Epoxy adhesives
    3.
    发明公开
    Epoxy adhesives 失效
    Epoxydharzklebstoffe。

    公开(公告)号:EP0572176A1

    公开(公告)日:1993-12-01

    申请号:EP93303924.0

    申请日:1993-05-20

    CPC classification number: C08G65/3255 C08G65/2609 C08L63/00 C08L2666/22

    Abstract: Curable epoxy resins comprising

    A. An epoxy resin component comprising a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule; and
    B. A curative component comprising a polyamine curing agent

    exhibit high lap shear strength and peel strength when the curative component also includes 2 to 30 % by weight, based on vicinal polyepoxide of a hindered polyetherpolyamine adhesion enhancer obtainable by reacting a polyol having two or more hydroxyl groups with an effective amount of a long chain alkyl epoxide to give an at least partially hindered intermediate having hydroxyl terminations; and
       aminating at least one of the hydroxyl terminations on the intermediate to primary amino groups.
    Preferably the hindered polyetherpolyamine has the structure:

    or

    wherein R is a central moiety from a polyol; at least one R' is a straight or branched alkyl group having at least 10 carbon atoms, the balance being hydrogen, methyl or ethyl; R'' is hydrogen or an alkyl group having 1 or 2 carbon atoms; x is 2 or more and y is 20 to 80.

    Abstract translation: 包括A.包含环氧树脂组分的环氧树脂组分,其包含每分子平均具有至少1.8个反应性1,2-环氧基团的连位聚环氧化物; 包含多胺固化剂的固化剂组分显示出高搭接剪切强度和剥离强度,当固化组分还包含2-30重量%时,基于受阻聚醚多胺粘附增强剂的连位聚环氧化物,其通过使具有两个或多个 更多的羟基与有效量的长链烷基环氧化物反应得到具有羟基末端的至少部分受阻的中间体; 并胺化中间体至伯氨基上的至少一个羟基端基。 优选地,受阻聚醚多胺具有以下结构:其中R是来自多元醇的中心部分的 至少一个R'是具有至少10个碳原子的直链或支链烷基,余量是氢,甲基或乙基; R“是氢或具有1或2个碳原子的烷基; x为2以上且y为20〜80。

    Bisphenol a production using acid modified clay catalysts
    5.
    发明公开
    Bisphenol a production using acid modified clay catalysts 失效
    Herstellung von Bisphenol A durch Verwendungen vonsäuremodifiziertenTonkatalysatoren。

    公开(公告)号:EP0566798A1

    公开(公告)日:1993-10-27

    申请号:EP92308394.3

    申请日:1992-09-15

    Abstract: Bisphenol A can be synthesized by reacting phenol with acetone in the presence of a catalyst, comprising a montmorillonite clay having the structure:



            M x/n n+ yH₂O(Al 4-x Mg x )(Si₈)O₂₀(OH)₄



    where M represents the interlamellar cation, and x, y and n are numbers, which has been rendered acidic by pretreatment with one or more acids selected from hydrogen fluoride, fluorosulphonic acids or anhydrides, and mineral acids. The reaction is carried out at a temperature of from 20 to 200°C and a pressure of 0.1 to 7.0 MPa.

    Abstract translation: 双酚A可以通过苯酚与丙酮在催化剂存在下反应来合成,包括具有以下结构的蒙脱土粘土:Mx / n yH2O(Al4-xMgx)(Si8)O20(OH)4,其中M代表层间 阳离子,x,y和n是通过用一种或多种选自氟化氢,氟磺酸或酸酐的酸和无机酸预处理而呈酸性的数字。 反应在20〜200℃的温度和0.1〜7.0MPa的压力下进行。

    Purification of methyl tertiary-butyl ether
    10.
    发明公开
    Purification of methyl tertiary-butyl ether 失效
    Reinigung von甲基叔丁基醚。

    公开(公告)号:EP0535918A1

    公开(公告)日:1993-04-07

    申请号:EP92308886.8

    申请日:1992-09-30

    CPC classification number: C07C41/42 C07C41/09 C07C43/046

    Abstract: A method for the separation of methanol from MTBE contained in a reaction mixture comprising water, methanol, TBA and MTBE which comprises distilling the reaction mixture in the presence of added water in order to provide a distillate fraction containing most of the MTBE and a heavier distillation fraction containing most of the tertiary-butanol, water and methanol charged to the distillation column.

    Abstract translation: 一种用于从包含水,甲醇,TBA和MTBE的反应混合物中分离甲醇的甲醇的方法,其包括在加入的水的存在下蒸馏反应混合物,以提供含有大部分MTBE和较重蒸馏的馏出物馏分 含有大部分叔丁醇,水和甲醇的馏分装入蒸馏塔。

Patent Agency Ranking