LIGNIN COMPOSITION AND USE THEREOF
    1.
    发明公开

    公开(公告)号:US20240010798A1

    公开(公告)日:2024-01-11

    申请号:US18252445

    申请日:2021-12-21

    Abstract: A lignin composition containing two or more compounds represented by the following formula (1), where the total content of the compounds is 0.06% by mass or more:




    where in the formula, Ra is a hydrogen atom, a methyl group, an ethyl group, a furyl group, a hydroxymethylfuryl group, a hydroxyphenyl group, a hydroxymethoxyphenol group, or a hydroxydimethoxyphenol group; Rc1 and Rc2 are independently a hydroxyl group, an alkoxy group, an amino group, or a thiol group; R11 to R20 are independently a hydrogen atom, a hydroxyl group, a hydrocarbon group including 1 to 15 carbon atoms, a hydrocarbon ether group including 1 to 15 carbon atoms, or a group containing a carbonyl group.

    THERMOSETTING COMPOSITION, POLYURETHANE RESIN COMPOSITION AND POLYURETHANE MOLDED BODY

    公开(公告)号:US20240239947A1

    公开(公告)日:2024-07-18

    申请号:US18563399

    申请日:2022-05-23

    Abstract: A thermosetting composition comprising a lignin component comprising two or more kinds of compounds represented by the following formula (1) and a polyol, wherein the amount of the lignin component is 0.10% by mass or more, and the total content of the compound is 0.06% by mass or more, based on the total amount of the lignin component:




    wherein in the formula, Ra is a hydrogen atom, a methyl group, an ethyl group, a furyl group, a hydroxymethylfuryl group, a hydroxyphenyl group, a hydroxymethoxyphenyl group or a hydroxydimethoxyphenyl group; Rc1 and Rc2 independently represent a hydroxyl group, an alkoxy group, an amino group or thiol group; R11 to R20 are independently a hydrogen atom, a hydroxyl group, a hydrocarbon group having 1 to 15 carbon atoms, a hydrocarbon ether group having 1 to 15 carbon atoms, or a group including a carbonyl group; each of R11 to R20 may be the same as or different from each other; provided that at least one of R11 to R15 is a hydrogen atom, and at least one of R16 to R20 is a hydrogen atom.

    MODIFIED LIGNIN MANUFACTURING METHOD, MODIFIED LIGNIN, AND MODIFIED LIGNIN-INCLUDING RESIN COMPOSITION MATERIAL

    公开(公告)号:US20220348725A1

    公开(公告)日:2022-11-03

    申请号:US17864134

    申请日:2022-07-13

    Abstract: A method for producing a modified lignin, including reacting one or more kind of a second generation ethanol fermentation residue and a second generation ethanol saccharification residue, with a phenol compound, a modified lignin having a ratio ((2H+G)/S) of a total of twice of a relative existence ratio H (%) of an H-type skeleton and a relative existence ratio G (%) of a G-type skeleton with respect to a relative existence ratio S (%) of an S-type skeleton, obtained from integrated values measured by 31P-NMR, of 2.5 or more, and an existence ratio of an aliphatic hydroxy group obtained by the same method of less than 20%, and a modified lignin-containing resin composition material.

    MODIFIED LIGNIN MANUFACTURING METHOD, MODIFIED LIGNIN, AND MODIFIED LIGNIN-INCLUDING RESIN COMPOSITION MATERIAL

    公开(公告)号:US20200377672A1

    公开(公告)日:2020-12-03

    申请号:US16636600

    申请日:2018-08-10

    Abstract: A method for producing a modified lignin, including reacting one or more kind of a second generation ethanol fermentation residue and a second generation ethanol saccharification residue, with a phenol compound, a modified lignin having a ratio ((2H+G)/S) of a total of twice of a relative existence ratio H (%) of an H-type skeleton and a relative existence ratio G (%) of a G-type skeleton with respect to a relative existence ratio S (%) of an S-type skeleton, obtained from integrated values measured by 31P-NMR, of 2.5 or more, and an existence ratio of an aliphatic hydroxy group obtained by the same method of less than 20%, and a modified lignin-containing resin composition material.

    METHOD FOR PRODUCING PURIFIED LIGNIN, PURIFIED LIGNIN, RESIN COMPOSITION AND MOLDED BODY

    公开(公告)号:US20180215878A1

    公开(公告)日:2018-08-02

    申请号:US15762996

    申请日:2016-09-23

    CPC classification number: C08H6/00 C08G8/20 C08H8/00 C08L97/005 C08L101/00

    Abstract: Provided is a method of producing a purified lignin, including: treating a plant biomass in a first solvent mixture formed of water and a first organic solvent under specific conditions; subjecting a solid fraction insoluble in a first solution mixture and the first solution mixture to solid-liquid separation after the treatment; mixing the first solution mixture from which the insoluble solid fraction has been separated, and a second organic solvent excluding the first organic solvent and having a dipole moment of 0.25 d or less to provide a second solution mixture; and subjecting a solid fraction insoluble in the second solution mixture to solid-liquid separation to extract the purified lignin in a liquid phase of the second solution mixture.

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