发明名称 |
POLYCRYSTALLINE CORUNDUM FIBERS AND METHOD FOR THE PRODUCTION THEREOF |
摘要 |
The invention relates to polycrystalline corundum fibers substantially co nsisting of corundum and an oxide of the elements of the main groups I or II of the periodic table. The crystallites of said corundum fibers have the fo llowing grain size distribution: 0 to 0.15 micrometers (34 %), 0.15 to 0.29 micrometers (55 %) and 0.29 to 0.43 micrometers (11 %). Said corundum fibers are produced by mixing nuclei and an oxide former of the elements of the ma in groups I. and Il of the periodic table with an aluminium chlorohydrate, b y adding a water-soluble polymer, then by spinning fibers from said mixture and by calcining said fibers at temperatures above 1100°C. |
申请公布号 |
CA2664745(A1) |
申请公布日期 |
2008.04.03 |
申请号 |
CA20072664745 |
申请日期 |
2007.09.08 |
申请人 |
CLARIANT FINANCE (BVI) LIMITED |
发明人 |
ROESCH, NORBERT;CLAUSS, BERND |
分类号 |
C04B35/622;C01F7/30 |
主分类号 |
C04B35/622 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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