CN1021154C - 用于磁性介体记录的具有改善的粘合特性的热塑性聚氨酯 - Google Patents
用于磁性介体记录的具有改善的粘合特性的热塑性聚氨酯 Download PDFInfo
- Publication number
- CN1021154C CN1021154C CN90100608A CN90100608A CN1021154C CN 1021154 C CN1021154 C CN 1021154C CN 90100608 A CN90100608 A CN 90100608A CN 90100608 A CN90100608 A CN 90100608A CN 1021154 C CN1021154 C CN 1021154C
- Authority
- CN
- China
- Prior art keywords
- tape
- magnetic
- particle
- chain extender
- mole
- 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 - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 30
- 229920002803 thermoplastic polyurethane Polymers 0.000 title claims description 23
- 239000011230 binding agent Substances 0.000 title abstract description 6
- 239000004433 Thermoplastic polyurethane Substances 0.000 title description 2
- 239000006249 magnetic particle Substances 0.000 claims abstract description 28
- 229920000728 polyester Polymers 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 12
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 12
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical group C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 5
- 239000004970 Chain extender Substances 0.000 claims abstract 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 125000001931 aliphatic group Chemical group 0.000 claims description 12
- 239000007767 bonding agent Substances 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 8
- 125000005442 diisocyanate group Chemical group 0.000 claims description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- AXKZIDYFAMKWSA-UHFFFAOYSA-N 1,6-dioxacyclododecane-7,12-dione Chemical class O=C1CCCCC(=O)OCCCCO1 AXKZIDYFAMKWSA-UHFFFAOYSA-N 0.000 claims description 5
- 229940106691 bisphenol a Drugs 0.000 claims description 5
- 229920000151 polyglycol Polymers 0.000 claims description 4
- 239000010695 polyglycol Substances 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- 150000008065 acid anhydrides Chemical class 0.000 claims description 3
- 125000001118 alkylidene group Chemical group 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 125000002947 alkylene group Chemical group 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 8
- 239000000543 intermediate Substances 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 6
