METHOD FOR HYDROLYZING CHLOROSILANE POLYMERS

• Main Authors: AKAZAKI, Kozue, TANAKA, Yasutomo, ISHIZAKI, Masato, OOTSUKA, Yuuta, KUBOTA, Wataru
• Format: Patent
• Language: English; French; German
• Published: 20.04.2022
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOUNDS THEREOF; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

This disclosure is to make it possible to easily stabilize a chlorosilane polymer while preventing a solid chlorosilane polymer from being generated. Disclosed is a method for stabilizing a chlorosilane polymer generated secondarily in a step of a chemical vapor deposition method using chlorosilane-based gas, the method including: a step (S11) of bringing alcohol into contact with the chlorosilane polymer, degrading the chlorosilane polymer to alkoxide, hydrogen chloride and hydrogen, and diluting the degraded alkoxide with the alcohol; and a step (S12) of performing hydrolysis for the alkoxide.