Catalyst compositions and their use in the preparation of release coatings

摘要: A catalyst composition comprising a solution of an organo-metallic complex platinum or rhodium in liquid allyl ether which has b.p. at least 150° C. 1 bar and is free from groups having adverse effect on the catalytic affect complex; polyorganosiloxane coating compositions containing Si--H polysiloxane Si--OH, Si-vinyl Si-allyl groups, as defined above; use for preparing release coatings substrates. In substrates, especially paper, with based heat-curable compositions, complexes can be used catalysts provided they are dissolved composition. The low-boiling solvents hitherto have disadvantages causing atmospheric pollution requiring solvent-recovery plant. ethers place to give satisfactory without mentioned disadvantages.