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    N,N'-DIALKYL METHYLCYCLOHEXANEDIAMINE AS REACTIVE DILUENT WITHIN EPOXY RESIN SYSTEMS
    3.
    发明申请
    N,N'-DIALKYL METHYLCYCLOHEXANEDIAMINE AS REACTIVE DILUENT WITHIN EPOXY RESIN SYSTEMS 有权

    公开(公告)号：US20210102026A1

    公开(公告)日：2021-04-08

    申请号：US16627505

    申请日：2018-07-13

    申请人： BASF SE

    发明人： Matthaeus KOPCZYNSKI ,  Alexander PANCHENKO ,  Irene GORMAN ,  Michael HENNINGSEN

    IPC分类号： C08G59/50 ,  C08G59/56 ,  C07C211/36

    摘要： Secondary diamine N,N′-dialkyl methylcyclohexanediamine acts as a reactive diluent for curable epoxy resin compositions. The addition of this compounds significantly reduces the initial viscosity of the epoxy resin composition while the resulting cured epoxy resin exhibits comparable favorable mechanical, chemical resistance and thermal properties such as low water uptake and high glass transition temperatures. Such compositions are particular suitable for manufacturing of composites with high mechanical and heat resistance properties by the means of resin transfer molding (RTM), vacuum aided resin transfer molding (VARTM) or infusion technology.

    EPOXY-RESIN COMPOSITION FOR FIBER-MATRIX SEMIFINISHED PRODUCTS
    5.
    发明申请
    EPOXY-RESIN COMPOSITION FOR FIBER-MATRIX SEMIFINISHED PRODUCTS 有权
    环氧树脂组合物用于纤维 - 基质半成品

    公开(公告)号：US20160115283A1

    公开(公告)日：2016-04-28

    申请号：US14890836

    申请日：2014-05-05

    申请人： BASF SE

    发明人： Chunhong YIN ,  Achim KAFFEE ,  Michael HENNINGSEN ,  Joachim ZWECKER ,  Lionel GEHRINGER

    IPC分类号： C08J5/04 ,  C08K7/14 ,  C08K7/06

    CPC分类号： C08J5/043 ,  C08G59/4021 ,  C08G59/5073 ,  C08J5/042 ,  C08J2363/00 ,  C08K7/06 ,  C08K7/14 ,  C08L63/00

    摘要： The present invention relates to an epoxy-resin composition as matrix component for sheet molding compounds (SMC) and/or bulk molding compounds (BMC), comprising a resin component comprising at least one epoxy resin and a hardener component comprising at least one imidazole compound and at least one latent hardener. In said epoxy-resin composition, the amount of the imidazole compounds used is in the range from 0.007 to 0.025 mol per mole of epoxy groups of the entire composition, and the total amount of primary amine groups optionally comprised does not exceed a proportion of 0.09 mol per mole of epoxy groups of the entire composition. The invention also relates to a fiber-matrix-semifinished-product composition (SMC composition or BMC composition) with, as matrix component, the epoxy-resin composition mentioned, and with, suspended therein, short reinforcement fibers with an average length of from 0.3 to 5.0 cm. The fiber-matrix-semifinished-product composition can be produced via mixing of the constituents, whereupon the composition thickens. The resultant thickened product (semisolid fiber-matrix semifinished product) features comparatively short maturing time and comparatively long available operating time. The invention also relates to the corresponding semisolid fiber-matrix composite, in particular to the semisolid SMC and to the corresponding cured fiber-matrix semifinished product, in particular the cured SMC. Finally, the invention also relates to a screening process for identifying epoxy-resin-based compositions which are suitable for use as thermoset matrix for producing SMC.

    摘要翻译： 本发明涉及一种环氧树脂组合物作为片状成型化合物（SMC）和/或块状模塑料（BMC）的基质成分，其包含至少一种环氧树脂和包含至少一种咪唑化合物的固化剂组分的树脂组分 和至少一种潜在的固化剂。 在所述环氧树脂组合物中，咪唑化合物的使用量相对于整个组合物的每摩尔环氧基为0.007至0.025摩尔，并且任选包含的伯胺基团的总量不超过0.09 mol / mol整个组合物的环氧基团。 本发明还涉及一种纤维基质半成品组合物（SMC组合物或BMC组合物），其具有作为基质组分的所述环氧树脂组合物，并且悬浮在其中，具有平均长度为0.3 至5.0厘米。 纤维基质半成品组合物可以通过混合组分来制备，于是组合物变稠。 所得到的增稠产品（半固体纤维基质半成品）的成熟时间相对较短，可用的操作时间相对较长。 本发明还涉及相应的半固体纤维基质复合物，特别是涉及半固体SMC和相应的固化纤维基质半成品，特别是固化的SMC。 最后，本发明还涉及一种用于鉴定适合用作生产SMC的热固性基质的环氧树脂基组合物的筛选方法。