Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters
Reexamination Certificate
2007-12-11
2009-06-02
Witherspoon, Sikarl A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Isocyanate esters
Reexamination Certificate
active
07541487
ABSTRACT:
An isocyanate is produced by reacting a primary amine with phosgene in the gas phase above the boiling point of the amine over an average contact time of 0.05 to 15 seconds under adiabatic conditions.
REFERENCES:
patent: 4847408 (1989-07-01), Frosch et al.
patent: 5391683 (1995-02-01), Joulak et al.
patent: 5449818 (1995-09-01), Biskup et al.
patent: 5633396 (1997-05-01), Bischof et al.
patent: 5679839 (1997-10-01), Armand et al.
patent: 6225497 (2001-05-01), Becker et al.
patent: 7084297 (2006-08-01), Woelfert et al.
patent: 2005/0070734 (2005-03-01), Wölfert et al.
patent: 2006/0025556 (2006-02-01), Koch et al.
patent: 2007/014936 (2007-02-01), None
patent: 2007/028715 (2007-03-01), None
Biskup Klaus
Bruns Rainer
Pohl Fritz
Steffens Friedhelm
Stutz Herbert
Bayer MaterialScience AG
Whalen Lyndanne M.
Witherspoon Sikarl A
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