Process for producing stained crystallized glass and its articles
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United States of America Patent
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Jun 27, 2000
Issued Date -
N/A
app pub date -
Sep 22, 1997
filing date -
Oct 23, 1996
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Abstract
A process for producing stained crystallized glass and its articles is provided where crystallized glass is obtained with patterns and colors like that of granites, marble, and other natural stones. The process includes the heat-treatment of a prepared batch of crystallizable glass granules, colored powder and water, at a temperature higher than the softening point of the glass granules resulting in fusion bonding of the glass granules. The colored powder is compounded by an inorganic pigment, a suspension stabilizing agent, an agglomerate, a deflocculant agent, and a crystallizable glass powder. The surface pattern is formed by the grain boundary region of the crystallizable glass granules, and part of the inorganic pigment in the colored powder moving with the crystallizable glass powder.
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