Preparation of Low-Viscosity, Isocyanurate and Urethane Group-Containing Polyisocyanate Mixtures
Номер патента: CA2105325A1
Опубликовано: 03-03-1994
Автор(ы): Günter Mohrhardt, Hans Renz, Stefan Wolff
Принадлежит: BASF AKTIENGESELLSCHAFT, Günter Mohrhardt, Hans Renz, Stefan Wolff
Опубликовано: 03-03-1994
Автор(ы): Günter Mohrhardt, Hans Renz, Stefan Wolff
Принадлежит: BASF AKTIENGESELLSCHAFT, Günter Mohrhardt, Hans Renz, Stefan Wolff
Реферат: A process for the preparation of isocyanurate and urethane group-containing and, if desired, uretdiode and allophanate group-containing polyisocyanate mixtures by partially cyclizing organic, preferably (cyclo)aliphatic diisocyanates, in the presence of trimerization catalysts, deactivating these catalysts, reacting the partially trimerized, isocyanurate and, if desired, uretdiode group-containing polyisocyanate mixture with 0.5 to 10 mol % of at least one aliphatic or cycloaliphatic alcohol and/or polyoxyalkylene alcohol, and separating off the monomeric diisocyanates.
Preparation of low-viscosity, isocyanurate and urethane group-containing polyisocyanate mixtures.
Номер патента: ZA936431B. Автор: Hans Renz,Stefan Wolff,Guenter Mohrhardt. Владелец: Basf Ag. Дата публикации: 1995-03-01.