GB1569489A - Magnetic recording tapes containing a phosphoric acid ester dispersant - Google Patents
Magnetic recording tapes containing a phosphoric acid ester dispersant Download PDFInfo
- Publication number
- GB1569489A GB1569489A GB52437/77A GB5243777A GB1569489A GB 1569489 A GB1569489 A GB 1569489A GB 52437/77 A GB52437/77 A GB 52437/77A GB 5243777 A GB5243777 A GB 5243777A GB 1569489 A GB1569489 A GB 1569489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphoric acid
- dispersion agent
- mono
- amine
- salt
- 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
- 150000003014 phosphoric acid esters Chemical class 0.000 title claims description 26
- 239000002270 dispersing agent Substances 0.000 title description 2
- 239000006185 dispersion Substances 0.000 claims description 48
- 239000003795 chemical substances by application Substances 0.000 claims description 47
- 150000001412 amines Chemical class 0.000 claims description 29
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 27
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 24
- 150000003839 salts Chemical class 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 20
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 19
- 229940055577 oleyl alcohol Drugs 0.000 claims description 19
- 239000011230 binding agent Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 11
- 150000002148 esters Chemical class 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical class CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims description 9
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 9
- 244000060011 Cocos nucifera Species 0.000 claims description 9
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical class OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 9
- 125000004185 ester group Chemical group 0.000 claims description 8
- 150000005690 diesters Chemical class 0.000 claims description 7
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- -1 oleyl alcohols Chemical class 0.000 claims description 4
- 150000002894 organic compounds Chemical class 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 claims description 3
- 125000001302 tertiary amino group Chemical group 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 claims description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims 15
- 239000010410 layer Substances 0.000 claims 7
- 239000002904 solvent Substances 0.000 claims 7
- 229960004418 trolamine Drugs 0.000 claims 7
- 239000000314 lubricant Substances 0.000 claims 4
- 238000005259 measurement Methods 0.000 claims 4
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims 3
- 229920001577 copolymer Polymers 0.000 claims 3
- 239000011049 pearl Substances 0.000 claims 3
- 238000002360 preparation method Methods 0.000 claims 3
- 238000003756 stirring Methods 0.000 claims 3
- 229920013646 Hycar Polymers 0.000 claims 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims 2
- 239000012790 adhesive layer Substances 0.000 claims 2
- 238000003490 calendering Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 239000007795 chemical reaction product Substances 0.000 claims 2
- 238000001704 evaporation Methods 0.000 claims 2
- 239000011888 foil Substances 0.000 claims 2
- 239000004615 ingredient Substances 0.000 claims 2
- 238000006386 neutralization reaction Methods 0.000 claims 2
- 229920002635 polyurethane Polymers 0.000 claims 2
- 239000004814 polyurethane Substances 0.000 claims 2
- 239000008347 soybean phospholipid Substances 0.000 claims 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims 1
- CBECDWUDYQOTSW-UHFFFAOYSA-N 2-ethylbut-3-enal Chemical compound CCC(C=C)C=O CBECDWUDYQOTSW-UHFFFAOYSA-N 0.000 claims 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims 1
- 239000005642 Oleic acid Substances 0.000 claims 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 125000002947 alkylene group Chemical group 0.000 claims 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000001627 detrimental effect Effects 0.000 claims 1
