Treatment of isocyanate residue

Details Treatment of isocyanate residue Treatment of isocyanate residue

1993-12-13

1996-04-09

Thibodeau, Paul J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524590, 524284, 588205, 588206, 588251, C08K 320, C08L 7500

Patent

active

055063012

ABSTRACT:
The present invention is directed to a process for treating an isocyanate distillation residue comprising
(a) mixing acidified water with an organic material selected from limonene, limonene oxide, menthoxyacetic acid, menthyl chloroformate, and .gamma.-terpinene to form a first mixture;
(b) mixing an isocyanate distillation residue with the mixture of step (a) to form a second mixture; and
(c) stirring the mixture of step (b) until the pH of the mixture is about 7.

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