Alumina fiber structure and process for its production

Details Alumina fiber structure and process for its production Alumina fiber structure and process for its production

1988-06-08

1990-06-05

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

28107, 28112, 264 56, 264 66, 264103, 264130, 264258, D01F 908, D04H 146

Patent

active

049312391

ABSTRACT:
Alumina fiber structures prepared by (i) preparing precursor fibers by spinning a viscous spinning solution containing compounds of metals including aluminum and an organic polymer compound in which the proportion of alumina in the total metals in the solution is at least 65% by weight of alumina when all metals are calculated as their oxides; (ii) laying the precursor fibers into a mat; (iii) applying a lubricant which is a solution of higher fatty acid ester in a hydrocarbon solvent to the fibers either before or after forming the mat; (iv) needling the lubricated mat; and (v) burning the obtained structure to convert the precursor fibers to alumina fibers, possess high tensile strengths and high peel strengths.

REFERENCES:
patent: 3719546 (1973-03-01), Parlin
patent: 3971669 (1976-07-01), Wrzesien et al.
patent: 3975565 (1976-08-01), Kendall
Sweet, Larrie H., "Improved Ceramic Fiber Blankets Solve Difficult Application Problems", Industrial Heating, 4/77, pp. 16-19.

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