BE798513A - Dioxyde de chrome ferromagnetique modifie et son procede de preparation - Google Patents

Dioxyde de chrome ferromagnetique modifie et son procede de preparation

Info

Publication number: BE798513A
Authority: BE; Belgium
Prior art keywords: preparation process; modified ferromagnetic; chrome dioxide; dioxide; ferromagnetic chrome
Prior art date: 1972-04-22

Application number

BE130243A

Other languages

English (en)

French (fr)

Inventor

U Montiglio

P Aspes

G Basile

Original Assignee

Montedison Spa

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.)

1972-04-22

Filing date

1973-04-20

Publication date

1973-10-22

1973-04-20 Application filed by Montedison Spa filed Critical Montedison Spa

1973-10-22 Publication of BE798513A publication Critical patent/BE798513A/xx

Links

VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
230000005294 ferromagnetic effect Effects 0.000 title 1
238000002360 preparation method Methods 0.000 title 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
- G11B5/706—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 composition of the magnetic material
- G11B5/70626—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 composition of the magnetic material containing non-metallic substances
- G11B5/70636—CrO2
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
- C01G37/027—Chromium dioxide
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/74—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by peak-intensities or a ratio thereof only
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Hard Magnetic Materials (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Magnetic Record Carriers (AREA)

BE130243A 1972-04-22 1973-04-20 Dioxyde de chrome ferromagnetique modifie et son procede de preparation BE798513A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT23466/72A IT956230B (it)	1972-04-22	1972-04-22	Composizione di biossido di cromo ferromagnetico modificato e p oces so di preparazione

Publications (1)

Publication Number	Publication Date
BE798513A true BE798513A (fr)	1973-10-22

Family

ID=11207341

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE130243A BE798513A (fr)	1972-04-22	1973-04-20	Dioxyde de chrome ferromagnetique modifie et son procede de preparation

Country Status (17)

Country	Link
US (1)	US3874923A (2)
JP (1)	JPS5216718B2 (2)
AT (1)	AT340369B (2)
AU (1)	AU469323B2 (2)
BE (1)	BE798513A (2)
CA (1)	CA998240A (2)
CS (1)	CS177128B2 (2)
DD (1)	DD104068A5 (2)
DE (1)	DE2319572A1 (2)
ES (1)	ES413927A1 (2)
FR (1)	FR2181888B1 (2)
GB (1)	GB1426526A (2)
IT (1)	IT956230B (2)
NL (1)	NL158960C (2)
SE (1)	SE389422B (2)
SU (1)	SU618032A3 (2)
ZA (1)	ZA732605B (2)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4128691A (en) *	1974-02-21	1978-12-05	Fuji Photo Film Co., Ltd.	Process for the production of a magnetic recording medium
IT1012202B (it) *	1974-05-09	1977-03-10	Montedison Spa	Procedimento per la produzione di biossido di cromo ferromagnetico
IT1045191B (it) *	1975-10-31	1980-05-10	Montedison Spa	Procedimento per la produzione di biossido di cromo ferromagnetico
JPS54135416A (en) *	1978-04-12	1979-10-20	Kuninori Maruyama	Portion material for roof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1467328B2 (de) *	1963-07-24	1971-06-16	Farbenfabriken Bayer AG, 5090 Le verkusen	Ferromagnetisches modifiziertes chromdioxid
DE1771867B1 (de) *	1968-02-23	1972-02-03	Matsushita Electric Ind Co Ltd	Tellur calcium modifiziertes chromdioxid
GB1312812A (en) *	1969-06-20	1973-04-11	Nippon Chemical Ind	Process for preparing magnetic chromium dioxide
JPS4843436B1 (2) *	1970-10-20	1973-12-18

