BIODEGRADABLE POLYESTER SOLUTION AND USE THEREOF

• Main Authors: OKURA TETSUO, SASHIWA HITOSHI, TANAKA SHIGERU
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a biodegradable polyester solution that contains a non-halogen-based organic solvent showing good solubility in polyhydroxyalkanoate resin, has low environmental load, and has excellent secondary processability.SOLUTION: Provided is a biodegradable polyester solution, which is a biodegradable polyester solution that contains poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) copolymer and non-halogen-based organic solvent, and in which the average content ratio of 3-hydroxyhexanoate in the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) copolymer is less than 16 mol%, and the non-halogen-based organic solvent is at least one selected from the group of organic solvents having 3 to 6 carbon atoms.SELECTED DRAWING: None 【課題】ポリヒドロキシアルカノエート樹脂に良好な溶解性を示す非ハロゲン系有機溶媒を含み、環境負荷が少なく、二次加工性に優れる生分解性ポリエステル溶液を提供すること。【解決手段】ポリ（３－ヒドロキシブチレート－コ－３－ヒドロキシヘキサノエート）共重合体と非ハロゲン系有機溶媒とを含む生分解性ポリエステル溶液であり、前記ポリ（３－ヒドロキシブチレート－コ－３－ヒドロキシヘキサノエート）共重合体中の３－ヒドロキシヘキサノエートの平均含有比率が１６ｍｏｌ％未満であり、前記非ハロゲン系有機溶媒が、炭素数が３～６の有機溶媒の群から選ばれる少なくとも１種である、生分解性ポリエステル溶液。【選択図】なし