CA1287836C - Support d'enregistrement magnetique - Google Patents

Support d'enregistrement magnetique

Info

Publication number: CA1287836C
Authority: CA; Canada
Prior art keywords: diisocyanate; compound; terminals; molecular weight; polyurethane
Prior art date: 1987-05-06
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 - Fee Related

Application number

CA 565958

Other languages

English (en)

Inventor

Tomoyuki Okada

Naoki Kannen

Rikio Tsushima

Tadashi Nishimori

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.)

Kao Corp

Original Assignee

Kao 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.)

1987-05-06

Filing date

1988-05-05

Publication date

1991-08-20

1987-05-06 Priority claimed from JP11037487A external-priority patent/JPS63275556A/ja

1987-07-24 Priority claimed from JP18473487A external-priority patent/JPS6430020A/ja

1987-07-24 Priority claimed from JP18473687A external-priority patent/JPS6430021A/ja

1988-05-05 Application filed by Kao Corp filed Critical Kao Corp

1991-08-20 Application granted granted Critical

1991-08-20 Publication of CA1287836C publication Critical patent/CA1287836C/fr

2008-08-20 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

230000005291 magnetic effect Effects 0.000 title claims abstract description 48
150000001875 compounds Chemical class 0.000 claims abstract description 62
239000004814 polyurethane Substances 0.000 claims abstract description 40
229920002635 polyurethane Polymers 0.000 claims abstract description 32
239000011230 binding agent Substances 0.000 claims abstract description 30
229920005989 resin Polymers 0.000 claims abstract description 21
239000011347 resin Substances 0.000 claims abstract description 21
239000000843 powder Substances 0.000 claims abstract description 19
125000002947 alkylene group Chemical group 0.000 claims abstract description 16
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 12
230000005294 ferromagnetic effect Effects 0.000 claims abstract description 10
239000001257 hydrogen Substances 0.000 claims abstract description 8
229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
239000000126 substance Substances 0.000 claims abstract description 8
125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 4
-1 diisocyanate compound Chemical class 0.000 claims description 64
JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 43
229920005749 polyurethane resin Polymers 0.000 claims description 32
238000000034 method Methods 0.000 claims description 29
239000003973 paint Substances 0.000 claims description 18
150000002430 hydrocarbons Chemical group 0.000 claims description 14
IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 14
229920005862 polyol Polymers 0.000 claims description 13
125000004432 carbon atom Chemical group C* 0.000 claims description 12
CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 claims description 9
150000003077 polyols Chemical class 0.000 claims description 9
125000001309 chloro group Chemical group Cl* 0.000 claims description 8
125000005442 diisocyanate group Chemical group 0.000 claims description 8
DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 8
UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 7
125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 claims description 7
238000005227 gel permeation chromatography Methods 0.000 claims description 7
239000005058 Isophorone diisocyanate Substances 0.000 claims description 6
125000004423 acyloxy group Chemical group 0.000 claims description 6
150000002009 diols Chemical class 0.000 claims description 6
NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 6
239000002904 solvent Substances 0.000 claims description 6
125000000217 alkyl group Chemical group 0.000 claims description 5
RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 claims description 5
FDYWJVHETVDSRA-UHFFFAOYSA-N 1,1-diisocyanatobutane Chemical compound CCCC(N=C=O)N=C=O FDYWJVHETVDSRA-UHFFFAOYSA-N 0.000 claims description 4
VGHSXKTVMPXHNG-UHFFFAOYSA-N 1,3-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC(N=C=O)=C1 VGHSXKTVMPXHNG-UHFFFAOYSA-N 0.000 claims description 4
ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 claims description 4
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
OEMVAFGEQGKIOR-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCCCC Chemical compound N=C=O.N=C=O.CCCCCCCC OEMVAFGEQGKIOR-UHFFFAOYSA-N 0.000 claims description 4
125000005336 allyloxy group Chemical group 0.000 claims description 4
STBLQDMGPBQTMI-UHFFFAOYSA-N heptane;isocyanic acid Chemical compound N=C=O.N=C=O.CCCCCCC STBLQDMGPBQTMI-UHFFFAOYSA-N 0.000 claims description 4
125000002768 hydroxyalkyl group Chemical group 0.000 claims description 4
125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 4
SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 claims description 3
ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 claims description 3
KEZMBAQUUXDDDQ-UHFFFAOYSA-N CCC.N=C=O.N=C=O Chemical compound CCC.N=C=O.N=C=O KEZMBAQUUXDDDQ-UHFFFAOYSA-N 0.000 claims description 3
CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
KYIMHWNKQXQBDG-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCC Chemical compound N=C=O.N=C=O.CCCCCC KYIMHWNKQXQBDG-UHFFFAOYSA-N 0.000 claims description 3
FUCRTFHCJZBKBB-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCCCCC Chemical compound N=C=O.N=C=O.CCCCCCCCC FUCRTFHCJZBKBB-UHFFFAOYSA-N 0.000 claims description 3
DGOMVSNLFKNSAR-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCCCCCC Chemical compound N=C=O.N=C=O.CCCCCCCCCC DGOMVSNLFKNSAR-UHFFFAOYSA-N 0.000 claims description 3
125000005907 alkyl ester group Chemical group 0.000 claims description 3
125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 claims description 3
125000000490 cinnamyl group Chemical group C(C=CC1=CC=CC=C1)* 0.000 claims description 3
238000004132 cross linking Methods 0.000 claims description 3
238000001035 drying Methods 0.000 claims description 3
ACZCVGSXPFEIGP-UHFFFAOYSA-N ethane;isocyanic acid Chemical compound CC.N=C=O.N=C=O ACZCVGSXPFEIGP-UHFFFAOYSA-N 0.000 claims description 3
229910052736 halogen Inorganic materials 0.000 claims description 3
230000005855 radiation Effects 0.000 claims description 3
