Processes for preparing 2-substituted propionic acid and derivatives
thereof
    2.
    发明授权
    Processes for preparing 2-substituted propionic acid and derivatives thereof 失效
    制备2-取代的丙酸及其衍生物的方法

    公开(公告)号:US4922010A

    公开(公告)日:1990-05-01

    申请号:US282024

    申请日:1988-12-07

    摘要: There are disclosed a process for preparing 2-hydroxy-2-(6-methoxy-2-naphthyl)propionic acid or 2-hydroxy-(4-substituted phenyl)propionic acid derivative which comprises reacting 2-methoxynaphthalene or substituted benzene derivatives with pyruvic acid in the presence of a Lewis acid and then, if necessary, hydrolyzing the obtained product, and a process for preparing 2-(6-methoxy-2-naphthyl)propionic acid or 2-(4-substituted phenyl)propionic acid derivative which comprises reducing 2-hydroxy-2-(6-methoxy-2-naphthyl)propionic acid or 2-hydroxy-2-(4-substituted phenyl)propionic acid derivative in a lower aliphatic acid in the presence of an inorganic acid under hydrogen atmosphere by using a metal catalyst.

    摘要翻译: 公开了2-羟基-2-(6-甲氧基-2-萘基)丙酸或2-羟基 - (4-取代苯基)丙酸衍生物的制备方法,该方法包括使2-甲氧基萘或取代的苯衍生物与丙酮酸反应 在路易斯酸存在下,然后如果需要,水解所得产物,以及制备2-(6-甲氧基-2-萘基)丙酸或2-(4-取代苯基)丙酸衍生物的方法,其中 包括在氢气氛下在无机酸存在下,在低级脂肪酸中还原2-羟基-2-(6-甲氧基-2-萘基)丙酸或2-羟基-2-(4-取代苯基)丙酸衍生物 通过使用金属催化剂。

    Crystalline polyesterpolyol and hot-melt adhesive
    3.
    发明授权
    Crystalline polyesterpolyol and hot-melt adhesive 失效
    结晶聚酯多元醇和热熔胶

    公开(公告)号:US06630561B2

    公开(公告)日:2003-10-07

    申请号:US09838036

    申请日:2001-04-19

    IPC分类号: C09J17506

    摘要: A crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol, and a hot-melt adhesive comprising a reaction product of a polyisocyanate and a polyesterpolyol, which contains a crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol are provided.

    摘要翻译: 数均分子量为1500〜15000的结晶性聚酯多元醇,可由多元羧酸成分和含有1,10-癸二醇和/或1,12-十二烷二醇的脂肪族二醇成分得到,以及含有 多异氰酸酯和聚酯多元醇的反应产物,其含有数均分子量为1,500至15,000的结晶聚酯多元醇,并且可由多元羧酸组分和包含1,10-癸二醇和/或12,12-癸二醇的脂族烃二醇组分获得 提供了十二烷二醇。

    Cyanurate compound having three oxetane ring groups and organic hardening compositions containing same
    4.
    发明授权
    Cyanurate compound having three oxetane ring groups and organic hardening compositions containing same 失效
    具有三个氧杂环丁烷环基的氰尿酸酯化合物和含有它们的有机硬化组合物

    公开(公告)号:US06255484B1

    公开(公告)日:2001-07-03

    申请号:US09672153

    申请日:2000-09-27

    IPC分类号: C07D25130

    CPC分类号: C07D405/14

    摘要: A cyanurate compound having three oxetane ring groups and represented by the general formula (1): wherein R1 represents a member selected from the group consisting of a hydrogen atom and alkyl groups having 1 to 6 carbon atoms, is useful as a photosetting monomer or thermosetting monomer, and thus is used, together with a hardening agent, for example, a polycarboxylic anhydride and a catalyst, for example, an amine, a carboxylic acid metal salt or a protonic acid, to provide an organic hardening composition usable for producing electronic materials, for example, resists.

    摘要翻译: 具有三个氧杂环丁烷环基并由通式(1)表示的氰尿酸酯化合物:其中R 1表示选自氢原子和具有1至6个碳原子的烷基的成员,可用作光固化单体或热固性 单体,因此与硬化剂,例如多元羧酸酐和催化剂,例如胺,羧酸金属盐或质子酸一起使用,以提供可用于生产电子材料的有机硬化组合物 例如,抗拒。