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    Silicone copolymers, methods of making, and articles
    2.
    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.

    Silsesquioxane polymers, compositions, methods, and articles
    3.
    发明授权
    Silsesquioxane polymers, compositions, methods, and articles 有权

    公开(公告)号：US10889691B2

    公开(公告)日：2021-01-12

    申请号：US16640998

    申请日：2018-09-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jitendra S. Rathore ,  Chetan P. Jariwala ,  Lin Chen ,  Ramesh C. Kumar

    IPC: C09D183/08 ,  C08G77/26 ,  C08G77/18 ,  D06N3/12

    Abstract: A silsesquioxane polymer, composition, method, and article including such polymer, wherein the polymer includes a three-dimensional network of Formula (I): wherein: each R1 and R2 is independently a (C1-C4)alkyl; each L1 and L2 is independently in a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof; each R3 is independently a linear (C14-C100)alkyl; each R4 is independently a (C1-C30)alkyl, (C2-C30)heteroalkyl having at least one oxygen, sulfur, or —NH— group, or a (C1-C30)alkyl substituted with a fluoro, thiol, isocyanato, cyanato, hydroxyl, glycidoxy, or epoxy group; with the proviso that L1, L2, and R4 are selected such that each Si atom is directly bonded to an alkylene or an alkyl; m is an integer of at least 3; n is an integer of 0 or above; m+n is an integer of at least 3; each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and the silsesquioxane polymer is a solid at 25° C.

    SILSESQUIOXANE POLYMERS, COMPOSITIONS, AND ARTICLES
    4.
    发明申请
    SILSESQUIOXANE POLYMERS, COMPOSITIONS, AND ARTICLES 审中-公开

    公开(公告)号：US20200270457A1

    公开(公告)日：2020-08-27

    申请号：US16643727

    申请日：2018-09-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jitendra S. Rathore ,  Ramesh C. Kumar ,  Chetan P. Jariwala

    IPC: C08L83/06 ,  C08G77/14 ,  C08G77/26 ,  C08G77/28 ,  C09J7/20 ,  C09J7/38

    Abstract: A silsesquixane polymer, a composition including such silsesquixane polymer, and an article including such polymer or composition, wherein the composition includes a silsesquioxane polymer and a free siloxane; wherein the silsesquioxane polymer includes a three-dimensional network of Formula (I): wherein: each R1 and R2 is independently a (C1-C4)alkyl; each L1 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof; each R3 is independently a linear (C14-C100)alkyl; with the proviso that L1 is selected such that each Si atom is directly bonded to an alkylene or an alkyl; m is an integer of at least 2; n is an integer of at least 1; m+n is an integer of at least 10; each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and the silsesquioxane polymer is a solid at 25° C.

    GEL ADHESIVE COMPRISING CROSSLINKED BLEND OF POLYDIORGANOSILOXANE AND ACRYLIC POLYMER
    7.
    发明申请
    GEL ADHESIVE COMPRISING CROSSLINKED BLEND OF POLYDIORGANOSILOXANE AND ACRYLIC POLYMER 有权

    公开(公告)号：US20210009879A1

    公开(公告)日：2021-01-14

    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

    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.

    Silsesquioxane polymers, compositions, and articles
    8.
    发明授权
    Silsesquioxane polymers, compositions, and articles 有权

    公开(公告)号：US10858516B2

    公开(公告)日：2020-12-08

    申请号：US16643727

    申请日：2018-09-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jitendra S. Rathore ,  Ramesh C. Kumar ,  Chetan P. Jariwala

    IPC: C08L83/06 ,  C09J7/20 ,  C09J7/38 ,  C08G77/14 ,  C08G77/26 ,  C08G77/28

    Abstract: A silsesquixane polymer, a composition including such silsesquixane polymer, and an article including such polymer or composition, wherein the composition includes a silsesquioxane polymer and a free siloxane; wherein the silsesquioxane polymer includes a three-dimensional network of Formula (I): wherein: each R1 and R2 is independently a (C1-C4)alkyl; each L1 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof; each R3 is independently a linear (C14-C100)alkyl; with the proviso that L1 is selected such that each Si atom is directly bonded to an alkylene or an alkyl; m is an integer of at least 2; n is an integer of at least 1; m+n is an integer of at least 10; each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and the silsesquioxane polymer is a solid at 25° C.

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