NOVEL ORGANOSILICON COMPOUND, ORGANOSILICON RESIN HAVING DIOL, AND PROCESSES FOR PRODUCING THESE

摘要

[PROBLEMS] To provide a novel alkoxysilane having a diol protected, an organosilicon resin which has a diol and the composition of which can be easily regulated, and processes for producing these. [MEANS FOR SOLVING PROBLEMS] The alkoxysilane is an organosilicon compound represented by the following formula (1). The organosilicon resin having a diol is one obtained by hydrolyzing/condensing this compound with a polyfunctional alkoxysilane. [Chemical formula 1] (1) (In the formula, R1 to R3 each is C1-6 alkyl or alkoxy; R4 is C2-6 alkylene; and Z is C1-3 alkylene.) The alkoxysilane is produced by subjecting a compound represented by the following formula (4) and a silane compound represented by R1R2R3SiH to a hydrosilylation reaction. [Chemical formula 4] (4) (In the formula, Z is C1-3 alkylene and R5 has a C-C double bond at an end.) The organosilicon resin is produced by the hydrolysis/condensation of a mixture comprising the organosilicon compound represented by the formula (1) and a molecular weight modifier.