Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1992-02-04
1993-12-14
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106400, 106401, 106410, 106431, 106434, 106435, 106438, 106446, 106450, 106453, 106454, 106457, 106459, 106475, 106481, 106485, 106493, 106495, 106497, C09C 306
Patent
active
052698408
ABSTRACT:
Colorant clusters comprising an aggregation of a plurality of grains of sol-derived material and colorant. The clusters are particularly useful as pigments in liquid compositions, e.g., paints and inks, for forming coatings that are retroreflective immediately upon drying. Also, a process for preparing such colorant clusters comprising admixing colorant in a binder sol to yield a pigment sol and then removing liquid medium from the pigment sol to yield the clusters. Also, a coating composition comprising retroreflective elements, a vehicle, and the aforementioned colorant clusters. After application of the composition to a substrate, the resultant coating is immediately retroreflective upon drying.
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Nalco Chemical Company--Product Bulletin K-1115, 1989.
Ralph K. Iler, The Chemistry of Silica, Solubility, Polymerization, Colloid and Surface Properties, and Biochemistry, John Wylie & Sons, New York, 1979, pp. 415-419.
S. Lowell and Joan E. Shields, Powder Surface Area and Porosity, 2nd ed., Chapman and Hall, New York, 1984, pp. 3-35 and 158-182.
Bacon, Jr. Chester A.
Bingham Wallace K.
Morris Geoffrey P.
Bell Mark L.
Griswold Gary L.
Hertzog Scott L.
Jordan Robert H.
Kirn Walter N.
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