GB1291465A - Magnetic system components having a protective film thereon - Google Patents

Magnetic system components having a protective film thereon

Info

Publication number
GB1291465A
GB1291465A GB53056/69A GB5305669A GB1291465A GB 1291465 A GB1291465 A GB 1291465A GB 53056/69 A GB53056/69 A GB 53056/69A GB 5305669 A GB5305669 A GB 5305669A GB 1291465 A GB1291465 A GB 1291465A
Authority
GB
United Kingdom
Prior art keywords
system components
hexadiene
component
protective film
magnetic system
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
GB53056/69A
Inventor
Archibald Nelson Wright
Clarence Jay Watters
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1291465A publication Critical patent/GB1291465A/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
    • 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
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • G11B5/7253—Fluorocarbon lubricant
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)

Abstract

1291465 Photopolymerization GENERAL ELECTRIC CO 29 Oct 1969 [1 Nov 1968 22 July 1969] 53056/69 Addition to 1119735 Heading C3P [Also in Divisions G5 and H1] . In the production of electromagnetic system components coated with an abrasion-resistant polymeric film, the film is produced by exposing the surface of the component to monomer vapour in ultraviolet light. Specified monomers are tetrafluorethylene, hexafluoropropylene, hexachlorobutadiene, 1,5 - hexadiene, 2,4 - hexadiene, and butadiene. In an embodiment (Fig. 1) the component 26 is placed on cooled holder 31 located in glass or metal vacuum chamber 12, which is provided with quartz window 13 underneath UV-light source 11. Monomer vapour is admitted through 36. In examples, polymer films less than 1500 Š thick are formed at a pressure of 2 Torr. on magnetic recording heads and magnetic tapes.
GB53056/69A 1968-11-01 1969-10-29 Magnetic system components having a protective film thereon Expired GB1291465A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77272968A 1968-11-01 1968-11-01
US84384069A 1969-07-22 1969-07-22

Publications (1)

Publication Number Publication Date
GB1291465A true GB1291465A (en) 1972-10-04

Family

ID=27118645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53056/69A Expired GB1291465A (en) 1968-11-01 1969-10-29 Magnetic system components having a protective film thereon

Country Status (4)

Country Link
BE (1) BE741075A (en)
DE (1) DE1954593A1 (en)
FR (1) FR2022397A1 (en)
GB (1) GB1291465A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450499A1 (en) * 1979-02-28 1980-09-26 Siemens Ag PROCESS FOR PREPARING, ON A SUBSTRATE, POLYMERISATE DIELECTRIC LAYERS OBTAINED BY DISCHARGE DISCHARGE, AND USE OF SUCH LAYERS AS A SUBSTRATE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447072A1 (en) * 1979-01-17 1980-08-14 Cii Honeywell Bull BODY CONTAINING AT LEAST ONE TRANSDUCER FOR READING AND / OR RECORDING INFORMATION CONTAINED ON A MEDIUM
FR2461996A1 (en) * 1979-07-18 1981-02-06 Matsushita Electric Ind Co Ltd Magnetic recording medium of ferromagnetic thin film tape - with UV-cured epoxide! resin coating contg. lubricant to reduce wear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450499A1 (en) * 1979-02-28 1980-09-26 Siemens Ag PROCESS FOR PREPARING, ON A SUBSTRATE, POLYMERISATE DIELECTRIC LAYERS OBTAINED BY DISCHARGE DISCHARGE, AND USE OF SUCH LAYERS AS A SUBSTRATE

Also Published As

Publication number Publication date
FR2022397A1 (en) 1970-07-31
BE741075A (en) 1970-04-01
DE1954593A1 (en) 1970-07-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees