Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2005-02-08
2005-02-08
Seidleck, James J. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S081000, C522S077000, C522S071000, C522S096000, C522S090000, C522S083000, C522S104000, C522S107000, C522S100000, C522S168000, C522S170000, C522S113000, C522S120000, C522S114000, C522S121000, C427S508000, C427S487000, C428S323000, C428S325000, C428S331000, C428S409000, C524S430000, C524S437000, C524S438000, C524S492000, C524S493000, C524S914000
Reexamination Certificate
active
06852768
ABSTRACT:
The invention provides curable organic coatings with improved scratch resistance. More particularly, the present invention relates to a combination of inorganic filler having a 50thpercentile particle diameter of from about 3 to about 9 micrometers comprised of aluminum oxide, silicon dioxide, ceramic spheres or mixtures thereof, and particles having a 50thpercentile particle diameter of from about 10 to about 150 micrometers. The liquid coatings have a viscosity before curing of from about 100 cps (mPa-s) to about 70,000 cps (mPa-s) at a shear rate of 0.15 s−1. The use of inorganic filler materials of the defined type and particle size are combined with the curable organic coating to improve the scratch resistance of the coating without a negative impact on the physical and performance properties or application parameters of the original coating material. The present invention also provides organic coatings comprising texture-producing particles which provide the coating with texture after the coating has been cured.
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Benca Kimberly R.
Ferrell Victor E.
Jin Pei Wen
Kurpiewski Thomas
Quarmby Ian C.
Dearth Miles B.
Lord Corporation
McClendon Sanza L.
Seidleck James J.
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