- 150000001721 carbon Chemical group 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- -1 polyethylene terephthalate Polymers 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 150000002576 ketones Chemical class 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- UUAGPGQUHZVJBQ-UHFFFAOYSA-N Bisphenol A bis(2-hydroxyethyl)ether Chemical compound C=1C=C(OCCO)C=CC=1C(C)(C)C1=CC=C(OCCO)C=C1 UUAGPGQUHZVJBQ-UHFFFAOYSA-N 0.000 description 2
- 241001597008 Nomeidae Species 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 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
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 description 1
- CTTJWXVQRJUJQW-UHFFFAOYSA-N 2,2-dioctyl-3-sulfobutanedioic acid Chemical compound CCCCCCCCC(C(O)=O)(C(C(O)=O)S(O)(=O)=O)CCCCCCCC CTTJWXVQRJUJQW-UHFFFAOYSA-N 0.000 description 1
- KQEIJFWAXDQUPR-UHFFFAOYSA-N 2,4-diaminophenol;hydron;dichloride Chemical compound Cl.Cl.NC1=CC=C(O)C(N)=C1 KQEIJFWAXDQUPR-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical class OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 1
- RWOBKKZZJPDWEX-UHFFFAOYSA-N naphthalene;zinc Chemical compound [Zn].C1=CC=CC2=CC=CC=C21 RWOBKKZZJPDWEX-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical class O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000006069 physical mixture Substances 0.000 description 1
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229940083466 soybean lecithin Drugs 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000012749 thinning agent Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 239000010698 whale oil Substances 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
- 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
-
- 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
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3215—Polyhydroxy compounds containing aromatic groups or benzoquinone groups
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
用于声相装置或计算机的磁带，其中使用了一种将含在其中的磁性颗粒粘结到基底上的粘合剂。所述粘合剂含有聚异氰酸酯与羟基封端聚酯中间体和双酚A衍生的链增长剂的掺合物的反应产物。所述链增长剂具有下式结构，式中R1和R2各自表示2-4个碳原子的亚烷基，以含2个碳原子，即为亚乙基为好。
Description
本发明涉及其上具有磁性录音介质的磁带，磁性录音介质含在聚氨酯树脂粘合剂中，该粘合剂是由聚异氰酸酯与聚酯中间体和双酚A衍生的鏈增长剂的掺合物的反应产物制成的。
到现在为止，磁性记录带已制成并用于各个方面如录音，录相，计算机等。虽然这种磁性记录带适用于各种情况，但其缺乏高的抗张强度，在弱溶剂系统如酮类（甲乙酮）中溶解性较差，聚合物中磁性颗粒的分散性较差。
Kolycheck的美国专利4，643，949涉及磁性记录带，其中含有磁性颗粒的粘合剂是二异氰酸酯与羟基封端聚碳酸酯和鏈增长剂的掺合物的反应产物。没有提到双酚A型鏈增长剂。
