Inorganic pigments with improved gloss and good distribution in lacquer binders
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United States of America Patent
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-
Mar 9, 1982
Grant Date -
N/A
app pub date -
Jun 16, 1980
filing date -
Jun 20, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inorganic pigment exhibiting improved gloss and distribution in lacquer binders, carrying a coating comprising a SiOH-containing organosilicon compound and an alkanolamine. Advantageously the alkanolamine comprises at least one of triethanolamine, triisopropanolamine, diethanolamine, diisopropanolamine and 2-amino-2-methyl-propanol-1, the organosilicon compound is of the formula ##STR1## wherein n>3, R and R.sup.1 each independently is alkyl, cycloalkyl, aryl, alkenyl or a group of the formula ##STR2## wherein m>1, the organosilicon compound having an OH:Si ratio within the range of about 1:1 to 1:20, and the pigment comprises TiO.sub.2 or a titanate carrying an inorganic coating, the organosilicon compound plus alkanolamine ranging from about 0.3 to 1% by weight of the organosilicon compound to alkanolamine ranging from about 1:2 to 1:5.
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