Curing of organoalkoxysilane compound

Abstract

Abstract PURPOSE: To obtain an organopolysiloxane, without degrading the storage stability, by incorporating a phosphite or an acid phosphate, which exhibits the catalyst function only in hot curing, into an organoalkoxysilane compound. CONSTITUTION: An organoalkoxysilane compound, e.g. dimethyldimethoxysilane, is incorporated with 1W10wt% of at least one compound selected from (A) a phosphite, e.g. monomethyl phosphite, of formula I: (R is 1W4C alkyl and/or aromatic group; n is 1 or 2), and (B) an acid phosphate, e.g. monomethyl acid phosphate, of formula II, as a catalyst, preferably in a small amount of a solvent which dissolves or mixes with the silane, and cured at 50°C or above, preferably 100°C or above, in the presence of water. EFFECT: Scratch and yellowing resistance can be improved by application to molded articles. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Susumu Taniyama
• 👤 Goro Shimaoka
• 👤 Shoichi Inoue

Bibliographic Details