ATE205330T1 - Magnetische kolloide unter verwendung von dispergiermitteln aus poly(12- hydroxystearinsäure) mit endständiger säuregruppe - Google Patents

Magnetische kolloide unter verwendung von dispergiermitteln aus poly(12- hydroxystearinsäure) mit endständiger säuregruppe

Info

Publication number: ATE205330T1
Authority: AT; Austria
Prior art keywords: acid; dispersants; terminated poly; magnetic colloids; hydroxystearic
Prior art date: 1996-04-19

Application number

AT97106467T

Other languages

English (en)

Inventor

John E Wyman

Shiro Tsuda

Original Assignee

Ferrotec Corp

Priority date (The priority date 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 date listed.)

1996-04-19

Filing date

1997-04-18

Publication date

2001-09-15

1997-04-18 Application filed by Ferrotec Corp filed Critical Ferrotec Corp

2001-09-15 Application granted granted Critical

2001-09-15 Publication of ATE205330T1 publication Critical patent/ATE205330T1/de

Links

239000002253 acid Substances 0.000 title abstract 2
239000000084 colloidal system Substances 0.000 title abstract 2
239000002270 dispersing agent Substances 0.000 title abstract 2
-1 POLY(12-HYDROXYSTEARIC ACID) Polymers 0.000 title 2
ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 abstract 2
229940114072 12-hydroxystearic acid Drugs 0.000 abstract 1
150000002148 esters Chemical class 0.000 abstract 1
239000007788 liquid Substances 0.000 abstract 1
239000006249 magnetic particle Substances 0.000 abstract 1
239000000203 mixture Substances 0.000 abstract 1

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

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Soft Magnetic Materials (AREA)
Lubricants (AREA)
Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

AT97106467T 1996-04-19 1997-04-18 Magnetische kolloide unter verwendung von dispergiermitteln aus poly(12- hydroxystearinsäure) mit endständiger säuregruppe ATE205330T1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US63675396A	1996-04-19	1996-04-19
US66913096A	1996-06-24	1996-06-24
US08/753,908 US5730893A (en)	1996-04-19	1996-12-03	Magnetic colloids using acid terminated poly (12-hydroxystearic acid) dispersants

Publications (1)

Publication Number	Publication Date
ATE205330T1 true ATE205330T1 (de)	2001-09-15

Family

ID=27417598

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT97106467T ATE205330T1 (de)	1996-04-19	1997-04-18	Magnetische kolloide unter verwendung von dispergiermitteln aus poly(12- hydroxystearinsäure) mit endständiger säuregruppe

Country Status (4)

Country	Link
US (1)	US5730893A (de)
EP (1)	EP0802546B1 (de)
AT (1)	ATE205330T1 (de)
DE (1)	DE69706466T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5930075A (en) *	1995-10-30	1999-07-27	Seagate Technology, Inc.	Disc drive spindle motor having hydro bearing with optimized lubricant viscosity
EP1056712A4 (de) *	1998-01-20	2005-01-05	Bernel Chemical Company Inc	12-hydroxy-stearinsäureester, darauf basierende zusammensetzungen und methoden zur anwendung und herstellung dieser zusammensetzungen
US6126951A (en) *	1998-07-14	2000-10-03	Bernel Chemical Company, Inc.	Emollient esters based upon capryl alcohol and isostearic acid
WO2004017746A1 (en) *	2002-08-19	2004-03-04	Unilever N.V.	Frozen confection
US9254398B2 (en)	2009-03-23	2016-02-09	Kobo Products Inc.	Self-dispersible coated metal oxide powder, and process for production and use
CN118978680A (zh) *	2024-08-06	2024-11-19	湖南建工汇建新材料科技有限公司	一种分散剂及其制备方法和石膏

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2106882A (en) *	1936-12-12	1938-02-01	Magnaflux Corp	Paste of paramagnetic particles for use in the examination of paramagnetic materials for flaws by the magnetic method
NL88348C (de) *	1951-08-23
US2859181A (en) *	1956-05-02	1958-11-04	Texas Co	Heat stable lithium-lead soap composition
US4208294A (en) *	1979-02-12	1980-06-17	The United States Of America, As Represented By The Secretary Of The Interior	Dilution stable water based magnetic fluids
US4430239A (en) *	1981-10-21	1984-02-07	Ferrofluidics Corporation	Ferrofluid composition and method of making and using same
JPS5924438A (ja) *	1982-08-02	1984-02-08	Fuji Photo Film Co Ltd	磁気記録媒体
JPS5963030A (ja) *	1982-10-01	1984-04-10	Fuji Photo Film Co Ltd	磁気記録媒体
US4608186A (en) *	1984-07-30	1986-08-26	Tdk Corporation	Magnetic fluid
JPS6142733A (ja) *	1984-08-07	1986-03-01	Konishiroku Photo Ind Co Ltd	磁気記録媒体
US4604222A (en) *	1985-05-21	1986-08-05	Ferrofluidics Corporation	Stable ferrofluid composition and method of making and using same
US4701276A (en) *	1986-10-31	1987-10-20	Hitachi Metals, Ltd.	Super paramagnetic fluids and methods of making super paramagnetic fluids
SE8800394L (sv) *	1988-02-08	1989-08-09	Skf Nova Ab	Superparamagnetiska vaetskor
US5064550A (en) *	1989-05-26	1991-11-12	Consolidated Chemical Consulting Co.	Superparamagnetic fluids and methods of making superparamagnetic fluids
JPH04246475A (ja) *	1991-01-31	1992-09-02	Daikin Ind Ltd	磁性塗料の製造方法
JPH05331472A (ja) *	1992-05-28	1993-12-14	Tokyo Yogyo Co Ltd	摺動材料
JP3275412B2 (ja) *	1993-01-20	2002-04-15	日本精工株式会社	磁性流体組成物及び磁性流体シール装置
JPH07297013A (ja) *	1994-04-21	1995-11-10	Toyota Central Res & Dev Lab Inc	磁石粉末の製造方法

1996
- 1996-12-03 US US08/753,908 patent/US5730893A/en not_active Expired - Lifetime
1997
- 1997-04-18 AT AT97106467T patent/ATE205330T1/de not_active IP Right Cessation
- 1997-04-18 DE DE69706466T patent/DE69706466T2/de not_active Expired - Fee Related
- 1997-04-18 EP EP97106467A patent/EP0802546B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US5730893A (en)	1998-03-24
EP0802546A1 (de)	1997-10-22
EP0802546B1 (de)	2001-09-05
DE69706466T2 (de)	2002-04-25
DE69706466D1 (de)	2001-10-11

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Legal Events

Date	Code	Title	Description
2002-03-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties