Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1990-07-19
1992-12-15
Lusignan, Michael
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
106442, 106446, B32B 516
Patent
active
051716313
ABSTRACT:
A coating composition and method of coating for producing a coating containing at least 21-22% by volume titanium dioxide pigment for developing hiding on a suitable substrate, the coating composition having a pigment volume concentration (PVC) of up to a critical pigment volume concentration (CPVC), preferably a PVC of from about 25% to about 50-60% and more preferably from about 25% to about 45%, and a pigment system including an optional filler and a prime pigment comprising about 70-98% by volume titanium dioxide (TiO.sub.2), preferably a rutile form having a median particle size of about 0.2 microns, and about 2-30% by volume of an aluminum trihydrate (ATH) spacer/extender pigment having a similar median particle size and particle size distribution, preferably substantially the same as for the TiO.sub.2 pigment.
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"Crowding and Spacing of Titanium Dioxide Pigments", Journal of Coatings Technology, vol. 60, No. 758, Mar. 1988, pp. 67-70 by Juergen Braun.
Stieg, F. B., "What Does the Coatings Industry Need for Titanium Dioxide Replacement", presented at the Global Outlook for TiO.sub.2 & TiO.sub.2 Replacements/Extenders in Coatings, Paper & Plastics, St. Louis, Mo., Mar. 1990.
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Craft, R. W., "Light Scattering by Titanium Dioxide Pigment", Modern Paint and Coatings, Oct. 1989.
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Ross, W. D., "Light Scattering by Titanium Dioxide Pigment", Western Coatings Symposium, Anaheim, Calif., Feb. 1989.
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Williams, J. E., Jr., "Hydrated Alumina Extenders", Paint and Varnish Production, Jun. 1967.
Ritter, H. W., et al., "Influence of Fine Particle Extenders on Hiding Pigment Performance in Latex Paints", Journal of Paint Technology, vol. 38, No. 500, Sep. 1966.
Aluminum Company of America
Bucher John A.
Dudash Diana L.
Lusignan Michael
Sullivan Jr. Daniel A.
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