NOVEL HYDROXYALKYL METHYLCELLULOSE AND ITS USE

    公开(公告)号:US20240360250A1

    公开(公告)日:2024-10-31

    申请号:US18686630

    申请日:2022-08-18

    CPC classification number: C08B11/193 A23L29/262 C08B11/08

    Abstract: A hydroxyalkyl methylcellulose wherein the substitution pattern of the hydroxyalkyl groups of the anhydroglucose units of the hydroxyalkyl methylcellulose is such that the s6(hydroxyalkyl) is 0.01-0.1, wherein s6 is the molar fraction of the anhydroglucose units of the hydroxyalkyl methylcellulose wherein the hydroxy groups in the 6 position of the anhydroglucose unit are substituted by hydroxyalkyl, and wherein the substitution pattern of the methoxyl groups of the anhydroglucose units of the hydroxyalkyl methylcellulose is such that the s23/s26(methyl) ratio is from 0.36 to 0.60, wherein s23 is the molar fraction of anhydroglucose units wherein only the hydroxy groups in the 2 and 3 positions of the anhydroglucose unit are substituted with methyl, and wherein s26 is the molar fraction of anhydroglucose units wherein only the hydroxy groups in the 2 and 6 positions of the anhydroglucose units are substituted with methyl.

    MODIFIED CELLULOSE FIBER
    6.
    发明申请

    公开(公告)号:US20190185587A1

    公开(公告)日:2019-06-20

    申请号:US15757791

    申请日:2016-09-05

    Abstract: Modified cellulose fibers having an average fiber size of 5 μm or more, 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 modified cellulose fibers of the present invention have high dispersibility in the resin and can exhibit an effect of increasing strength, so that the modified cellulose fibers are suitable as various fillers, and the like, and the resin composition blended with the modified cellulose fibers can be suitably used in daily sundries, household electric appliance parts, wrapping materials for household electric appliance parts, automobile parts, resins for three-dimensional modeling, and the like.

    MODIFIED CELLULOSE FIBERS
    8.
    发明申请

    公开(公告)号:US20190010253A1

    公开(公告)日:2019-01-10

    申请号:US15757747

    申请日:2016-09-05

    Abstract: Modified cellulose fibers having an average fiber size of 1 nm or more and 500 nm or less, 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 a viscosity at 25° C. of a dispersion having a concentration of 0.2% by mass, obtained by a finely dispersing treatment in any one of DMF, MEK, and toluene is 15 mPa·s or more, and wherein the modified cellulose fibers have a cellulose I crystal structure. The modified cellulose fibers of the present invention have high dispersibility in the resin and can exhibit an effect of increasing strength, so that the modified cellulose fibers are suitable as various fillers, and the like.

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