Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2007-10-30
2007-10-30
Niland, Patrick (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C427S372200, C427S385500, C428S411100, C524S211000, C524S212000, C524S215000, C524S445000, C524S492000, C524S493000, C524S494000, C524S495000, C524S496000, C524S401000, C524S501000, C524S502000, C524S556000, C524S601000, C524S599000, C524S612000
Reexamination Certificate
active
10351713
ABSTRACT:
The present invention refers to a mixing scheme containing a plurality of pigmented base paint compositions having defined colors and optionally one or more non-pigmented base paint compositions comprising at least one rheology controlled base paint composition containing at least one pigment selected from the group consisting of inorganic pigments, di-keto-pyrrolo-pyrrole type pigments, organic liquid crystal type pigments and carbon black and having the following rheology profile(1) an initial viscosity V1at 20° C. of 65 Pa s or greater when measured at a shear rate of 10−3s−1,(2) a viscosity V2at 20° C. when measured at a shear rate of 10−3s−1immediately after subjecting to a shear rate of at least 15 s−1whereby the viscosity V2is 700 Pa s or less and is less than or equal to 70% of V1;(3) 24 hours after subjected by shaking to a shear rate of at least 15s−1a viscosity V3at 20° C. of at least 140% of V2and be at least 55 Pa s,to a process of preparing a refinish coating composition using the mixing scheme of the present invention, to a refinish coating compositions obtainable therefrom, to a process of coating a substrate using the refinish coating composition and to a coated substrate obtainable therefrom.
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Fenn David Robert
Highcock William James
Kay Graham Stuart
Marmo Carol A.
Niland Patrick
PPG Industries Ohio Inc.
Uhl William J.
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