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    • 2. 发明授权
    • Purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidines
    • 纯化的2-芳基-3,3-双(羟基芳基)苯二甲酰亚胺
    • US07563817B2
    • 2009-07-21
    • US11300225
    • 2005-12-14
    • Balakrishnan GanesanPradeep Jeevaji NadkarniKumar Arun SatyanarayanaVenkata Rama Narayanan Ganapathy BhotlaSuresh ShanmugamGurram KishanRavindra Vikram Singh
    • Balakrishnan GanesanPradeep Jeevaji NadkarniKumar Arun SatyanarayanaVenkata Rama Narayanan Ganapathy BhotlaSuresh ShanmugamGurram KishanRavindra Vikram Singh
    • A61K31/405C07D209/34
    • C07D209/46C08G64/12
    • A method for purifying a 2-aryl-3,3-bis(hydroxyaryl)phthalimidine comprises contacting a crude 2-aryl-3,3-bis(hydroxyaryl)phthalimidine with a purification agent, removing a 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compound from the crude 2-aryl-3,3-bis(hydroxyaryl)phthalimidine, and producing a purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidine product comprising less than 200 parts per million of the 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compound. The purification agent is selected from the group consisting of an acidic material, an organic acid chloride, an organic anhydride, or a combination thereof. The 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compound has a formula: wherein each R1 is independently selected from a group consisting of a hydrocarbyl radical, a nitro radical, and a halogen atom; “a” is an integer from 0 to 4; and Ar1 and Ar2 are independently at each occurrence an aromatic radical. The purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidines have low color, and are useful for preparing polymers, such as polycarbonates having a low color. The polycarbonates are useful for producing articles.
    • 纯化2-芳基-3,3-双(羟基芳基)苯并二氮嘧啶的方法包括使粗2-二芳基-3,3-双(羟基芳基)苯并二氮吡啶与纯化剂接触,除去2-芳基-3-(氨基芳基 )-3-(羟基芳基)苯并二氮嘧啶化合物,并制备纯化的2-芳基-3,3-双(羟基芳基)苯并二氮嘧啶产物,其包含小于200份 百万的2-芳基-3-(氨基芳基)-3-(羟基芳基)苯并嘧啶化合物。 净化剂选自酸性物质,有机酰氯,有机酸酐或其组合。 2-芳基-3-(氨基芳基)-3-(羟基芳基)苯并二氮嘧啶化合物具有下式:其中每个R 1独立地选自烃基,硝基和卤素原子; “a”是从0到4的整数; Ar 1和Ar 2在每次出现时独立地为芳族基团。 纯化的2-芳基-3,3-双(羟基芳基)苯二甲酰亚胺具有低的颜色,并且可用于制备聚合物,例如具有低颜色的聚碳酸酯。 聚碳酸酯可用于制造制品。
    • 5. 发明授权
    • Methods for increasing the mean particle size of 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidines
    • 增加2-烃基-3,3-双(羟基芳基)苯二甲酰亚胺的平均粒度的方法
    • US07329720B2
    • 2008-02-12
    • US11288912
    • 2005-11-29
    • Balakrishnan GanesanPradeep Jeevaji Nadkarni
    • Balakrishnan GanesanPradeep Jeevaji Nadkarni
    • C08G63/12
    • C07D209/46
    • A method for increasing a mean particle size of a 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidine is provided. The method comprises forming a mixture comprising a feedstream of the 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, and a solvent composition comprising an organic solvent and water, wherein the organic solvent is capable of at least partially dissolving the 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidine and forming an adduct with the 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidine. Then the mixture is heated at a temperature and for a time effective to decompose the adduct and form a 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidine product having a mean particle size greater than 5 microns. The 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidines with increased particle size are useful for producing polymers.
    • 提供了增加2-烃基-3,3-双(羟基芳基)苯并吡嗪酮的平均粒度的方法。 该方法包括形成包含2-烃基-3,3-双(4-羟基芳基)苯并嘧啶的进料流和包含有机溶剂和水的溶剂组合物的混合物,其中有机溶剂能够至少部分地将 2-羟基芳基)苯并二氮吡啶,并与2-烃基-3,3-双(羟基芳基)苯并二氮吡啶形成加合物。 然后将混合物在有效分解加合物的温度下加热并形成平均粒度大于5微米的2-烃基-3,3-双(羟基芳基)苯并二氮嘧啶产物。 粒径增加的2-烃基-3,3-双(羟基芳基)苯二甲酰亚胺可用于生产聚合物。