Vencorex France

Perstorp France

Philippe Barbeau

Jean-Marie Bernard

Jean-Marc Frances

Philippe Olier

Damien Bourgeois

Johannes Schwarz

Jean-Marie Alphonse Etienne Bernard

Disclosed is a compositions comprising isocyanate sub-composition comprising by weight not more than 5% of diisocyanate monomers, a dehydrating agent selected among compounds bearing dihydrocarbylsilyl groups bonded to a metalloid of the chalcogen column or to an atom of the nitrogen column. The invention is applicable to the coatings industry, in particular paints and adhesives.

Composition comprising silyl derivative as dehydrating agent

The mixture of the invention comprises at least one cycloaliphatic polyisocyanate and at least one solvent comprising an ester function and an ether function. An aqueous emulsion can be obtained from this mixture which also comprises a compound bearing a function with a mobile hydrogen, selected from primary or secondary hydroxyl functions, phenol functions, primary and/or secondary amino functions, carboxylic functions and a thiol function or a compound containing precursor functions capable of freeing hydroxyl functions. The emulsion can be used for the manufacture of coatings on a substrate of cement, of wood or especially of leather, and also for the manufacture of adhesives.

Mixture based on a polyisocyanate and a solvent of ether ester type, aqueous emulsion obtained from this mixture and use of this emulsion for the manufacture of coatings and adhesives

Compositions that can be polymerized and/or crosslinked into coatings by cationic and/or radical irradiation contain at least one photoinitiator and at least one compound having at least one isocyanate function.

Compositions polymerizable/crosslinkable by cationic/radical irradiation

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Genas, France

Philippe Barbeau