- 235000014113 dietary fatty acids Nutrition 0.000 claims 1
- 238000004090 dissolution Methods 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 150000002170 ethers Chemical class 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 239000000194 fatty acid Substances 0.000 claims 1
- 229930195729 fatty acid Natural products 0.000 claims 1
- 150000004665 fatty acids Chemical class 0.000 claims 1
- 238000000227 grinding Methods 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229940043265 methyl isobutyl ketone Drugs 0.000 claims 1
- 239000002480 mineral oil Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 239000000178 monomer Substances 0.000 claims 1
- JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 claims 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims 1
- 239000012044 organic layer Substances 0.000 claims 1
- 229920000058 polyacrylate Polymers 0.000 claims 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims 1
- 229920002689 polyvinyl acetate Polymers 0.000 claims 1
- 239000011118 polyvinyl acetate Substances 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 239000011973 solid acid Substances 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 235000011007 phosphoric acid Nutrition 0.000 description 6
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical group C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- GOLAKLHPPDDLST-HZJYTTRNSA-N (9z,12z)-octadeca-9,12-dien-1-amine Chemical compound CCCCC\C=C/C\C=C/CCCCCCCCN GOLAKLHPPDDLST-HZJYTTRNSA-N 0.000 description 1
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical class OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229960004011 methenamine Drugs 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- UZRADERTNNBODJ-UHFFFAOYSA-N octadecan-1-amine pentan-1-amine Chemical compound C(CCCC)N.C(CCCCCCCCCCCCCCCCC)N UZRADERTNNBODJ-UHFFFAOYSA-N 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/14—Derivatives of phosphoric acid
-
- 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
-
- 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
- G11B5/71—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 lubricant
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7614182A NL7614182A (nl) | 1976-12-21 | 1976-12-21 | Magnetisch registratie-element waarin als dispergeermiddel een zout van een amine en een fosforzure ester wordt toegepast. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1569489A true GB1569489A (en) | 1980-06-18 |
Family
ID=19827424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52437/77A Expired GB1569489A (en) | 1976-12-21 | 1977-12-16 | Magnetic recording tapes containing a phosphoric acid ester dispersant |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4197357A (enExample) |
| JP (1) | JPS5921087B2 (enExample) |
| BE (1) | BE862024A (enExample) |
| DE (1) | DE2754883C2 (enExample) |
| FR (1) | FR2374945A1 (enExample) |
| GB (1) | GB1569489A (enExample) |
| NL (1) | NL7614182A (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2188641A (en) * | 1983-04-22 | 1987-10-07 | Ici Plc | Article having magnetic properties and production thereof |
| GB2266535A (en) * | 1992-04-30 | 1993-11-03 | Basf Magnetics Gmbh | Magnetic recording medium |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55117734A (en) * | 1979-02-28 | 1980-09-10 | Sekisui Chem Co Ltd | Binding agent for magnetic recording medium |
| US4305993A (en) * | 1979-10-09 | 1981-12-15 | Hitachi Maxell, Ltd. | Magnetic recording medium |
| JPS5677926A (en) * | 1979-11-28 | 1981-06-26 | Tdk Corp | Magnetic recording medium using cobalt adhesion type iron oxide |
| JPS5744223A (en) * | 1980-08-28 | 1982-03-12 | Toyo Ink Mfg Co Ltd | Magnetic recording medium |
| US4537832A (en) * | 1982-12-25 | 1985-08-27 | Tdk Corporation | Magnetic recording medium |
