Compositions based on epoxy resin modified polisiloxano, used for protective coatings

摘要

"Compositions based on epoxy resin modified polisiloxano, used for protective coatings.The present invention relates to a composition of epoxy modified polisiloxano obtained from a combination of the following ingredients: a polisiloxano of formula (1), wherein each R ^ 1 ^ s,Regardless, selected from group comprising hydroxy alkyl radical, and alquoxi, aril which have up to six carbon atoms, each R ^ 2 ^ s, regardless.Selected from group comprising radicals of hydrogen, alkyl and aril which have up to six carbon atoms.In which n is selected so that the molecular weight to the polisiloxano is in the range of approximately 400 to 10000, with an epoxy resin having more than one group of 1.2 - Epoxy per molecule with an epoxy equivalent weight in the range of 100 to approximately 5.000; and a hardener component of amino has hidrogu00eanios assets capable of reacting with the epoxy groups in the epoxy resin u00e9poxi to form polymers which contain groups of hidru00f3xil,It can react with silanol groups of polisiloxano hydrolyzed to form a network of polymers.In the chain of epoxy polymer and polymer polisiloxano if polymerizes to form a polymer composition of epoxy modified polisiloxano cured.