AQUEOUS METAL SURFACE TREATMENT AGENT AND METALLIC MATERIAL WITH COATING AND METHOD OF MANUFACTURING THE SAME

• Main Authors: INOKO TOMOHIRO, KUDO EISUKE, NAKAMURA SHOHEI
• Format: Patent
• Language: English; Japanese
• Published: 29.11.2018
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DYES; FILLING PASTES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide an aqueous metal surface treatment agent etc., capable of forming a coating superior in corrosion resistance, chemical resistance, film adhesion, and abrasion resistance, on a metallic material.SOLUTION: A coating can be formed on a metallic material by using an aqueous metal surface treatment agent which contains an urethane resin (A) and a silane compound (B), the urethane resin (A) including a specific polyisocyanate-derived structure unit having a cyclohexane ring structure, a specific polyol-derived structure unit, a specific diol-derived structure unit of larger than 600 in weight average molecular weight, a specific diol-derived structure unit of 500 or less in weight average molecular weight, and a specific tertiary amine compound and/or its salt-derived structure unit.SELECTED DRAWING: None 【課題】金属材料に耐食性、耐薬品性、塗膜密着性及び耐摩耗性に優れた皮膜を形成することができる水系金属表面処理剤等を提供する。【解決手段】ウレタン樹脂（Ａ）と、シラン化合物（Ｂ）とを含有し、前記ウレタン樹脂（Ａ）は、シクロヘキサン環構造を有する特定のポリイソシアネート由来の構造単位、特定のポリオール由来の構造単位、重量平均分子量が６００超の特定のジオール由来の構造単位、重量平均分子量が５００以下の特定のジオール由来の構造単位、並びに特定の第３級アミン化合物及び／又はその塩由来の構造単位、を含む、水系金属表面処理剤を用いることによって金属材料に上記皮膜を形成することができる。【選択図】なし