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US 2023/0357482 A1Published application
Copolymer having polyamide blocks and having polyether blocks for the manufacture of a foamed article
AssigneeArkema France
InventorsBlandine TESTUD, Quentin PINEAU
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Abstract
The present invention relates to a copolymer having polyamide blocks and having polyether blocks (PEBA) which can be used for the manufacture of an article, preferably a foamed article. The invention also relates to expanded particles prepared from said copolymer and to the manufacture of a foamed article from said expanded particles.
Claims15
Copolymer having polyamide blocks and having polyether blocks (PEBA), suitable for the preparation of expanded particles, exhibiting:
- a crystallinity such that the enthalpy of fusion, measured by DSC during the second heating at a rate of 20° C./minute according to Standard ISO 11357-3 (ΔHm(2)), is equal to or greater than 15 J/g, this melting corresponding to that of the amide units,
- a Vicat softening temperature (VST) of greater than or equal to 75° C. and less than or equal to 120° C. according to Standard ISO 306 (method A50).
Dependencies are inferred from the claim text.