230000009257 reactivity Effects 0.000 claims description 3
125000001424 substituent group Chemical group 0.000 claims description 3
VKLNMSFSTCXMSB-UHFFFAOYSA-N 1,1-diisocyanatopentane Chemical compound CCCCC(N=C=O)N=C=O VKLNMSFSTCXMSB-UHFFFAOYSA-N 0.000 claims 2
SZBXTBGNJLZMHB-UHFFFAOYSA-N 1-chloro-2,4-diisocyanatobenzene Chemical compound ClC1=CC=C(N=C=O)C=C1N=C=O SZBXTBGNJLZMHB-UHFFFAOYSA-N 0.000 claims 2
125000005843 halogen group Chemical group 0.000 claims 2
VLKZOEOYAKHREP-UHFFFAOYSA-N methyl pentane Natural products CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims 2
229920001730 Moisture cure polyurethane Polymers 0.000 claims 1
150000001412 amines Chemical class 0.000 claims 1
ATUOYWHBWRKTHZ-UHFFFAOYSA-N dimethylmethane Natural products CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims 1
BKIMMITUMNQMOS-UHFFFAOYSA-N normal nonane Natural products CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 claims 1
239000001294 propane Substances 0.000 claims 1
239000012948 isocyanate Substances 0.000 abstract description 17
239000007858 starting material Substances 0.000 abstract description 3
125000001183 hydrocarbyl group Chemical group 0.000 abstract 2
ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 45
238000006243 chemical reaction Methods 0.000 description 38
229960005088 urethane Drugs 0.000 description 37
CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 28
QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 14
239000011369 resultant mixture Substances 0.000 description 14
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
238000000576 coating method Methods 0.000 description 10
229920001577 copolymer Polymers 0.000 description 10
239000000203 mixture Substances 0.000 description 9
NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 8
239000011248 coating agent Substances 0.000 description 8
239000000047 product Substances 0.000 description 8
125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 7
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 6
238000010894 electron beam technology Methods 0.000 description 6
OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 5
239000002253 acid Substances 0.000 description 5
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
150000002513 isocyanates Chemical class 0.000 description 5
239000007788 liquid Substances 0.000 description 5
239000000376 reactant Substances 0.000 description 5
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VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 4
229920000139 polyethylene terephthalate Polymers 0.000 description 4
239000005020 polyethylene terephthalate Substances 0.000 description 4
239000011541 reaction mixture Substances 0.000 description 4
238000010992 reflux Methods 0.000 description 4
UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 3
YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
125000003118 aryl group Chemical group 0.000 description 3
230000015572 biosynthetic process Effects 0.000 description 3
WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 3
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239000001913 cellulose Substances 0.000 description 3
230000000052 comparative effect Effects 0.000 description 3
239000012975 dibutyltin dilaurate Substances 0.000 description 3
ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 3
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239000003112 inhibitor Substances 0.000 description 3
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
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238000006116 polymerization reaction Methods 0.000 description 3
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125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
POTYORUTRLSAGZ-UHFFFAOYSA-N (3-chloro-2-hydroxypropyl) prop-2-enoate Chemical compound ClCC(O)COC(=O)C=C POTYORUTRLSAGZ-UHFFFAOYSA-N 0.000 description 2
AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
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WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
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239000006229 carbon black Substances 0.000 description 2
239000007809 chemical reaction catalyst Substances 0.000 description 2
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238000004587 chromatography analysis Methods 0.000 description 2
AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium dioxide Chemical compound O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 2
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JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical class CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
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230000001965 increasing effect Effects 0.000 description 2
229910052742 iron Inorganic materials 0.000 description 2
QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
238000004898 kneading Methods 0.000 description 2
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BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
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239000003960 organic solvent Substances 0.000 description 2
VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
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238000002360 preparation method Methods 0.000 description 2
230000035484 reaction time Effects 0.000 description 2
CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
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238000005160 1H NMR spectroscopy Methods 0.000 description 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 description 1
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LAYMPUGDQVIOBX-UHFFFAOYSA-N 2-hydroxydodecyl prop-2-enoate Chemical compound CCCCCCCCCCC(O)COC(=O)C=C LAYMPUGDQVIOBX-UHFFFAOYSA-N 0.000 description 1
125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
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239000004925 Acrylic resin Substances 0.000 description 1
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IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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239000008096 xylene Substances 0.000 description 1

