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Rhodia Chimie SAS
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Rhone Poulenc Chimie SA
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Publication of DE3771293D1publicationCriticalpatent/DE3771293D1/de
C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
C07C273/189—Purification, separation, stabilisation, use of additives
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P20/00—Technologies relating to chemical industry
Y02P20/50—Improvements relating to the production of bulk chemicals
Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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Chemical & Material Sciences
(AREA)
Organic Chemistry
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
DE8787420256T1986-09-301987-09-24Verfahren zur isolierung und reinigung von biuretgruppen aufweisenden polyisocyanaten.
Expired - Fee RelatedDE3771293D1
(de)
Manufacture of polyisocyanate having isocyanurate groups, solution suitable as catalyst component therefor and use for polyurethane manufacture as isocyanate component
Verwendung von harnstoff- und/oder biuretgruppen aufweisenden polyisocyanat-zubereitungen, als isocyanatkomponente bei der herstellung von kunststoffen nach dem isocyanat-polyadditionsverfahren.
Verwendung von harnstoff- und/oder biuretgruppen aufweisendenpolyisocyanat-zubereitungen als isocyanat komponente bei der herstellung von kunststoffen nach dem verfahren der reaktionsspritzgusstechnik.
Process for the preparation of aromatic polyisocyanates containing urea groups and/or biuret groups and their use as an isocyanate component in the production of polyurethanes
Verfahren zur herstellung von carbodiimidgruppen enthaltenden, blockierten polyisocyanaten, und deren verwendung zur herstellung von drahtlackierungen.