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1. WO2001057144 - POWDER MATERIAL FOR ELECTROSTATIC APPLICATION TO A SUBSTRATE AND ELECTROSTATIC APPLICATION OF THE POWDER MATERIAL TO A SUBSTRATE

Publication Number WO/2001/057144
Publication Date 09.08.2001
International Application No. PCT/GB2001/000425
International Filing Date 01.02.2001
Chapter 2 Demand Filed 31.08.2001
IPC
A61K 9/28 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, lozenges or tablets
28Dragees; Coated pills or tablets
C09D 5/03 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING 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
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
03Powdery paints
CPC
A61K 9/2893
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, tablets, ; discs, rods
28Dragees; Coated pills or tablets ; , e.g. with film or compression coating
2893Tablet coating processes
C09D 5/031
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING 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
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced
03Powdery paints
031characterised by particle size or shape
Applicants
  • PHOQUS LIMITED [GB]/[GB] (AllExceptUS)
  • MARTIN, Trevor, Ian [GB]/[CA] (UsOnly)
  • REEVES, Linda, Ann [GB]/[GB] (UsOnly)
Inventors
  • MARTIN, Trevor, Ian
  • REEVES, Linda, Ann
Agents
  • SENIOR, Janet
Priority Data
0002305.101.02.2000GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) POWDER MATERIAL FOR ELECTROSTATIC APPLICATION TO A SUBSTRATE AND ELECTROSTATIC APPLICATION OF THE POWDER MATERIAL TO A SUBSTRATE
(FR) MATERIAU EN POUDRE POUR APPLICATION ELECTROSTATIQUE A UN SUBSTRAT ET APLICATION ELECTROSTATIQUE DU MATERIAU EN POUDRE A UN SUBSTRAT
Abstract
(EN) This invention concerns a powder material suitable for electrostatic application to a substrate and a method of electrostatically applying said powder material to a substrate. At least some of the particles which constitute the powder material comprise a core and a shell surrounding the core. The shell and core generally have differing compositions and have different chemical and/or physical properties. Components which are likely to be altered can be placed in the core whilst maintaining the shell composition, thus allowing changes in formulation of the powder material without destroying the performance of the material in electrostatic application. The powder material is especially suitable for electrostatic application to pharmaceutical solid dosage forms.
(FR) L'invention concerne un matériau en poudre approprié à une application électrostatique sur un substrat et un procédé correspondant. Au moins certaines particules du matériau comprennent un coeur et une coque périphérique ayant généralement des compositions différentes et des propriétés chimiques et/ou physiques différentes. Les éléments susceptibles d'être modifiés peuvent être placés dans le coeur sans modification de la composition de la coque, ce qui permet de modifier la formulation du matériau en poudre sans perdre la performance en application électrostatique. Le matériau est particulièrement approprié à ce type d'application sur des formes posologiques pharmaceutiques solides.
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