Tag Archives: spinel

Spinel ferrite thermal sensitive resistance component with negative temperature coefficient

Application Number  00128888 Application Date  2000.09.28 Publication Number  1326198 Publication Date  2001.12.12 Priority Information   2000/5/25 KR 28304/00   International Classification  H01C7/04   Applicant(s) Name  Ryool Teup Lyong Co., Ltd.   Address     Inventor(s) Name  Ri Jong-Guk;Yang Gwang-Sop;Wang Yongsong   Patent Agency Code  11105 Patent Agent  yang wu AbstractA negative temperature coefficient thermistor is… Read More »

Composition containing Mg-Al spinel and its preparing process

Application Number: 00120746Application Date: 2000.07.13Publication Number: 1334317Publication Date: 2002.02.06Priority Information: International: B01J23/00;C10G11/04Applicant(s) Name: Chinese Petro-Chemical Co., Ltd.Address: Inventor(s) Name: Jiang Wenbin;Zheng Manying;Chen PeiyanPatent Agency Code: 11034Patent Agent: wang fengdongAbstract A composition containing Mg-Al spinel contains magnesium oxide (25-30 wt.%), alumina (60-70 wt.%) and the oxide of rare-earth metal except Ce (5-15 wt.%). Its Mg and… Read More »

Chromium-aluminium spinel refractory material

Application Number: 00123211Application Date: 2000.11.03Publication Number: 1351978Publication Date: 2002.06.05Priority Information: International: C04B35/66Applicant(s) Name: Zhao WenhouAddress: Inventor(s) Name: Zhao WenhouPatent Agency Code: 21118Patent Agent: chen mengAbstract A refractory chromium-aluminium material is produced by using corundum 20-98 wt.%, chromite 2-80 % and adhesive 0.5-14 % of fore two components. The present ivnention is superiod in that adding… Read More »