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US 2015/0175776 A1Published application
Method for stabilizing polymers containing ester groups
AssigneeRhein Chemie Rheinau GmbH
InventorsWilhelm Laufer, Armin Eckert
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Abstract
The invention relates to methods for stabilizing polymers containing ester groups, in which specific monomeric aromatic carbodiimides are added in liquid-dosed form in the course of preparation thereof and/or processing thereof.
Claims5
A method for stabilizing polymers containing ester groups, characterized in that carbodiimides of the formula (I)
- where R1, R2, R4 and R6 is each independently C3-C6-alkyl
- and R3 and R5 is each independently C1-C3alkyl,
- are added in liquid form (liquid-dosed) in continuous or batch wise processes for preparation and/or processing thereof.
Dependencies are inferred from the claim text.