초록 ▼

A process is proposed for producing non-combustible moulded articles from blown vermiculite, the blown vermiculite granules being mixed with an inorganic binder and then pressed. The blown vermiculite granules are mixed with a solution of an inorganic binder, the vermiculite granules once mixed are

A process is proposed for producing non-combustible moulded articles from blown vermiculite, the blown vermiculite granules being mixed with an inorganic binder and then pressed. The blown vermiculite granules are mixed with a solution of an inorganic binder, the vermiculite granules once mixed are pre-pressed, cut to the shape required and the cut blanks are pressed non-continuously at at least room temperature and preferably at temperatures of at least 100.degree. C. and pressures of at least 0.3 N/mm2 to ensure that all solvent residues are removed from the finished non-combustible moulded article.

대표청구항 ▼

1. 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

1. 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.