Adhesive compositions containing (1) one or two adhesive compositions produced from the fruit but not the seeds of Osage orange fruit and (2) a known adhesive. The one or two adhesive compositions produced from the fruit but not the seeds of Osage orange fruit are produced by a process involving drying the cut peel and mesocarp but not the seeds of the fruit of Osage orange to produce dried peel and mesocarp, milling the dried peel and mesocarp to produce milled peel and mesocarp, extracting the milled peel and mesocarp with an organic solvent (e.g., hexane) or a polar aprotic solvent (e.g., ethyl acetate) to produce the first adhesive composition, and optionally wherein the amorphous layer between the polar aprotic solvent and the milled peel and mesocarp is the second adhesive composition.

The invention is directed to an aqueous adhesive composition for lignocellulosic materials.

The present invention is directed to a method for producing oxidized lignins.

The present invention relates to a method for increasing the reactivity of lignin, wherein the method comprises the following steps: a) forming, under heating at a temperature of 30-70° C., an aqueous dispersion comprising alkali and lignin, wherein the alkali comprises a hydroxide of an alkali metal; and b) heating the dispersion formed in step a) at a temperature of 50-95° C. for producing alkalated lignin.

The present invention relates to a new aqueous curable binder composition comprising a polyphenolic macromolecular compound which bears a multitude of catechol radicals (dihydroxybenzene), preferably lignosulfonate salts and condensed tannins and mixtures thereof, and a polyamine functional compound comprising primary and/or secondary and/or tertiary and/or quaternary amine functional groups, suitable for bonding particulate matter, such as fibers, more particularly mineral wool fibers, or particles, such as wood particles.

Method of forming functionalized colloidal lignin particles, comprising the step of providing lignin in a dissolved form, aldehyde functionalizing lignin, forming a colloidal dispersion of lignin, partially removing organic solvents and heat-curing the dispersion. The concentrated colloidal dispersion is dried by spray drying. The invention can be used in applications where the functioned and colloidal nature of lignin will afford an advantage over bulk lignin.

The invention relates to a method for treating lignin, wherein the method comprises the following steps: a) dissolving lignin into an aqueous composition, which contains a compound selected from the class of phenols, while keeping the temperature of the composition at 0-60° C.; and b) allowing the composition to react while keeping the temperature of the composition at 60-100° C. and the pH of the composition at a pH value of 6-14. The invention relates further to a method for producing a binder composition and to different applications thereof.

The invention relates to a binder for cellulose-containing materials which contains a) hydroxyaldehyde, b) a protein-containing component of animal origin and c) a component comprising phenolic oligomers. The invention likewise relates to the use of the binder according to the invention for producing a composite material, to a process for producing a composite material and to a composite material obtainable by the process according to the invention.

The invention relates to an adhesion-promoting composition for a textile material, comprising a salt of lignosulphonate, an epoxy hardener for said salt, comprising at least two epoxide units, and an elastomer latex. The lignosulphonate salt can be a lignosulphonate of sodium, potassium, magnesium, ammonium or calcium. The invention also relates to the use of such a composition for providing a reinforcing textile material with adhesive properties, in relation to a rubber material, to a reinforcing textile material, particularly a textile structure, thread or cord, at least partially coated and/or impregnated with said composition, and to a part consisting of rubber or comprising a rubber material, in which the rubber comprises at least one reinforcing textile material, on the surface thereof and/or integrated into the rubber material.

The invention relates to a method for treating lignin, wherein the method comprises the following steps: a) dissolving lignin into an aqueous composition, which contains a compound selected from the class of phenols, while keeping the temperature of the composition at 0-6° C.; and b) allowing the composition to react while keeping the temperature of the composition at 60-100° C. and the pH of the composition at a pH value of 6-14. The invention relates further to a method for producing a binder composition and to different applications thereof.