Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1988-11-09
1993-08-24
Group, Karl
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
106312, 106483, 106486, 4273762, C03C 104
Patent
active
052388816
ABSTRACT:
A colored ceramic glaze is prepared from a raw glaze containing glass frit, clay and one or more ceramic pigments added as an aqueous dispersion. The raw glaze is ball-milled after which it is blended with the aqueous dispersion. The dispersion contains up to 70% of a ceramic pigment, such as zirconium-vanadium yellow, preferably with 1% to 3% of a suspending agent, up to about 1.5% of a thickener, an effective amount, but no more than 1% of a dispersant, and a biocide as needed. The suspending agent preferably is attapulgite clay or a water-swellable smectite clay. The thickener is preferably a xanthan gum and the dispersant is typically an ammonium salt of a medium molecular weight polymethacrylic acid. A stronger, more intense color is achieved by adding the ceramic pigment as a dispersion as opposed to ball-milling it with the glass frit as has been the traditional approach.
REFERENCES:
patent: 2057958 (1936-10-01), Jesson
patent: 2686131 (1952-08-01), Combs
patent: 3443973 (1969-05-01), Bugosh et al.
patent: 3453131 (1969-07-01), Fadner
patent: 3458325 (1969-07-01), Zola
patent: 3725089 (1973-04-01), Zola
patent: 3834924 (1974-09-01), Grillo
patent: 3868334 (1975-02-01), Van Loan
patent: 3871890 (1975-03-01), Eppler
patent: 4267065 (1981-05-01), Johnson, Jr. et al.
patent: 4273822 (1981-06-01), Bube
patent: 4331768 (1982-05-01), Boyd et al.
patent: 4618374 (1986-10-01), Thompson, III et al.
patent: 4619705 (1986-10-01), Dixon et al.
Odom, "Smectite Clay Minerals: Properties and Uses", Philosophical Transactions of the Royal Society of London, vol. 311, pp. 219-432, No. 1517 (1984).
Millot, "Clay", Scientific American 240(4) 108 (Apr. 1979).
Applied Clay Minerology, Ralph E. Grim, McGraw-Hill Book Co., Inc. New York, 1962, p. 377.
Engelhard Corporation
Group Karl
LandOfFree
Stable color dispersions, their preparation and use in ceramic g does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stable color dispersions, their preparation and use in ceramic g, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stable color dispersions, their preparation and use in ceramic g will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-828949