Process of reacting a halogen-silane mixture with an alcohol mixture containing tertiary alcohol

Abstract

Abstract Silicone resin having a ratio of R : Si-groups of 0.95 to 1.5, the remaining Si-valences being satisfied by oxygen and alkoxy groups, the maximum amount of alkoxy groups being up to 0.75 mole of alkoxy per 100 g. R stands for methyl and/or (phenyl. 20 mole percent of the methyl and/or phenyl groups may be replaced by vinyl. The silicone resin is produced by reacting a halogen silane mixture of an R : Si-ratio of 0.95 to 1.5 with a mixture consisting of A. TERTIARY, CHAIN-LIKE ALIPHATIC ALCOHOLS OF 4 TO 8 CARBON ATOMS, AND B. PRIMARY AND/OR SECONDARY CHAIN-LIKE ALIPHATIC ALCOHOLS OF 1 TO 8, PREFERABLY 1 TO 4 CARBON ATOMS. 0.4 TO 0.6 MOLE OF TERTIARY ALCOHOL ARE USED PER MOLE OF SILICON-ATTACHED HALOGEN ATOM WHILE 0.15 TO 1 MOLE OF PRIMARY AND/OR SECONDARY ALCOHOL ARE USED PER MOLE OF TERTIARY ALCOHOL. The reaction is effected at temperatures of between about 10* to 90* C. The reaction product may be subsequently further condensed.

Inventors

• 👤 G Rossmy
• 👤 G Koerner
• 👤 V Kropac

Bibliographic Details