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    Compositions and Methods for Odor Control
    1.
    发明公开
    Compositions and Methods for Odor Control 审中-公开

    公开(公告)号：US20240196894A1

    公开(公告)日：2024-06-20

    申请号：US18434688

    申请日：2024-02-06

    申请人： Kraton Corporation

    发明人： Ali Alwattari ,  James D Smith ,  Bharadwaja Peddinti

    IPC分类号： A01N41/10 ,  A01N25/10 ,  A01N25/12 ,  A01N59/00

    CPC分类号： A01N41/10 ,  A01N25/10 ,  A01N25/12 ,  A01N59/00

    摘要： A deodorizing composition for reducing or suppressing odor from space or surface and method for same is provided. The deodorizing composition also provides antimicrobial protection while removing or suppressing odor. The method includes applying a deodorizing composition to a surface or into space affected by the odor due to microbes or chemical action. The deodorizing composition comprises a sulfonated polymer having an ion exchange capacity (IEC) of greater than 0.5 meq/g, and optionally a deodorizing agent selected from the group consisting of a) cage molecules, e.g., carcerands or macrocycles such as cyclodextrin, cucurbiturils, oxazoline, and calixarene; b) powder or solid odor absorbers such as sodium bicarbonate, hydrated silica (e.g., silicon dioxide), silica gel, perlite, bentonite or hectorite clay, zeolites, wood dust, and carbon black; c) benzoic acid and derivatives thereof; and d) deodorizing materials that have a Malodor Reduction Value (MORV) of at least 0.5.

    Styrenic Block Copolymers and Methods of Preparation Thereof
    5.
    发明公开
    Styrenic Block Copolymers and Methods of Preparation Thereof 审中-公开

    公开(公告)号：US20230265278A1

    公开(公告)日：2023-08-24

    申请号：US18172375

    申请日：2023-02-22

    申请人： Kraton Corporation

    发明人： Xavier D.D.J. Muyldermans ,  Julie Li

    IPC分类号： C08L53/02 ,  C08F8/04 ,  C08F12/08 ,  C08F36/06

    CPC分类号： C08L53/025 ,  C08F8/04 ,  C08F12/08 ,  C08F36/06 ,  C08L2207/04 ,  C08L2203/16

    摘要： A hydrogenated styrenic block copolymer (HSBC) is disclosed comprising, prior to hydrogenation, a polymer block A of at least one vinyl aromatic monomer, a polymer block B of at least one conjugated diene, and a copolymer block C of at least one vinyl aromatic monomer and 1,3-butadiene monomer. The HSBC has a total vinyl aromatic content of 15 to 60 wt. % and an aromatic blockiness index of 20 to 80%. The viscoelastic properties of HSBC show a value of a tan δ peak height of 0.7 to 2, a tan δ peak temperature of −40 to 25° C., and a temperature width value (in ° C.) at half the tan δ peak height of 17 to 40. The HSBC provides improved mechanical properties and can be used in preparation of adhesives and protective films applications.

    SULFONATED POLYMERS AND COMPOSITIONS THEREOF
    7.
    发明公开
    SULFONATED POLYMERS AND COMPOSITIONS THEREOF 审中-公开

    公开(公告)号：US20230242698A1

    公开(公告)日：2023-08-03

    申请号：US18161977

    申请日：2023-01-31

    申请人： Kraton Corporation

    发明人： Jiaqi Yan ,  Martine Dupont ,  Brett Neumann

    IPC分类号： C08F293/00 ,  C08J3/24 ,  C08F287/00

    CPC分类号： C08F293/00 ,  C08J3/24 ,  C08F287/00 ,  C08J2353/00 ,  C08J2351/00

    摘要： A composition is disclosed comprising a sulfonated styrenic block copolymer (SSBC) having an ion exchange capacity (IEC) of at least 0.5 meq/g; and at least one compound which reacts with the SSBC forming a cross-linked SSBC. The compound is selected from: (i) a cross-linking agent, (ii) a metal cation, and (iii) a non-sulfonated polymer. A film prepared from the composition containing the cross-linked SSBC has a toughness in wet state measured after 1 week of 1.2 to 8 MJ/m3; and a tensile stress in wet state measured after 1 week of 3.2 to 8 MPa, according to ASTM D412. The film can be used as a water 10 purification membrane or an antimicrobial protection layer.