C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 33/13 (2006.01) C04B 33/04 (2006.01) C04B 33/08 (2006.01) C04B 35/632 (2006.01) C04B 35/634 (2006.01)
Patent
CA 2469090
The invention relates to boron-containing compositions for use in clay body, e.g. brick, manufacture. According to the invention clay bodies, such as bricks or tiles, are manufactured by a method comprising mixing into the starting clay a source of B2 O2 and a migration inhibitor capable of inhibiting the transport of borate towards the surface of the clay during its drying, forming the clay into the desired shape, drying of firing. Using the method according to the invention clay articles of improved properties may be obtained.
La présente invention se rapporte à des compositions contenant du bore, utilisables dans la fabrication de corps en argile, par exemple des briques. Conformément à l'invention, des corps en argile, tels que des briques ou des tuiles, sont fabriqués selon un procédé consistant à mélanger dans l'argile de départ une source de B¿2?O¿2? et un inhibiteur de migration pouvant empêcher le transport de borate vers la surface de l'argile pendant son séchage, à donner à l'argile la forme souhaitée, à sécher les corps formés puis à les chauffer. Le procédé de la présente invention permet d'obtenir des articles en argile présentant des propriétés améliorées.
Evans Michael
Stubbs Adrian John
Castle Colours Limited
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
U.s. Borax Inc.
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