RECYCLABLE ELASTIC FILAMENT BASED ON A POLYAMIDE-POLYETHER BLOCK COPOLYMER
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Jul 25, 2022
filing date -
Jul 25, 2022
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Abstract
The invention relates to an elastic filament comprising a copolymer containing polyamide blocks and polyether blocks, —the polyamide blocks being chosen from PA 11, PA 12, PA 1010, PA 1012, PA 1014, the copolymer thereof and the mixture thereof, —the polyether blocks being blocks derived from polytetramethylene glycol having a weight-average molecular mass of between 500 and 3000 g/mol, —the enthalpy of fusion of the copolymer being between 15 and 50 J/g.
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