RECYCLABLE ELASTIC FILAMENT BASED ON A POLYAMIDE-POLYETHER BLOCK COPOLYMER

• Main Authors: MOUGNIER, Sébastien Jun, PINEAU, Quentin, LUCE, Ludovic
• Format: Patent
• Language: English; French
• Published: 02.02.2023
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to an elastic filament comprising a polyamide-polyether block copolymer, - the polyamide blocks being chosen from PA 11, PA 12, PA1010, PA 1012, PA 1014, the copolymer thereof and the mixture thereof, - the polyether blocks being derived from polytetramethylene glycol with a weight-average molecular mass of between 500 and 3000 g/mol, - the fusion enthalpy of the copolymer being between 15 and 50 J/g. L'invention porte sur un filament élastique comprenant un copolymère à blocs polyamide et à blocs polyéther, -les blocs polyamide étant choisis parmi le PA 11, PA 12, PA1010, PA 1012, PA 1014, leur copolymère et leur mélange, -les blocs polyéther étant des blocs issus du polytétraméthylèneglycol de masse moléculaire moyenne en poids comprise entre 500 et 3000 g/mol, -l'enthalpie de fusion du copolymère étant comprise entre 15 et 50 J/g.