[EN] CURABLE POLYORGANYLOXY-SILOXANE COMPOSITIONS<br/>[FR] COMPOSITIONS DE POLYORGANYLOXY-SILOXANE DURCISSABLES
申请人:WACKER CHEMIE AG
公开号:WO2021118548A1
公开(公告)日:2021-06-17
The present invention is a curable silicone composition comprising a linear polyorganyloxy-siloxane component (A) of the following general formula (I) R1aR23-aSiO(R2 2SiO)b(R3HSiO)c(R3R4OSiO)dSiR1aR23-a wherein, R1, R2, R3, a, b, c are as defined above and R4 is a hydrocarbon derivative, which has from 1 to 15 carbon atoms having linear, branched, or cyclic arrangements, and may be substituted by OH groups, halogen atoms, silyl groups, siloxy groups, -CN, -COOR6, -OCOOR7, -CONR8R9, -OCONR10R11, -NR12CONR13R14, -SO2-R15, -OSO2-R16, -OP(OR17) (OR18), 1,3-dioxolan-2-one, wherein the carbon may be interrupted by nonadjacent groups which are selected from -(CO)-, -O-, -S- or -NR19-, R6 to R19 are each a monovalent hydrocarbon radical which has from 1 to 18 carbon atoms and may be substituted by halogen atoms, and d comprises up to 60 mol % of the silicon atoms of the organosilicon compound (A) of the general formula (I); of an organosilicon compound (B) containing Si-H-bonded hydrogen atoms; and a curing promoting component (C) is selected from a transition metal catalyst (C1) a peroxide (C2); The present invention further relates to the linear polyorganyloxy-siloxane component (A) and a process for preparing component (A).