Fluoropolyether group-containing polymer, surface treatment agent, and article

• Main Authors: YAMANE YUJI, SAKOH RYUSUKE
• Format: Patent
• Language: Chinese; English
• Published: 18.03.2022
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

A surface treatment agent comprising a fluoropolyether group-containing polymer having a hydroxyl group-containing silyl group or a hydrolyzable silyl group represented by general formula (1) and/or a partial (hydrolysis) condensate thereof can form a cured coating film having excellent water and oil repellency, excellent steel wool wear resistance, and a small water roll angle. Rf-[CH (V) 2] alpha (1) (In the formula, Rf is a monovalent or divalent fluorooxyalkylene group-containing polymer residue, V is independently a monovalent group having a hydroxyl group-containing silyl group or a hydrolyzable silyl group at the terminal, and there is no polar group excluding the hydroxyl group-containing silyl group or hydrolyzable silyl group. And alpha represents 1 or 2). 包含由下述通式(1)表示的具有含有羟基的甲硅烷基或水解性甲硅烷基的含有氟聚醚基的聚合物和/或其部分(水解)缩合物的表面处理剂可形成拒水拒油性、耐钢丝绒磨损性优异并且水滚落角小的固化被膜。Rf-[CH(V)2]α (1),(式中，Rf为1价或2价的含有氟代氧亚烷基的聚合物残基，V独立地为在末端具有含有羟基的甲硅烷基或水解性甲硅烷基的1价的基团，除该含有羟基的甲硅烷基或水解性甲硅烷基以外不具有极性基团。α为1或2)。