ARTIFICIAL LEATHER AND METHOD FOR PRODUCING SAME

• Main Authors: SAKATA Kazuki, KAGATA Hideki
• Format: Patent
• Language: English; French; Japanese
• Published: 09.02.2023
• Subjects: CHEMISTRY; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; LAUNDERING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC CHEMISTRY; PEPTIDES; PERFORMING OPERATIONS; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL

The present invention relates to an artificial leather which is provided with a base material layer that contains a fiber base material, wherein: at least a part of the artificial leather contains a polypeptide derivative; the polypeptide derivative contains a block copolymer that has a first segment containing a polypeptide skeleton and one or more second segments that are bonded to the first segment; the polypeptide skeleton is a recombinant polypeptide skeleton or a hydrophobic polypeptide skeleton; and the second segments each have a molecule group that has a plasticizing function on the polypeptide skeleton. L'invention concerne un cuir synthétique qui comporte une couche de matériau de base contenant un matériau de base de fibres, et qui contient un dérivé de polypeptide dans au moins une partie. Ledit dérivée de polypeptide contient un copolymère séquencé qui possède un premier segment contenant un squelette de polypeptide, et un ou plusieurs seconds segments liés audit premier segment. Ledit squelette de polypeptide consiste en un squelette de polypeptide recombiné ou en un squelette de polypeptide hydrophobe. Lesdits seconds segments contiennent un groupe moléculaire présentant une fonction plastification vis-à-vis dudit squelette de polypeptide. 繊維基材を含む基材層を備える合成皮革であって、前記合成皮革の少なくとも一部にポリペプチド誘導体を含み、前記ポリペプチド誘導体が、ポリペプチド骨格を含む第一のセグメントと、前記第一のセグメントに結合する一又は複数の第二のセグメントと、を有するブロック共重合体を含み、前記ポリペプチド骨格が、組換えポリペプチド骨格又は疎水性ポリペプチド骨格であり、前記第二のセグメントが前記ポリペプチド骨格に対する可塑化機能を有する分子団を含む、合成皮革に関する。