Silicate glass and dental product

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United States of America Patent

PATENT NO 11472729
APP PUB NO 20210179481A1
SERIAL NO

16761635

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a silicate glass that can reduce a color change in base material zirconia even when simultaneously fired with an unsintered zirconia. The present invention also provides a dental product using same. The present invention relates to a silicate glass comprising: 65.0 to 90.0 mol % SiO2, 4.0 to 15.0 mol % Al2O3, 1.0 to 10.0 mol % K2O, 0.1 to 7.0 mol % Na2O, and 0.01 to 15.0 mol % CaO, the silicate glass being essentially free of B2O3, and satisfying the relation {(number of moles of Al2O3)/(total number of moles of RO+R2O)}≥0.70, wherein R in the metal oxide represented by RO represents a metallic element in group 2 or 12 of the periodic table, and R in the metal oxide represented by R2O represents a metallic element in group 1 of the periodic table. The present invention also relates to a composite comprising the silicate glass and a base material formed of a ceramic; a sintered body as a fired product of the composite; and a dental product comprising the sintered body.

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Patent Owner(s)

Patent OwnerAddress
KURARAY NORITAKE DENTAL INC1621 SAKAZU KURASHIKI-SHI OKAYAMA 7100801 ?7100801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ban, Kiyoko Aichi, JP 5 40
Sakakibara, Toshio Aichi, JP 30 1034
Yamada, Kazuhiro Aichi, JP 474 4920

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