| 主权项 |
1. A catalytic composition Y′ comprising:
a) a catalytically effective amount of at least one polycondensation catalyst A which is a carbene of formula (I) below: with:
the symbol X being chosen from the group consisting of the following atoms or groups: —O—, —S—, —N(R)— and —P(R)— with R being a C1-C30 group,R1, R2 and R3 being identical or different, optionally substituted, C1-C30 groups optionally comprising at least one atoms selected from the group consisting of: S, P, Si, N and O, andthe symbols X, R1, R2 and R3 taken in pairs can form a 5-, 6- or 7-membered ring, and b) at least one solvent comprising at least one alcohol G;
optionally at least one polyorganosiloxane resin D; andoptionally at least one filler E. |
