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    FREE-RADICALLY POLYMERIZABLE CROSSLINKER, CURABLE COMPOSITION, AND ADHESIVE THEREFROM
    3.
    发明公开
    FREE-RADICALLY POLYMERIZABLE CROSSLINKER, CURABLE COMPOSITION, AND ADHESIVE THEREFROM 审中-公开

    公开(公告)号：US20230399463A1

    公开(公告)日：2023-12-14

    申请号：US18036230

    申请日：2021-09-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Wayne S. Mahoney ,  Michael A. Kropp ,  Anthony J. Ostlund

    IPC: C08G65/26 ,  C08F220/30 ,  C09J4/06

    CPC classification number: C08G65/2615 ,  C08F220/30 ,  C09J4/06

    Abstract: A free-radically polymerizable crosslinker comprising divalent segments Z represented by the formula (I). Each divalent segment Z is respectively directly bonded to i) two secondary N atoms, each further directly bonded to a divalent segment Z or an X group; ii) two tertiary N atoms, each further directly bonded to p additional divalent segments Z and (2−p) X groups, wherein p is 0, 1, or 2; or iii) a secondary N atom further directly bonded to one additional divalent segment Z or an X group, and a tertiary N atom further directly bonded to p additional divalent segments Z and (2−p) X groups. R1 represents an alkylene group having from 1 to 4 carbon atoms, n represents a positive integer. X is represented by the formula: (II) L represents a covalent bond, O, S, NR1, or a divalent linking group having from 2 to 8 carbon atoms and up to 3 oxygen atoms. R2 is a free-radically polymerizable group selected from vinyloxy, allyloxy, methacryloxy, vinylaryl having from 8 to 12 carbon atoms, and 2-propenylaryl having from 9 to 13 carbon atoms. No two of O, S, or N atoms in the X group are adjacent. A curable composition comprises a monofunctional free-radically polymerizable monomer, a free-radical initiator, and the free-radically polymerizable crosslinker. At least partially cured reaction products are also disclosed.

    POLYMERIC MATERIAL INCLUDING A URETDIONE-CONTAINING MATERIAL AND AN EPOXY COMPONENT, TWO-PART COMPOSITIONS, AND METHODS
    7.
    发明申请
    POLYMERIC MATERIAL INCLUDING A URETDIONE-CONTAINING MATERIAL AND AN EPOXY COMPONENT, TWO-PART COMPOSITIONS, AND METHODS 有权

    公开(公告)号：US20210317254A1

    公开(公告)日：2021-10-14

    申请号：US17265023

    申请日：2019-09-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kolby L. White ,  Joseph D. Rule ,  Michael A. Kropp ,  Matthew J. Kryger ,  Zachary J. Thompson ,  Richard B. Ross

    IPC: C08G18/28 ,  C08G18/00 ,  C08G18/20 ,  C08G18/22 ,  C08G18/32 ,  C08G18/42 ,  C08G18/48 ,  C08G18/50 ,  C08G18/79 ,  C08G18/80 ,  C09D175/08 ,  C09J175/08 ,  B32B7/12 ,  B32B37/12

    Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; an optional second hydroxyl-containing compound having a single OH group, wherein; and an epoxy component. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymeric material and a method of making a two-part composition. Advantageously, two-part compositions according to the present disclosure can be used as coatings and adhesive systems with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

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