New platinum complexes useful, in particular, as photoactivatable hydrosilylation catalysts and process for applying them.

摘要

Novel platinum-based organometallic complexes for use particularly as a hydrosilylation cross-linking catalyst for Si-H type polyorganosiloxanes (A) and aliphatically unsaturated and/or reactive-functional compounds (B). Said complexes are of formulae (Ia) and (Ib), wherein R1=R2=R3=CH3= and R4=R5=H. Light-cross-linkable compositions containing polyorganosiloxanes (A) and (B) and catalysts including the above-mentioned complexes are disclosed. The complexes are useful in a non-stick silicone coating for paper.