Light weight silica balls with a dense outer layer and method of

Details Light weight silica balls with a dense outer layer and method of Light weight silica balls with a dense outer layer and method of

1996-01-17

1997-07-22

Langel, Wayne

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C01B 3312

Patent

active

056501293

ABSTRACT:
The present invention provides silica balls in a spherical shape, the silica balls having a porous internal structure and a dense outside layer.

REFERENCES:
patent: 2161186 (1939-06-01), Morgan et al.
patent: 2699376 (1955-01-01), Hay
patent: 3493341 (1970-02-01), Le Page et al.
patent: 4857290 (1989-08-01), Shimizu
patent: 4913966 (1990-04-01), Garvey et al.
patent: 5063179 (1991-11-01), Menashi et al.
patent: 5354548 (1994-10-01), Araya et al.

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