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.
