Process for the preparation of powder coating compositions
OwnerUwe Wilkenhoener, Martin Wulfinventors
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Abstract
The invention relates to a process of preparation of a powder coating composition providing a desired gloss level of the resulted coatings comprising the following steps of: a) providing particles of a powder coating composition having a number average particle size in the range of 1 to 300 μm, b) irradiating the particles with high energy radiation under near-ambient temperature, and c) discharging the irradiated particles of the powder coating composition; the process according to the invention provides powder coating compositions producing a desired gloss level of the coatings by varying the time period and the intensity of the UV-irradiation of the powder coating particles in step b).
Claims9
A process of preparation of a powder coating composition providing a desired gloss level of the resulted coating comprising the following steps of
- a) providing particles of a powder coating composition having a number average particle size in the range of 1 to 300 μm,
- b) irradiating the particles with high energy radiation under near-ambient temperature, and
- c) discharging the irradiated particles of the powder coating composition.
Dependencies are inferred from the claim text.