STAR-SHAPED POLYMER, COATING, COATING LAYER, AND METHOD FOR PRODUCING STAR-SHAPED POLYMER

• Main Authors: TANAKA HISAKAZU, ELIJAH BULTZ
• Format: Patent
• Language: English; Japanese
• Published: 17.02.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a star-shaped polymer that has a narrower molecular weight distribution and shows high tensile strength as a coating layer, and a production method that gives a star-shaped polymer having these characteristics, in high yield.SOLUTION: The inventive star-shaped polymer is a reactant between an arm polymer that is a copolymer or a block polymer and a divinyl compound that is represented by the formula (1). [In the formula (1), L is a methylene, ethylene, propylene, or isopropylene group].SELECTED DRAWING: None 【課題】 本発明が解決しようとする課題は、従来よりも分子量分布が狭く、さらに塗膜としたときに高い引っ張り特性を示す星形ポリマ、及び上記特徴をもつ星形ポリマが得られ、収率が高い星形ポリマの製造方法を提供することにある。【解決手段】 本発明の星形ポリマは、共重合体もしくはブロック重合体であるアームポリマと、下記式（１）で表すジビニル化合物との反応物である。【化１】TIFF2022029117000008.tif2069［式（１）中、Ｌはメチレン、エチレン、プロピレン、又はイソプロピレン基を表す］【選択図】 なし