其中含有磁性颗粒（如氧化铁，钴改性氧化铁，氧化铬等）的磁带粘合剂是由羟基封端聚酯中间体如聚乙二醇四亚甲基己二酸酯（poly（tetramethylene adipate glycol））和一种特殊类型的鏈增长剂（即双酚A的衍生物）的掺合物与聚异氰酸酯反应制成的。这种粘合剂使其中的磁性颗粒具有良好的分散性并且其在弱溶剂如各种酮类中具有良好的溶解性。
本发明的磁性记录带含有通常具有良好抗张强度的薄膜形式的适当基底和至少在磁带一面上的含有磁性颗粒的聚氨酯粘合剂涂层。基底通常可由任何本领域已知的以及文献中所述的材料如聚酯等制成。聚氨酯树脂一般包封磁性颗粒并且将磁性颗粒粘结到基底上。磁性
颗粒可以是任何本领域或从文献上已知的类型，较好的颗粒包括γ氧化铁，即Fe2O3;钴改性Fe2O3，氧化铬，即CrO2;金属颗粒;铁酸钡等。磁性颗粒的粒度一般小于1.0μm，最好为0.5μm或更小。磁性颗粒的量一般占颗粒和聚氨酯树脂总重量的60%～85%左右，对于录音用的磁带，颗粒量一般应为65%～75%左右，对于录相用的磁带，颗粒量一般应为70%～80%左右，对于计算机用的磁带，磁性颗粒的量一般应为75%～80%左右。
本发明的聚氨酯树脂是通过聚异氰酸酯与羟基封端聚酯中间体和双酚A衍生物型鏈增长剂的掺合物反应制成的。
羟基封端聚酯中间体一般为线性聚酯，其重均分子量约为500-5，000，最好为700-2，000左右，酸值一般小于1.3，最好小于1.0，聚酯可用任何常规方法制备，如通过二羧酸或其酐与二醇的酯化反应制备。二醇与酸的摩尔比最好大于1摩尔，以便获得末端羟基占优势的线性鏈。适宜的酸为二羧酸或其酐，其中烃基部分（即非羧基部分或酐部分）是脂族烃，如具有2-18个碳原子（最好有4个碳原子）的亚烷基，或芳烃，或具有6-15个碳原子的脂族（最好是烷基）取代的芳烃。因此，己二酸是较好的酸，其它适用的酸的例子包括琥珀酸，庚二酸，辛二酸，壬二酸，癸二酸，1，12-十二双酸，间苯二酸等。所用的二醇最好含有4-10个碳原子，优选丁二醇，特别是1，4-丁二醇。其它适用的二醇的例子包括五亚甲基二醇，六亚甲基二醇，八亚甲基二醇，1，4-环己烷二甲醇等。因此优选的聚酯中间体是聚乙二醇四亚甲基己二酸酯。
所用的聚异氰酸酯一般为二异氰酸酯，如具有2-12个碳原子
的脂族二异氰酸酯，或具有6-18个碳原子的芳族或脂族取代的芳族或芳族取代的脂族二异氰酸酯等。具体的二异氰酸酯的实例包括各种脂族二异氰酸酯如二异氰酸四亚甲酯;各种环脂族二异氰酸酯如二异氰酸环己酯等。芳族取代的脂族二异氰酸酯或脂族取代的芳族二异氰酸酯的实例包括各种二异氰酸苯酯，二异氰酸甲苯酯，各种二异氰酸二芳酯，如二异氰酸4，4′-二苯基甲酯，一种称为MDI的二异氰酸酯，二异氰酸二氯二苯基甲酯，二异氰酸二苯基二甲基甲酯，二异氰酸二苄酯，二异氰酸二苯醚酯等。所用聚异氰酸酯的摩尔数须与羟基封端聚酯和鏈增长剂摩尔数的总和基本相等。由此，所形成的聚氨酯树脂实际上没有NCO（异氰酸酯）基团。一般，聚异氰酸酯的摩尔数与羟基封端聚酯和鏈增长剂的摩尔数之比为约0.95-1.01∶1，较好为0.97-1.005∶1。
本发明所用鏈增长剂是特定类型的，从而使粘合剂在弱溶剂中具有良好的溶解性和使磁性颗粒在聚氨酯树脂中具有良好的分散性。具体讲，鏈增长剂是双酚A的衍生物，可由下式表示：
（式Ⅰ）
式中R1和R2各自表示2-4个碳原子的亚烷基，以具有2个碳原子为宜，即是亚乙基。
相对于每摩尔羟基封端聚酯中间体，鏈增长剂的用量一般为约0.1-10摩尔，较好为约0.5-5摩尔，最好为约0.4-1.7摩尔。如前所述，使用羟基封端聚酯中间体和鏈增长剂的掺合物，使
之与聚异氰酸酯反应。
如上所述，本发明的聚氨酯树脂是上述一种或多种聚异氰酸酯与一种或多种羟基封端聚酯中间体和一种或多种鏈增长剂的掺合物的反应产物。反应温度一般至少为100℃，可高到150℃。发生无规共聚反应，得到非常适合于掺入磁性颗粒并粘结在基底上形成磁带的聚氨酯树脂。
除磁性颗粒和聚酯树脂以外，在形成粘合剂时还可使用其它常规添加剂。例如，可以使用各种润湿剂，其用量相对于每100份（重量）聚氨酯树脂和磁性颗粒为约1-5份（重量）。有大量的润湿剂可被采用，具体实例包括大豆卵磷脂，萘锌，合成鲸油，一、二和三油酸酯，三乙醇胺，木素磺酸，磺基琥珀酸二辛酯等。相对于每100份（重量）树脂和磁性颗粒，可以使用约1-5份（重量）各种润滑剂，适宜的实例包括各种硅氧烷，如氟化烃油，长鏈脂肪酸，钙、锂和镁的硬脂酸盐等。相对于每100份（重量）树脂和磁性颗粒，可以使用约1-5份（重量）适宜的交联剂，如MONDUR CB-75（Mobay Chemicals生产的聚异氰酸酯产品）和磨料，如氧化铝等。还可以使用有效量的炭黑提高磁带的导电性。
如上所述，磁带包括基底（须是柔性的）和基底上的磁性颗粒层，磁性颗粒包含在将其粘结在基底上的粘合剂中。基底典型的是适当厚度的聚对苯二甲酸乙酯，当然也可采用其它热塑柔性基底。磁带的制做方法可以是，将磁性颗粒混于粘合剂和指定的添加剂的溶剂溶液中形成磁性分散，将磁性分散-粘合剂溶液涂于柔性基底上，脱除溶剂后在基底上形成牢固的磁性颗粒层。换言之，磁性颗粒被聚氨酯树脂粘结在基底上。适用的溶剂包括极性溶剂，例如酮等。具体实例有四氢呋
喃，环己酮等。根据本发明，各种稀释剂可与溶剂（例如甲苯，二甲苯，甲基异丁基酮等）一起使用。
本发明另一意想不到的效果是当将磁性颗料混入本发明的聚氨酯树脂时可使磁性颗粒分散良好。这一良好的分散效果示于下面的实施例中。
实施例1
