Latent catalysts, epoxy compositions incorporating same, and coating,
impregnating and bonding methods employing the compositions
    12.
    发明授权
    Latent catalysts, epoxy compositions incorporating same, and coating, impregnating and bonding methods employing the compositions 失效
    潜在催化剂,包含其的环氧组合物,以及使用该组合物的涂布,浸渍和粘合方法

    公开(公告)号:US5169473A

    公开(公告)日:1992-12-08

    申请号:US526488

    申请日:1990-05-21

    IPC分类号: C08G59/18 C08G59/40

    CPC分类号: C08G59/40 C08G59/18

    摘要: Products resulting from contacting (1) at least one compound selected from the group consisting of (a) at least one onium compound of the element nitrogen, phosphorus, sulfur or arsenic; (b) at least one amine compound; and (c) a mixture of any two or more of the (a) and (b) components; with (2) either (a) boric acid or (b) a mixture of boric acid and at least one acid having a weak nucleophilic anion are suitable catalysts for reacting vicinal epoxy-containing compounds with aromatic hydroxyl-containing compounds.

    摘要翻译: 产生的产物(1)至少一种选自(a)至少一种元素氮,磷,硫或砷的鎓化合物的化合物的化合物; (b)至少一种胺化合物; 和(c)(a)和(b)组分中的任何两种或更多种的混合物; 与(2)(a)硼酸或(b)硼酸和至少一种具有弱亲核阴离子的酸的混合物是使含邻位环氧基的化合物与芳族含羟基化合物反应的合适的催化剂。

    Epoxy resin compositions
    15.
    发明授权
    Epoxy resin compositions 失效
    环氧树脂组合物

    公开(公告)号:US4482692A

    公开(公告)日:1984-11-13

    申请号:US544671

    申请日:1983-10-24

    摘要: Epoxy resin compositions are disclosed which are the reaction products resulting from reacting (A) the reaction product of a cyanuric halide and at least one dihydric or polyhydric phenol with (B) at least one dihydric or polyhydric phenol and (C) at least one epoxy resin having an average of more than one epoxy group per molecule. These epoxy resin compositions are suitable for use as electrical laminates, structural laminates, coatings, castings, electrical encapsulation and the like.

    摘要翻译: 公开了环氧树脂组合物,其是由(A)氰尿酰卤和至少一种二羟基或多元酚与(B)至少一种二元或多元酚的反应产物(A)和(C)至少一种环氧 每分子平均具有多于一个环氧基团的树脂。 这些环氧树脂组合物适用于电气层压板,结构层压板,涂层,铸件,电气封装等。

    Curable composition which comprises adducts of heterocyclic compounds
    16.
    发明授权
    Curable composition which comprises adducts of heterocyclic compounds 失效
    包含杂环化合物的加合物的固化组合物

    公开(公告)号:US5503937A

    公开(公告)日:1996-04-02

    申请号:US192465

    申请日:1994-02-07

    摘要: A curable composition which comprises:(1) a compound which contains on average more than 1 epoxy group per molecule;(2) a compound which contains on average more than 1 phenolic hydroxyl group per molecule; and(3) a catalytic amount of a catalyst compound which contains:(a) a cation containing at least one heterocyclic nitrogen-containing ring, and(b) an anion which is a conjugate base of fluoroarsenic acid, fluoroantimonic acid, fluorophosphoric acid, chloroarsenic acid, chloroantimonic acid, chlorophosphoric acid, nitric acid, hydrofluoric acid, trifluoroacetic acid, trifluoromethane sulfonic acid, picric acid, fluoboric acid, or an acid represented by the Formula:HBR.sub.3 R' wherein each R is independently a hydrocarbyl or substituted hydrocarbyl group and R' is a halogen, a hydrocarbonoxy group, a hydrocarbonamino group, or a hydrocarbonphosphino group.

    摘要翻译: 一种可固化组合物,其包含:(1)每分子平均含有多于1个环氧基的化合物; (2)每分子含有平均多于1个酚羟基的化合物; 和(3)催化量的催化剂化合物,其含有:(a)含有至少一个杂环含氮环的阳离子,和(b)作为氟代酸的共轭碱的阴离子,氟代丙二酸,氟代磷酸, 氯磺酸,氯代丙二酸,氯代磷酸,硝酸,氢氟酸,三氟乙酸,三氟甲磺酸,苦味酸,氟硼酸或由式HBR 3 R'表示的酸,其中每个R独立地为烃基或取代的烃基, R'是卤素,烃氧基,烃氨基或烃基膦基。

    Triazine containing epoxy resins having improved thermal stability
    19.
    发明授权
    Triazine containing epoxy resins having improved thermal stability 失效
    具有改善的热稳定性的含有三嗪的环氧树脂

    公开(公告)号:US4665149A

    公开(公告)日:1987-05-12

    申请号:US796368

    申请日:1985-11-08

    IPC分类号: C08G59/06 C08G59/32

    CPC分类号: C08G59/3245 C08G59/063

    摘要: The thermal stability of epoxy resins prepared by dehydrohalogenating the reaction product of an epihalohydrin with an adduct prepared from a cyanuric halide and a polyhydric aromatic compound is improved by employing as the polyhydric aromatic compound one which is substituted with a hydrocarbyl group, a halogen atom or a nitro group at each ortho position relative to each aromatic hydroxyl group. These epoxy resins are useful in coating and molding compositions and in the preparation of laminates and composites.

    摘要翻译: 通过使用由烃基,卤素原子或卤素原子取代的多元芳香族化合物,改善了由表卤代醇与由氰尿酰卤和多元芳香族化合物制备的加成物的反应产物脱卤化氢制备的环氧树脂的热稳定性, 在每个邻位相对于每个芳族羟基的硝基。 这些环氧树脂可用于涂料和模塑组合物以及制备层压材料和复合材料。

    Method for fractioning poly (ethylene oxide) formed using a metallic cyanide catalyst
    20.
    发明授权
    Method for fractioning poly (ethylene oxide) formed using a metallic cyanide catalyst 有权
    使用金属氰化物催化剂分离聚(环氧乙烷)的方法

    公开(公告)号:US06552163B1

    公开(公告)日:2003-04-22

    申请号:US09611497

    申请日:2000-07-07

    IPC分类号: C08G5968

    摘要: A poly(ethylene oxide) polymer having low and high molecular weight fractions is fractionated by dissolving the polymer in a solvent for the low molecular weight fraction. A good separation of the low and high molecular weight fractions can be obtained. When the poly(ethylene oxide) polymer contains a metal cyanide catalyst, this process also provides a good separation of the catalyst from the low molecular weight fraction. In this instance, the catalyst remains active and the high molecular weight fraction containing the catalyst can be recycled into subsequent polymerization processes.

    摘要翻译: 通过将聚合物溶解在低分子量级分的溶剂中来分级具有低和高分子量级分的聚(环氧乙烷)聚合物。 可以获得低分子量和高分子量级分的良好分离。 当聚(环氧乙烷)聚合物含有金属氰化物催化剂时,该方法还提供了催化剂与低分子量级分的良好分离。 在这种情况下,催化剂保持活性,并且含有催化剂的高分子量级分可以再循环到随后的聚合方法中。