[EN] PROCESS FOR PREPARING PLATINUM ORGANOSILOXANE COMPLEXES USING AN ENONE ADDITIVE [FR] PROCÉDÉ DE PRÉPARATION DE COMPLEXES DE PLATINE-ORGANOSILOXANE À L'AIDE D'UN ADDITIF D'ÉNONE
[EN] PROCESS FOR PREPARING PLATINUM ORGANOSILOXANE COMPLEXES USING AN ENONE ADDITIVE [FR] PROCÉDÉ DE PRÉPARATION DE COMPLEXES DE PLATINE-ORGANOSILOXANE À L'AIDE D'UN ADDITIF D'ÉNONE
[EN] PROCESS FOR PREPARING PLATINUM ORGANOSILOXANE COMPLEXES USING AN ENONE ADDITIVE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPLEXES DE PLATINE-ORGANOSILOXANE À L'AIDE D'UN ADDITIF D'ÉNONE
申请人:DOW SILICONES CORP
公开号:WO2019018461A1
公开(公告)日:2019-01-24
A platinum organosiloxane complex is prepared by a process including combining A) a platinous halide; B) a ketone; C) an enone additive distinct from any other starting materials or rearrangement products thereof; and D) a polyorganosiloxane having, per molecule, 2 to 4 silicon bonded terminally unsaturated hydrocarbon groups having from 2 to 6 carbon. The platinum organosiloxane complex prepared by the process is useful as a hydrosilylation catalyst.