中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.033 seconds)

    Gel adhesive comprising crosslinked blend of polydiorganosiloxane and acrylic polymer
    1.
    发明授权
    Gel adhesive comprising crosslinked blend of polydiorganosiloxane and acrylic polymer 有权

    公开(公告)号：US11965120B2

    公开(公告)日：2024-04-23

    申请号：US16968956

    申请日：2019-04-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Amanda C. Engler ,  Kiu-Yuen Tse ,  Ramesh C. Kumar ,  Adam R. Wohl

    IPC: C09J183/10 ,  A61L15/22 ,  A61L15/58

    CPC classification number: C09J183/10 ,  A61L15/225 ,  A61L15/585

    Abstract: A method of making a silicone gel adhesive is described comprising providing an acrylic polymer, the acrylic polymer comprising at least 50 wt.-% of polymerized units of C1-C32 (meth)acrylate ester monomer; providing at least one non-functional polydiorganosiloxane, hydroxy-functional polydiorganosiloxane, or a mixture thereof; combining the acrylic polymer and polydiorganosiloxane into a mixture; coating the mixture onto a substrate, and subjecting the mixture to radiation thereby crosslinking the mixture. Also described is a silicone gel adhesive comprising a crosslinked material at least one non-functional polydiorganosiloxane, hydroxy-functional polydiorganosiloxane, or a mixture thereof; and an acrylic polymer comprising at least 50 wt.-% of polymerized units of alkyl (meth)acrylate monomers and a gel content of at least 20 wt.-%. Also described is a medical article or intermediate thereof, comprising a layer of the silicone gel adhesive described herein adhered to a substrate; and methods of adhering a medical article.

    Silicone copolymers, methods of making, and articles
    8.
    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.

Patent Agency Ranking