Patent · US Expired

Permanently stabilized polymers produced by after-treatment with piperidine compounds

US4153596A · kind A · utility

39Cited by

3References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Harald Oertel · Odenthal, DE
Paul Uhrhan
Reinhard Lantzsch · Leverkusen, DE
Ernst Roos
Dieter Arlt · Cologne, DE
Hans Schroer · Dormagen, DE

Key dates

Filing date	Sep 19, 1977
Grant date	May 8, 1979
Priority date	—
Expiry date	Sep 19, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/833
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

This invention relates to permanently stabilized polymers containing substituted piperidine derivatives chemically attached to the polymer molecule through O- or N-atoms. Compounds based on 2,2,6,6-tetraalkyl piperidines have now been found which, on the one hand, have a very high stabilizing activity and, on the other hand, contain one or more reactive groups through which they are able to react with the polymers to be stabilized. Stabilized polymers, preferably polyurethane elastomer filaments, films and coatings with a permanent washing-resistant, boiling resistant, acid-resistant, dry-cleaning-resistant and solvent-resistant stabilization based on 2,2,6,6-tetraalkyl piperidine light stabilizers are thus obtained.

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