Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-05-22
2007-05-22
Niland, Patrick (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C106S400000, C106S401000, C106S425000, C106S426000, C106S431000, C106S438000, C106S450000, C106S454000, C106S458000, C106S457000, C106S478000, C106S480000, C106S481000, C428S411100, C523S200000, C523S205000, C523S216000, C524S408000, C524S413000, C524S430000, C524S431000, C524S432000, C524S492000, C524S493000, C524S497000
Reexamination Certificate
active
10360256
ABSTRACT:
A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functional groups reactive with the crosslinking agent; and (iii) 5 to 85 percent by volume of particles having a mean particle size less than 100 nm. The particles comprise 1 to 99 percent by weight of at least one metal oxide wherein the metal is selected from zinc, titanium, cerium, manganese, bismuth, copper, zirconium and iron.A multi-component composite coating composition is also provided, comprising a pigmented basecoat and a clear coat. The basecoat and/or clearcoat may be derived from the curable film-forming composition described above.Also provided are coated substrates in which the curable coating compositions or the multi-component composite coating compositions described above are applied to a substrate and cured to form a cured coating.Further provided is a pigment comprising particles having a mean particle size less than 100 nm and comprising 1 to 99 percent by weight metal oxide wherein the metal is selected from zinc, titanium, cerium, manganese, bismuth, copper, zirconium and iron and 1 to 99 percent by weight silica. These particles may be used in the curable film-forming compositions described above.
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Munro Calum H.
Vanier Noel R.
Niland Patrick
PPG Industries Ohio Inc.
Uhl William J.
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