POLYMER-CONTAINING COMPOSITION, ANTIFOULING COATING COMPOSITION, AND METHOD FOR PRODUCING POLYMER-CONTAINING COMPOSITION

• Main Authors: URA MASATOSHI, TANIGUCHI KANA, ASAI GAKUBUN, KATSUMATA TAKUMI, KAMON YOSHIHIRO, NAKAMURA JUNICHI
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• 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 an antifouling coating composition capable of forming a coating film excellent in water resistance and hardness, a (meth)acrylic copolymer, a polymer solution and a polymer-containing composition which are suitable for obtaining the antifouling coating composition, and a method for producing the (meth)acrylic copolymer.SOLUTION: The polymer solution contains a (meth)acrylic copolymer, which has a constituent unit (A3) having at least one structure (III) selected from the group consisting of structures represented by the following formula (4) or (5) and a constituent unit (B) derived from a macromonomer (b), and an organic solvent and has a viscosity at 25°C of 5×10mPa s or less: -COO-M-OCO (4) and -COO-M-R(5) (where M represents Zn, Cu, Mg or Ca, and Rrepresents an organic acid residue other than a (meth)acryloyloxy group).SELECTED DRAWING: None 【課題】耐水性及び硬度に優れた塗膜を形成できる防汚塗料組成物、前記防汚塗料組成物を得るために好適な（メタ）アクリル系共重合体、重合体溶液及び重合体含有組成物、ならびに前記（メタ）アクリル系共重合体の製造方法を提供する。【解決手段】下記式（４）又は（５）で表される構造からなる群から選ばれる少なくとも１種の構造（ＩＩＩ）を有する構成単位（Ａ３）と、マクロモノマー（ｂ）由来の構成単位（Ｂ）と、を有する（メタ）アクリル系共重合体と、有機溶剤と、を含み、２５℃における粘度が、５×１０４ｍＰａ・ｓ以下である、重合体溶液。−ＣＯＯ−Ｍ−ＯＣＯ ・・・（４） −ＣＯＯ−Ｍ−Ｒ３２・・・（５）（式中、ＭはＺｎ、Ｃｕ、Ｍｇ又はＣａを示し、Ｒ３２は（メタ）アクリロイルオキシ基以外の有機酸残基を示す。）【選択図】なし