Process for preparing refractory molded articles and binders the

Details Process for preparing refractory molded articles and binders the Process for preparing refractory molded articles and binders the

1996-07-16

1997-03-18

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3835, 264 63, 164 23, 164517, 164518, C04B 2404, C04B 2440

Patent

active

056118481

ABSTRACT:
This invention provides a process for preparing a refractory molded article comprising the steps of (a) forming a molded article matrix from an aggregate and the first binder, (b) impregnating the molded article matrix formed in step (a) with the second binder consisting of an alcoholic solution of one kind or two or more kinds of metal alkoxides selected from alkoxides of metals of Group 4A or Group 4B (excepting carbon) and Group 3A or Group 3B of the periodic table and their partial hydrolysates and an alkaline compound of alkali metal or alkaline earth metal (one kind or a mixture of two or more kinds selected from alkoxides, hydroxides and salts of the metal) and (c) drying and firing the molded article matrix at high temperature and also provides a binder for the preparation of such refractory molded article.

REFERENCES:
patent: 4712605 (1987-12-01), Sasaki et al.
patent: 4834165 (1989-05-01), Egoshi et al.
patent: 4919193 (1990-04-01), Sasaki
patent: 4921038 (1990-05-01), Sasaki et al.
patent: 5271768 (1993-12-01), Morishima et al.
patent: 5382383 (1995-01-01), Hirai et al.
patent: 5433941 (1995-07-01), Patel

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