Continuous dilution of polyisocyanates
AssigneeCovestro Deutschland AG
InventorsStefan Groth, Ruiwen Wu, Antonio Midolo
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Abstract
The invention relates to a process for producing a polyisocyanate composition comprising addition of at least one isocyanate-inert solvent to at least one polyisocyanate, characterized in that the addition of the solvent is carried out in one or more stages and at least one of these stages is performed as a continuous dilution. The invention further relates to the polyisocyanate compositions obtainable by the process, to the use of the polyisocyanate compositions, to a two-component system containing the polyisocyanate composition and to composite systems produced with the two-component system.
Claims11
A process for producing a polyisocyanate composition comprising addition of at least one solvent to at least one polyisocyanate based on tolylene diisocyanate, wherein the addition of the solvent is carried out in one or more stages and at least one of these stages is performed as a continuous dilution and wherein the solvent is inert to isocyanate.
Dependencies are inferred from the claim text.