Patent ID: 7875695
Filing Date: 2011-01-25
Classification: A61K

Abstract:
1. A hydrophilic organopolysiloxane composition of the hydrosilylation reaction cure type for use as dental impression material, comprising as essential components, (A) a diorganopolysiloxane having at least 0.1 silicon-bonded alkenyl group in a molecule, (B) a liquid or solid organopolysiloxane having the average compositional formula (1): wherein R is each independently a substituted or unsubstituted monovalent hydrocarbon group, alkoxy or hydroxyl group, 0.1 to 80 mol % of the entire R being alkenyl, and p is a positive number satisfying 1≦p<2, said organopolysiloxane comprising SiO (C) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, (D) a hydrosilylation catalyst, and (E) a polyether having the average compositional formula (2): wherein R said component (E) being present in an amount of 10 to 100 parts by weight per 100 parts by weight of components (A), (B), and (C) combined.