) * | 2015-09-15 | 2017-03-23 | 本田技研工業株式会社 | 磁気粘性流体組成物及びこれを用いた振動減衰装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6132633A (en) * | 1999-07-01 | 2000-10-17 | Lord Corporation | Aqueous magnetorheological material |
US6203717B1 (en) | 1999-07-01 | 2001-03-20 | Lord Corporation | Stable magnetorheological fluids |
US7217372B2 (en) * | 2000-05-03 | 2007-05-15 | Lord Corporation | Magnetorheological composition |
US6547986B1 (en) * | 2000-09-21 | 2003-04-15 | Lord Corporation | Magnetorheological grease composition |
US6543396B2 (en) * | 2001-01-11 | 2003-04-08 | Borgwarner, Inc. | Electronically controlled magnetorheological fluid based cooling fan drive assembly |
US20030050421A1 (en) * | 2001-09-05 | 2003-03-13 | Salvino Carmen M. | Polymer composition and method of rapid preparation in situ |
US20050154090A1 (en) * | 2001-09-05 | 2005-07-14 | Carmen Salvino | Polymer composition and method of rapid preparation in situ |
DE10204956A1 (de) * | 2002-02-06 | 2003-08-14 | Fuchs Petrolub Ag | Dämpfersystem insbesondere für magnetorheologische Flüssigkeiten |
KR100467766B1 (ko) * | 2002-10-28 | 2005-01-24 | 김영삼 | 충격, 진동의 완충효능이 우수한 자기유동성 유체와 그제조방법 |
US20050242322A1 (en) * | 2004-05-03 | 2005-11-03 | Ottaviani Robert A | Clay-based magnetorheological fluid |
US7589153B2 (en) * | 2005-05-25 | 2009-09-15 | Georgia-Pacific Chemicals Llc | Glyoxalated inter-copolymers with high and adjustable charge density |
EP2067147B1 (de) * | 2006-09-22 | 2012-02-01 | Basf Se | Magnetorheologische formulierung |
US7863395B2 (en) * | 2006-12-20 | 2011-01-04 | Georgia-Pacific Chemicals Llc | Polyacrylamide-based strengthening agent |
US20110121223A1 (en) * | 2009-11-23 | 2011-05-26 | Gm Global Technology Operations, Inc. | Magnetorheological fluids and methods of making and using the same |
CN114709064B (zh) * | 2022-04-02 | 2023-06-27 | 黑龙江工程学院 | 一种动密封用高饱和磁化强度磁性流体的制备方法 |
Citations (7)
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---|---|---|---|---|
JPS53113804A (en) * | 1977-03-16 | 1978-10-04 | Hitachi Ltd | Grease composition |
JPS6173305A (ja) * | 1984-09-18 | 1986-04-15 | Tdk Corp | 磁性流体 |
JPH03106996A (ja) * | 1989-09-20 | 1991-05-07 | Hitachi Ltd | 熱伝導グリース組成物及びそれを用いた計算機用冷却構造体 |
JPH0457215A (ja) * | 1990-06-22 | 1992-02-25 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPH05112789A (ja) * | 1991-04-12 | 1993-05-07 | Nippon Oil Co Ltd | 磁性流体およびその製造方法 |
JPH08502779A (ja) * | 1992-10-30 | 1996-03-26 | ロード コーポレーション | 合金粒子を主成分とした磁気レオロジー材料 |
JPH08502783A (ja) * | 1992-10-30 | 1996-03-26 | ロード コーポレーション | チキソトロープ磁気レオロジー材料 |
Family Cites Families (6)
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---|---|---|---|---|
US3242210A (en) * | 1965-03-16 | 1966-03-22 | Chevron Res | Polyureas |
US4165329A (en) * | 1972-06-02 | 1979-08-21 | Chevron Research Company | Grease thickening agent |
US5096605A (en) * | 1989-03-31 | 1992-03-17 | Amoco Corporation | Aluminum soap thickened steel mill grease |
US4986923A (en) * | 1989-06-27 | 1991-01-22 | Amoco Corporation | Front-wheel drive grease with synergistic sulfate and carbonate additive system |
EP0773280B1 (en) * | 1995-11-13 | 2002-10-09 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joints |
US5589444A (en) * | 1996-06-06 | 1996-12-31 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joints |
-
1996
- 1996-12-27 DE DE19654461A patent/DE19654461A1/de not_active Ceased
-
1997
- 1997-12-20 DE DE59703627T patent/DE59703627D1/de not_active Expired - Lifetime
- 1997-12-20 WO PCT/DE1997/002992 patent/WO1998029521A1/de active IP Right Grant
- 1997-12-20 EP EP97953659A patent/EP0953034B1/de not_active Expired - Lifetime
- 1997-12-20 US US09/331,725 patent/US6245253B1/en not_active Expired - Fee Related
- 1997-12-20 JP JP52953798A patent/JP4502151B2/ja not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53113804A (en) * | 1977-03-16 | 1978-10-04 | Hitachi Ltd | Grease composition |
JPS6173305A (ja) * | 1984-09-18 | 1986-04-15 | Tdk Corp | 磁性流体 |
JPH03106996A (ja) * | 1989-09-20 | 1991-05-07 | Hitachi Ltd | 熱伝導グリース組成物及びそれを用いた計算機用冷却構造体 |
JPH0457215A (ja) * | 1990-06-22 | 1992-02-25 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPH05112789A (ja) * | 1991-04-12 | 1993-05-07 | Nippon Oil Co Ltd | 磁性流体およびその製造方法 |
JPH08502779A (ja) * | 1992-10-30 | 1996-03-26 | ロード コーポレーション | 合金粒子を主成分とした磁気レオロジー材料 |
JPH08502783A (ja) * | 1992-10-30 | 1996-03-26 | ロード コーポレーション | チキソトロープ磁気レオロジー材料 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013104037A (ja) * | 2011-11-16 | 2013-05-30 | Kyodo Yushi Co Ltd | 磁気粘性グリース組成物 |
US10377964B2 (en) | 2011-11-16 | 2019-08-13 | Kyodo Yushi Co., Ltd. | Magneto-rheological grease composition |
WO2017047681A1 (ja) * | 2015-09-15 | 2017-03-23 | 本田技研工業株式会社 | 磁気粘性流体組成物及びこれを用いた振動減衰装置 |
CN108028115A (zh) * | 2015-09-15 | 2018-05-11 | 本田技研工业株式会社 | 磁粘性流体组成物以及使用其的振动衰减装置 |
JPWO2017047681A1 (ja) * | 2015-09-15 | 2018-06-28 | 本田技研工業株式会社 | 磁気粘性流体組成物及びこれを用いた振動減衰装置 |
CN108028115B (zh) * | 2015-09-15 | 2020-02-21 | 本田技研工业株式会社 | 磁粘性流体组成物以及使用其的振动衰减装置 |
US10923260B2 (en) | 2015-09-15 | 2021-02-16 | Honda Motor Co., Ltd. | Magnetorheological fluid composition and vibration damping device using same |
JP2017059660A (ja) * | 2015-09-16 | 2017-03-23 | コスモ石油ルブリカンツ株式会社 | 磁気粘性流体組成物 |
Also Published As
Publication number | Publication date |
---|---|
WO1998029521A1 (de) | 1998-07-09 |
DE59703627D1 (de) | 2001-06-28 |
JP4502151B2 (ja) | 2010-07-14 |
DE19654461A1 (de) | 1998-07-02 |
EP0953034A1 (de) | 1999-11-03 |
EP0953034B1 (de) | 2001-05-23 |
US6245253B1 (en) | 2001-06-12 |
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