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    Silicone copolymers, methods of making, and articles
    6.
    发明授权
    Silicone copolymers, methods of making, and articles 有权

    公开(公告)号：US10941252B2

    公开(公告)日：2021-03-09

    申请号：US16345809

    申请日：2017-10-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hannah C. Cohen ,  Amanda C. Engler ,  Ranjani V. Parthasarathy ,  Haoming Rong ,  Ramesh C. Kumar ,  Matthew T. Scholz ,  James P. Dizio ,  Audrey A. Sherman ,  Richard G. Hansen ,  Douglas A. Hanggi ,  Dale J. Case ,  David Duane Johnson

    IPC: C08G77/46 ,  C08G77/458 ,  C08K5/00 ,  C08G64/18

    Abstract: A copolymer composition that includes a silicone copolymer, methods of making the composition, and articles that include the composition, wherein the copolymer composition includes a silicone copolymer having a backbone composition that includes: silicone segments in an amount of 5 wt-% to 40 wt-%, based on the total weight of the silicone copolymer; hydrophilic segments in an amount of 40 wt-% to 75 wt-%, based on the total weight of the silicone copolymer; and reinforcing segments in an amount of 5 wt-% to 30 wt-%, based on the total weight of the silicone copolymer, wherein the reinforcing segments are derived from the reaction of one or more chain extenders with one or more multi-functional isocyanates, multi-functional carboxylic acids, multi-functional anhydrides, multi-functional esters, and/or multi-functional acid halides; wherein the silicone segments, hydrophilic segments, and reinforcing segments are connected through urea, urethane, amide, and/or oxamide linkages; wherein the hydrophilic segments and the reinforcing segments are present in a weight ratio of 1.8:1 to 8:1; and the hydrophilic segments and the silicone segments are present in a weight ratio of 1.3:1 to 4.5:1.

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