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    Modified cellulose fibers
    1.
    发明授权
    Modified cellulose fibers 有权

    公开(公告)号：US10906993B2

    公开(公告)日：2021-02-02

    申请号：US15757700

    申请日：2016-09-05

    Applicant: KAO CORPORATION

    Inventor： Yutaka Yoshida ,  Shotaro Shibata ,  Yoshiaki Kumamoto ,  Takuma Tsuboi ,  Motoi Konishi

    IPC: C08B11/193 ,  C08L9/06 ,  C08L23/06 ,  C08L25/06 ,  C08L75/16 ,  C08L9/02 ,  C08L1/28 ,  C08L7/00 ,  C08L63/00 ,  C08L75/14

    Abstract: Modified cellulose fibers, wherein each of (A) one or more substituents selected from substituents represented by the following general formula (1) and substituents represented by the following general formula (2): —CH2—CH(OH)—R1 (1); —CH2—CH(OH)—CH2—(OA)n-O—R1 (2), wherein each R1 in the general formula (1) and the general formula (2) is independently a linear or branched alkyl group having 3 or more carbon atoms and 30 or less carbon atoms; n in the general formula (2) is a number of 0 or more and 50 or less; and A is a linear or branched, divalent saturated hydrocarbon group having 1 or more carbon atoms and 6 or less carbon atoms, and (B) a substituent represented by the following general formula (3): —CH2—CH(OH)—R2 (3), wherein R2 in the general formula (3) is an alkyl group having 1 or more carbon atoms and 2 or less carbon atoms, is independently bonded to cellulose fibers via an ether bond, wherein the modified cellulose fibers have a cellulose I crystal structure. The resin composition blended with the modified cellulose fibers of the present invention can be suitably used in various industrial applications such as daily sundries, household electric appliance parts, wrapping materials for household electric appliance parts and automobile parts.

    Rubber composition
    4.
    发明授权
    Rubber composition 有权

    公开(公告)号：US11136416B2

    公开(公告)日：2021-10-05

    申请号：US15757784

    申请日：2016-09-05

    Applicant: KAO CORPORATION

    Inventor： Yutaka Yoshida ,  Takuma Tsuboi ,  Shotaro Shibata ,  Yoshiaki Kumamoto ,  Motoi Konishi

    IPC: C08B11/193 ,  B60C1/00 ,  C08B11/08 ,  C08L9/02 ,  C08L1/28 ,  C08J3/00 ,  C08J5/06 ,  C08L9/06

    Abstract: A rubber composition containing a rubber and modified cellulose fibers, wherein one or more substituents selected from substituents represented by the following general formulas (1) and (2): —CH2—CH(OH)—R1 (1), —CH2—CH(OH)—CH2—(OA)n—O—R1 (2), wherein each R1 in the general formulas (1) and (2) is independently a linear or branched alkyl group having 3 or more carbon atoms and 30 or less carbon atoms; n in the general formula (2) is a number of 0 or more and 50 or less; and A is a linear or branched, divalent saturated hydrocarbon group having 1 or more carbon atoms and 6 or less carbon atoms are bonded to cellulose fibers via an ether bond, wherein the modified cellulose fibers have a cellulose I crystal structure. The rubber composition of the present invention can be suitably used for machine tool parts, household electric appliance parts, automobile parts, and the like.

    Modified cellulose fiber powder
    5.
    发明授权
    Modified cellulose fiber powder 有权

    公开(公告)号：US12209146B2

    公开(公告)日：2025-01-28

    申请号：US17311418

    申请日：2019-12-26

    Applicant: KAO CORPORATION

    Inventor： Takuma Tsuboi ,  Takuya Morioka ,  Junnosuke Saito

    IPC: C08B15/04 ,  C08J3/12 ,  C08L27/06

    Abstract: A powder of modified cellulose fibers has an average fiber length of 1 μm or more and 500 μm or less, wherein the modified cellulose fibers are made from anionically modified cellulose fibers introduced at an anionic group with a modifying group. A dispersion contains a powder of modified cellulose fibers as defined above and a medium, wherein the powder of modified cellulose fibers is dispersed in the medium. A resin composition contains a powder of modified cellulose fibers as defined above and a resin, wherein the powder of modified cellulose fibers and the resin are blended. A resin molded article is obtained by molding a resin composition as defined above. A powder of cellulose fibers having excellent dispersibility in a solvent, which can be obtained by an inexpensive process, and a method for producing the same can be provided.

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