CURING AGENTS FOR EPOXY RESINS WITH LOW TENDENCY TO THE FORMATION OF CARBAMATES

    公开(公告)号:WO2019134824A1

    公开(公告)日:2019-07-11

    申请号:PCT/EP2018/085597

    申请日:2018-12-18

    Applicant: BASF SE

    CPC classification number: C08G59/5026

    Abstract: The present invention relates to amine-based curing agents for epoxy resins with low tendency to the formation of carbamates. In particular the invention relates to methylcyclohexyl diamine based adducts which are particularly suitable for the curing of epoxy resins in the presence of humidity, e.g. flooring applications, because of their low tendency to the formation of carbamates (blushing). Accordingly, the invention relates to a process for the preparation of a cured epoxy resin by curing a curable composition comprising an epoxy resin and an adduct at a curing temperature in the range of 0°C to 100°C, wherein the adduct is formed by reacting methylcyclohexyl diamine with a diglycidyl ether diol, and wherein the composition is exposed to humidity at least least part of the initial 24h time period of the curing starting with the time mixing epoxy resin and adduct of the composition. The invention also relates to a hardener component, comprising a diluent and a methylcyclohexyl diamine based adduct,wherein the diluent is selected from the group consisting of benzyl alcohol, bisphenol A, and alkyl substituted phenols.

    PEROXIDE-FREE COATING COMPOSITIONS COMPRISING UNSATURATED POLYESTER

    公开(公告)号:WO2022112331A1

    公开(公告)日:2022-06-02

    申请号:PCT/EP2021/082825

    申请日:2021-11-24

    Applicant: BASF SE

    Abstract: The present invention relates to coating composition comprising at least one unsaturated polyester (A) comprising units of formula (1), a reactive diluent (B) comprising at least one polymerizable compound (B1), at least one catalyst (C), optionally at least one actinic radiation-activatable polymerization initiator (D), optionally at least one solvent (E), optionally at least one coating composition additive (F), and optionally at least one polymer (G) different from the unsaturated polyester (A), with the proviso that the coating composition does not comprise any peroxide, to substrates coated with the coating composition, to a process for the preparation of the coated substrates, and to compositions consisting of at least one unsaturated polyester (A) comprising units of formula (1), a reactive diluent (B) comprising at least one polymerizable compound (B1), at least one catalyst (C), and optionally at least one solvent (E).

    N,N`-DIALKYL METHYLCYCLOHEXANEDIAMINE AS REACTIVE DILUENT WITHIN EPOXY RESIN SYSTEMS

    公开(公告)号:WO2019020400A1

    公开(公告)日:2019-01-31

    申请号:PCT/EP2018/069060

    申请日:2018-07-13

    Applicant: BASF SE

    Abstract: Secondary diamine Ν,Ν`-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.

    VERFAHREN ZUR HERSTELLUNG VON SEKUNDÄREN, CYCLOALIPHATISCHEN AMINEN
    6.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON SEKUNDÄREN, CYCLOALIPHATISCHEN AMINEN 审中-公开
    制备次级环脂肪族胺的方法

    公开(公告)号:WO2018007207A1

    公开(公告)日:2018-01-11

    申请号:PCT/EP2017/065864

    申请日:2017-06-27

    Applicant: BASF SE

    Abstract: Verfahren zur Herstellung einer Verbindung der Formel I (I) oder der Formel II (II) oder deren Gemische, wobei R 1 für einen Kohlenwasserstoffrest mit maximal 14 C-Atomen steht, dadurch gekennzeichnet, dass eine Verbindung der Formel III (III) oder der Formel IV (IV) oder deren Gemische mit einem Aldehyd oder Keton mit jeweils maximal 14 C-Atomen in Gegenwart von Wasserstoff umgesetzt werden.

    Abstract translation: 用于制备式I(I)或式II(II)化合物或其混合物的方法,其中R 1对于具有最大14 C的烃基 原子的特征在于式III(III)或式IV(IV)的化合物或其与醛或酮的混合物在氢气存在下在每种情况下与最多14个碳原子反应,

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