Method for producing silica-alumina fiber

Details Method for producing silica-alumina fiber Method for producing silica-alumina fiber

1994-08-18

1996-11-19

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

26421112, B29C 4788

Patent

active

055759645

ABSTRACT:
Silica-alumina fibers having good mechanical strength and heat resistance are produced by mixing a polyaluminoxane which comprises repeating units of the formula: ##STR1## in which X is an alkyl group, an alkoxy group or a hydroxy group, a silicon-containing compound in an amount of not larger than 40% by weight in terms of silica based on the weight of silica-alumina fibers to be produced, and an aliphatic carboxylic acid having 2 to 14 carbon atoms in an alkyl group in an amount of 0.03 to 0.4 mole per one gram atom of aluminum to obtain a spinning liquid, spinning the spinning liquid under a condition that a content of nonvolatile materials in the solution is maintained at least 97% by weight to form precursor fibers, and calcining the precursor fibers.

REFERENCES:
patent: 4101615 (1978-07-01), Horikiri et al.
patent: 4495121 (1985-01-01), Horikiri et al.
patent: 4961889 (1990-10-01), Kadokura et al.
patent: 5133918 (1992-07-01), Jung et al.

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