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FR2388362A1 - Fluide d'enregistrement magnetique contenant comme dispersant un derive de n-acylsarcosine - Google Patents

Fluide d'enregistrement magnetique contenant comme dispersant un derive de n-acylsarcosine

Info

Publication number
FR2388362A1
FR2388362A1 FR7811317A FR7811317A FR2388362A1 FR 2388362 A1 FR2388362 A1 FR 2388362A1 FR 7811317 A FR7811317 A FR 7811317A FR 7811317 A FR7811317 A FR 7811317A FR 2388362 A1 FR2388362 A1 FR 2388362A1
Authority
FR
France
Prior art keywords
acylsarcosine
salts
derivative
dispersant
magnetic recording
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.)
Granted
Application number
FR7811317A
Other languages
English (en)
Other versions
FR2388362B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2388362A1 publication Critical patent/FR2388362A1/fr
Application granted granted Critical
Publication of FR2388362B1 publication Critical patent/FR2388362B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/7013—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the dispersing agent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/31765—Inorganic-containing or next to inorganic-containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31942—Of aldehyde or ketone condensation product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper
    • Y10T428/31996—Next to layer of metal salt [e.g., plasterboard, etc.]

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un fluide d'enregistrement magnétique, tel qu'une bande magnétique comportant un support sur lequel est appliqué un revêtement magnétisable contenant un liant à l'aide d'un dispersant. Comme dispersant est utilisé un dérivé de N-acylsarcosine. On obtient ainsi en peu de temps une dispersion optimale du pigment dans le liant. Un excès de dispersant agit comme lubrifiant pendant la migration. Le groupe acyle contient de préférence une chaîne d'hydrocarbure aliphatique ou oléfinique comptant 12 à 22 atomes de carbone. On préfère utiliser des sels de N-acylsarcosine, notamment des sels métalliques, des sels des métaux alcalins, des sels alcalino-terreux et des sels d'amine. Application : bande magnétique.
FR7811317A 1977-04-18 1978-04-18 Fluide d'enregistrement magnetique contenant comme dispersant un derive de n-acylsarcosine Granted FR2388362A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7704183A NL7704183A (nl) 1977-04-18 1977-04-18 Magnetisch registreermedium waarin als disper- geermiddel een n-acylsarcosine derivaat wordt toegepast.

Publications (2)

Publication Number Publication Date
FR2388362A1 true FR2388362A1 (fr) 1978-11-17
FR2388362B1 FR2388362B1 (fr) 1985-02-15

Family

ID=19828374

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811317A Granted FR2388362A1 (fr) 1977-04-18 1978-04-18 Fluide d'enregistrement magnetique contenant comme dispersant un derive de n-acylsarcosine

Country Status (7)

Country Link
US (1) US4153754A (fr)
JP (1) JPS5923007B2 (fr)
BE (1) BE866051A (fr)
DE (1) DE2815027C2 (fr)
FR (1) FR2388362A1 (fr)
GB (1) GB1572590A (fr)
NL (1) NL7704183A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585457B2 (ja) * 1978-11-30 1983-01-31 ティーディーケイ株式会社 磁気記録媒体
JPS55117739A (en) * 1979-03-03 1980-09-10 Hitachi Maxell Ltd Magnetic recording medium
JPS5898833A (ja) 1981-12-07 1983-06-11 Fuji Photo Film Co Ltd 磁気記録体
US4584243A (en) * 1982-11-01 1986-04-22 Sumitomo Chemical Company, Limited Abrasive, production thereof and use thereof in magnetic recording medium
JPS5982633A (ja) * 1982-11-02 1984-05-12 Sumitomo Chem Co Ltd 親油性表面を有する磁気記録用研磨剤
GB8402801D0 (en) * 1984-02-02 1984-03-07 Ici Plc Dispersion
JPS6153368A (ja) * 1984-08-22 1986-03-17 Nippon Zeon Co Ltd 磁性塗料
GB8531635D0 (en) * 1985-01-22 1986-02-05 Ici Plc Composition
CA1288881C (fr) 1985-10-04 1991-09-10 Ismael Colon Produits phosphoryles de reaction, et compositions qui les referment
CA1278399C (fr) * 1985-10-15 1990-12-27 Charles Neale Merriam Resines de chlorure de vinyle, et compositions qui les renferment
JPS6289220A (ja) * 1985-10-15 1987-04-23 Hitachi Maxell Ltd 磁気記録媒体
EP0244024A1 (fr) * 1986-04-29 1987-11-04 PD Magnetics B.V. Elément d'enregistrement magnétique
US5064550A (en) * 1989-05-26 1991-11-12 Consolidated Chemical Consulting Co. Superparamagnetic fluids and methods of making superparamagnetic fluids
WO1990014672A1 (fr) * 1989-05-26 1990-11-29 Wyman John E Fluides superparamagnetiques et procedes de production de fluides superparamagnetiques
US5114798A (en) * 1991-06-19 1992-05-19 Aluminum Company Of America Memory disc lubricated by N-acyl sarcosine derivative
US5916355A (en) * 1998-08-11 1999-06-29 Sony Corporation Corrosion inhibitor for magnetic media
EP1355860A1 (fr) * 2001-01-09 2003-10-29 Wastewater Biological Solutions Corp. Appareil et procede de traitement biologique des contaminants de l'environnement et des dechets
TWI310570B (en) * 2004-07-30 2009-06-01 Jfe Mineral Co Ltd Ultrafine metal powder slurry
DE102005049136A1 (de) * 2004-12-01 2006-06-08 Degussa Ag Zubereitung, enthaltend ein polymerisierbares Monomer und/oder ein Polymer und darin dispergiert ein superparamagnetisches Pulver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130202A (en) * 1975-05-06 1976-11-12 Toshiba Corp A magnetic recording medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1929171C3 (de) * 1969-06-09 1979-06-07 Basf Ag, 6700 Ludwigshafen Schichtmagnetogrammträger
US3647539A (en) * 1970-02-09 1972-03-07 Ampex Magnetic recording tape and method for preparing the same
US3804810A (en) * 1970-12-30 1974-04-16 Du Pont Cross-linked polyurethanes based on aromatic/aliphatic copolyesters
JPS5133758A (fr) * 1974-09-17 1976-03-23 Fuji Photo Film Co Ltd
US4020236A (en) * 1975-07-22 1977-04-26 Fuji Photo Film Co., Ltd. Process for producing a magnetic material and magnetic recording medium containing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130202A (en) * 1975-05-06 1976-11-12 Toshiba Corp A magnetic recording medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABJP/77 *

Also Published As

Publication number Publication date
FR2388362B1 (fr) 1985-02-15
DE2815027C2 (de) 1985-08-01
GB1572590A (en) 1980-07-30
JPS5923007B2 (ja) 1984-05-30
JPS53129606A (en) 1978-11-11
NL7704183A (nl) 1978-10-20
DE2815027A1 (de) 1978-10-26
BE866051A (fr) 1978-10-17
US4153754A (en) 1979-05-08

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