Preparation of aromatic carbonates
    1.
    发明授权
    Preparation of aromatic carbonates 失效
    芳香族碳酸酯的制备

    公开(公告)号:US4973728A

    公开(公告)日:1990-11-27

    申请号:US084358

    申请日:1987-08-12

    IPC分类号: C07C68/06

    CPC分类号: C07C68/06 C07C68/005

    摘要: Aromatic carbonates useful for the preparation of high molecular weight polycarbonate resins are prepared by reacting methanol, carbon monoxide and oxygen to prepare dimethyl carbonate; reacting a methyl silyl ether with a phenol or bisphenol to prepare an aryl silyl ether, and reacting the dimethyl carbonate and aryl silyl ether to prepare an aromatic carbonate.

    摘要翻译: 用于制备高分子量聚碳酸酯树脂的芳族碳酸酯通过使甲醇,一氧化碳和氧气反应制备碳酸二甲酯; 使甲基甲硅烷基醚与苯酚或双酚反应制备芳基甲硅烷基醚,并使碳酸二甲酯和芳基甲硅烷基醚反应制备芳族碳酸酯。

    Method for the preparation of amide oligomers and polybenzazole polymers
therefrom
    5.
    发明授权
    Method for the preparation of amide oligomers and polybenzazole polymers therefrom 失效
    用于制备酰胺低聚物和聚吲哚聚合物的方法

    公开(公告)号:US5534614A

    公开(公告)日:1996-07-09

    申请号:US218475

    申请日:1994-03-28

    CPC分类号: C08G73/22 C08G69/26

    摘要: A polyamide precursor of a polybenzazole polymer is prepared by reacting an aromatic bis(alkenyl)ester with a ring forming, aromatic diamine. The precursor can be prepared in an organic solvent for the monomers to form a soluble polyamide precursor which can be subsequently cyclocondensed to form a PBX polymer. A polybenzoxazole precursor is prepared by the reaction of a bis(alkenyl)ester and a bis(ortho-hydroxyamine). A polybenzazole polymer is easily prepared by heating the polyamide, PBX precursor.

    摘要翻译: 通过使芳族双(烯基)酯与形成环的芳族二胺反应来制备聚吲哚聚合物的聚酰胺前体。 该前体可以在有机溶剂中制备用于单体以形成可溶性聚酰胺前体,其可随后环化以形成PBX聚合物。 聚苯并恶唑前体通过双(烯基)酯和双(邻羟基胺)的反应制备。 通过加热聚酰胺,PBX前体,容易制备聚吲哚聚合物。

    Preparation of poly(arylether/thioether) segmented block copolymers
    6.
    发明授权
    Preparation of poly(arylether/thioether) segmented block copolymers 失效
    聚(芳基醚/硫醚)嵌段共聚物的制备

    公开(公告)号:US5284921A

    公开(公告)日:1994-02-08

    申请号:US970523

    申请日:1992-11-02

    IPC分类号: C08G81/00 C08L71/12 C08L81/02

    CPC分类号: C08G81/00

    摘要: Block copolymers comprising activated aromatic ether or thioether repeat units having utility as molding resins are prepared by contacting polymers comprising different activated aromatic ether or thioether repeat units in the presence of an exchange catalyst.

    摘要翻译: 通过在交换催化剂存在下使包含不同活化芳族醚或硫醚重复单元的聚合物接触,制备包含活性芳族醚或硫醚重复单元作为模塑树脂的嵌段共聚物。

    Epoxy resins from hydroxy benzamides
    8.
    发明授权
    Epoxy resins from hydroxy benzamides 失效
    来自羟基苯甲酰胺的环氧树脂

    公开(公告)号:US4673765A

    公开(公告)日:1987-06-16

    申请号:US377660

    申请日:1982-05-13

    摘要: New epoxy resins are prepared by reacting a hydroxybenzamide or derivative thereof with an epihalohydrin followed by dehydrohalogenation. These epoxy resins have crystalline melting points, self-cure at elevated temperatures and cure rapidly in the presence of the usual epoxy resin curing agents. Also disclosed are hydrolyzed products of these epoxy resins and subsequent reactions with polyisocyanates.

    摘要翻译: 通过使羟基苯甲酰胺或其衍生物与表卤代醇反应,然后脱卤化氢来制备新的环氧树脂。 这些环氧树脂具有结晶熔点,在升高的温度下自固化并在通常的环氧树脂固化剂存在下快速固化。 还公开了这些环氧树脂的水解产物和随后与多异氰酸酯的反应。

    Allylation of carbon acids
    9.
    发明授权
    Allylation of carbon acids 失效
    碳酸的烯丙基化

    公开(公告)号:US4567005A

    公开(公告)日:1986-01-28

    申请号:US487481

    申请日:1983-04-22

    申请人: Edmund P. Woo

    发明人: Edmund P. Woo

    IPC分类号: C07C49/203 C07C121/70

    CPC分类号: C07C255/00

    摘要: Carbon acids are allylated by contacting with an allyl carbonate in the presence of an iron, cobalt, nickel, ruthenium, rhodium, osmium, iridium or platinum catalyst.

    摘要翻译: 通过在铁,钴,镍,钌,铑,锇,铱或铂催化剂的存在下与碳酸烯丙酯接触来将碳酸烯丙基化。