将1摩尔分子量为850的聚乙二醇四亚甲基己二酸酯在65℃与1.26摩尔Dianol 22（Akzo Chemical生产的如式Ⅰ所示的鏈增长剂，其中R1和R2是亚乙基）混合。使这一物理混合物与2.26摩尔二异氰酸亚甲基双二苯酯（MDI）经标准的高温无规熔融聚合步骤反应。聚合步骤包括分别将聚酯/Dianol和MDI加热至约100℃，然后将组分混合。反应是放热的，在约1-6分钟内将温度升至约200℃-250℃，在此期间发生聚合反应，粘度增高表明了反应的发生。所得聚氨酯树脂以15%甲乙酮溶液测量，其粘度为300-400CPS。用DSC测得的二次加热周期玻璃化温度为38℃。
实施例2
实施例2的方法与实施例1相似，不同之处是使用0.88摩尔Dianol 22和1.88摩尔MDI。所得聚氨酯以15%甲乙酮溶液测量，其粘度为200-400CPS。用DSC测得的二次加热周期玻璃化温度为19℃。
实施例3
录音带
配方 重量份
磁性氧化物，Pfizer 2228H 77.0
（Pfizer产品）
分散剂 2.5
聚氨酯（实施例1） 17
氯乙稀-乙酸乙烯酯-乙烯醇共聚物 3
（VAGH，联合碳化物公司产品）
润滑剂 0.5
四氢呋喃/环己酮（50/50）混合物 溶剂
将上述组分混合，将混合物分散于二级研磨过程以确定磁性氧化物的分散性。将所得混合物涂于厚度为12.5μm的聚对苯二甲酸乙酯基底上，涂层厚度为5μm，然后干燥。检验所得带膜的表面反射和磁性性能。
实施例4
录音带
使用实施例2制备的聚氨酯树脂，以与实施例3相同的方式制备录音带涂层。
实施例5
录音带
以与实施例3相同的方式制备录音带，不同之处是使用的聚氨酯树脂为ESTANE 5701（BFG oodrich产品）。这种录音带涂层用作为分散性参考例。
实施例6
录相带
配方 重量份
磁性氧化物，Pfizer3070 80
（Pfizer产品）
磨料（Al2O3） 1.5
分散剂 2.0
炭黑（10mμm） 1.5
聚氨酯（实施例1） 11
VAGH 3
润滑剂 1.0
四氢呋喃/环己酮（50/50）混合物 溶剂
将上述组分混合，将混合物分散于二级研磨过程以确定磁性氧化物的分散性。将所得混合物涂于厚度为12.5μm的聚对苯二甲酸乙酯基底上，涂层厚度为5μm，然后干燥。检验所得带膜的表面反射和磁性性能。
实施例7
录相带
使用实施例2制备的聚氨酯树脂，以与实施例6相同的方式制备录相带涂层。
实施例8
录相带
以与实施例6相同的方式制备录相带，不同之处是使用的聚氨酯树脂为ESTANE 5701（BFGoodrich）。这种录相带涂层用作为分散性参考例。
实施例9
计算机磁带
配方 重量份
磁性氧化物，Pfi er 2228 75
（Pfi er产品）
磨料（Al2O3） 2
分散剂 3
炭黑（30mμm） 2
聚氨酯（实施例1） 13
VAGH 3
润滑剂 1
四氢呋喃/环己酮（50/50）混合物 溶剂
将上述组分混合，将混合物分散于二级研磨过程以确定磁性氧化物的分散性。将所得混合物涂于厚度为12.5μm的聚对苯二甲酸乙酯基底上，涂层厚度为5μm，然后干燥。检验所得带膜的表面反射和磁性性能。
实施例10
计算机磁带
使用实施例2制备的聚氨酯树脂，以与实施例9相同的方式制备计算机磁带涂层。
实施例11
计算机磁带
以与实施例9相同的方式制备计算机磁带，不同之处是使用的聚
氨酯树脂为ESTANE 5701（BFGoodrich产品）。这种计算机磁带涂层用作为分散性参考例。
通过用光泽计测量实施例3-11所得各种磁带的表面反射性并用B-H计测量其磁性来测定磁带的分散性。这些是磁性学工业中已知的标准试验装置。结果示于表1。在录音、录相和计算机磁带的实例中，使用本发明聚氨酯树脂所获分散性都优于用市售聚氨酯所获分散性。
表1
用途 实施例 60°光泽 磁性
OR SR Hc SFD
录音带 3 28 2.4 0.866 339 0.33
4 31 2.4 0.870 339 0.33
5（对照） 21 1.1 0.620 321 0.43
录相带 6 65 2.1 0.860 712 0.39
7 69 2.2 0.864 712 0.41
8（对照） 60 1.8 0.825 705 0.47
计算机带 9 55 2.2 0.829 337 0.41
10 49 1.9 0.792 349 0.44
11（对照） 34 1.6 0.742 346 0.54
注：OR：定向比
SR：矩形比
Hc：矫顽磁性，Oe
SFD：转换场分布
上述实施例是实施本发明的优选方案和最佳实施方式，本发明的范围不受其限制。
Claims (13)
1、一种其磁性颗粒在聚氨酯树脂粘合剂中具有良好分散性的磁带，包括基底，磁性颗粒和将磁性颗粒粘结于基底上的粘合剂；所述粘合剂含有聚异氰酸酯与羟基封端聚酯中间体和双酚A衍生的链增长剂的掺合物的反应产物；所述的聚异氰酸酯是总数为2-12个碳原子的脂族二异氰酸酯，或总数为6-18个碳原子的芳族取代的脂族二异氰酸酯或脂族取代的芳族二异氰酸酯；所述聚酯中间体由二羧酸或其酐(其烃基部分是2-18个碳原子的脂族，6-15个碳原子的芳族或脂族取代的芳族)和4-10个碳原子的二醇制备，其重均分子量约为500-5000；所述链增长剂具有下式结构：
式中R1和R2各自表示2-4个碳原子的亚烷基，其用量为约0.1-10摩尔/每摩尔所述聚酯中间体；其中所述的二异氰酸酯的摩尔数与所述聚酯中间体和链增长剂摩尔总数之比为约0.95-1.01∶1。
2、权利要求1所述的磁带，其中所述链增长剂的R1和R2是亚乙基，所述聚酯中间体的重均分子量为约700-2000，其酸值为1.3或更低。
3、权利要求1所述的磁带，其中所述磁性颗粒的用量是磁性颗粒和聚氨酯树脂总重量的约60-85%，所述聚酯中间体的酸值为1.0或更低。
4、权利要求3所述的磁带，其中所述链增长剂的用量为约0.5-5摩尔/每摩尔聚酯中间体，所述二异氰酸酯是MDI。