1972
- 1972-04-22 IT IT23466/72A patent/IT956230B/it active
1973
- 1973-04-11 US US350033A patent/US3874923A/en not_active Expired - Lifetime
- 1973-04-13 NL NL7305188A patent/NL158960C/xx active
- 1973-04-13 SE SE7305260A patent/SE389422B/xx unknown
- 1973-04-16 AU AU54557/73A patent/AU469323B2/en not_active Expired
- 1973-04-16 ZA ZA732605A patent/ZA732605B/xx unknown
- 1973-04-17 FR FR7313860A patent/FR2181888B1/fr not_active Expired
- 1973-04-18 DE DE2319572A patent/DE2319572A1/de active Pending
- 1973-04-19 GB GB1918673A patent/GB1426526A/en not_active Expired
- 1973-04-19 AT AT353173A patent/AT340369B/de not_active IP Right Cessation
- 1973-04-19 CA CA169,929A patent/CA998240A/en not_active Expired
- 1973-04-19 ES ES413927A patent/ES413927A1/es not_active Expired
- 1973-04-20 CS CS2897A patent/CS177128B2/cs unknown
- 1973-04-20 BE BE130243A patent/BE798513A/xx unknown
- 1973-04-20 SU SU731906422A patent/SU618032A3/ru active
- 1973-04-23 JP JP48046034A patent/JPS5216718B2/ja not_active Expired
- 1973-04-23 DD DD170349A patent/DD104068A5/xx unknown

Also Published As

Publication number	Publication date
NL158960C (2)	1979-05-15
ES413927A1 (es)	1976-02-01
JPS4961089A (2)	1974-06-13
AU5455773A (en)	1974-10-17
DD104068A5 (2)	1974-02-20
IT956230B (it)	1973-10-10
ATA353173A (de)	1977-04-15
SE389422B (sv)	1976-11-01
FR2181888B1 (2)	1976-11-12
CA998240A (en)	1976-10-12
CS177128B2 (2)	1977-07-29
JPS5216718B2 (2)	1977-05-11
US3874923A (en)	1975-04-01
AU469323B2 (en)	1976-02-12
GB1426526A (en)	1976-03-03
AT340369B (de)	1977-12-12
SU618032A3 (ru)	1978-07-30
DE2319572A1 (de)	1973-10-31
ZA732605B (en)	1974-03-27
NL7305188A (2)	1973-10-24
FR2181888A1 (2)	1973-12-07

Publication	Publication Date	Title
BE794594A (fr)	1973-05-16	Etoffe aiguilletee et son procede de production
BE777907A (fr)	1972-05-02	Polyurethane transparent et son procede de preparation
BR7306624D0 (pt)	1974-07-11	Material de friccao e processo para sua preparacao
BE799542A (fr)	1973-11-16	Cholesterol-oxydase et son procede de preparation,
BE806692A (fr)	1974-02-15	Combinaison et procede de fermeture
BE802335A (fr)	1974-01-14	Nouveau peptide et son procede de preparation
BR7308715D0 (pt)	1974-08-22	Composicao moldavel e respectivo processo de preparacao
MY7900188A (en)	1979-12-31	Opticaol fibers and processes for their production
BE801730A (fr)	1974-01-02	Procede de preparation de bioxyde de chrome ameliore et bioxyde de chrome ainsi obtenu
AR198994A1 (es)	1974-07-31	Aparato automatico de interrogacion e informacion
BE780219A (fr)	1972-09-04	Procede de preparation de dioxyde de chrome ferromagnetique
BE795918A (fr)	1973-08-27	Antibiotique a-25822 et procede de production
BE802937A (fr)	1974-01-30	L'antibiotique a-2315 et son procede de preparation
BE795705A (fr)	1973-08-21	Procede de preparation de polyfluoroalcools et leur application
BE809176A (fr)	1974-04-16	Tris-diorcano-orthophosphates de chrome
BE783763A (fr)	1972-11-20	Production de dioxyde de chrome ferromagnetique
BE806858A (fr)	1974-04-30	Pellicules de diazotypie et leur production
BE749818A (fr)	1970-10-30	Procede de preparation de dioxyde de chrome ferromagnetique
BE784002A (fr)	1972-11-27	Desodorisant et son procede de preparation
BE804921A (fr)	1974-03-18	Lipase microbienne et son procede de preparation
BE764472A (fr)	1971-09-20	Beta-rhodomycine v et son procede de preparation
BE801668A (fr)	1973-10-15	Amino-imidazo-isoquinoleines et amino-pyrazolo-isoquinoleines
ZA735249B (en)	1974-08-28	Dialkyl-phosphinyl-alkane sulfonates and process for their preparation
ZA732605B (en)	1974-03-27	Modified ferromagnetic chromium dioxide composition and process for its preparation
BE805717A (fr)	1974-02-01	D(-)-alpha-aminobenzylpenicillinate de pivaloyloxymethyle cristallin et son procede de preparation