SYNTHETIC CLAY FOR CERAMICS AND PROCESS FOR PREPARING THE SAME

Title:

SYNTHETIC CLAY FOR CERAMICS AND PROCESS FOR PREPARING THE SAME

Document Type and Number:

WIPO Patent Application WO/1997/006117

Kind Code:

A1

Abstract:

Clay constitutes the three major elements of pottery and porcelain together with silica stone and feldspar. In recent years, however, a good clay having a high plasticity and a low impurity level is being exhausted. The invention provides a synthetic clay rich in water retention and the amount of watery coating formed and possessing plasticity and properties equal or superior to natural clay and a process for preparing the same. The synthetic clay comprises 30 to 65 % by weight of amorphous silica, 30 to 65 % by weight of alumina trihydrate, and 2 to 20 % by weight of at least one of sepiolite, palygorskite, and bentonite. It may be in the form of a slurry, a hydrous clay prepared by dehydrating a slurried synthetic clay, or a mass or dry powder prepared by dehydrating a slurried synthetic clay and drying the dehydrated clay.

Inventors:

OHSHIMA IEMITSU (JP)
KIKUHATA AKIRA (JP)

Application Number:

PCT/JP1996/002043

Publication Date:

February 20, 1997

Filing Date:

July 22, 1996

Export Citation:

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Assignee:

COSMO CLAY & CERAMICS CO LTD (JP)
OHSHIMA IEMITSU (JP)
KIKUHATA AKIRA (JP)

International Classes:

C04B33/04; C04B33/24; (IPC1-7): C04B33/00; C04B35/00

Foreign References:

JPS5012446B1	1975-05-12
JPS61236649A	1986-10-21
JPH02212358A	1990-08-23

Other References: