DE2235732C3 - - Google Patents
Info
- Publication number
- DE2235732C3 DE2235732C3 DE19722235732 DE2235732A DE2235732C3 DE 2235732 C3 DE2235732 C3 DE 2235732C3 DE 19722235732 DE19722235732 DE 19722235732 DE 2235732 A DE2235732 A DE 2235732A DE 2235732 C3 DE2235732 C3 DE 2235732C3
- Authority
- DE
- Germany
- Prior art keywords
- layer
- magnetic
- recording medium
- disc
- intermediate layer
- 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
- 239000000463 material Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims description 7
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- QQVIHTHCMHWDBS-UHFFFAOYSA-L isophthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC(C([O-])=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-L 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 113
- 239000002131 composite material Substances 0.000 description 19
- 230000001070 adhesive effect Effects 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 4
- 238000004049 embossing Methods 0.000 description 4
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000012815 thermoplastic material Substances 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 230000009969 flowable effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-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
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 229910000003 Lead carbonate Inorganic materials 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
- -1 Polyethylene terephthalate Polymers 0.000 description 1
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- PYLCVMVPWVLGDG-UHFFFAOYSA-N octadecyl prop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCCCCCCCCCCCCCCCCCOC(=O)C=C PYLCVMVPWVLGDG-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16391571A | 1971-07-19 | 1971-07-19 | |
| US16391571 | 1971-07-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2235732A1 DE2235732A1 (de) | 1973-02-01 |
| DE2235732B2 DE2235732B2 (de) | 1977-01-27 |
| DE2235732C3 true DE2235732C3 (enrdf_load_stackoverflow) | 1977-09-15 |
Family
ID=22592154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722235732 Granted DE2235732B2 (de) | 1971-07-19 | 1972-07-18 | Scheibenfoermiger schallaufzeichnungstraeger |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3772081A (enrdf_load_stackoverflow) |
| JP (1) | JPS5223721B1 (enrdf_load_stackoverflow) |
| CA (1) | CA958634A (enrdf_load_stackoverflow) |
| DE (1) | DE2235732B2 (enrdf_load_stackoverflow) |
| FR (1) | FR2146334B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1403383A (enrdf_load_stackoverflow) |
| SE (1) | SE381941B (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874586A (en) * | 1972-12-18 | 1975-04-01 | Addressograph Multigraph | Information-carrying article and reading apparatus and method |
| US4515830A (en) * | 1983-11-29 | 1985-05-07 | Rca Corporation | Solvent-cast capacitive high density information disc |
| JPH03503243A (ja) * | 1988-03-07 | 1991-07-25 | レイ‐マードン・プロプライアトリー・リミテッド | マイクロ波相互作用積層体 |
| US4935835A (en) * | 1988-11-10 | 1990-06-19 | Insite Peripherals, Inc. | Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature |
| US5589247A (en) * | 1992-12-22 | 1996-12-31 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having an embossed backcoat layer |
| US5912791A (en) * | 1997-03-14 | 1999-06-15 | Seagate Technology, Inc. | Landing zone design for a magnetic disc |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501126A (en) * | 1946-10-18 | 1950-03-21 | Indiana Steel Products Co | Magnetic record medium |
| US2857476A (en) * | 1953-07-22 | 1958-10-21 | Joseph P Kleiber | System of electro-magnetic recording |
| US2844665A (en) * | 1954-04-15 | 1958-07-22 | Sound Engineering | Magnetic recording device |
| US3159078A (en) * | 1954-07-09 | 1964-12-01 | Kalart Co Inc | Device for viewing a photographic slide and reproducing intelligence associated therewith |
| US2819186A (en) * | 1956-01-19 | 1958-01-07 | Reeves Soundcraft Corp | Magnetic recording tape |
| US3149996A (en) * | 1960-11-16 | 1964-09-22 | Basf Ag | Magnetic record member |
| NL131590C (enrdf_load_stackoverflow) * | 1963-09-13 | 1900-01-01 | ||
| US3502761A (en) * | 1967-09-25 | 1970-03-24 | Panayotis C Dimitracopoulos | Method of forming magnetic record discs |
| US3566356A (en) * | 1968-02-29 | 1971-02-23 | Minnesota Mining & Mfg | Magnetic recording document and method |
| US3627330A (en) * | 1969-10-30 | 1971-12-14 | Panayotis C Dimitracopoulos | Pregrooved magnetic tracks |
-
1971
- 1971-07-19 US US00163915A patent/US3772081A/en not_active Expired - Lifetime
-
1972
- 1972-06-22 CA CA145,449A patent/CA958634A/en not_active Expired
- 1972-07-07 SE SE7208994A patent/SE381941B/xx unknown
- 1972-07-18 FR FR7225818A patent/FR2146334B1/fr not_active Expired
- 1972-07-18 GB GB3362872A patent/GB1403383A/en not_active Expired
- 1972-07-18 DE DE19722235732 patent/DE2235732B2/de active Granted
- 1972-07-18 JP JP47071356A patent/JPS5223721B1/ja active Pending
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