Method for producing diisocyanates

Details Method for producing diisocyanates Method for producing diisocyanates

2011-03-29

2011-03-29

Witherspoon, Sikarl A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

Reexamination Certificate

active

07915444

ABSTRACT:
The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.

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U.S. Appl. No. 12/446,460, filed Apr. 21, 2009, Boehling, et al.

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