Patent · US Active

Process for the synthesis of polyoxazolidinone compounds with high stability

US10385167B2 · kind B2 · utility

2Cited by

5References

19Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Thomas Ernst Müller · Aachen, DE
Christoph Gürtler · Cologne, DE
Susmit Basu · Leatherhead, GB
Claudine Rangheard · Munich, DE
David Rivillo · Floresta, BR
Walter Leitner · Aachen, DE
Burkhard Kohler · Leverkusen, DE

Key dates

Filing date	Feb 9, 2016
Grant date	Aug 20, 2019
Priority date	—
Expiry date	Jun 29, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G71/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to polyoxazolidinone compounds, a method for the production of polyoxazolidinone compounds, comprising the step of reacting a biscarbamate compound with a bisepoxide compound in the presence of a mono-carbamate, a mono-isocyanate and/or a mono-epoxide compound as chain regulator and a suitable base having a pKb value of ≤9 as catalyst. The invention further relates to the use of polyoxazolidinone compounds with high thermal stability.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.