CH402068A - Tête magnétique et procédé pour sa fabrication - Google Patents

Tête magnétique et procédé pour sa fabrication

Info

Publication number: CH402068A
Authority: CH; Switzerland
Prior art keywords: optionally substituted; compounds; formula; optical brightening; hydrogen
Prior art date: 1961-11-06

Application number

CH1128163A

Other languages

German (de)

English (en)

Inventor

Namenyi-Katz Laszlo

Original Assignee

Vectron Electro Physics Limite

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.)

1961-11-06

Filing date

1962-11-06

Publication date

1965-11-15

1962-11-06 Application filed by Vectron Electro Physics Limite filed Critical Vectron Electro Physics Limite

1965-11-15 Publication of CH402068A publication Critical patent/CH402068A/fr

Links

238000004519 manufacturing process Methods 0.000 title 1
238000000034 method Methods 0.000 title 1
150000001875 compounds Chemical class 0.000 claims description 25
238000005282 brightening Methods 0.000 claims description 23
230000003287 optical effect Effects 0.000 claims description 21
-1 substituted alkyl radical Chemical class 0.000 claims description 16
239000003795 chemical substances by application Substances 0.000 claims description 14
229910052739 hydrogen Inorganic materials 0.000 claims description 8
239000001257 hydrogen Substances 0.000 claims description 8
239000000463 material Substances 0.000 claims description 8
239000004753 textile Substances 0.000 claims description 8
125000003277 amino group Chemical group 0.000 claims description 7
150000005840 aryl radicals Chemical group 0.000 claims description 5
125000003107 substituted aryl group Chemical group 0.000 claims description 5
125000000217 alkyl group Chemical group 0.000 claims description 4
125000005392 carboxamide group Chemical group NC(=O)* 0.000 claims description 4
125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 claims description 4
125000002843 carboxylic acid group Chemical group 0.000 claims description 4
125000004093 cyano group Chemical group *C#N 0.000 claims description 4
150000002431 hydrogen Chemical class 0.000 claims description 4
150000001768 cations Chemical class 0.000 claims description 3
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
239000000243 solution Substances 0.000 description 8
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 7
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
229920000742 Cotton Polymers 0.000 description 6
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
239000004744 fabric Substances 0.000 description 6
239000000203 mixture Substances 0.000 description 5
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
239000002253 acid Chemical class 0.000 description 4
238000001035 drying Methods 0.000 description 4
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
125000000547 substituted alkyl group Chemical group 0.000 description 3
MLNKXLRYCLKJSS-RMKNXTFCSA-N (2e)-2-hydroxyimino-1-phenylethanone Chemical compound O\N=C\C(=O)C1=CC=CC=C1 MLNKXLRYCLKJSS-RMKNXTFCSA-N 0.000 description 2
YNRGDPQTVDWXPB-UHFFFAOYSA-N 3-(1,2,4-triazol-3-ylidene)-1,2,4-triazole Chemical class N1=NC=NC1=C1N=NC=N1 YNRGDPQTVDWXPB-UHFFFAOYSA-N 0.000 description 2
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
239000004952 Polyamide Substances 0.000 description 2
JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
125000004442 acylamino group Chemical group 0.000 description 2
125000003545 alkoxy group Chemical group 0.000 description 2
125000003118 aryl group Chemical group 0.000 description 2
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
239000000460 chlorine Substances 0.000 description 2
229910052801 chlorine Inorganic materials 0.000 description 2
239000003599 detergent Substances 0.000 description 2
