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    MULTI-PHASE ADHESIVE ARTICLES AND METHODS THEREOF
    1.
    发明申请
    MULTI-PHASE ADHESIVE ARTICLES AND METHODS THEREOF 有权

    公开(公告)号：US20220403209A1

    公开(公告)日：2022-12-22

    申请号：US17638534

    申请日：2020-08-21

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dmitriy Salnikov ,  Kristin L. Thunhorst ,  Nathan L. Gergen ,  Henrik B. van Hengerich

    IPC: C09J7/10

    Abstract: Provided are adhesive articles and related methods of making and use. The adhesive article includes one or more patterned adhesive layers comprising compositionally and spatially distinct adhesives that are laterally disposed relative to each other. The first and second adhesives are optionally capable of being functionally cured to provide a structural adhesive bond with a substrate. These adhesives can provide high fracture toughness and high modulus characteristics not otherwise possible in a homogeneous adhesive composition. These adhesives can provide some degree of crack arrestment and significantly reduce the need for mechanical fasteners in industrial bonding applications.

    EPOXY COMPOSITIONS AND SURFACING FILMS THEREFROM
    2.
    发明申请
    EPOXY COMPOSITIONS AND SURFACING FILMS THEREFROM 审中-公开

    公开(公告)号：US20180291139A1

    公开(公告)日：2018-10-11

    申请号：US16006659

    申请日：2018-06-12

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Scott A. Boyd ,  Dmitriy Salnikov ,  David T. Amos

    IPC: C08G59/40 ,  C08L63/00 ,  C08L79/00

    Abstract: A composition is provided comprising: a) a curable epoxy resin; and b) 0.01-30% by weight of a polycarbodiimide according to Formula I: R—{—N═C═N—R—}n—N═C═N—R  (I) wherein n is an integer between 0 and 100, and wherein each R is independently selected from aromatic and aliphatic groups which contain between 1 and 24 carbons and which are optionally substituted, typically comprising 0.1-20% by weight of the polycarbodiimide. In some embodiments the present disclosure provides sheet materials made of such cured, uncured or partially cured materials. In some embodiments these compositions may be useful in making surfacing films for composite parts and may demonstrate good paint stripper resistance and microcrack resistance.

    SURFACING AND/OR JOINING METHOD
    3.
    发明申请
    SURFACING AND/OR JOINING METHOD 审中-公开
    表面和/或接合方法

    公开(公告)号：US20160024356A1

    公开(公告)日：2016-01-28

    申请号：US14875133

    申请日：2015-10-05

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dmitriy Salnikov ,  Clayton A. George

    IPC: C09J163/00 ,  C09J121/00 ,  C09J133/04

    CPC classification number: C09J163/00 ,  C08J7/047 ,  C08L9/02 ,  C08L77/10 ,  C08L81/06 ,  C08L2666/02 ,  C08L2666/04 ,  C09J121/00 ,  C09J133/04 ,  Y10T428/254 ,  Y10T428/31504 ,  Y10T428/31511 ,  Y10T428/31721 ,  Y10T428/31786

    Abstract: A method for surfacing a polymeric composite article and/or for joining (for example, by bonding or by co-curing) the article and an adherend (for example, a second polymeric composite article) comprises (a) providing a cured or curable polymeric composite article; (b) providing a curable composition comprising (1) at least one thermosetting resin, and (2) at least one preformed, substantially non-functional, particulate modifier comprising at least one elastomer; and (c) directly or indirectly applying the composition to at least a portion of at least one surface of the article.

    Abstract translation: 用于表面聚合复合制品和/或用于接合（例如通过粘合或共同固化）制品和被粘物（例如，第二聚合物复合制品）的方法包括（a）提供固化或固化的聚合物 复合制品; （b）提供可固化组合物，其包含（1）至少一种热固性树脂，和（2）至少一种预先形成的，基本上无功能的颗粒改性剂，其包含至少一种弹性体; 和（c）将所述组合物直接或间接施用于制品的至少一个表面的至少一部分。

    Surfacing film for composite structures
    4.
    发明授权
    Surfacing film for composite structures 有权

    公开(公告)号：US10442550B2

    公开(公告)日：2019-10-15

    申请号：US15482898

    申请日：2017-04-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dmitriy Salnikov

    IPC: B64D45/02 ,  B32B7/02 ,  B32B15/08 ,  B32B15/20 ,  B32B27/18 ,  B32B27/28 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B27/38 ,  B32B27/42

    Abstract: A layered construction is provided having a storage modulus G′t25 at 25° C., comprising: a) a cured polymeric composite having a storage modulus G′s25 at 25° C.; and b) a cured surfacing film bound thereto; wherein G′t25 is not greatly elevated over G′s25, typically not more than 118% of G′s25. In some embodiments the cured surfacing film comprises an electrically conductive layer, typically a metal layer. In some embodiments the cured surfacing film comprises a cured epoxy resin which may optionally be a chain-extended epoxy resin and may excludes phosphorus. The resulting layered construction may display high erosion resistance, high corrosion resistance, and high resistance to microcracking. In another aspect, methods of making the subject layered constructions are provided.

    Curable Composition
    7.
    发明申请
    Curable Composition 有权

    公开(公告)号：US20230132320A1

    公开(公告)日：2023-04-27

    申请号：US17918188

    申请日：2021-04-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Lianzhou Chen ,  Sohaib Elgimiabi ,  Dmitriy Salnikov ,  Jay S. Schlechte ,  Yaoyao Chen

    IPC: C08G59/18 ,  C08G59/50 ,  C08G59/32 ,  C08G59/42 ,  C09J163/00

    Abstract: Provided is a curative part usable in a two-part curable composition. The curative part includes a liquid amine; a heterogeneous dispersant; and core-shell rubber particles having an elastomeric core and a (meth)acrylic shell. The core-shell rubber particles and the heterogeneous dispersant can be collectively shear-dispersed in the liquid amine such that the core-shell rubber particles are substantially non-aggregated and the curative part is phase-stable over a period of at least 3 months at ambient temperature. Advantageously, large amounts of core-shell rubber particles can thus be incorporated into a cured resin matrix, which can afford significantly enhanced impact performance.

    METHOD OF MAKING STRUCTURED HYBRID ADHESIVE ARTICLES
    8.
    发明申请
    METHOD OF MAKING STRUCTURED HYBRID ADHESIVE ARTICLES 审中-公开

    公开(公告)号：US20190160729A1

    公开(公告)日：2019-05-30

    申请号：US16265211

    申请日：2019-02-01

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Larry S. Hebert ,  Dmitriy Salnikov

    IPC: B29C59/00 ,  C09J163/00 ,  C09J7/20 ,  C08G59/66 ,  C09D5/24 ,  C08G59/56

    Abstract: A method is provided for making structured hybrid adhesive articles comprising the steps of: a) providing an adhesive article comprising: i) a base resin comprising an epoxy resin, ii) a first epoxy curative, and iii) a second epoxy curative, by reacting the base resin with the first epoxy curative such that the first epoxy curative is substantially reacted with epoxy resin in the article and the second epoxy curative is substantially unreacted in the article; b) embossing the adhesive article with a relief pattern; and c) curing the adhesive article such that the second epoxy curative is substantially reacted with epoxy in the article. In some embodiments, the method additionally comprises a step of embedding a scrim in the adhesive. In some embodiments, the method additionally comprises a step of depositing an electrically conductive layer onto the surface of the adhesive article embossed with the relief pattern.

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