GB2039930B - Coating of fine particles in polyurethane binder - Google Patents
Coating of fine particles in polyurethane binderInfo
- Publication number
- GB2039930B GB2039930B GB8001824A GB8001824A GB2039930B GB 2039930 B GB2039930 B GB 2039930B GB 8001824 A GB8001824 A GB 8001824A GB 8001824 A GB8001824 A GB 8001824A GB 2039930 B GB2039930 B GB 2039930B
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- fine particles
- polyurethane binder
- polyurethane
- binder
- 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.)
- Expired
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
- G11B5/702—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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US481679A | 1979-01-19 | 1979-01-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2039930A GB2039930A (en) | 1980-08-20 |
GB2039930B true GB2039930B (en) | 1983-05-25 |
Family
ID=21712670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8001824A Expired GB2039930B (en) | 1979-01-19 | 1980-01-18 | Coating of fine particles in polyurethane binder |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS55100157A (un) |
DE (1) | DE3002164C2 (un) |
FR (1) | FR2446855A1 (un) |
GB (1) | GB2039930B (un) |
Families Citing this family (12)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL299775A (un) * | 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 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
- 1980-01-18 DE DE19803002164 patent/DE3002164C2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2039930A (en) | 1980-08-20 |
JPS6321613B2 (un) | 1988-05-09 |
FR2446855B1 (un) | 1983-11-10 |
DE3002164C2 (de) | 1994-05-05 |
JPS55100157A (en) | 1980-07-30 |
FR2446855A1 (fr) | 1980-08-14 |
DE3002164A1 (de) | 1980-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950118 |