150000008049 diazo compounds Chemical class 0.000 description 2
125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 2
239000006185 dispersion Substances 0.000 description 2
150000002081 enamines Chemical class 0.000 description 2
125000004494 ethyl ester group Chemical group 0.000 description 2
239000000835 fiber Substances 0.000 description 2
229910052736 halogen Inorganic materials 0.000 description 2
150000002367 halogens Chemical class 0.000 description 2
125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
230000007935 neutral effect Effects 0.000 description 2
150000007524 organic acids Chemical class 0.000 description 2
229920002239 polyacrylonitrile Polymers 0.000 description 2
229920002647 polyamide Polymers 0.000 description 2
229920000728 polyester Polymers 0.000 description 2
229920000915 polyvinyl chloride Polymers 0.000 description 2
239000004800 polyvinyl chloride Substances 0.000 description 2
UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 2
229960002218 sodium chlorite Drugs 0.000 description 2
LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
238000003756 stirring Methods 0.000 description 2
125000000542 sulfonic acid group Chemical group 0.000 description 2
DELJOESCKJGFML-DUXPYHPUSA-N (e)-3-aminobut-2-enenitrile Chemical compound C\C(N)=C/C#N DELJOESCKJGFML-DUXPYHPUSA-N 0.000 description 1
BBVIDBNAYOIXOE-UHFFFAOYSA-N 1,2,4-oxadiazole Chemical class C=1N=CON=1 BBVIDBNAYOIXOE-UHFFFAOYSA-N 0.000 description 1
WFWKNGZODAOLEO-UHFFFAOYSA-N 1-(4-Methoxyphenyl)-2-propanone Chemical compound COC1=CC=C(CC(C)=O)C=C1 WFWKNGZODAOLEO-UHFFFAOYSA-N 0.000 description 1
NOXKUHSBIXPZBJ-UHFFFAOYSA-N 1-(4-methylphenyl)propan-2-one Chemical compound CC(=O)CC1=CC=C(C)C=C1 NOXKUHSBIXPZBJ-UHFFFAOYSA-N 0.000 description 1
YQHWURFNAULYNW-UHFFFAOYSA-N 1-hydroxyimino-1-phenylpropan-2-one Chemical compound CC(=O)C(=NO)C1=CC=CC=C1 YQHWURFNAULYNW-UHFFFAOYSA-N 0.000 description 1
XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
OLFNMQURIWJIAS-UHFFFAOYSA-N 2-hydroxyimino-1-(4-methylphenyl)ethanone Chemical compound CC1=CC=C(C(=O)C=NO)C=C1 OLFNMQURIWJIAS-UHFFFAOYSA-N 0.000 description 1
FUXZRRZSHWQAAA-UHFFFAOYSA-N 5,5-dioxodibenzothiophene-3,7-diamine Chemical compound C1=C(N)C=C2S(=O)(=O)C3=CC(N)=CC=C3C2=C1 FUXZRRZSHWQAAA-UHFFFAOYSA-N 0.000 description 1
NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical group OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
IWALFGFPZJSRGX-UHFFFAOYSA-N C(C)OC(C(=O)C1=CC=CC=C1)=NO Chemical compound C(C)OC(C(=O)C1=CC=CC=C1)=NO IWALFGFPZJSRGX-UHFFFAOYSA-N 0.000 description 1
229920003043 Cellulose fiber Polymers 0.000 description 1
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical class [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
239000004115 Sodium Silicate Substances 0.000 description 1
VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
239000005708 Sodium hypochlorite Substances 0.000 description 1
GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
239000001361 adipic acid Substances 0.000 description 1
235000011037 adipic acid Nutrition 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
125000005907 alkyl ester group Chemical group 0.000 description 1
229910021529 ammonia Inorganic materials 0.000 description 1
235000011114 ammonium hydroxide Nutrition 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical compound C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 description 1
125000004432 carbon atom Chemical group C* 0.000 description 1
HJMZMZRCABDKKV-UHFFFAOYSA-N carbonocyanidic acid Chemical class OC(=O)C#N HJMZMZRCABDKKV-UHFFFAOYSA-N 0.000 description 1
229920002301 cellulose acetate Polymers 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
238000001816 cooling Methods 0.000 description 1
