Modified lignin manufacturing method, modified lignin, and modified lignin-including resin composition material

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.

1 . 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  31 P-NMR, of 2.5 or more, and   an existence ratio of an aliphatic hydroxy group with respect to a total of existence ratios of the aliphatic hydroxy group and an aromatic hydroxy group, obtained from integrated values measured by  31 P-NMR, of less than 20%.   
     
     
         2 . A modified lignin-containing material comprising
 one or more modified lignin of a modified lignin produced by a method for producing a modified lignin, the method comprising reacting one or more kind of a second generation ethanol fermentation residue and a second generation ethanol saccharification residue, with a phenol compound wherein the one or more kind of a second generation ethanol fermentation residue and a second generation ethanol saccharification residue are not an isolated lignin, wherein the reaction is performed at a reaction temperature of more than 140° C. and 350° C. or less, and,   the 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  31 P-NMR, of 2.5 or more, and an existence ratio of an aliphatic hydroxy group with respect to a total of existence ratios of the aliphatic hydroxy group and an aromatic hydroxy group, obtained from integrated values measured by  31 P-NMR, of less than 20%.   
     
     
         3 . A modified lignin-containing resin composition material comprising
 one or more modified lignin of a modified lignin produced by a method for producing a modified lignin, the method comprising reacting one or more kind of a second generation ethanol fermentation residue and a second generation ethanol saccharification residue, with a phenol compound wherein the one or more kind of a second generation ethanol fermentation residue and a second generation ethanol saccharification residue are not an isolated lignin, wherein the reaction is performed at a reaction temperature of more than 140° C. and 350° C. or less, and,   the 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  31 P-NMR, of 2.5 or more, and an existence ratio of an aliphatic hydroxy group with respect to a total of existence ratios of the aliphatic hydroxy group and an aromatic hydroxy group, obtained from integrated values measured by  31 P-NMR, of less than 20%.   
     
     
         4 . The modified lignin-containing resin composition material according to  claim 3 , the modified lignin-containing resin composition material further comprises one or more kind of a thermosetting resin and an aldehyde compound. 
     
     
         5 . A molded article comprising one or more of the modified lignin-containing resin composition materials according to  claim 3 .