Synthesis of sterically hindered phenol based macromolecular antioxidants
    4.
    发明申请
    Synthesis of sterically hindered phenol based macromolecular antioxidants 审中-公开
    空间位阻酚基大分子抗氧化剂的合成

    公开(公告)号:US20060128930A1

    公开(公告)日:2006-06-15

    申请号:US11293050

    申请日:2005-12-02

    IPC分类号: C08G61/02 C08G65/40

    摘要: Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes polymerizing and alkylating a phenol containing monomer represented by the following structural formula: to produce a sterically hindered polymeric macromolecular antioxidant. X, R10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

    摘要翻译: 公开了一种基于苯酚型抗氧化剂单体合成空间位阻聚合物抗氧化剂的方法。 所述方法包括使由以下结构式表示的含苯酚单体聚合和烷基化:产生空间位阻聚合物大分子抗氧化剂。 X,R 10和q如本文所定义。 所公开的方法是用于合成空间位阻聚合物大分子抗氧化剂的简单,直接和经济的方法。

    Polymeric antioxidants
    7.
    发明授权
    Polymeric antioxidants 失效
    聚合物抗氧化剂

    公开(公告)号:US07595074B2

    公开(公告)日:2009-09-29

    申请号:US10761933

    申请日:2004-01-21

    IPC分类号: A23D7/00

    摘要: A method of preparing a phenolic polymer comprising: a) protecting at least one hydroxyl group of a substituted or unsubstituted phenol represented by Structural Formula (XXIX), wherein: R11, R12, R13, R14 and R15 are independently —H, —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, a substituted or unsubstituted alkoxycarbonyl or aryloxycarbonyl group, a substituted or unsubstituted alkoxy group or a saturated or unsaturated carboxylic acid group; or R11, R12, R13, R14 or R15, in conjunction with an adjacent R11, R12, R13, R14 or R15, forms a substituted or unsubstituted alkylene dioxy group; provided that at least one of R11, R12, R13, R14 or R15 is a tert-butyl group 1-ethenyl-2-carboxylic acid or ester thereof, a substituted or unsubstituted alkylene dioxy group or a substituted or unsubstituted n-alkoxycarbonyl group, at least one of R11, R12, R13, R14 or R15 is a hydroxyl group, and at least one of R11, R12, R13, R14 and R15 is —H; with a protecting group, wherein thereby obtaining one or more protected hydroxyl groups; and b) polymerizing the substituted or unsubstituted phenol, thereby obtaining the phenolic polymer.

    摘要翻译: 一种制备酚醛聚合物的方法,包括:a)保护由结构式(XXIX)表示的取代或未取代的酚的至少一个羟基,其中:R 11,R 12,R 13,R 14和R 15独立地为-H,-OH, -NH,-SH,取代或未取代的烷基或芳基,取代或未取代的烷氧基羰基或芳氧基羰基,取代或未取代的烷氧基或饱和或不饱和羧酸基团; 或R11,R12,R13,R14或R15与相邻的R11,R12,R13,R14或R15结合形成取代或未取代的亚烷基二氧基; 条件是R11,R12,R13,R14或R15中的至少一个是叔丁基1-乙烯基-2-羧酸或其酯,取代或未取代的亚烷基二氧基或取代或未取代的正烷氧基羰基, R 11,R 12,R 13,R 14或R 15中的至少一个为羟基,R 11,R 12,R 13,R 14和R 15中的至少一个为-H; 与保护基,其中由此获得一个或多个被保护的羟基; 和b)使取代或未取代的苯酚聚合,由此得到酚类聚合物。