FR2446855B1 - - Google Patents

Info

Publication number: FR2446855B1
Authority: FR; France
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.): Expired

Application number

FR8001044A

Other languages

Other versions

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.)

3M Co

Original Assignee

Minnesota Mining and Manufacturing Co

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.)

1979-01-19

Filing date

1980-01-18

Publication date

1983-11-10

1980-01-18 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1980-08-14 Publication of FR2446855A1 publication Critical patent/FR2446855A1/fr

1983-11-10 Application granted granted Critical

1983-11-10 Publication of FR2446855B1 publication Critical patent/FR2446855B1/fr

Status Granted legal-status Critical Current

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
- G11B5/702—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 bonding agent
- G11B5/7021—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 bonding agent containing a polyurethane or a polyisocyanate
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
- C08G18/0814—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups containing ammonium groups or groups forming them
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Landscapes

Chemical & Material Sciences (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Paints Or Removers (AREA)
Magnetic Record Carriers (AREA)
Laminated Bodies (AREA)
Polyurethanes Or Polyureas (AREA)

FR8001044A 1979-01-19 1980-01-18 Revetement de particules fines dans un liant en copolymere sequence de polyurethane et milieu d'enregistrement magnetique comportant un tel revetement Granted FR2446855A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US481679A	1979-01-19	1979-01-19

Publications (2)

Publication Number	Publication Date
FR2446855A1 FR2446855A1 (fr)	1980-08-14
FR2446855B1 true FR2446855B1 (xx)	1983-11-10

Family

ID=21712670

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8001044A Granted FR2446855A1 (fr)	1979-01-19	1980-01-18	Revetement de particules fines dans un liant en copolymere sequence de polyurethane et milieu d'enregistrement magnetique comportant un tel revetement

Country Status (4)

Country	Link
JP (1)	JPS55100157A (xx)
DE (1)	DE3002164C2 (xx)
FR (1)	FR2446855A1 (xx)
GB (1)	GB2039930B (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5891524A (ja) *	1981-11-24	1983-05-31	Hitachi Maxell Ltd	磁気記録媒体
JPS58115629A (ja) *	1981-12-28	1983-07-09	Fuji Photo Film Co Ltd	磁気記録媒体
JPS58122619A (ja) *	1982-01-14	1983-07-21	Sony Corp	磁気記録媒体
US4525424A (en) *	1983-12-30	1985-06-25	International Business Machines Corporation	Flexible magnetic recording media having a polyester-polyurethane binder and chromium dioxide pigment
JPS63103416A (ja) *	1986-10-21	1988-05-09	Dainichi Color & Chem Mfg Co Ltd	磁気記録媒体
JPH0191317A (ja) *	1987-09-30	1989-04-11	Sony Corp	磁気記録媒体
JPH0191315A (ja) *	1987-10-01	1989-04-11	Sony Corp	磁気記録媒体
JPH02108225A (ja) *	1988-10-17	1990-04-20	Tdk Corp	磁気記録媒体
JP2764736B2 (ja) *	1989-03-15	1998-06-11	チッソ株式会社	磁性塗料
JP2663184B2 (ja) *	1989-11-10	1997-10-15	日本ポリウレタン工業株式会社	磁気記録媒体用ポリウレタン樹脂バインダーの製造方法
JP2663186B2 (ja) *	1989-11-29	1997-10-15	日本ポリウレタン工業株式会社	磁気記録媒体用ポリウレタン樹脂バインダーの製造方法
FR2815350B1 (fr) *	2000-10-17	2006-12-29	Oreal	Polyurethanes cationiques a caractere elastique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE639107A (xx) *	1962-10-26
DE1595602A1 (de) *	1966-03-12	1969-09-18	Bayer Ag	Verfahren zur Herstellung von Polyurethan-Kunststoffen
US3490945A (en) *	1966-11-15	1970-01-20	Rca Corp	Magnetic recording element and method for preparing same
DE2255802C3 (de) *	1972-11-15	1981-10-15	Basf Ag, 6700 Ludwigshafen	Schichtmagnetogrammträger

1980
- 1980-01-18 DE DE19803002164 patent/DE3002164C2/de not_active Expired - Lifetime
- 1980-01-18 GB GB8001824A patent/GB2039930B/en not_active Expired
- 1980-01-18 FR FR8001044A patent/FR2446855A1/fr active Granted
- 1980-01-18 JP JP374080A patent/JPS55100157A/ja active Granted

Also Published As

Publication number	Publication date
JPS6321613B2 (xx)	1988-05-09
JPS55100157A (en)	1980-07-30
GB2039930B (en)	1983-05-25
DE3002164A1 (de)	1980-07-31
GB2039930A (en)	1980-08-20
FR2446855A1 (fr)	1980-08-14
DE3002164C2 (de)	1994-05-05

Publication	Publication Date	Title
BR8002583A (xx)	1980-12-09
BR8006808A (xx)	1981-04-28
AT364253B (xx)	1981-10-12
AU78270S (xx)	1980-02-12
AU78569S (xx)	1980-05-19
AU78390S (xx)	1980-06-23
AU78271S (xx)	1980-02-12
AU78385S (xx)	1980-11-21
AU78386S (xx)	1981-01-23
AU78389S (xx)	1980-09-29
AU77669S (xx)	1980-09-29
AU78391S (xx)	1980-11-26
AU77763S (xx)	1980-09-15
AU79200S (xx)	1980-09-25
AU79557S (xx)	1981-06-03
AU79558S (xx)	1981-09-11
AU79559S (xx)	1981-09-11
AU79826S (xx)	1981-02-10
AU79918S (xx)	1981-02-09
AU79950S (xx)	1981-01-30
AU80228S (xx)	1980-09-09
BR5901094U (xx)	1981-02-17
BG28434A1 (xx)	1980-05-15
BG28729A1 (xx)	1980-07-15
BG28730A1 (xx)	1980-07-15

Legal Events

Date	Code	Title	Description
1995-11-24	ST	Notification of lapse