GB625374A - Improvements in or relating to methods of applying a coating to a substratum having an irregular surface - Google Patents

Improvements in or relating to methods of applying a coating to a substratum having an irregular surface

Info

Publication number
GB625374A
GB625374A GB19973/47A GB1997347A GB625374A GB 625374 A GB625374 A GB 625374A GB 19973/47 A GB19973/47 A GB 19973/47A GB 1997347 A GB1997347 A GB 1997347A GB 625374 A GB625374 A GB 625374A
Authority
GB
United Kingdom
Prior art keywords
bubble
substratum
coating
irregular surface
heating
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
GB19973/47A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB625374A publication Critical patent/GB625374A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A substratum having an irregular surface is coated by a method according to which a supply of material suitable for the purpose is blown out to form a thin bubble which is pressed against and attached to the substratum. Examples of suitable materials are glass, nitrocellulose and acetyl cellulose, while a plasticiser such as castor oil may also be present. The bubble may be formed from a material rendered viscous by heat treatment or by blowing a viscous solution of the material, specified solvents being ethyl and butyl acetates. The bubble may be adhered to the substratum by means of a binder previously applied, or by means of Van der Vaals forces only, e.g. by heating the substratum while pressure is being applied to the bubble. A subsequent layer may be applied to the coating and afterwards the bubble coating removed, e.g. by heating. A plurality of bubble layers may be applied.
GB19973/47A 1946-07-27 1947-07-24 Improvements in or relating to methods of applying a coating to a substratum having an irregular surface Expired GB625374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL625374X 1946-07-27

Publications (1)

Publication Number Publication Date
GB625374A true GB625374A (en) 1949-06-27

Family

ID=19788544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19973/47A Expired GB625374A (en) 1946-07-27 1947-07-24 Improvements in or relating to methods of applying a coating to a substratum having an irregular surface

Country Status (1)

Country Link
GB (1) GB625374A (en)

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