Catalyst and coating composition containing same

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

1992-04-06

1993-12-28

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502159, B01J 3704, B01J 3130, B01J 2713, B01J 27045

Patent

active

052739465

ABSTRACT:
Process for preparing a catalyst for hydrosilylation reactions which comprises reacting (A) a rhodium complex Rh(R.sub.2 S).sub.3 X.sub.3, 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 .ident.SiH with .ident.Si Alkenyl especially in compositions for the treatment of substrates such as paper and plastics.

REFERENCES:
patent: 3296291 (1967-01-01), Chalk
patent: 4064154 (1977-12-01), Chandra et al.
patent: 4287094 (1981-09-01), Panster et al.

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