Olin Corporation

Robert M Early

Wilhelm J Schnabel

James M O'Connor

Michael L Rosin

Isocyanate-reactive compounds are prepared by the reaction of TDI distillation residue with a polyol in such proportions as to obtain a reaction product having an OH-number (mg KOH/g) of about 200 to about 700. The TDI distillation residue is obtained from the distillation of the product of phosgenating toluene diamine to the corresponding toluene diisocyanate and has a toluene diisocyanate content of about 30% to about 70% by weight. The isocyanate-reactive compounds are useful in polyurethane formulations.

Isocyanate-reactive compounds from TDI distillation residue and

Isocyanate-reactive compounds are prepared by the reaction of a modified TDI distillation residue intermediate with a polyol. The modified TDI distillation residue intermediate is the reaction product of TDI distillation residue with a monohydroxylic compound. The isocyanate-reactive compounds are useful in polyurethane formulations.

Isocyanate-reactive compounds from modified TDI distillation residue

A process for preparing select symmetrical, aromatic carbodiimides by reacting select symmetrical, aromatic ureas with phosgene in an inert liquid reaction medium. The aromatic carbodiimides produced are useful as components in the preparation of cellular and noncellular polyurethanes, and they can also be used as components in the preparation of isocyanate compositions.

Growing community of inventors

North Branford, CT, United States of America

Robert M Early