POLYISOCYANATE COMPOSITION, DILUTION SOLUTION OF POLYISOCYANATE COMPOSITION, COATING COMPOSITION AND COATING FILM

• Main Authors: YAMAUCHI MICHIKAZU, FUKUCHI TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 31.01.2019
• 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 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; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide a polyisocyanate composition that has excellent storage stability at high temperature and low temperature when diluted with a solvent, and gives a coating film having excellent water resistance.SOLUTION: A polyisocyanate composition has: a polyisocyanate obtained from at least one diisocyanate selected from the group consisting of an aliphatic diisocyanate containing 1,6-diisocyanatohexane and an alicyclic diisocyanate containing isophorone diisocyanate, and one or more triisocyanate represented by general formula (I). A mass ratio of the polyisocyanate to the triisocyanate is 100/5.0 or more and 100/0.01 or less.SELECTED DRAWING: None 【課題】溶剤で希釈した場合の高温時及び低温時での貯蔵安定性に優れ、且つ、耐水性に優れた塗膜が得られるポリイソシアネート組成物を提供する。【解決手段】ポリイソシアネート組成物は、１，６−ジイソシアナトヘキサンを含む脂肪族ジイソシアネート、及び、イソホロンジイソシアネートを含む脂環族ジイソシアネートからなる群より選択される１種以上のジイソシアネートから得られるポリイソシアネートと、１種類以上の下記一般式（Ｉ）で示されるトリイソシアネートと、を含み、前記トリイソシアネートに対する前記ポリイソシアネートの質量比が１００／５．０以上１００／０．０１以下である。［化１］・・・（Ｉ）【選択図】なし