The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Mar. 15, 2018
Basf SE, Ludwigshafen am Rhein, DE;
Berend Eling, Lemfoerde, DE;
Hans-Josef Thomas, Ludwigshafen, DE;
Peter Deglmann, Ludwigshafen, DE;
Janina Hengelsberg, Lemfoerde, DE;
Tristan Pelzer, Hamburg, DE;
Gerrit A. Luinstra, Hamburg, DE;
Abstract
Described herein are processes for producing moldings comprising oxazolidinone groups, where polyisocyanate (a) is mixed with at least one organic compound (b) having two or more epoxide groups, at least one catalyst (c) for the isocyanate/epoxide reaction, and optionally auxiliary and additive materials (d) to form a reaction mixture, which is introduced into or applied to a mold and reacted to give moldings including oxazolidinone groups, where the catalyst (c) for the isocyanate/epoxide reaction includes a compound of the general formula [M(R)(R)(R)(R)][X I], where M is a nitrogen atom or a phosphorus atom, R, R, Rand Rare an organic radical, X is fluorine, chlorine, bromine or iodine, I is iodine, and n stands for rational numbers from 0.1 to 10.