5、权利要求4所述的磁带，其中所述聚酯是聚乙二醇四亚甲基己二酸酯。
6、权利要求5所述的磁带，其中所述链增长剂的用量为约0.4-1.7摩尔/每摩尔所述聚酯中间体，MDI的摩尔数与聚酯中间体和链增长剂摩尔总数之比为约0.97-1.005∶1。
7、权利要求1所述的磁带，该磁带是录相带。
8、权利要求2所述的磁带，该磁带是录相带。
9、权利要求5所述的磁带，该磁带是录相带。
10、权利要求1所述的磁带，该磁带是录音带。
11、权利要求5所述的磁带，该磁带是录音带。
12、权利要求1所述的磁带，该磁带是计算机磁带。
13、权利要求5所述的磁带，该磁带是计算机磁带。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US308,061 | 1989-02-08 | ||
| US07/308,061 US4988574A (en) | 1989-02-08 | 1989-02-08 | Thermoplastic polyurethanes having improved binder properties for magnetic media recording |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046237A CN1046237A (zh) | 1990-10-17 |
| CN1021154C true CN1021154C (zh) | 1993-06-09 |
Family
ID=23192379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90100608A Expired - Fee Related CN1021154C (zh) | 1989-02-08 | 1990-02-08 | 用于磁性介体记录的具有改善的粘合特性的热塑性聚氨酯 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4988574A (zh) |
| JP (1) | JPH02289922A (zh) |
| KR (1) | KR100190592B1 (zh) |
| CN (1) | CN1021154C (zh) |
| MY (1) | MY106230A (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2843038B2 (ja) * | 1988-09-24 | 1999-01-06 | 日立マクセル株式会社 | 磁気記録媒体 |
| DE4109668A1 (de) * | 1991-03-23 | 1992-09-24 | Bayer Ag | Isocyanatfreie oligomere urethanharze |
| DE4445174A1 (de) * | 1994-01-12 | 1995-07-13 | Basf Magnetics Gmbh | Als vernetzbare Bindemittelkomponente geeignete Massen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493749A (en) * | 1966-05-23 | 1970-02-03 | Packard Instrument Co Inc | Counting statistics in radioactive sampling apparatus by sample rotation |
| GB1477633A (en) * | 1973-08-23 | 1977-06-22 | Bostik Ltd | Adhesives |
| US4643949B1 (en) * | 1983-04-08 | 1993-05-18 | The B.F. Goodrich Company | Magnetic recording tape |
| US4442282A (en) * | 1983-06-20 | 1984-04-10 | The B. F. Goodrich Company | Polyurethane covered golf balls |
| US4842942A (en) * | 1984-08-15 | 1989-06-27 | Toyo Boseki Kabushiki Kaisha | Magnetic recording medium |
| US4568611A (en) * | 1985-04-03 | 1986-02-04 | Morton Thiokol, Inc. | Polyester-polyurethane composition and use thereof |
| US4775593A (en) * | 1987-06-09 | 1988-10-04 | Hoechst Celanese Corporation | Flexible magnetic recording media having superior peel strength |
-
1989
- 1989-02-08 US US07/308,061 patent/US4988574A/en not_active Expired - Lifetime
-
1990
- 1990-02-07 JP JP2026215A patent/JPH02289922A/ja active Pending
