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DUPONT PATENTS LOW GLOSS,

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

DUPONT PATENTS LOW GLOSS,
FREE RADICAL POWDER COATINGS
Patent No. U.S. 6,852,765 B2
E. I. du Pont de Nemours and
Company has been granted a patent
for a powder coating composition
that produces a low gloss coating
upon cure. The composition is comprised
of a base polymer selected
from the group consisting of a
crosslinkable polyester, crosslinkable
polyurethane, crosslinkable acrylated
polyether and a combination thereof;
approximately five percent to 60% of
crosslinkable acrylic polymer having
a gloss transition temperature ranging
from approximately 40° C to 100°
C; and approximately 0.1 to 10% of
one or more free radical initiators, all
percentages in weight percent based
on total weight of the crosslinkable
base and acrylic polymer solids.

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