Landscapes

Paints Or Removers (AREA)
Polyurethanes Or Polyureas (AREA)

CA 565958 1987-05-06 1988-05-05 Support d'enregistrement magnetique Expired - Fee Related CA1287836C (fr)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
JP110374/87		1987-05-06
JP11037487A JPS63275556A (ja)	1987-05-06	1987-05-06	新規な重合性ジヒドロキシル化合物
JP18473487A JPS6430020A (en)	1987-07-24	1987-07-24	Magnetic recording medium
JP18473687A JPS6430021A (en)	1987-07-24	1987-07-24	Magnetic recording medium
JP184734/87		1987-07-24

Publications (1)

Publication Number	Publication Date
CA1287836C true CA1287836C (fr)	1991-08-20

Family

ID=27311716

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 565958 Expired - Fee Related CA1287836C (fr)	1987-05-06	1988-05-05	Support d'enregistrement magnetique

Country Status (1)

Country	Link
CA (1)	CA1287836C (fr)

1988
- 1988-05-05 CA CA 565958 patent/CA1287836C/fr not_active Expired - Fee Related

Legal Events

Date	Code	Title	Description
1999-08-20	MKLA	Lapsed

Publication	Publication Date	Title
US5661207A (en)	1997-08-26	Carboxylic-acid functional polyurethane polymers and their use in magnetic recording media
JP2000502388A (ja)	2000-02-29	磁気記録媒体で用いるカルボン酸官能性ポリウレタンポリマーおよびその混合物
US5134035A (en)	1992-07-28	Magnetic recording medium containing a polyurethane copolymer with a free radically polymerized polymer segment grafted to the polyurethane through a sulfur atom
US4559118A (en)	1985-12-17	Magnetic recording media
US5244739A (en)	1993-09-14	Magnetic recording media comprising a cured dispersion coating of a magnetizable pigment and polyurethane polymer containing a vinyl polymeric segment pendant from the polyurethane backbone
CA1319863C (fr)	1993-07-06	Supports d'enregistrement magnetique souples et methode de fabrication de supports d'enregistrement magnetique par dispersion reactive dans un fluide stable
US4557813A (en)	1985-12-10	Magnetic recording media
JP2630467B2 (ja)	1997-07-16	磁気記録媒体用ポリウレタン樹脂バインダー
CA1338676C (fr)	1996-10-22	Liants pour supports d'enregistrement magnetique et supports d'enregistrement magnetique
US4762902A (en)	1988-08-09	Electron curable polyurethanes
JPS60254413A (ja)	1985-12-16	磁気記録担体
US4666781A (en)	1987-05-19	Magnetic recording media
CA1287836C (fr)	1991-08-20	Support d'enregistrement magnetique
CA1320399C (fr)	1993-07-20	Supports d'enregistrement magnetique et methode de fabrication de ces supports par dispersion reactive dans un fluide stable
US5240972A (en)	1993-08-31	Carbamate modified sulfonated and non-sulfonated hydroxy-functional polyurethane macroiniferter compounds, copolymers made therewith, and magnetic recording media prepared therefrom
US5114793A (en)	1992-05-19	Magnetic recording medium comprising a specified polyurethane binder
JPS5928223A (ja)	1984-02-14	磁気記録担体
US5118580A (en)	1992-06-02	Magnetic recording media prepared from polyurethane copolymers formed utilizing an interferter compound
EP0463806B1 (fr)	1997-08-27	Copolymères de polyuréthane à fonction hydroxy vinyl-sulfonés et non sulfonés preparés à partir de macromonomères, et leur utilisation comme milieu d'enregistrement magnétique
US4597990A (en)	1986-07-01	Preparation of magnetic recording media
JP2603547B2 (ja)	1997-04-23	磁気記録媒体用ポリウレタン樹脂バインダー
EP0255250B1 (fr)	1993-09-01	Milieu d'enregistrement magnétique et méthode utilisant une dispersion stable réactive dans un fluide pour la préparation de milieux d'enregistrement magnétique
KR100352695B1 (ko)	2003-01-24	가교성결합제성분으로서적합한재료
JPS6243830A (ja)	1987-02-25	放射線硬化型磁気記録媒体
JP3575130B2 (ja)	2004-10-13	磁気記録媒体