WORKING-UP PROCESS FOR CROSS-LINKED ISOCYANATE-DISTILLATION RESIDUES CONTAINING UREA GROUPS, AND THE USE OF THE PRODUCTS THUS OBTAINED AS STARTING MATERIAL IN THE PRODUCTION OF PLASTICS

This invention relates to the preparation of soluble compounds containing hydroxyalkyl and urethane groups by alcoholysis from highly cross-linked insoluble distillation residues (from the commercial production of tolylene diisocyanate) which have reacted completely or almost completely with water....

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Bibliographic Details
Main Author REISCHL, ARTUR
Format Patent
LanguageEnglish
German
Published 23.06.1982
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
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Summary:This invention relates to the preparation of soluble compounds containing hydroxyalkyl and urethane groups by alcoholysis from highly cross-linked insoluble distillation residues (from the commercial production of tolylene diisocyanate) which have reacted completely or almost completely with water. The products obtained as solutions, solvent-free melts or powders may be used as raw materials for the production of synthetic resins or their intermediates which are characterized by reduced combustibility. They may also be recyclized by simple hydrolysis into the tolylene diamines ("TDA") from which tolylene diisocyanate ("TDI") is derived.
Bibliography:Application Number: EP19800106202