- 1990-02-08 KR KR1019900001485A patent/KR100190592B1/ko not_active IP Right Cessation
- 1990-02-08 CN CN90100608A patent/CN1021154C/zh not_active Expired - Fee Related
- 1990-02-08 MY MYPI90000203A patent/MY106230A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4988574A (en) | 1991-01-29 |
| MY106230A (en) | 1995-04-29 |
| KR900013534A (ko) | 1990-09-06 |
| KR100190592B1 (ko) | 1999-06-01 |
| CN1046237A (zh) | 1990-10-17 |
| JPH02289922A (ja) | 1990-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4842942A (en) | Magnetic recording medium | |
| CN87102398A (zh) | 用于磁性记录媒介的全氟聚醚基内润滑剂 | |
| US4786557A (en) | Magnetic recording medium of continuous form | |
| US6545119B2 (en) | Magnetic recording media and thermoplastic polyurethane resins therefor | |
| CN1120061A (zh) | 用于磁性介质的粘合剂 | |
| CN1021154C (zh) | 用于磁性介体记录的具有改善的粘合特性的热塑性聚氨酯 | |
| WO1994009491A1 (en) | Magnetic recording medium and production method thereof | |
| CN1090665C (zh) | 含氨烷基膦酸盐的磁性记录粘合剂 | |
| US4152484A (en) | Magnetic recording media | |
| EP0368172B1 (en) | A magnetic recording medium | |
| EP0463806B1 (en) | Vinyl-sulfonated and non-sulfonated hydroxy functional polyurethane copolymers prepared from macromonomers and their use in magnetic recording media | |
| EP0873820A2 (en) | Laping tape | |
| JP3267731B2 (ja) | 熱可塑性ポリウレタン樹脂組成物 | |
| JPS6069833A (ja) | 裏打層を有する磁気記録担体の製造方法 | |
| JPS6243830A (ja) | 放射線硬化型磁気記録媒体 | |
| JP3997446B2 (ja) | 磁気記録媒体 | |
| JP2867399B2 (ja) | 磁気記録媒体 | |
| JPH0632866A (ja) | 熱可塑性ポリウレタン | |
| JPS605416A (ja) | 磁気記録媒体 | |
| JPH06100650A (ja) | 熱可塑性ポリウレタン | |
| JPH031727B2 (zh) | ||
| JPH06248045A (ja) | 熱可塑性ポリウレタン | |
| JPH0256727B2 (zh) | ||
| JPH06287268A (ja) | 熱可塑性ポリウレタン | |
| JPH10255253A (ja) | 磁気記録媒体 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PMD HOLDING CO.,LTD. Free format text: FORMER OWNER: B.F.GOODRICH CO. (US) 500 SOUTH MAIN STREET AKRON, OHIO 44318, USA Effective date: 20020111 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: THE NORWON IP HOLDINGS CORP. Free format text: FORMER NAME OR ADDRESS: PMD HOLDING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: NOVEON IP HOLDINGS Corp. Patentee before: PMD Holdings |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20020111 Patentee after: PMD Holdings Patentee before: The B. F. Goodrich Co. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |