METHOD FOR PRODUCING ISOCYANATE MIXTURES CONTAINING ISOCYANURATE GROUPS
The invention relates to a continuous method for producing an isocyanurate-containing isocyanate mixture, in which in a step a) a mixture of a first and a second isocyanate component and an isocyanate group trimerization catalyst is provided; in a step b) the mixture obtained in step a) is reacted i...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | English French German |
Published |
01.03.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to a continuous method for producing an isocyanurate-containing isocyanate mixture, in which in a step a) a mixture of a first and a second isocyanate component and an isocyanate group trimerization catalyst is provided; in a step b) the mixture obtained in step a) is reacted in a first residence time zone at an elevated temperature; in a step c), the reaction mixture obtained in step b) is further heated in a second residence time zone, optionally after adding a stopper; and in a step d), the reaction mixture obtained in step c) is cooled down in a third residence time zone by way of lowering the temperature, thus obtaining the desired isocyanurate-containing isocyanate mixture. |
---|---|
Bibliography: | Application Number: EP20180815219 |