Stabilization Of Polyamides
AssigneeClariant Plastics & Coatings Ltd
InventorsChristoph KROEHNKE, Matthias ZAEH
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Abstract
The invention relates to a method for stabilization of polyamides, which comprises admixing the polyamides before or during processing with an effective amount of one or more compounds of formula (1) where R1 and R2 each represent a sterically hindered cyclic amine.
Claims12
A method for the stabilization of at least one polyamide, comprising the step of admixing the at least one polyamide before or during processing with an effective amount of one or more compounds of formula (1)
- wherein R1 and R2 are each a sterically hindered cyclic amine.
A stabilizer masterbatch comprising from 5 to 95 wt % of one or more compounds of formula (1)
- wherein R1 and R2 are each a sterically hindered cyclic amine, and from 95 to 5 wt % of a thermoplastic carrier polymer.
A stabilized polyamide comprising at least one compound of formula (1)
- wherein R1 and R2 are each a sterically hindered cyclic amine.
Dependencies are inferred from the claim text.