C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 15/00 (2006.01) B01J 31/22 (2006.01) C07F 7/08 (2006.01) C08K 5/00 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2259255
The invention concerns the sphere of cross-linking and functionalizing reaction catalysis of polymer chains e.g. combined with silicon. In particular the invention discloses the use of novel platinum based catalytic systems that are heat activatable, homogeneous, stable, long lasting and highly efficient as catalysts. The reagents involved are polyorganosiloxanes (POS) SiH and POS SiVi. The platinum complexes employed are, for example, as in (A).
La présente invention concerne le domaine de la catalyte de réactions de réticulation ou du fonctionnalisation de chaînes de polymères, e.g. siliciés. En particulier, l'invention vise à proposer l'utilisation de nouveaux systèmes catalytiques à base de Pt thermoactivables, homogènes stables, à longue durée de vie et performants sur le plan catalytique. Les réactifs impliqués sont des polyorganosiloxanes (POS) SiH et des POS SiVi. Les complexes platiniques mis en oeuvre dans l'utilisation selon l'invention sont e.g.: (A).
Mignani Gerard
Osborn John
Steffanut Pascal
Rhodia Chimie
Robic
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