Basf Se Corporation

Volker Frenz

Matthias Weismantel

Uwe Stueven

Harald Keller

Roelof F Van Der Meer

Wilfried Heide

Stefan Blei

Stefan Bruhns

Dennis Lösch

Volker Seidl

Theo Smit

Martin Beck

Laurence Pottie

Anna Kowalski

Simone Schillo

Carolin Nadine Dücker

Ernst Jürgen Bauer

Bernhard Steinmetz

Elisabeth Selzer

This invention relates to a process for stabilizing polymers with oligomeric carbodiimides containing at least one heterocyclic end group and stabilizers. The oligomeric carbodiimides may be compounds of the general formula (I): where A, Aare each independently, identically or differently, hydrocarbon groups having 2 to 20 carbon atoms, B, Bare each independently, identically or differently, heterocycles, C-C-alcohols, polyetherols, polyesterols, amines, polyether amines, polyester amines, thioalcohols, polyether thiols, polyester thiols; R, Rare each independently, identically or differently: n is an integer from 2 to 100, and A, A, Band Bmay each be substituted at any desired position by C-C-alkyl, C-C-alkenyl, C-C-alkynyl, C-C-alkoxy, carbonyl oxygen (&#x2550;O) or halogen, with the proviso that at least one Bor Bsubstituent is a heterocyclic end group. The invention also relates to compositions of the oligomeric carbodiimides and mixtures.

Use of oligomeric carbodiimides as stabilizers

Growing community of inventors

Altleiningen, Germany

Volker Frenz