150000001879 copper Chemical class 0.000 description 1
239000012043 crude product Substances 0.000 description 1
FSEUPUDHEBLWJY-HWKANZROSA-N diacetylmonoxime Chemical compound CC(=O)C(\C)=N\O FSEUPUDHEBLWJY-HWKANZROSA-N 0.000 description 1
238000006193 diazotization reaction Methods 0.000 description 1
LUOGSASRTYIOCL-UHFFFAOYSA-N dibenzothiophen-1-amine Chemical compound S1C2=CC=CC=C2C2=C1C=CC=C2N LUOGSASRTYIOCL-UHFFFAOYSA-N 0.000 description 1
238000004821 distillation Methods 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
150000002429 hydrazines Chemical class 0.000 description 1
125000000717 hydrazino group Chemical group [H]N([*])N([H])[H] 0.000 description 1
150000003840 hydrochlorides Chemical class 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
239000012535 impurity Substances 0.000 description 1
150000007522 mineralic acids Chemical class 0.000 description 1
FYFYCAVDUPOEOO-UHFFFAOYSA-N n-(2-nitroethylidene)hydroxylamine Chemical compound ON=CC[N+]([O-])=O FYFYCAVDUPOEOO-UHFFFAOYSA-N 0.000 description 1
125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
239000011591 potassium Substances 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
IFIDXBCRSWOUSB-UHFFFAOYSA-N potassium;1,3-dichloro-1,3,5-triazinane-2,4,6-trione Chemical compound [K+].ClN1C(=O)NC(=O)N(Cl)C1=O IFIDXBCRSWOUSB-UHFFFAOYSA-N 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
150000003254 radicals Chemical class 0.000 description 1
239000011541 reaction mixture Substances 0.000 description 1
238000001953 recrystallisation Methods 0.000 description 1
238000006798 ring closing metathesis reaction Methods 0.000 description 1
239000012266 salt solution Substances 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000011734 sodium Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
239000001632 sodium acetate Substances 0.000 description 1
235000017281 sodium acetate Nutrition 0.000 description 1
229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
235000010288 sodium nitrite Nutrition 0.000 description 1
239000001488 sodium phosphate Substances 0.000 description 1
159000000000 sodium salts Chemical class 0.000 description 1
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
229910052911 sodium silicate Inorganic materials 0.000 description 1
235000010265 sodium sulphite Nutrition 0.000 description 1
235000019832 sodium triphosphate Nutrition 0.000 description 1
KZOJQMWTKJDSQJ-UHFFFAOYSA-M sodium;2,3-dibutylnaphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S([O-])(=O)=O)=C(CCCC)C(CCCC)=CC2=C1 KZOJQMWTKJDSQJ-UHFFFAOYSA-M 0.000 description 1
239000002904 solvent Substances 0.000 description 1
HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
229940124530 sulfonamide Drugs 0.000 description 1
150000003456 sulfonamides Chemical group 0.000 description 1
238000006277 sulfonation reaction Methods 0.000 description 1
125000001174 sulfone group Chemical group 0.000 description 1
150000003460 sulfonic acids Chemical class 0.000 description 1
150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
239000000725 suspension Substances 0.000 description 1
229920002994 synthetic fiber Polymers 0.000 description 1
239000004758 synthetic textile Substances 0.000 description 1
RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
229910000406 trisodium phosphate Inorganic materials 0.000 description 1
235000019801 trisodium phosphate Nutrition 0.000 description 1
238000005406 washing Methods 0.000 description 1
210000002268 wool Anatomy 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1272—Assembling or shaping of elements
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Magnetic Heads (AREA)
Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Plural Heterocyclic Compounds (AREA)

