Novel bis (alkoxysilyl-vinylene) group-containing silicon compound and production method of same

Abstract

Provided is an organic silicon compound represented by the following general formula (1) (wherein R 1 represents either an alkyl group that has 1 to 20 carbon atoms and may have a substituted group or a cycloallcyl group that has 3 to 20 carbon atoms and may have a substituted group; R 2 represents either a hydrogen atom or a monovalent hydrocarbon group that has 1 to 20 carbon atoms and may have a substituted group, and R 2 may be either identical or different; and each a independently represents an integer of 1 to 3). The novel silicon-containing compound of the present invention provides a cured product of a room temperature-curable organopolysiloxane composition that is particularly superior in fast curability.

1 . An organic silicon compound (A) represented by the following general formula (1) 
       
         
           
           
               
               
           
         
         (wherein R 1  represents either an alkyl group that has 1 to 20 carbon atoms and may have a substituted group or a cycloalkyl group that has 3 to 20 carbon atoms and may have a substituted group; R 2  represents either a hydrogen atom or a monovalent hydrocarbon group that has 1 to 20 carbon atoms and may have a substituted group, and R 2  may be either identical or different; and each a independently represents an integer of 1 to 3). 
       
     
     
         2 . A production method of the organic silicon compound as set forth in  claim 1 , comprising adding two hydrogenalkoxysilanes (3) to one silane compound (2) having two ethynyl groups on an identical silicon atom, through a hydrosilylation addition reaction 
       
         
           
           
               
               
           
         
         (wherein R 1  represents either an alkyl group that has 1 to 20 carbon atoms and may have a substituted group or a cycloalkyl group that has 3 to 20 carbon atoms and may have a substituted group; R 2  represents either a hydrogen atom or a monovalent hydrocarbon group that has 1 to 20 carbon atoms and may have a substituted group, and R 2  may be either identical or different; and each a independently represents an integer of 1 to 3).