Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters
Reexamination Certificate
2007-01-03
2010-11-02
Cano, Milton I (Department: 1796)
Organic compounds -- part of the class 532-570 series
Organic compounds
Isocyanate esters
C560S026000, C560S115000, C560S158000, C548S951000, C548S952000, C548S335100
Reexamination Certificate
active
07825276
ABSTRACT:
The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number containing carbodiimide (CD) and/or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process and the use thereof for the preparation of blends with further isocyanates and for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.
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Steinwegs Marcus
Wershofen Stefan
Bayer MaterialScience AG
Brown N. Denise
Cano Milton I
Cheung Noland J.
Leonard Michael
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