Global Patent Index - EP 0916462 A3

EP 0916462 A3 2000-09-13 - Method and apparatus for preparing coloured materials in powder form for tile manufacture, and coloured materials obtained thereby

Title (en)

Method and apparatus for preparing coloured materials in powder form for tile manufacture, and coloured materials obtained thereby

Title (de)

Verfahren und Vorrichtung zum Vorbereiten von pulvrigen Farbstoffen zur Herstellung von Kacheln, und dadurch gewonnene Farbstoffe

Title (fr)

Méthode et dispositif pour la préparation de colorants sous forme de poudre utilisés dans la fabrication de carreaux, et les colorants ainsi produits

Publication

EP 0916462 A3 (EN)

Application

EP 98203671 A

Priority

IT RE970085 A

Abstract (en)

[origin: EP0916462A2] The method for preparing coloured materials in powder form for ceramic tile manufacture comprises feeding a mixing device (6) with a mass of atomized or granulated ceramic material the granules of which are of statistically equal size and do not contain added colorants, and a metered quantity of fine coloured particles of much smaller size than said granules, then mixing the entirety until the outer surface of said granules is completely covered by said fine coloured particles. <IMAGE>

IPC 1-7 (main, further and additional classification)

B28C 7/00

IPC 8 full level (invention and additional information)

B01F 15/04 (2006.01); B28C 7/00 (2006.01); B01F 3/18 (2006.01)

CPC (invention and additional information)

B01F 15/0408 (2013.01); B28C 7/0007 (2013.01); B01F 3/18 (2013.01)

Citation (search report)

  • [A] US 1792058 A 19310210 - ATKINSON RALPH L
  • [A] GB 2148277 A 19850530 - HMR GROUP LTD
  • [A] GB 619296 A 19490307 - JOHN MICHAEL LLOYD, et al
  • [A] PATENT ABSTRACTS OF JAPAN vol. 015, no. 377 (C - 0870) 24 September 1991 (1991-09-24)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 182 (C - 591) 27 April 1989 (1989-04-27)
  • [A] DATABASE WPI Week 8512, Derwent Publications Ltd., London, GB; AN 85-072405, XP002142863
  • [A] DATABASE WPI Week 8340, Derwent Publications Ltd., London, GB; AN 83-779455, XP002142864

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0916462 A2 19990519; EP 0916462 A3 20000913; EP 0916462 B1 20040121; AT 258106 T 20040215; DE 69821193 D1 20040226; DE 69821193 T2 20040609; ES 2212215 T3 20040716; IT 1297756 B1 19991220; IT RE970085 A1 19990511; IT RE970085 D0 19971111