Production of block copolymer

Abstract

Abstract PURPOSE: To obtain a silicone resin having flexibility and excellent heat resistance and adhesion to inorganic materials, by reacting methylpolysiloxane with a specific silicon compound in the presence of an amine and an organic solvent. CONSTITUTION: Methylpolysiloxane represented by formulaIis reacted with a silicon compound represented by formula II, wherein R and R' are alkyl or aryl, X is chlorine, amino or alkoxy, m is 0W100 and 1 is 2W10, in the presence of an amine and an organic solvent. Examples of said amine which can be preferably used include pyridine and triethylamine. Examples of the organic solvent include benzene, chloroform, diethyl ether and acetone. As the compounds represented by formula °C, those having the formula in which 1 is 2W5 and m is about 0W20 are preferred. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Taro Suminoe
• 👤 Yoshio Matsumura
• 👤 Ikuo Nozue
• 👤 Nagahiko Tomomitsu

Bibliographic Details