Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2005-03-18
2009-02-24
Cooney, John (Department: 1796)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C502S167000, C564S463000, C564S508000, C564S511000, C564S512000
Reexamination Certificate
active
07495131
ABSTRACT:
Tertiary amines useful as catalysts for preparing polyurethane foams are provided. Tertiary amines are employed to catalyze the trimerization reaction of isocyanates and the reaction between isocyanates and active hydrogen-containing compounds, such as a polyol and/or a blowing agent. Such tertiary amine has the general formulawherein R1, R2, Y, Z, and n are defined herein.
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Burdeniuc Juan Jesus
Kamzelski Ann Zdancewic
Air Products and Chemicals Inc.
Cooney John
Leach Michael
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