Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1980-03-11
1981-12-15
Michl, Paul R.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106288Q, 106296, 106297, 106300, 106301, 106304, 106308F, 260403, C08K 904
Patent
active
043058531
ABSTRACT:
A process of chemically modifying metal oxides, that is oxides of metals such as iron, lead, molybdenum, titanium, zinc and other metals, by treating them under heating at a temperature between 100.degree. and 160.degree. C. for a time period between 10 minutes and one hour or more with a lecithin material, in fluid form (including molten form). The lecithin material is a vegetable lecithin, an animal lecithin or the acetone-soluble fraction of either type of lecithin. Such metal oxide groupings enter the lecithin-fluid fraction. Whereafter a modified metal oxide, partially in a suspended form, is developed partially dissolved in the fluid lecithin (where such product can be utilized as a modified form of the fluid lecithin fraction). Such solid modified metal oxide thereafter can be sedimented from the modified oily fraction. Such modified metal oxides, instead of their initial form, can be used in such form. Or, the modified metal oxides can be placed into a water dispersion, whereafter the dissolved matter can in solution further interreact with reactive components dissolved in the same water, or can interreact with an additional reactive organic component (such as an unsaturated polymeric matter, in particular a latex), whereby such metal oxide matter with the lecithin-groupings enters into the water dispersion. The lecithin modified metal oxides can be used as paint pigments which are readily redispersible within the paint after storage (with or without addition of additional lecithin matter).
REFERENCES:
patent: 2997398 (1961-08-01), Kronstein et al.
patent: 3068111 (1962-12-01), Seymour
patent: 4056494 (1977-11-01), Kronstein et al.
patent: 4126591 (1978-11-01), Kronstein et al.
"Organic Coatings and Plastics Chemistry", vol. 41, Preprints of Papers presented by the Division of Organic Coatings and Plastics Chemistry at the American Chemical Society, 178th National Meeting, Washington, D.C., Sep. 9-14, 1979, Surface Modification of Metal Oxide Pigments by Combination with Lecithin Materials, pp. 514-517.
Eichberg Joseph
Kronstein Max
American Lecithin Company
Michl Paul R.
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