Preparation of thin layers based on an oxide of feriii to the optical recording and / or magnetic

摘要

P the present invention relates to a process for the preparation of thin layers based on iron oxide, * * i * * i * * i / p & & p & it consists in applying on a support a polymer composition of iron oxide prepared by hydrolysis of a solution of iron alkoxide. The hydrolysis using a quantity of water such that the molar ratio r water / alkoxide is between 3 and 15, or between 60 and 80. / p & & p & the invention applies to the preparation of thin layers for the optical recording and / or magnetic. / p