Diimonium compounds and their uses
JP7878850B2Active Publication Date: 2026-06-23株式会社カーリット
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- 株式会社カーリット
- Filing Date
- 2022-12-22
- Publication Date
- 2026-06-23
AI Technical Summary
Benefits of technology
【0024】 本発明のジイモニウム化合物は、近赤外線吸収色素として耐熱性に優れ、長期間にわたって近赤外線吸収能力が低下することなく、かつ、樹脂基材との分散·加工性に優れ、広範囲の近赤外線吸収能を有するという特徴がある。また化合物自体が重金属を含有しないので環境に対する問題が極めて少ない。
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Abstract
To provide a diimmonium compound having high heat resistance and a resin composition containing the same, and a near-infrared cut filter which is manufactured using the same and has a wide range of near-infrared absorption ability and high heat resistance.SOLUTION: There are provided a diimmonium compound salt that is composed of one diimmonium compound cation and two counter anions, wherein a cyclohexylmethyl group or a cyclohexylethyl group is contained in a terminal group of a cationic part, and a tetrakis phenylboron compound that is substituted with fluorine or cyclic disulfonylimide anion is contained therein as the counter anion; a resin composition obtained using the same; and a near-infrared cut filter.SELECTED DRAWING: None
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Claims
1. A diimonium compound represented by the following formula (1). 【Chemistry 1】 (In chemical formula (1), R １ ~R ８ (This indicates a cyclohexylmethyl group or a cyclohexylethyl group.)
2. A resin composition characterized by containing the diimonium compound described in claim 1.
3. The resin composition according to claim 2, further containing polycarbonate.
4. A near-infrared cut filter characterized by comprising at least a resin layer containing the diimonium compound described in claim 1.
5. The diimonium compound according to claim 1, wherein the melting point is 250°C or higher.