Synthesis of urethanes and polyurethanes catalysed by carbenes
AssigneePerstorp France
InventorsGerard Mignani, Mathias Destarac, Daniel Taton, Yves Gnanou, Antoine Baceiredo, Tsuyoshi Kato, Fabian Bonnette, Gopakumar Sivasankarapillai
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Abstract
The present invention relates to a process for preparing a compound comprising at least a urethane group —HN—C(═O)—O, said process comprising a step (E) in which a compound (I) comprising at least an isocyanate functional group —N═C═O is reacted with an organic compound (II) carrying at least a hydroxyl group —OH, said reaction being carried out in a presence of a carbene (III) used as a catalyst.
Claims33
A process for preparing a compound comprising at least a urethane group —HN—C(═O)—O, said process comprising a step (E) wherein a compound (I) comprising at least an isocyanate functional group —N═C═O is reacted with an organic compound (II) carrying at least a hydroxyl group —OH, this reaction being carried out in the presence of a carbene (III) used as a catalyst.
A kit for preparing a compound comprising at least a urethane group —HN—C(═O)—O, said kit including:
- a compound (I) comprising at least an isocyanate functional group —N═C═O contained in a first vessel;
- an organic compound (II) carrying at least a hydroxyl group —OH, separate from the compound (I) and contained in a second vessel which is different from the first vessel, said compound (II) being isolated from the compound (I);
- a carbene contained in a vessel.
Dependencies are inferred from the claim text.