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1. AU1988020715 - Powder coatings

Office
Australia
Application Number 20715/88
Application Date 07.07.1988
Publication Number 1988020715
Publication Date 16.01.1992
Publication Kind A
IPC
C09D 5/46
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
46for flame-spraying; for electrostatic or whirl-sintering coating
B05D 1/06
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
02performed by spraying
04involving the use of an electrostatic field
06Applying particulate materials
C09C 1/40
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; PREPARATION OF CARBON BLACK
1Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
40Compounds of aluminium
Applicants ICI Australia Operations Proprietary Limited
Inventors Coates, Roger Hampton
Agents ICI Australia Operations Pty Ltd
Priority Data PI3275 22.07.1987 AU
Title
(EN) Powder coatings
Abstract
(EN) Powder coatings may be given tribo-charging characteristics by the addition thereto of an additive which comprises aluminium oxide and/or hydroxide which has been sheared such that the additive resulting therefrom is a fine, essentially aggregate-free powder which comprises at least 5 % by weight of particles of maximum particle size 0.2 micrometres. A preferred way of achieving the particle size requirement is to add to the aluminium oxide/hydroxide prior to shearing a proportion of a fine particle extender of maximum particle size 0.2 um. The preferred extender is fumed silica. The additive is simply added to any powder coating composition in a quantity sufficient to confer on it the desired degree of tribo-charging characteristics.
Related patent documents
NO19891079This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.