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Patents

KANSAI PAINT PATENTS

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

KANSAI PAINT PATENTS
REPAIR COATING METHOD
Patent No. U.S. 6,821,569 B2
Kansai Paint Co. has been granted a
patent for a repair coating method. It is
comprised of coating a photocurable processing
composition onto a damaged
area of a substrate to form an uncured
processed layer; irradiating light onto
the uncured layer to form a photocured
processed layer; coating a normal temperature
or heat-curable colored base
coating containing a resin having an
active hydrogen group to form an
uncured colored base layer; coating
a photocurable clear composition
containing a resin containing a photopolymerizable
unsaturated group
and an active hydrogen group, a
photopolymerization initiator and
polyisocyanate compound to form an
uncured clear layer; and irradiating
light to cure both uncured colored
base layer and uncured clear layer
simultaneously. C

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