Patent ID: 6395113
Filing Date: 2002-05-28
Classification: B28B,C04B

Abstract:
In a process for the production of a nonflammable molded part in which vermiculite granulate is expanded at an elevated temperature and then mixed with a binding agent, following which a bulk load of a compressed cake is formed of the granulate that has been coated with adhesive and pressed into a nonflammable molded part, wherein a coating of adhesive solution of an inorganic binding agent is applied to the expanded vermiculite granulate, that the expanded vermiculite granulate that is furnished with the adhesive coating is then subjected to preliminary compression, continuously or discontinuously, and further custom cut and that these custom-cut parts undergo discontinuous compression at room temperature or higher, and pressures of at least 0.3 N/mm2, so that all solvent residues are removed from the finished, nonflammable molded part;wherein the improvement comprises the selection of said solution of inorganic binding agent with the proviso that said inorganic binding agent of said solution consists of an inorganic compound based on acids that contain phosphorus and/or their salts and said solution of inorganic binding agent includes a hydrophobizing agent based on an organo-silicon compound.