Ceramic color composition and ceramic color paste
AssigneeAsahi Glass Company, Limited
InventorsShuji Taguchi, Shiro Ootaki, Toru Kudo
Life of this patent
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Abstract
A ceramic color composition comprising, as represented by mass percentage, from 60 to 85% of a low melting point glass powder, from 15 to 40% of a heat-resistant pigment powder, from 0 to 15% of heat-resistant whiskers, and from 0 to 15% of a refractory powder, wherein Fe3O4: 1 to 35%, MnO2: 1 to 24%, Cr2O3+CuO≧1%, and Cr2O3/8.5+CuO/23+NiO/3.3+CoO/0.71+V2O/56+Se/0.45≦1%.
Claims4
A ceramic color composition consisting essentially of, as represented by mass percentage, from 60 to 85% of a low melting point glass powder, from 15 to 40% of a heat-resistant pigment powder, from 0 to 15% of heat-resistant whiskers, and from 0 to 15% of a refractory powder, characterized in that as represented by mass percentage, the Fe content CFe based on Fe3O4 is from 1 to 35%, and the Mn content CMn based on MnO2 is from 1 to 24%, that at least one of the Cr content CCr based on Cr2O3 and the Cu content CCu based on CuO is not 0%, and CCr+CCu is at least 1%, that each of the Ni content CNi based on NiO, the Co content CCo based on CoO, the V content CV based on V2O5 and the Se content CSe, is 0% or larger than 0%, and that CCr, CCu, CNi, CCo, CV and CSe satisfy the following formula 1:
- CCr/8.5+CCu/23+CNi/3.3+CCo/0.71+CV/56+CSe/0.45≦1% Formula 1
Dependencies are inferred from the claim text.