ES451276A1 - Procedimiento de obtencion de una lamina dura de cloruro de polivinilo para la fabricacion de portadores de informacion sonido-imagen. - Google Patents

Procedimiento de obtencion de una lamina dura de cloruro de polivinilo para la fabricacion de portadores de informacion sonido-imagen.

Info

Publication number
ES451276A1
ES451276A1 ES451276A ES451276A ES451276A1 ES 451276 A1 ES451276 A1 ES 451276A1 ES 451276 A ES451276 A ES 451276A ES 451276 A ES451276 A ES 451276A ES 451276 A1 ES451276 A1 ES 451276A1
Authority
ES
Spain
Prior art keywords
audio
manufacture
visual information
information carriers
foil
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
Application number
ES451276A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of ES451276A1 publication Critical patent/ES451276A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
    • G11B3/707—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only for video discs with grooves

Abstract

Procedimiento de obtención de una lámina dura de cloruro de polivinilo para la fabricación de portadores de información sonido-imagen, con estrías grabadas en forma de espiral que contienen la información reproducible por palpado bajo presión, caracterizado por mezclar intensamente, en una instalación de mezclado usual, por ejemplo, en un mezclador rápido, polimerizados de cloruro de vinilo y sustancias auxiliares, pregelificar la mezcla en una amasadora a unos 140º C y realizar un calandrado final, preferentemente en una calandra de cuatro o cinco cilindros según el proceso de altas temperaturas, aproximadamente a temperaturas del cilindro de 190 a 210º C, enfriándose las láminas al abandonar la última calandra con cilindros refrigerantes.
ES451276A 1975-09-12 1976-09-06 Procedimiento de obtencion de una lamina dura de cloruro de polivinilo para la fabricacion de portadores de informacion sonido-imagen. Expired ES451276A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752540654 DE2540654A1 (de) 1975-09-12 1975-09-12 Kunststoffolie zur herstellung von bild-ton-informationstraegern

Publications (1)

Publication Number Publication Date
ES451276A1 true ES451276A1 (es) 1978-08-16

Family

ID=5956278

Family Applications (1)

Application Number Title Priority Date Filing Date
ES451276A Expired ES451276A1 (es) 1975-09-12 1976-09-06 Procedimiento de obtencion de una lamina dura de cloruro de polivinilo para la fabricacion de portadores de informacion sonido-imagen.

Country Status (14)

Country Link
US (1) US4071490A (es)
JP (1) JPS5236003A (es)
AT (1) AT348786B (es)
BE (1) BE846145A (es)
BR (1) BR7605971A (es)
CA (1) CA1092290A (es)
CH (1) CH622119A5 (es)
DE (1) DE2540654A1 (es)
ES (1) ES451276A1 (es)
FR (1) FR2324083A1 (es)
GB (1) GB1557715A (es)
IT (1) IT1070596B (es)
NL (1) NL7609920A (es)
SE (1) SE411262B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818490C3 (de) * 1978-04-27 1985-06-27 Teldec Telefunken-Decca-Schallplatten Gmbh, 2000 Hamburg Preßmasse für die Herstellung formstarrer, scheibenförmiger Informationsträger
JPS63183949A (ja) * 1978-08-28 1988-07-29 デイスコビジョン　アソシエイツ ポリメチルメタクリレート材料
JPS5532298A (en) * 1978-08-28 1980-03-06 Mca Disco Vision Producing video disk structure
US4329276A (en) * 1981-03-11 1982-05-11 E. I. Du Pont De Nemours And Company Molding components
US4329278A (en) * 1981-03-11 1982-05-11 E. I. Du Pont De Nemours And Company Molding compositions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2248607A1 (de) * 1972-10-04 1974-04-11 Wacker Chemie Gmbh Verfahren zur herstellung von polyvinylhalogeniden
US3922320A (en) * 1973-05-21 1975-11-25 Tenneco Chem Impact-resistant vinyl halide resin compositions containing a styrene-butadiene-alkyl methacrylate polymer and a styrene-acrylonitrile copolymer
US3960790A (en) * 1974-03-25 1976-06-01 Rca Corporation Disc record and method of compounding disc record composition
US3975321A (en) * 1974-05-13 1976-08-17 Air Products And Chemicals, Inc. Sound reproduction compositions

Also Published As

Publication number Publication date
SE411262B (sv) 1979-12-10
JPS5236003A (en) 1977-03-19
DE2540654A1 (de) 1977-03-17
AT348786B (de) 1979-03-12
SE7610017L (sv) 1977-03-13
NL7609920A (nl) 1977-03-15
BR7605971A (pt) 1977-08-23
BE846145A (fr) 1977-03-14
US4071490A (en) 1978-01-31
GB1557715A (en) 1979-12-12
IT1070596B (it) 1985-03-29
ATA675076A (de) 1978-07-15
CH622119A5 (es) 1981-03-13
CA1092290A (en) 1980-12-23
FR2324083A1 (fr) 1977-04-08

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