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    ONE-PART THERMALLY CURABLE COMPOSITION
    11.
    发明申请
    ONE-PART THERMALLY CURABLE COMPOSITION 有权

    公开(公告)号：US20210324250A1

    公开(公告)日：2021-10-21

    申请号：US17271457

    申请日：2019-09-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kolby L. White ,  Joseph D. Rule ,  Matthew J. Kryger ,  Michael A. Kropp

    IPC: C09J175/04 ,  C09J5/06 ,  C08G18/00 ,  C08G18/79 ,  C08G18/20 ,  C08G18/28 ,  C08G18/32 ,  C08G18/38 ,  B32B7/12

    Abstract: A one-part thermally curable composition comprises at least one polyuretdione, thermally activatable amine curative; optional epoxy resin; optional polythiol having an average sulfhydryl group functionality of at least 2; and optional acid stabilizer. The at least one polyuretdione has an average uretdione ring functionality of at least 1.2, and is a reaction product of components comprising: a uretdione-containing material comprising a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound having a single OH group, wherein the first hydroxyl-containing compound is a primary alcohol or a secondary alcohol; and a second hydroxyl-containing compound having more than one OH group, wherein the second hydroxyl-containing compound is a polyol and the reaction product comprises 0.2 to 0.5, inclusive, of hydroxyl equivalents relative to isocyanate equivalents. Cured compositions and assemblies including them are also disclosed.

    POLYMERIC MATERIAL INCLUDING URETDIONE-CONTAINING MATERIAL, POLYTHIOL, AND ACIDIC STABILIZER, TWO-PART COMPOSITIONS, AND METHODS
    12.
    发明申请
    POLYMERIC MATERIAL INCLUDING URETDIONE-CONTAINING MATERIAL, POLYTHIOL, AND ACIDIC STABILIZER, TWO-PART COMPOSITIONS, AND METHODS 有权

    公开(公告)号：US20210317258A1

    公开(公告)日：2021-10-14

    申请号：US17265011

    申请日：2019-09-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kolby L. White ,  Joseph D. Rule ,  Matthew J. Kryger ,  Michael A. Kropp

    IPC: C08G18/79 ,  C08G18/10 ,  C08G18/28 ,  C08G18/38 ,  C08G18/32 ,  C09J175/04

    Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components, a polythiol having an average sulfhydryl group functionality of 2 or greater, and an acidic stabilizer. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound having more than one OH group; and an optional second hydroxyl-containing compound having a single OH group. The second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which a polymeric material is included in the first part and the second part includes at least one accelerator. 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 curing a two-part composition. Advantageously, two-part compositions according to the present disclosure can be used as sealants, coatings, and adhesive systems having a two-step cure with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

    Polymeric Material Including a Uretdione-Containing Material and Inorganic Filler, Two-Part Compositions, Products, and Methods
    15.
    发明申请
    Polymeric Material Including a Uretdione-Containing Material and Inorganic Filler, Two-Part Compositions, Products, and Methods 有权

    公开(公告)号：US20220396659A1

    公开(公告)日：2022-12-15

    申请号：US17771905

    申请日：2020-12-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kolby L. White ,  Li Yao ,  Joseph D. Rule ,  Matthew J. Kryger ,  Michael A Kropp

    IPC: C08G18/12 ,  C08G18/79 ,  C08G18/22 ,  C08G18/28 ,  C08G18/32 ,  C08G18/48 ,  C08G18/50 ,  C08K3/22 ,  C08K3/14 ,  C08K3/38 ,  B32B7/12

    Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and an inorganic filler. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. 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 polymerized product of the two-part composition and a battery module. Advantageously, two-part compositions can be used as coatings and adhesive systems including high loadings of inorganic filler, such as thermally conductive filler, with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.

    LIGHT CURABLE COMPOSITIONS
    19.
    发明申请
    LIGHT CURABLE COMPOSITIONS 有权

    公开(公告)号：US20210198520A1

    公开(公告)日：2021-07-01

    申请号：US17268401

    申请日：2019-09-05

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Ying Lin ,  Sheng Ye ,  Timothy D. Dunbar ,  Bradley D. Craig ,  Dong-Wei Zhu ,  Matthew J. Kryger ,  Richard J. Pokorny ,  Michael A. Kropp

    IPC: C09D175/06 ,  C09D4/06 ,  C08K9/06 ,  B05D3/06 ,  B05D7/00

    Abstract: A curable composition that includes a urethane multifunctional (meth)acrylate, an inorganic filler having a primary particle dimension of at least 200 nm, a photoinitiator system that can be activated by electromagnetic radiation in the range of 340-550 nm, a reactive diluent, and a reinforcing silica having a primary particle dimension of 100 nm of less. The sum of the absolute value of the difference in the refractive index of the filler and the refractive index of the composition cured without filler plus the birefringence of the filler is 0.054 or less, i.e. 0.054≥|nfiller−nmatrix|+δfiller, where nfiller is the refractive index of the filler, nmatrix is the refractive index of the composition cured without filler, and δfiller is the birefringence of the filler.

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