Mono-tertiary-alkylated toluenediiso-cyanates and derivatives.

摘要

This invention relates to a class of tertiary-alkyltoluene-diisocyanates having alkyl groups ortho to an isocyanate group. More particularly the aromatic isocyanates are represented by the formulas: <CHEM> wherein R1, R2 and R3 are C1-3 alkyl groups or R2 and R3 are combined to form a C5-6 membered ring. The above described alkylated aromatic diisocyanates have been found to be well suited for use as an isocyanate reactant in forming polyurethane and polyurea elastomer systems.