COMPOSITIONS EXHIBITING GOOD MIXING PROPERTIES AND USE OF SILYL DERIVATIVES AS ISOCYANATE ADDITIVES, IN PARTICULAR OF ISOCYANATE MIXTURE

摘要

Composition (I) for successive or simultaneous addition, comprises an isocyanate subcomposition comprising di-isocyanate monomers (5, (preferably 0.5)%) and monomers resulting from amino acid and comprising a content of isocyanate groups (equal to 55%); and at least a compound carrying dihydrocarbylsilylene groups and hydrocarbyl (hydrocarbyloxy) silylene group. Composition (I) for successive or simultaneous addition, comprises an isocyanate subcomposition comprising di-isocyanate monomers (5, (preferably 0.5)%) and monomers resulting from amino acid and comprising a content of isocyanate groups (equal to 55%); and at least a compound carrying dihydrocarbylsilylene groups [-(Hc)2Si-] and hydrocarbyl (hydrocarbyloxy) silylene group [-(Hc)(Hc-O-)Si], attached to a metalloid of chalcogen column or to an atom of nitrogen column, content of such groups is at least equal to 0.1% (mass) and maximum to 3% expressed by mass of silicon atom (M.A. = 28.1) contained in a dihydrocarbylsilylene compared to the quantity of monomers corresponding to the units.