CH1128163A 1961-11-06 1962-11-06 Tête magnétique et procédé pour sa fabrication CH402068A (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
GB3971661A GB987695A (en)	1961-11-06	1961-11-06	Improved construction and method of manufacturing a magnetic recording head
GB4204161		1961-11-24
GB4557661		1961-12-20

Publications (1)

Publication Number	Publication Date
CH402068A true CH402068A (fr)	1965-11-15

Family

ID=27259587

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
CH1128163A CH402068A (fr)	1961-11-06	1962-11-06	Tête magnétique et procédé pour sa fabrication
CH1296762A CH403327A (fr)	1961-11-06	1962-11-06	Tête magnétique et procédé pour sa fabrication
CH1128063A CH415093A (fr)	1961-11-06	1962-11-06	Procédé de fabrication d'une tête magnétique

Family Applications After (2)

Application Number	Title	Priority Date	Filing Date
CH1296762A CH403327A (fr)	1961-11-06	1962-11-06	Tête magnétique et procédé pour sa fabrication
CH1128063A CH415093A (fr)	1961-11-06	1962-11-06	Procédé de fabrication d'une tête magnétique

Country Status (3)

Country	Link
CH (3)	CH402068A (fr)
GB (1)	GB987695A (fr)
NL (1)	NL285160A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014084192A1 (fr) *	2012-11-28	2014-06-05	株式会社テクレコ	Procédé de fabrication de module de noyau magnétique dans une tête magnétique, module de noyau magnétique dans une tête magnétique et tête magnétique

0
- NL NL285160D patent/NL285160A/xx unknown
1961
- 1961-11-06 GB GB3971661A patent/GB987695A/en not_active Expired
1962
- 1962-11-06 CH CH1128163A patent/CH402068A/fr unknown
- 1962-11-06 CH CH1296762A patent/CH403327A/fr unknown
- 1962-11-06 CH CH1128063A patent/CH415093A/fr unknown

Also Published As

Publication number	Publication date
CH403327A (fr)	1965-11-30
CH415093A (fr)	1966-06-15
NL285160A (fr)
GB987695A (en)	1965-03-31

Publication	Publication Date	Title
EP0059684A1 (fr)	1982-09-08	Dérivés amphotères de styrène
DE1279636B (de)	1968-10-10	Aufhellungsmittel
DE1008248B (de)	1957-05-16	Aufhellungsmittel
EP0019702B1 (fr)	1985-12-11	Distyrylebiphényles, leur procédé de préparation et leur utilisation pour le blanchiment optique de matières organiques, ainsi que les produits de lavage, les produits de traitement des textiles et les produits de post-traitement du linge les contenant
DE1287550B (de)	1969-01-23	Aufhellungsmittel
EP0019078A2 (fr)	1980-11-26	Distyrylbenzènes, leur procédé de préparation et leur utilisation pour le blanchiment optique de matières organiques, ainsi que les produits de lavage, les produits de traitement des textiles et les produits de post-traitement du linge qui contiennent ces distyrylbenzènes
CH402068A (fr)	1965-11-15	Tête magnétique et procédé pour sa fabrication
DE1670999C3 (de)	1979-03-15	Triazolyl-cumarine
DE1670873C3 (de)	1979-01-11	Pyrazolyl-triazolyl-cumarine
DE1519468A1 (de)	1970-03-19	3-Pyrazolyl-7-aryltriazolyl-cumarinverbindungen
EP0011824A1 (fr)	1980-06-11	Benzofurannyl-benzimidazoles, procédé pour leur préparation et leur application pour le blanchiment optique de matériaux organiques
DE2524927C3 (de)	1980-11-06	Organische Verbindungen, deren Herstellung und Verwendung
CH481974A (de)	1969-11-30	Verwendung von Bis-(v-triazolyl-(2))-dibenzothiophen-S-dioxid-Verbindungen als optische Aufhellungsmittel
DE1670828A1 (de)	1971-03-11	Aufhellungsmittel
DE1544494B1 (de)	1970-04-23	Verfahren zur Herstellung von Azofarbstoffen
DE1917740A1 (de)	1970-10-15	4-v-Triazolyl-4'-phenylstilbene
CH243868A (de)	1946-08-15	Schieblehre.
CH242865A (de)	1946-06-15	Abzugsvorrichtung von selbsttätigen Handfeuerwaffen.
DE1594851C3 (de)	1976-02-26	Aufhellungsmittel
DE1150467B (de)	1963-06-20	Verfahren zur Herstellung von Azofarbstoffen
AT227271B (de)	1963-05-10	Verfahren zur Herstellung von neuen Bis-triazinylaminostilbenverbindungen
DE1719005C3 (de)	1976-11-04	2-(4'-Carboxystyryl)-benzoxazolderivate, Verfahren zu ihrer Herstellung und ihre Verwendung als optische Aufheller
DE1090624B (de)	1960-10-13	Optische Aufhellungsmittel
DE2201857B2 (de)	1980-11-13	Verwendung von Bis-stilbenverbindungen als optische Aufhellmittel
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