Catalyst and coating composition containing same

Details Catalyst and coating composition containing same Catalyst and coating composition containing same

C - Chemistry, Metallurgy

09

D

C09D 183/07 (2006.01) B01J 27/045 (2006.01) C08G 77/388 (2006.01) C08L 83/04 (2006.01) C08L 83/07 (2006.01)

Patent

CA 2065717

Abstract of the Disclosure Process for preparing a catalyst for hydrosilylation reactions which comprises reacting (A) a rhodium complex Rh(R2S)3X3, in which R represents alkyl and other specified hydrocarbon groups and X represents Cl or Br with (B) an organohydrogen polysiloxane in the presence of (C) an organosiloxane having silicon-bonded vinyl or allyl groups. The ratio of silicon-bonded hydrogen atoms provided by (B) to each Rh atom provided by (B) is in the range from 0.5:1 to 6.0:1. The invention also includes the use of the catalyst for reacting =SiH with -Si Alkenyl especially in compositions for the treatment of substrates such as paper and plastics.

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