abstract |
The invention relates to a silicone-polyether copolymer having the formula Xg-Y, wherein each X is an independently selected silicone moiety having a particular structure, Y is a linear or branched polyether moiety, and the index g is on average higher The invention also relates to a process for preparing the silicone-polyether copolymer, comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation reaction catalyst. The invention also relates to a sealant, the sealant comprising the silicone-polyether copolymer and a condensation reaction catalyst. |