Poly(arylene ether ketones)
    4.
    发明授权
    Poly(arylene ether ketones) 失效
    聚(亚芳基醚酮)

    公开(公告)号:US4990589A

    公开(公告)日:1991-02-05

    申请号:US266416

    申请日:1988-11-03

    IPC分类号: C08G65/40 C08G61/12 C08G67/00

    CPC分类号: C08G61/127

    摘要: Partially crystalline polyaryletherketones having improved glass transition temperature without unacceptably high melting temperature are produced by incorporating multi-ring aryl moieties (e.g. terphenyls of naphthyls) in the polymer backbone and mono-substituting those or other moieties in the backbone, or arranging the aryl multi-ring groups asymmetrically so as to kink the backbone.

    Polyester containing residues of a
1-hydroxy-3-6-bis(hydroxyalkoxy)xanth-9-one, process for preparing same
and shaped articles thereof
    7.
    发明授权
    Polyester containing residues of a 1-hydroxy-3-6-bis(hydroxyalkoxy)xanth-9-one, process for preparing same and shaped articles thereof 失效
    含有1-羟基-3,6-双(羟基烷氧基)黄嘌呤-9-酮的残基的聚酯,其制备方法和成型制品

    公开(公告)号:US4456746A

    公开(公告)日:1984-06-26

    申请号:US424294

    申请日:1982-09-27

    申请人: Patrick J. Horner

    发明人: Patrick J. Horner

    CPC分类号: C08G63/672

    摘要: A new linear polyester contains in its chain the residues of a hydroxy-bis(hydroxyalkoxy)xanth-9-one e.g. polyethylene terephthalate containing such residues which act as a UV stabilizer. Processes for the preparation of the polymers include the reaction of a dibasic acid, glycol and 1,3,6-trihydroxyxanthone whereby only two of the xanthone hydroxyl groups take part in the polyester-forming reaction.

    摘要翻译: 新的线性聚酯在其链中含有羟基 - 双(羟基烷氧基)黄素-9-酮的残基。 含有这种残留物的聚对苯二甲酸乙二醇酯作为UV稳定剂。 用于制备聚合物的方法包括二元酸,二醇和1,3,6-三羟基呫吨酮的反应,其中只有两个呫吨酮羟基参与聚酯形成反应。

    Preparation of poly(arylene ether ketones) by sequential oligomerization
and polymerization in distinct reaction zones
    8.
    发明授权
    Preparation of poly(arylene ether ketones) by sequential oligomerization and polymerization in distinct reaction zones 失效
    通过在不同反应区中顺序低聚和聚合制备聚(亚芳基醚酮)

    公开(公告)号:US4843131A

    公开(公告)日:1989-06-27

    申请号:US110899

    申请日:1987-10-20

    IPC分类号: C08G61/12

    CPC分类号: C08G61/127

    摘要: A method of preparing a poly(arylene ether ketone) by a Friedel-Crafts polymerization wherein a gelled reaction mixture is produced, comprising the steps of:(A) forming, in a first reactor, a reaction mixture for polymerization comprising(I) a monomer system comprising(a) (i) phosgene or an aromatic dicarboxylic acid dihalide and (ii) a substantially stoichiometric amount of a polynuclear aromatic comonomer having two active hydrogen atoms or(b) a polynuclear aromatic carboxylic acid halide having an active hydrogen atom; and(II) a Lewis acid in an amount of at least one equivalent per equivalent of carbonyl groups in the monomer system, plus an amount effective to act as a catalyst for the polymerization;(B) permitting the reaction mixture to polymerize in the first reactor until substantial partial polymerization has occurred, but before substantial gelation of the reaction mixture;(C) transferring the partially polymerized reaction mixture into a second reactor having a nozzle at one end thereof and a piston which, in its retracted position, is at the other end of the second reactor and has a stroke substantially equal to the length of the second reactor;(D) permitting polymerization to continue in the second reactor until a gelled, polymerized reaction mixture containing polymer of the desired molecular weight has been obtained;(E) discharging the gelled, polymerized reaction mixture from the second reactor through the nozzle by stroking the piston the length of the second reactor; and(F) recovering and purifying the polymer.

    摘要翻译: 一种通过Friedel-Crafts聚合制备聚(亚芳基醚酮)的方法,其中制备凝胶化反应混合物,其包括以下步骤:(A)在第一反应器中形成聚合反应混合物,其包含(I) 单体体系,其包含(a)(i)光气或芳族二羧酸二卤化物,和(ii)基本上化学计量的具有两个活性氢原子的多核芳族共聚单体或(b)具有活性氢原子的多核芳族羧酸卤化物; 和(II)在单体体系中每当量羰基至少一当量的路易斯酸加上有效用作聚合催化剂的量; (B)允许反应混合物在第一反应器中聚合直至发生基本上部分聚合,但在反应混合物实质凝胶化之前; (C)将部分聚合的反应混合物转移到在其一端具有喷嘴的第二反应器和在其缩回位置处于第二反应器的另一端的活塞,其活塞基本上等于 第二反应堆; (D)允许在第二反应器中继续进行聚合,直至获得含有所需分子量聚合物的凝胶化聚合反应混合物; (E)通过将活塞的第二反应器的长度移动,将来自第二反应器的凝胶化聚合反应混合物通过喷嘴排出; 和(F)回收和纯化聚合物。

    Friedel-crafts preparation of aromatic ketones with an inoganic salt
controlling agent
    10.
    发明授权
    Friedel-crafts preparation of aromatic ketones with an inoganic salt controlling agent 失效
    弗里德尔工艺制备芳香酮与无机盐控制剂

    公开(公告)号:US5068447A

    公开(公告)日:1991-11-26

    申请号:US550246

    申请日:1990-07-06

    摘要: Aromatic carbonyl compounds, in particular arylene ether ketones, are prepared by reacting an appropriate reagent system in the presence of free Lewis acid and a complex between a Lewis acid, for example, aluminum trichloride, and an inorganic salt controlling agent, for example, lithium chloride, and, optionally, a diluent, such as methylene chloride. The process is particularly advantageous for the preparation of substantially or all para-linked arylene ether ketones as the presence of the Lewis acid/Lewis base complex markedly reduces alkylation and ensures the substantial absence of ortho substitution.

    摘要翻译: 芳族羰基化合物,特别是亚芳基醚酮,通过在游离路易斯酸和路易斯酸例如三氯化铝与无机盐控制剂例如锂之间的络合物存在下使适当的试剂体系反应来制备 氯化物和任选的稀释剂,例如二氯甲烷。 该方法对于制备基本上或全部对联的亚芳基醚酮是特别有利的,因为路易斯酸/路易斯碱配合物的存在显着降低烷基化并确保基本上不存在邻位取代。