Heat-curable mixtures, stable on storage, based on polyimides and
containing polymerization catalysts
    3.
    发明授权
    Heat-curable mixtures, stable on storage, based on polyimides and containing polymerization catalysts 失效
    可热固化的混合物,储存稳定,基于聚酰亚胺和含有聚合催化剂

    公开(公告)号:US4525572A

    公开(公告)日:1985-06-25

    申请号:US600867

    申请日:1984-04-16

    CPC分类号: C08G73/121 C08F22/40

    摘要: A mixture consisting of a polymaleimide and a copolymerizable monomer or a prepolymer formed from these two compounds contains, as the polymerization catalyst, an ethane which is substituted by aromatic groups and hydroxyl groups or halogen (cf. formula II), such as benzpinacol. The mixture is stable on storage and heat-curable. It can be cured, while at the same time being shaped to give mouldings, sheet-like structures, laminates, adhesive bonds or foams, for example by casting or compression moulding.

    摘要翻译: 由聚马来酰亚胺和可共聚单体组成的混合物或由这两种化合物形成的预聚物包含作为聚合催化剂的被芳族基团和羟基或卤素取代的乙烷(参见式II),例如苯平胆醇。 该混合物在储存和热固化时是稳定的。 它可以被固化,同时被成形为赋予模制品,片状结构,层压材料,粘合剂粘合剂或泡沫,例如通过铸造或压缩成型。

    Hot-foamable, thermosetting epoxy resin mixture
    4.
    发明授权
    Hot-foamable, thermosetting epoxy resin mixture 失效
    热发泡,热固性环氧树脂混合物

    公开(公告)号:US4798848A

    公开(公告)日:1989-01-17

    申请号:US190326

    申请日:1988-05-05

    申请人: Hermann Diethelm

    发明人: Hermann Diethelm

    IPC分类号: C08J9/10

    CPC分类号: C08J9/10 C08J2363/00

    摘要: Cured foams with a high degree of closed cellular structure, good stability under prolonged heat exposure and good compressive strength can be produced from a hot-foamable, thermosetting epoxy resin mixture containing (a) an epoxy resin or a mixture of epoxy resins with an average epoxide content of 4.4 to 5.0 equivalents/kg and an average epoxide functionality of more than 2.0, (b) a novolak with a hydroxyl equivalent weight of 90 to 120, 0.8 to 0.95 hydroxyl equivalents of component (b) being present in the epoxy resin mixture per 1 epoxide equivalent of component (a), (c) 1.0 to 1% by weight, based on the amount of components (a) and (b), of a curing accelerator, (d) 0.5 to 10% by weight, based on the amount of components (a) and (b), of a blowing agent which splits off nitrogen above 100.degree. C. with decomposition, (e) 0.3 to 1% by weight, based on the total amount of the epoxy resin mixture, of an emulsifier, and if appropriate (f) foam modifiers.

    摘要翻译: 具有高度封闭的细胞结构的固化泡沫体,在长时间的热曝光下具有良好的稳定性和良好的抗压强度可以由含有(a)环氧树脂或环氧树脂与平均混合物的热可发泡热固性环氧树脂混合物 环氧化物含量为4.4〜5.0当量/平均环氧官能度大于2.0,(b)羟基当量为90〜120的酚醛清漆,(b)成分的羟基当量为0.8〜0.95,存在于环氧树脂 基于组分(a)和(b)的量,组分(a),(c)为1.0至1重量%的混合物,(d)0.5至10重量% 基于组分(a)和(b)的量,分解出100℃以上的氮分解发泡剂,(e)基于环氧树脂混合物的总量为0.3〜1重量% 的乳化剂,如果合适的话(f)泡沫改性剂。

    Heat-curable mixtures, stable on storage, based on polyimides and
containing polymerization catalysts
    5.
    发明授权
    Heat-curable mixtures, stable on storage, based on polyimides and containing polymerization catalysts 失效
    可热固化的混合物,储存稳定,基于聚酰亚胺和含有聚合催化剂

    公开(公告)号:US4463147A

    公开(公告)日:1984-07-31

    申请号:US449023

    申请日:1982-12-13

    CPC分类号: C08G73/121 C08F22/40

    摘要: A mixture consisting of a polymaleimide and a copolymerizable monomer or a prepolymer formed from these two compounds contains, as the polymerization catalyst, an ethane which is substituted by aromatic groups and hydroxyl groups or halogen (cf. formula II), such as benzpinacol. The mixture is stable on storage and heat-curable. It can be cured, while at the same time being shaped to give mouldings, sheet-like structures, laminates, adhesive bonds or foams, for example by casting or compression moulding.

    摘要翻译: 由聚马来酰亚胺和可共聚单体组成的混合物或由这两种化合物形成的预聚物包含作为聚合催化剂的被芳族基团和羟基或卤素取代的乙烷(参见式II),例如苯平胆醇。 该混合物在储存和热固化时是稳定的。 它可以被固化,同时被成形为赋予模制品,片状结构,层压材料,粘合剂粘合剂或泡沫,例如通过铸造或压缩成型。

    Pressure reaction injection molding process for making molded bodies of
thermosets optionally containing filler and/or reinforcing material
    6.
    发明授权
    Pressure reaction injection molding process for making molded bodies of thermosets optionally containing filler and/or reinforcing material 失效
    用于制备任选含有填料和/或增强材料的热固性材料的成型体的压力反应注射成型方法

    公开(公告)号:US4784814A

    公开(公告)日:1988-11-15

    申请号:US881987

    申请日:1986-07-03

    摘要: Molded bodies of thermoset material are produced from monomers, oligomers or higher pre-polymers of reactive resins by pressure reaction injection molding. The molded bodies may contain filler and/or reinforcing material. The process is carried out in a mold consisting of a first, preferably upper half mold and a second, preferably lower half mold, and an inlet socket opening downwardly into the first half mold. The mold is equipped with heating coils adapted for applying separately a lower temperature to the first half mold and a higher temperature to the second one. During the introduction and hardening phase of the reactive mixture, the first half mold is maintained at a lower temperature than the second half mold, the temperature difference amounts to about 40 to 180, and preferably 60 to 120 centigrades.

    摘要翻译: 热固性材料的成型体通过压力反应注射成型由单体,低聚物或反应性树脂的较高预聚物制备。 成型体可以包含填料和/或增强材料。 该过程在由第一优选上半模和第二优选下半模的模具中进行,以及向下进入第一半模的入口插座。 模具配备有适于单独施加较低温度至第一半模具的加热线圈,并且具有较高温度至第二半模具。 在反应混合物的引入和硬化阶段期间,第一半模具保持在比第二半模具更低的温度下,温度差为约40至180℃,优选为60至120℃。