SU649336A3 - Magnetic tape and method of manufacturing same - Google Patents

Magnetic tape and method of manufacturing same

Info

Publication number
SU649336A3
SU649336A3 SU752197010A SU2197010A SU649336A3 SU 649336 A3 SU649336 A3 SU 649336A3 SU 752197010 A SU752197010 A SU 752197010A SU 2197010 A SU2197010 A SU 2197010A SU 649336 A3 SU649336 A3 SU 649336A3
Authority
SU
USSR - Soviet Union
Prior art keywords
magnetic tape
manufacturing same
magnetic
tape
aqueous
Prior art date
Application number
SU752197010A
Other languages
Russian (ru)
Inventor
Шенафингер Эдуард (Италия)
Дайгнер(Фрг) Пауль
Кестер(Фрг) Эберхард
Олингер(Фрг) Манфред
Шефер(Фрг) Дитер
Штумпфи(Фрг) Вернер
Аморт(Фрг) Юрген
Зайлер(Фрг) Клаус-Дитрих
Нестлер(Фрг) Гейнц
Амброс(Фрг) Отто
Original Assignee
Басф Аг (Фирма)
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.)
Filing date
Publication date
Application filed by Басф Аг (Фирма) filed Critical Басф Аг (Фирма)
Application granted granted Critical
Publication of SU649336A3 publication Critical patent/SU649336A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/34—Compounds of chromium
    • C09C1/346—Chromium oxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/34—Compounds of chromium
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12—Treatment with organosilicon compounds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Description

II

Изобретение огносигс  к магнитной записи, а именно к 1лагнигным ленгам иThe invention of ognosigs to magnetic recording, namely to 1 langami and

способам их изгоговлени .ways of their conspiracy.

Иавесгна магнитна  лента, содержаща Yavezna magnetic tape containing

рабочий слой в виде сплошной магнитной металлической пленки, наносимой на немагнитную основу .путем;испарени  смеси металлов в вакууме ij . Этой магнитной ленте свойственна относительно невысока  эластичность и изготовление ее сопр жено со значительными трудност ми.the working layer is in the form of a continuous magnetic metal film applied on a nonmagnetic basis by; evaporation of a mixture of metals in a vacuum ij. This magnetic tape is characterized by relatively low elasticity and its manufacture is associated with considerable difficulties.

Известна также магнитна  лента, содержаща  рабочий слой, размещенный на основе из полиэтилентерефтапата и выполненный в виде магнитных частиц из двуокиси хрома, распределенных в св зующем веществе - Известную магнитную ленту изготавливают путем обработки поверхности магнитных частиц из двуокиси хрома, распределенных в жидкости, последующей сушки и нанесени  результата их диспергировани  в св зутацем веществе с добавками на основу из пол этилентерефталата . Подобна  магнитна Also known is a magnetic tape containing a working layer placed on a base made of polyethylene terephthalate and made in the form of magnetic particles of chromium dioxide distributed in the binder. applying the result of their dispersion in connection with the substance with additives on the basis of ethylene terephthalate. Like a magnetic

лента обладает высокой эластичностью. Кроме того изготовление подобной магнитной ленты осуществл етс  достаточно простыми средствами.the tape has a high elasticity. In addition, the manufacture of such a magnetic tape is carried out by fairly simple means.

Цель изобретени  - уменьшение нестабильности магнитных свойств магнитной ленты.The purpose of the invention is to reduce the instability of the magnetic properties of a magnetic tape.

Это достигаетс  за счет того, что в магнитной ленте магнитные частицы изThis is due to the fact that in a magnetic tape magnetic particles from

двуокиси хрома снабжены оболочками, вь1полненными из продукта гидролиза силана общей формулыchromium dioxide is provided with shells filled from the hydrolysis product of silane of the general formula

Rj,5HOR). ,Rj, 5HOR). ,

где R - органический радикал с копичествсдал атомов углерода от 8 до 18;where R is an organic radical with carbon number from 8 to 18;

. R -алифатический органический радикал с количеством атомов углерода от 1 до 8; Я - целое число от 1 до 3.. R-aliphatic organic radical with the number of carbon atoms from 1 to 8; I am an integer from 1 to 3.

При этом в процессе изгоговлени  магнитной ленты в качестве жидкости используют водную, спиртовую или водно-спиртовую среду, обработку поверхности магAt the same time, in the process of exaggeration of a magnetic tape, an aqueous, alcoholic or aqueous-alcoholic medium, surface treatment of mag

SU752197010A 1974-12-18 1975-12-10 Magnetic tape and method of manufacturing same SU649336A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742459766 DE2459766A1 (en) 1974-12-18 1974-12-18 Stabilised chromium dioxide magnetic pigments - obtd. by treatment with a hydrolysis prod. of an alkoxy silane and heat treating the prod.

Publications (1)

Publication Number Publication Date
SU649336A3 true SU649336A3 (en) 1979-02-25

Family

ID=5933678

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752197010A SU649336A3 (en) 1974-12-18 1975-12-10 Magnetic tape and method of manufacturing same

Country Status (3)

Country Link
BE (1) BE836782A (en)
DE (1) DE2459766A1 (en)
SU (1) SU649336A3 (en)

Also Published As

Publication number Publication date
BE836782A (en) 1976-06-18
DE2459766A1 (en) 1976-07-01

Similar Documents

Publication Publication Date Title
ES452361A1 (en) Process for manufacture of 9-amino-9-deoxyclavulanates
JPS5278953A (en) Polyester films
SU649336A3 (en) Magnetic tape and method of manufacturing same
FR2295997A1 (en) OXIDIZABLE PARTICULAR MATTER PROTECTED BY AN ORGANIC COATING AND ITS PREPARATION PROCESS
JPS51131614A (en) Magnetic tape cassette
JPS5278954A (en) Polyester films
FR2299038B1 (en)
JPS52125306A (en) Production of magnetic recording media
JPS53132310A (en) Production of magnetic recording media
JPS5361310A (en) Production of magnetic recording medium
JPS5634139A (en) Magnetic recording medium
JPS5387706A (en) Manufacture of magnetic recording medium
JPS5242281A (en) Production method of adhesive wire
JPS53138477A (en) Polyethylene terephthalate film
JPS5284706A (en) Production of magnetic recording medium
JPS51112180A (en) Method for formation of the silcon oxide coated film
AU447027B2 (en) Process for improving the property of the surface of an optical material by providing a coating and an article improved thereby
JPS5371820A (en) Production of magnetic head
CH341581A (en) Process for the production of a permanent magnet with an IHC value of at least 800 Oersted and magnet produced by this process
JPS51133492A (en) Process for preparing white soy by adding alcohol
JPS5374005A (en) Manufacture of magnetic recording medium
JPS6453341A (en) Production of magnetic recording medium
JPS51117983A (en) A process for producing a compound film
JPS52119204A (en) Magnetic disc production
KR830004310A (en) Method for producing PENAM derivative with antibacterial activity