Maro Publications

Hydrolysis Stabilizers



Maro Topics


Patents with Abstracts




Polyester films with epoxidized vegetable oils as stabilizers are described in EP-A-1 634 914 and EP-A-1 842 871. The toxic degradation products which are typical of carbodiimides do not occur here, the incorporation into the polyester matrix is good given suitable selection of the oils, and there is good hydrolysis stabilization of the films. Disadvantages which occur in application are, however, recurring production intervals with an extreme tendency to gel formation in production. When the gel level becomes too high, this results in breakoffs, and production of the film becomes impossible for a time. Production then has to be stopped and the extrusion has to be cleaned. [Kliesch  et al, US Patent 8,277,710 (10/2/2012)]


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
Tel: 610 363 9920
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

* Date of latest addition; date of first entry is10/5/2012.