Temperature stabilized, pyrogenically produced aluminum oxide-mi

Details Temperature stabilized, pyrogenically produced aluminum oxide-mi Temperature stabilized, pyrogenically produced aluminum oxide-mi

1980-07-31

1981-09-01

Vertiz, O. R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 65, C04B 3510

Patent

active

042869900

ABSTRACT:
There is provided temperature stabilized pyrogenically produced aluminum oxide-mixed oxide having a BET surface area of 50 to 200 m.sup.2 /g which contains 0.5 to 20 weight % silicon dioxide as a constituent thereof. Because of the silicon dioxide constituent the aluminum oxide does not change into the .alpha.-Al.sub.2 O.sub.3 phase until 1350.degree. C. The temperature stabilized aluminum oxide-mixed oxide is suitable for the production of thermal insulation compositions.

REFERENCES:
patent: 3784388 (1974-01-01), King et al.
patent: 3865599 (1975-02-01), Mansmann et al.
patent: 3989783 (1976-11-01), McGee
patent: 4028453 (1977-06-01), Miller et al.
patent: 4040998 (1977-08-01), Nemeth
patent: 4094690 (1978-06-01), Morton

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