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    IRON(III) COMPLEXES AS CATALYSTS FOR POLYURETHANE COMPOSITIONS
    24.
    发明申请
    IRON(III) COMPLEXES AS CATALYSTS FOR POLYURETHANE COMPOSITIONS 有权
    铁（III）复合物作为聚氨酯组合物的催化剂

    公开(公告)号：US20140357793A1

    公开(公告)日：2014-12-04

    申请号：US14358964

    申请日：2012-12-12

    Applicant: SIKA TECHNOLOGY AG

    Inventor： Rita Cannas ,  Urs Burckhardt

    IPC: C08G18/22 ,  C08G18/48 ,  C08G18/76 ,  C07F15/02

    CPC classification number: C08G18/222 ,  C07C235/80 ,  C07F15/02 ,  C07F15/025 ,  C08G18/22 ,  C08G18/48 ,  C08G18/4837 ,  C08G18/7671

    Abstract: The present invention relates to iron (III) complexes of the formula Fe(L)x(Y)3-x, where the ligand L has the formula (I). Such complexes are especially suitable as a catalyst for two-component polyurethane compositions. The invention also relates to two-component polyurethane compositions comprising at least one polyisocyanate as the first component, at least one polyol as the second component and at least one iron (III) complex of this kind as a catalyst. In addition, the invention relates to various uses of these two-component polyurethane compositions.

    Abstract translation: 本发明涉及式Fe（L）x（Y）3-x的铁（III）配合物，其中配体L具有式（I）。 这种配合物特别适用作双组分聚氨酯组合物的催化剂。 本发明还涉及包含至少一种多异氰酸酯作为第一组分，至少一种多元醇作为第二组分和至少一种这种类型的铁（III）络合物作为催化剂的双组分聚氨酯组合物。 此外，本发明涉及这些双组分聚氨酯组合物的各种用途。

    HARDENERS FOR EPOXY RESIN COATINGS
    25.
    发明申请
    HARDENERS FOR EPOXY RESIN COATINGS 有权
    环氧树脂涂料硬化剂

    公开(公告)号：US20140288247A1

    公开(公告)日：2014-09-25

    申请号：US14357461

    申请日：2012-11-08

    Applicant: SIKA TECHNOLOGY AG

    Inventor： Urs Burckhardt ,  Edis Kasemi

    IPC: C07C211/49 ,  C08L63/00

    CPC classification number: C07C211/49 ,  C08G59/184 ,  C08G59/5033 ,  C08G59/504 ,  C08L63/00

    Abstract: The invention relates to hardeners for epoxy resin containing secondary amino groups having dialkyl amino phenyl groups. The hardeners have a surprisingly low viscosity and harden surprisingly fast together with the epoxy resins, even in moist, cold conditions, and without blushing to form films with high hardness and stability. They are suitable, in particular, for low-emission coatings.

    Abstract translation: 本发明涉及含有具有二烷基氨基苯基的仲氨基的环氧树脂硬化剂。 硬化剂具有令人惊讶的低粘度，并与环氧树脂一起令人惊奇地快速硬化，即使在潮湿，冷的条件下，也不会发白，以形成具有高硬度和稳定性的薄膜。 它们特别适用于低排放涂料。

    Thixotropic agent for curable compositions
    26.
    发明授权
    Thixotropic agent for curable compositions 有权

    公开(公告)号：US12240960B2

    公开(公告)日：2025-03-04

    申请号：US17281311

    申请日：2019-11-11

    Applicant: SIKA TECHNOLOGY AG

    Inventor： Andreas Kramer ,  Urs Burckhardt ,  Michael Schlumpf ,  Martin Konstanzer

    IPC: C08K5/21 ,  C07C273/18 ,  C08K5/06 ,  C09K3/10

    Abstract: A thixotropic agent for increasing the yield point of a curable composition, wherein the thixotropic agent includes (i) at least one urea compound from the reaction of at least one isocyanate with at least one amine and (ii) at least one polyether having blocked hydroxyl groups. The thixotropic agent is preparable in a simple manner and forms a spreadable paste which is firm at room temperature. It is particularly suitable as a constituent of moisture-curing polyurethane or SMP compositions, giving a good increase in the yield point thereof, without adversely affecting storage stability or migration characteristics. It enables phthalate-free adhesives, sealants or coatings that have surprisingly good conveyability coupled with a high yield point, and do not cause any problems with odor or fogging.

    Blocking agent for amines, latent hardeners and polyurethane compositions
    29.
    发明授权
    Blocking agent for amines, latent hardeners and polyurethane compositions 有权

    公开(公告)号：US11518736B2

    公开(公告)日：2022-12-06

    申请号：US16618820

    申请日：2018-06-19

    Applicant: SIKA TECHNOLOGY AG

    Inventor： Urs Burckhardt ,  Andreas Kramer

    IPC: C07C251/24 ,  C07C249/02 ,  C08G18/12 ,  C08G18/32 ,  C08G18/48 ,  C08G18/75 ,  C08G18/76 ,  C08L75/08

    Abstract: The use of an aldehyde mixture containing 70 to 95 wt % of aldehydes of formula (I) and 5 to 30 wt % of alkylbenzene compounds not corresponding to formula (I) as a blocking agent for amines results in odorless, especially economically blocked amines, which at room temperature are typically liquid and have a surprisingly low viscosity. Such blocked amines are particularly suitable as latent hardeners in isocyanate-group-containing compositions. Single-component moisture-curing polyurethane compositions formulated therewith are surprisingly stable in storage, can be used for low-emission applications without odor problems and do not trigger any problems with plasticizer migration. Surprisingly, said compositions even have advantages over corresponding compositions having latent hardeners based on purified aldehydes of formula (I), in particular with respect to viscosity, storage stability and especially strength.

    Method for producing a curing agent for low-emission epoxy resin compositions
    30.
    发明授权
    Method for producing a curing agent for low-emission epoxy resin compositions 有权

    公开(公告)号：US11225588B2

    公开(公告)日：2022-01-18

    申请号：US16487954

    申请日：2018-03-13

    Applicant: SIKA TECHNOLOGY AG

    Inventor： Edis Kasemi ,  Andreas Kramer ,  Ursula Stadelmann ,  Urs Burckhardt

    IPC: C09D163/00 ,  C08G59/18 ,  C08G59/24 ,  C08G59/50

    Abstract: A process for preparing a curing agent for epoxy resins, in which an amine mixture including at least one parent amine of the formula (I) and at least one alkylated amine of the formula (II) is reacted or adducted with at least one glycidyl ether of the formula (III). The amine mixture is especially a reaction mixture from the partial alkylation of the amine of the formula (I). The process described enables, with low energy expenditure and high space-time yield, curing agents of low odor, low toxicity, low viscosity and high reactivity for epoxy resins and epoxy resin products that cure rapidly at ambient temperatures and especially also under cold conditions and at the same time enable high-quality coatings having an even, shiny surface.

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