| US4507217A (en) * | 1983-03-07 | 1985-03-26 | Lipid Specialties, Inc. | Magnetic compositions and magnetic memory devices prepared therefrom |
| JPS6043217A (ja) * | 1983-08-19 | 1985-03-07 | Toshiba Corp | 磁気記録媒体 |
| GB8402801D0 (en) * | 1984-02-02 | 1984-03-07 | Ici Plc | Dispersion |
| NL8501063A (nl) * | 1985-04-11 | 1986-11-03 | Pd Magnetics Bv | Magnetisch registratie element. |
| EP0244024A1 (en) * | 1986-04-29 | 1987-11-04 | PD Magnetics B.V. | Magnetic recording element |
| DE3718957A1 (de) * | 1986-06-07 | 1987-12-10 | Victor Company Of Japan | Magnetische aufzeichnungsmedien, umfassend wenigstens in einer magnetischen aufzeichnungsschicht ein modifiziertes vinylchlorid-kunstharzbindemittel |
| US5318838A (en) * | 1988-01-22 | 1994-06-07 | Fuji Photo Film Co., Ltd. | Magnetic recording medium comprising ferromagnetic particles, binder resins and phenyl phosphonic acid |
| JP2794329B2 (ja) * | 1990-07-10 | 1998-09-03 | ライト工業株式会社 | 防音装置 |
| EP0486820B1 (de) * | 1990-11-01 | 1995-09-20 | BASF Magnetics GmbH | Magnetischer Aufzeichnungsträger |
| US5655691A (en) * | 1992-02-24 | 1997-08-12 | Homax Products, Inc. | Spray texturing device |
| US5934518A (en) * | 1992-02-24 | 1999-08-10 | Homax Products, Inc. | Aerosol texture assembly and method |
| US5725007A (en) * | 1995-07-07 | 1998-03-10 | Stubbs; William L. | Valve mechanism and method for making same |
| JPH10320760A (ja) * | 1997-05-21 | 1998-12-04 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JP2002298333A (ja) * | 2001-03-29 | 2002-10-11 | Fuji Photo Film Co Ltd | 六方晶系フェライトの製造方法及びそれを用いた磁気記録媒体 |
| US7677420B1 (en) | 2004-07-02 | 2010-03-16 | Homax Products, Inc. | Aerosol spray texture apparatus for a particulate containing material |
| US7487893B1 (en) | 2004-10-08 | 2009-02-10 | Homax Products, Inc. | Aerosol systems and methods for dispensing texture material |
| JP2006260613A (ja) * | 2005-03-15 | 2006-09-28 | Tdk Corp | 磁気記録媒体 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042639A (en) * | 1956-06-11 | 1962-07-03 | Reeves Soundcraft Corp | Magnetic iron oxide coating compositions for recording tape |
| US3284360A (en) * | 1964-02-24 | 1966-11-08 | Carters Ink Company | Magnetic transfer sheet |
| US3471415A (en) * | 1966-12-20 | 1969-10-07 | Honora Friedman | Magnetic inks containing lecithin as a surfactant |
| JPS4824042B1 (enExample) * | 1968-02-12 | 1973-07-18 | ||
| US3692884A (en) * | 1969-02-07 | 1972-09-19 | Edwin R Gaskell | Phosphate esters |
| US3647539A (en) * | 1970-02-09 | 1972-03-07 | Ampex | Magnetic recording tape and method for preparing the same |
| US4070522A (en) * | 1973-04-20 | 1978-01-24 | Fujitsu Limited | Magnetic recording medium |
-
1976
- 1976-12-21 NL NL7614182A patent/NL7614182A/xx not_active Application Discontinuation
-
1977
- 1977-12-09 DE DE2754883A patent/DE2754883C2/de not_active Expired
- 1977-12-15 US US05/860,702 patent/US4197357A/en not_active Expired - Lifetime
- 1977-12-16 GB GB52437/77A patent/GB1569489A/en not_active Expired
- 1977-12-17 JP JP52151230A patent/JPS5921087B2/ja not_active Expired
- 1977-12-19 BE BE183599A patent/BE862024A/xx not_active IP Right Cessation
- 1977-12-20 FR FR7738408A patent/FR2374945A1/fr active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2188641A (en) * | 1983-04-22 | 1987-10-07 | Ici Plc | Article having magnetic properties and production thereof |
| GB2266535A (en) * | 1992-04-30 | 1993-11-03 | Basf Magnetics Gmbh | Magnetic recording medium |
| GB2266535B (en) * | 1992-04-30 | 1996-03-13 | Basf Magnetics Gmbh | Magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7614182A (nl) | 1978-06-23 |
| FR2374945B1 (enExample) | 1984-07-27 |
| JPS5378810A (en) | 1978-07-12 |
| JPS5921087B2 (ja) | 1984-05-17 |
| US4197357A (en) | 1980-04-08 |
| DE2754883C2 (de) | 1986-02-27 |
| BE862024A (fr) | 1978-06-19 |
| DE2754883A1 (de) | 1978-06-22 |
| FR2374945A1 (fr) | 1978-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |