Abrasion-resistant yarn, fibres and filaments, e.g. for production of carpets, belts or nets, made from polyamide or polyester which is modified by coupling groups derived from a diamine, diol or dicarboxylic acid

• Main Authors: BOUQUEREL FRANCK, ROBERT GILLES, THIERRY JEAN FRANCOIS, CLEMENT FLORENCE
• Format: Patent
• Language: English; French
• Published: 28.01.2005
• Edition: 7
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; EMBROIDERING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; KNITTING; KNOTTING NOT OTHERWISE PROVIDED FOR; LACE-MAKING; MAKING KNOTTED CARPETS OR TAPESTRIES; MAKING NETS BY KNOTTING OF FILAMENTARY MATERIAL; METHODS OF PRODUCING PAPER THEREON; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; PAPER-MAKING; PAPER-MAKING MACHINES; PRODUCTION OF CELLULOSE; SEWING; SPINNING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TEXTILES; TRIMMINGS; TUFTING

Polymer for the production of abrasion-resistant fibre, consists of two macromolecular polycondensate chains linked by a co-condensed hydrocarbon-based group with at least 2 carbon atoms. Abrasion-resistant yarn, fibres and filaments (ARF) obtained from a composition with a polymeric matrix comprising a polycondensate consisting of 30-100 mol% macromolecular chains of formula (I), and 0-70 mol% macromolecular chains of formula (II). R 3-(X-R 2-Y) n-X-A-R 1-A-X-(Y-R 2-X) m-R 3 (I) R 4-(Y-R 2-X) p-R 3 (II) Where: -X-Y- : a radical formed by the condensation of two reactive functions F 1 and F 2; F 1the precursor of -X- and F 2 = the precursor of -Y- or vice versa, F 1 and F 2 being unable to react with themselves; A : a covalent bond or a 1-20C aliphatic hydrocarbon group which may contain heteroatoms; R 1a hydrocarbon group with at least 2 C atoms (linear or cyclic, aromatic or aliphatic, optionally with heteroatoms); R 2a 2-20C hydrocarbon group (optionally branched, aliphatic or aromatic); R 3, R 4H, hydroxyl or a hydrocarbon group; n, m, p : 50-500 Independent claims are also included for articles containing ARF, especially felt for paper machines, carpets, rugs, ropes, belts, fabric for transfer printing, filter cloth and netting. La présente invention concerne des fils, fibres ou filaments, ayant une résistance à l'abrasion améliorée, et notamment utilisables pour la réalisation de feutres pour machines à papier. Elle concerne plus particulièrement des fils, fibres ou filaments à base de polyamide ou de polyester.