A thermosetting resin composition according to the present invention contains: purified lignin obtained by treating a herbaceous biomass as a raw material under the following conditions in a first solvent that is a mixed solvent of water and at least one type of alcohol selected from aliphatic alcohols having 4 to 8 carbon atoms, subsequently removing the alcohol from the alcohol phase that is separated at the temperature at which the first solvent separates into two phases to give lignin, adding a second solvent that is an organic solvent alone or a mixed solvent of the organic solvent and water to the resultant lignin, and removing the second solvent from the solution in which the lignin is dissolved in the second solvent; and a lignin-reactive compound that has a functional group capable of reacting with the purified lignin. Condition A: the concentration of the raw material to be charged into the mixed solvent is 1% by mass or more and 50% by mass or less. Condition B: the treatment temperature is 100° C. or higher and 350° C. or lower. Condition C: the treatment time is 0.1 hours or more and 10 hours or less.

A thermosetting resin composition according to the present invention contains: purified lignin obtained by treating a herbaceous biomass as a raw material under the following conditions in a first solvent that is a mixed solvent of water and at least one type of alcohol selected from aliphatic alcohols having 4 to 8 carbon atoms, subsequently removing the alcohol from the alcohol phase that is separated at the temperature at which the first solvent separates into two phases to give lignin, adding a second solvent that is an organic solvent alone or a mixed solvent of the organic solvent and water to the resultant lignin, and removing the second solvent from the solution in which the lignin is dissolved in the second solvent; and a lignin-reactive compound that has a functional group capable of reacting with the purified lignin. Condition A: the concentration of the raw material to be charged into the mixed solvent is 1% by mass or more and 50% by mass or less. Condition B: the treatment temperature is 100° C. or higher and 350° C. or lower. Condition C: the treatment time is 0.1 hours or more and 10 hours or less.

Disclosed are methods for preparing and collecting a polyaromatic compound. Also disclosed are products comprising a polyaromatic compound.

Disclosed are methods for preparing and collecting a polyaromatic compound. Also disclosed are products comprising a polyaromatic compound.

Cellulose-containing compositions and method of making same are disclosed. The compositions comprise a cellulose product comprising a type-I cellulose, a type-II cellulose, amorphous cellulose, or a combination thereof. Further, methods are disclosed for making these compositions and for further hydrolyzing these compositions. Additionally, uses for the cellulose-containing compositions are disclosed.

Cellulose-containing compositions and method of making same are disclosed. The compositions comprise a cellulose product comprising a type-I cellulose, a type-II cellulose, amorphous cellulose, or a combination thereof. Further, methods are disclosed for making these compositions and for further hydrolyzing these compositions. Additionally, uses for the cellulose-containing compositions are disclosed.

A process for recovering carbonized lignin having a defined grain size distribution from a lignin-containing liquid is provided. The lignin-containing liquid is subjected to a hydrothermal carbonization to convert the lignin into a carbonized lignin and the carbonized lignin is separated from the liquid containing the carbonized lignin. The lignin-containing liquid is subjected to a hydrothermal carbonization at temperatures in the range from about 150° C. to about 280° C. and by adapting the H+ ion concentration in the lignin-containing liquid before and/or during the hydrothermal carbonization the grain size distribution of the carbonized lignin is adjusted.

A rubber compound for making a pneumatic tyre structural component comprising a cross-linkable unsaturated-chain polymer base, a reinforcing filler, a thermosetting resin and a vulcanization system. The thermosetting resin comprises functionalized lignin with —OR groups wherein R is an alkyne group with a number of carbon atoms of between (3) and (18).

A rubber compound for making a pneumatic tyre structural component comprising a cross-linkable unsaturated-chain polymer base, a reinforcing filler, a thermosetting resin and a vulcanization system. The thermosetting resin comprises functionalized lignin with —OR groups wherein R is an alkyne group with a number of carbon atoms of between (3) and (18).

A biomass upgrading process comprises a steam-cracking step for producing a granulated combustible product, and, prior to the granulation step, a step of mixing an intermediate pulverulent product resulting from the steam-cracking of the biomass and a pulverulent material having a high lignin content.