Claims
- 1. A process for producing an alumina-based fiber, which comprises mixing an aluminum compound represented by the general formula AlR.sub.1 R.sub.2 R.sub.3 (wherein R.sub.1, R.sub.2 and R.sub.3 are each an organic group or a halogen) with water in a molar ratio of ([H.sub.2 O/[AlR.sub.1 R.sub.2 R.sub.3 ]) of 1.10 to 1.40 to produce a polyaluminoxane having a structural unit represented by the general formula: ##STR5## (wherein Y is at least one member selected from the group consisting of organic groups, halogens and hydroxyl groups), mixing the polyaluminoxane with at least one silcon-containing compound in an amount such that the desired alumina-based fiber has, after calcining, a silica content of up to 70%, spinning the resulting mixture of polyaluminoxane and silicon-containing compound under an atmosphere controlled at a temperature of about 28.degree. C. and a relative humidity of above 35% to obtain a precursor fiber, and then calcinating the precursor fiber to obtain an alumina-based fiber.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-51765 |
Mar 1987 |
JPX |
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Parent Case Info
This application is a continuation-in-part of application Ser. No. 07/158,393, filed Feb. 2, 1988, now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (10)
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JPX |
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Non-Patent Literature Citations (1)
Entry |
A. Storr, J. Am. Chem. Soc., 90 3173-3177 (1968). |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
158393 |
Feb 1988 |
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