US Patent 7655587 High resistivity refractory with a high zirconia content
Patent 7655587 was granted and assigned to Saint-Gobain on February, 2010 by the United States Patent and Trademark Office.
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Patent abstract
The invention provides a novel fused and cast refractory product with a high zirconia content having improved electrical resistivity. Said refractory product comprises, as a percentage by weight relative to the oxides and for a total of more than 98.5%:ZrO2+Hf2O: >85%SiO2: 1% to 12%Al2O3: 0.1% to 2.4%, with Al2O3/SiO2<0.5Y2O3: ≦1%,B2O3: <1.5%; anda dopant selected from the group formed by V2O5, CrO3, Nb2O5, MoO3, Ta2O5, WO3, and mixtures thereof, in a weighted quantity such that:0.2%≦2.43V2O5+8.84CrO3+1.66Nb2O5+6.14MoO3+Ta2O5+3.81WO3.
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US Patent 07655587 High resistivity refractory with a high zirconia content US Patent 7655587 High resistivity refractory with a high zirconia content
Infobox
Patent Number
0765558700
Patent Number
765558700
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076555870
Date of Patent
February 2, 2010
0Patent Application Number
118925690
Date Filed
August 24, 2007
0Official Website
Patent Primary Examiner
Edits on 28 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076555870
Date of Patent
February 2, 2010
0Patent Application Number
118925690
Date Filed
August 24, 2007
0Official Website
Patent Primary Examiner
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US Patent 07655587 High resistivity refractory with a high zirconia content
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07655587
Date of patent
February 2, 2010
Patent application number
11892569
Date Filed
August 24, 2007
Patent primary examiner
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