FR1074871A - Method of improving sound recording and reproducing discs - Google Patents

Method of improving sound recording and reproducing discs

Info

Publication number
FR1074871A
FR1074871A FR1074871DA FR1074871A FR 1074871 A FR1074871 A FR 1074871A FR 1074871D A FR1074871D A FR 1074871DA FR 1074871 A FR1074871 A FR 1074871A
Authority
FR
France
Prior art keywords
sound recording
improving sound
reproducing discs
reproducing
discs
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
Other languages
French (fr)
Inventor
Paul-Henri Morel
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
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 Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Application granted granted Critical
Publication of FR1074871A publication Critical patent/FR1074871A/en
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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/23—Magnetisable or magnetic paints or lacquers
    • 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
    • G11B3/58—Cleaning record carriers or styli, e.g. removing shavings or dust or electrostatic charges
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
FR1074871D 1953-02-12 1953-02-12 Method of improving sound recording and reproducing discs Expired FR1074871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1074871T 1953-02-12

Publications (1)

Publication Number Publication Date
FR1074871A true FR1074871A (en) 1954-10-11

Family

ID=9606799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1074871D Expired FR1074871A (en) 1953-02-12 1953-02-12 Method of improving sound recording and reproducing discs

Country Status (4)

Country Link
BE (1) BE521395A (en)
CH (1) CH313410A (en)
FR (1) FR1074871A (en)
GB (1) GB727456A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269739A (en) 1978-08-04 1981-05-26 Cbs Records Aps Agent for surface treatment and cleaning of records and similar objects
DE3319794A1 (en) * 1983-06-01 1984-12-06 Hoechst Ag, 6230 Frankfurt LIQUID RECORD CARE PRODUCT WITH SILICONE OIL AND ITS USE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833408A (en) * 1972-04-19 1974-09-03 Rca Corp Video discs having a methyl alkyl silicone coating
IT1123480B (en) * 1978-08-29 1986-04-30 Rca Corp LUBRICANTS FOR VIDEO DISKS
US4216970A (en) * 1979-03-05 1980-08-12 Rca Corporation Video disc lubricants
GB2127841B (en) * 1982-09-10 1986-10-15 Arwyn Oswald Thomas Charles Inclusion of oil emulsion in gramophone record cleaning fluids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269739A (en) 1978-08-04 1981-05-26 Cbs Records Aps Agent for surface treatment and cleaning of records and similar objects
DE3319794A1 (en) * 1983-06-01 1984-12-06 Hoechst Ag, 6230 Frankfurt LIQUID RECORD CARE PRODUCT WITH SILICONE OIL AND ITS USE
US4647395A (en) * 1983-06-01 1987-03-03 Hoechst Aktiengesellschaft Phonograph disk care product
AU577289B2 (en) * 1983-06-01 1988-09-22 Hoechst Aktiengesellschaft Disk care product

Also Published As

Publication number Publication date
CH313410A (en) 1956-04-15
GB727456A (en) 1955-03-30
BE521395A (en)

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