Patent · US Active

Functional materials having a controllable viscosity or reversible crosslinking via aza Diels-Alder reactions with bishydrazones or conjugated bis-Schiff bases

US8980999B2 · kind B2 · utility

2Cited by

1References

15Claims

0Family size

Assignee

Evonik Röhm GmbH · DE

Inventors

Friedrich Georg Schmidt · Haltern am See, DE
Stefan Hilf · Rodenbach, DE
Christopher Barner-Kowollik · Blankenloch, DE
Jiawen Zhou · Shanghai, CN

Key dates

Filing date	Jul 27, 2011
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Sep 22, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2400/10
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to innovative materials which are reversibly crosslinkable by means of a thermoreversible mechanism and/or whose viscosity is reversibly adjustable. Through the use of bishydrazones or conjugated bis-Schiff bases as diene components in aza-Diels-Alder reactions, functional materials are generated that feature controllable viscosity and/or reversible crosslinking.

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