| 摘要 |
A curable phenylorganosiloxane polymer composition comprising: (a) 100 parts by weight of a phenylorganosiloxane having a viscosity of at least 10000 mPa·s at 25° C. and at least two reactive groups per molecule selected from (i) —OH or hydrolysable groups and (ii) unsaturated groups; (c) 0 to 500 parts by weight of fillers per 100 parts by weight of (a); (d) a suitable cure package comprising a cross-linker and a catalyst the suitable cure package being selected from a silane or polyorganosiloxane and a condensation catalyst when (a) is (a) (i) or a hydrosilylation catalyst when (a) is (a) (ii); and (b) 0.1 to 300 parts by weight of at least one phenyl siloxane resin per 100 parts by weight of (a). The compositions are especially useful in sealants (particularly in sealants for insulating glass units (IGUs), due to their low gas permeability), in conformal coatings and for corrosion protection. |
