POLYESTER RESIN AND METHOD FOR PRODUCING THEREOF, AND TONER

• Main Authors: KANEKO ASAKO, TAMURA YOKO, OZAWA TADAHIRO, KONDO AKISHI
• Format: Patent
• Language: English; Japanese
• Published: 07.10.2021
• Subjects: CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAGNETOGRAPHY; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PHOTOGRAPHY; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a polyester resin having good wax dispersibility and a method for producing the polyester resin.SOLUTION: There is provided a polyester resin including: a constitutional part (A1) derived from an aliphatic hydrocarbon-based modifier (modifier A) having a melting point of 90°C or higher and having a functional group capable of reacting with an acid or an alcohol; and a constitutional part (B1) derived from an aliphatic hydrocarbon-based modifier (modifier B) having a melting point of 90°C or lower and having a functional group capable of reacting with an acid or an alcohol, wherein a mass ratio of the constitutional part (A1) to the constitutional part (B1) is in a range of 1:2 to 1:12.SELECTED DRAWING: None 【課題】 ワックス分散性が良好なポリエステル樹脂、およびポリエステル樹脂の製造方法の提供。【解決手段】 融点が９０℃以上で、酸またはアルコールと反応可能な官能基を有する脂肪族炭化水素系改質材（改質材Ａ）に由来する構成部位（Ａ１）、および融点が９０℃未満で、酸またはアルコールと反応可能な官能基を有する脂肪族炭化水素系改質材（改質材Ｂ）に由来する構成部位（Ｂ１）とを有し、構成部位（Ａ１）と構成部位（Ｂ１）の質量の比が１：２〜１２の範囲である、ポリエステル樹脂。【選択図】 なし