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295 条记录 (耗时 0.013 秒)

    Curing agent for polyepoxides and epoxy resins and composites cured therewith
    81.
    发明授权
    Curing agent for polyepoxides and epoxy resins and composites cured therewith 失效
    用于聚环氧化物和环氧树脂的固化剂以及用其固化的复合材料

    公开(公告)号：US4244857A

    公开(公告)日：1981-01-13

    申请号：US70771

    申请日：1979-08-30

    申请人： Tito T. Serafini ,  Peter Delvigs ,  Raymond D. Vannucci

    发明人： Tito T. Serafini ,  Peter Delvigs ,  Raymond D. Vannucci

    IPC分类号： C07D209/48 ,  C08G59/40 ,  C08K5/3412 ,  C08K7/06 ,  C07D207/06 ,  C08G59/02

    CPC分类号： C07D209/48 ,  C08G59/4042 ,  C08K5/3412

    摘要： A curing agent for a polyepoxide has the formula: ##STR1## wherein R.sub.1 is a divalent aryl radical such as phenylene and wherein R.sub.2 is a tetravalent aryl radical such as a tetravalent benzene radical. An epoxide is cured by admixture with the curing agent. The cured epoxy product retains the usual properties of cured epoxides and, in addition, has a high char residue after burning, on the order of 45% by weight. The high char residue is of value in preventing release to the atmosphere of carbon fibers from carbon fiber-epoxy resin composites in the event of burning of the composite.

    摘要翻译： 聚环氧化物的固化剂具有下式：其中R 1是二价芳基如亚苯基，其中R 2是四价芳基如四价苯基。 环氧化物与固化剂混合固化。 固化的环氧树脂产品保留了固化的环氧化物的通常性质，此外，燃烧后具有高焦炭残留量，约为45重量％。 在燃烧复合材料的情况下，高焦炭残留物在防止碳纤维环氧树脂复合材料的碳纤维气氛中的释放是有价值的。

    Corrosion-inhibiting rubber and methods of preparation
    83.
    发明授权
    Corrosion-inhibiting rubber and methods of preparation 失效
    防腐橡胶及其制备方法

    公开(公告)号：US4051066A

    公开(公告)日：1977-09-27

    申请号：US540565

    申请日：1975-01-13

    申请人： Boris A. Miksic ,  Donovan P. Stern

    发明人： Boris A. Miksic ,  Donovan P. Stern

    IPC分类号： C08L23/00 ,  C08J9/00 ,  C08K5/09 ,  C08K5/17 ,  C08K5/19 ,  C08K5/34 ,  C08K5/3412 ,  C08L7/00 ,  C08L21/00 ,  C08L101/00 ,  C23F11/14 ,  C23F11/18

    CPC分类号： C08K5/3412 ,  C08J9/0028 ,  C08K5/09 ,  C08K5/16 ,  C08K5/17 ,  C08K5/19 ,  C08K5/34

    摘要： The disclosed corrosion-inhibiting elastomers are typically made by milling the corrosion inhibitor into a solid rubber matrix. Preferred corrosion inhibitors include the aromatic carboxylates of primary, secondary or tertiary amines. Chromates and 2-ethylhexanoates can also be used. Organic ammonium nitrites are effective against some types of corrosion, but should be used with relatively inert elastomers. There appears to be synergistic cooperation between the elastomeric molecular structure and the corrosion inhibitor resulting in unusually effective protection of ferrous and/or nonferrous metals adjacent to rubber parts made from the corrosion-inhibiting elastomer.

    摘要翻译： 公开的腐蚀抑制弹性体通常通过将腐蚀抑制剂研磨成固体橡胶基体来制备。 优选的腐蚀抑制剂包括伯胺，仲胺或叔胺的芳族羧酸盐。 也可以使用铬酸盐和2-乙基己酸盐。 有机铵亚硝酸盐对某些类型的腐蚀有效，但应与相对惰性的弹性体一起使用。 在弹性体分子结构和腐蚀抑制剂之间似乎存在协同协作，导致与由腐蚀抑制弹性体制成的橡胶部件相邻的铁和/或有色金属的非常有效的保护。

    Process for the production of a plasticized shaped body from a cellulose derivative
    84.
    发明授权
    Process for the production of a plasticized shaped body from a cellulose derivative 失效
    从纤维素衍生物生产塑化成形体的方法

    公开(公告)号：US4002712A

    公开(公告)日：1977-01-11

    申请号：US533452

    申请日：1974-12-16

    申请人： Klaus Dieter Hammer ,  Wolfgang Klendauer

    发明人： Klaus Dieter Hammer ,  Wolfgang Klendauer

    IPC分类号： A22C13/00 ,  C08B15/10 ,  C08K5/21 ,  C08K5/3412 ,  C08L1/00 ,  D01F2/10 ,  D01F2/08

    CPC分类号： C08K5/21 ,  A22C13/0013 ,  C08B15/10 ,  C08K5/34 ,  C08K5/3412 ,  D01F2/10

    摘要： This invention relates to a process for the production of a shaped body from a cellulose derivative which comprises extruding a viscose solution through a shaping die into a precipitation bath and passing the shaped body thus formed through regenerating and washing baths, then treating the body with an acid aqueous solution of a secondary chemical plasticizer, drying it by heating, and finally moistening it with water after drying, said viscose solution being mixed with a liquid containing alkyl-trimethylol-urea of the following general formula ##STR1## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, and/or with a liquid containing alkyl-ethylene-urea of the following general formula ##STR2## wherein n is a whole number between 11 and 19, preferably between 15 and 18, and especially the number 17, or with a liquid containing alkylamine-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR3## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17, or with a liquid containing alkylamide-bis-dimethylene-triazinonetetramethylol of the following general formula ##STR4## wherein n is a whole number between 9 and 24, preferably between 14 and 19, and especially the number 17.

    摘要翻译： 本发明涉及一种由纤维素衍生物生产成形体的方法，该方法包括将粘胶溶液通过成型模挤出到沉淀浴中，并通过再生和洗涤浴使由此形成的成形体通过，然后用 酸性水溶液的二级化学增塑剂，通过加热干燥，最后在干燥后用水润湿，所述粘胶溶液与含有以下通式的图像的“烷基 - 三羟甲基 - 脲”的液体混合，其中n为整数 9至24之间，优选14至19，特别是17号和/或含有以下通式“IMAGE”的含有烷基 - 乙烯 - 脲的液体，其中n为11至19之间的整数，优选为 15至18之间，特别是17号，或含有含有以下通式的图像的烷基胺 - 二 - 二亚甲基 - 三嗪酮四羟甲基的液体其中 n为9〜24，优选为14〜19，特别是数17，或含有以下通式的单烷基酰胺 - 双 - 二亚甲基 - 三嗪酮四羟甲基的液体，其中n为整数 数量在9和24之间，优选在14和19之间，特别是数字17。