USE OF SUCCINNITRILE IN THE PRODUCTION OF POLYISOCYANATES CONTAINING IMINOOXADIAZINDIONE GROUPS
The present invention relates to a method for producing polyisocyanates comprising iminooxadiazinedione groups, wherein at least one monomeric di- and/or tri-isocyanate is oligomerized in the presence of at least one catalyst and succinonitrile. The invention relates further to a reaction system for...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention relates to a method for producing polyisocyanates comprising iminooxadiazinedione groups, wherein at least one monomeric di- and/or tri-isocyanate is oligomerized in the presence of at least one catalyst and succinonitrile. The invention relates further to a reaction system for producing polyisocyanates comprising iminooxadiazinedione groups, and to the use of succinonitrile in the production of polyisocyanates comprising iminooxadiazinedione groups by catalyzed modification of monomeric di- and/or tri-isocyanates. |
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