Abstract:
A composition has been found, comprising a) at least one compound containing carbamoylsulfonate groups and b) at least one carboxylic acid containing less than 0.001% by weight, based on the composition, of emulsifier, the compounds containing carbamoylsulfonate groups in component a) being a reaction product of at least one organic polyisocyanate and at least one bisulfite and/or disulfite, characterized in that the organic polyisocyanate has a molecular weight of less than 400 g/mol and NCO groups bonded to aliphatic or cycloaliphatic systems.
Abstract:
The present invention is directed towards a tanned leather product that is impregnated with a plurality of microspheres containing a temperature stabilizing material. The present invention is also directed to a tanning process for embedding the microspheres into the leather. The thermal stabilizing material is a phase change material that allows the leather to have enhanced thermal properties when exposed to heat or cold.
Abstract:
Bisulfit-blockierte Polyether-modifizierte Polyisocyanate eignen sich in Kombination mit mineralischen Gerbstoffen hervorragend für die Ledergerbung.
Abstract:
A process for producing leather using one or more reaction products of (a) triamines or higher amines with (b) at least one compound of the general formula (I) where R1 is selected from hydrocarbon radicals having up to 5000 carbon atoms, unbranched or branched, saturated or having from one up to three C-C double bonds, and A1 from groups capable of reaction with amines.