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    Waterborne azido-alkyne click compositions
    56.
    发明授权
    Waterborne azido-alkyne click compositions 有权

    公开(公告)号：US11261344B2

    公开(公告)日：2022-03-01

    申请号：US16694064

    申请日：2019-11-25

    Applicant: Covestro LLC ,  The University Of Southern Mississippi

    Inventor： Robson F. Storey ,  Alan Ekin ,  Jie Wu

    IPC: C09D175/12 ,  C09J175/12 ,  C08G18/10 ,  C08G18/22 ,  C08G18/78 ,  C08G18/50 ,  C08G18/67 ,  C08G18/48 ,  C08G18/66 ,  C08G18/62 ,  C08G18/34 ,  C08G18/24 ,  C08G18/28 ,  C09D175/08 ,  C09D175/16

    Abstract: A waterborne alternative polyurethane composition is provided which comprises a reaction product of: an azidated polyol; and a waterborne poly(alkynyl carbamate) prepolymer comprising a reaction product of a polyisocyanate and from 1 wt. % to 20 wt. % of an alkynol-polyether having a formula (I), R1—R2—O—R3—OH  (I), wherein, R1=a monovalent group selected from either HC≡C— or HC≡C—CO—, R2=a divalent alkylene group from 1 to 8 carbon atoms, and may be straight chain or branched and may contain cyclic moieties, and R3=a polyethylene glycol with number average molecular weight from 300-1,200 g/mol, wherein the wt. % is based on the weight of the prepolymer, wherein reaction of the azidated polyol and the waterborne poly(alkynyl carbamate) occurs at a temperature of from 20° C. to 200° C. and optionally in the presence of a catalyst. The inclusion of an alkynol-polyether does not materially alter the performance properties and reactivity of the waterborne polyurethane composition relative to a solventborne polyurethane control composition. Inclusion of the alkynol-polyether reduces the need for organic solvents by allowing for the use of water as a carrier. The inventive waterborne alternative polyurethane compositions may find use in or as coatings, adhesives, sealants, films, elastomers, castings, foams, and composites.

    Polymeric Material Including a Uretdione-Containing Material, an Epoxy Component, and an Accelerator, Two-Part Compositions, and Methods
    58.
    发明申请
    Polymeric Material Including a Uretdione-Containing Material, an Epoxy Component, and an Accelerator, Two-Part Compositions, and Methods 有权

    公开(公告)号：US20210388152A1

    公开(公告)日：2021-12-16

    申请号：US17284817

    申请日：2019-12-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kolby L. White ,  Joseph D. Rule ,  Michael A. Kropp ,  Matthew J. Kryger ,  Susan E. DeMoss ,  Jonathan D. Zook ,  Zachary J. Thompson

    IPC: C08G18/79 ,  C08G18/80 ,  C08G18/58 ,  C08G18/28 ,  C08G18/32 ,  C08G18/38

    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; an epoxy component; and an accelerator. 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 a polymeric material is included in the first part and the second part includes at least one thiol-containing compound. 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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