The present invention is related to a new method to produce natural water-based glues made of two components, designed to glue lignocellulosic surfaces, mainly cork and wood. The mentioned process comprises the extraction of the aqueous phase of a mixture resulting from liquefying cork dust and/or cork granules, process that is commonly referred to as depolimerization process of cork; evaporation of the aqueous phase, therefore obtaining a first component consisting of a gel composed by the soluble components of the liquefying mixture; mixing and homogenizing of this gel with the second component that consists of a curing aliphatic compound; and, optionally, addition and mixture to cork dust to the previously mentioned mix.

Underwater adhesive compositions comprising a zein and a tannic acid, alone or further in combination with FeCl.sub.3, an inorganic filler, a natural polymer, or any combination thereof; and a method of making them.

Underwater adhesive compositions comprising a zein and a tannic acid, alone or further in combination with FeCl.sub.3, an inorganic filler, a natural polymer, or any combination thereof; and a method of making them.

Distiller's Grain (DG) based bio-adhesives consisting of DG biomass, crosslinking agents, and fillers are described as substitutes for formaldehyde based wood glue for making wood panels. Algal bio-adhesives consisting of algal biomass, crosslinking agents, and fillers are described as substitutes for formaldehyde based glue for making wood panels. Processes for preparing such DG based bio-adhesives and algal bio-adhesives are provided, comprising the steps of: combining DG biomass or algal material with a cross-linking agent and inorganic fillers to form a blend; micronisation or homogenisation of the blend to obtain powdery material; and mixing the powdery material with additional water to form a bio-adhesive.

Distiller's Grain (DG) based bio-adhesives consisting of DG biomass, crosslinking agents, and fillers are described as substitutes for formaldehyde based wood glue for making wood panels. Algal bio-adhesives consisting of algal biomass, crosslinking agents, and fillers are described as substitutes for formaldehyde based glue for making wood panels. Processes for preparing such DG based bio-adhesives and algal bio-adhesives are provided, comprising the steps of: combining DG biomass or algal material with a cross-linking agent and inorganic fillers to form a blend; micronisation or homogenisation of the blend to obtain powdery material; and mixing the powdery material with additional water to form a bio-adhesive.

One-part thermosetting binder compositions are described that may include soy protein, a first crosslinking compound, and a second crosslinking compound different from the first crosslinking compound. Upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder. Also describe are fiber-containing products that include a plurality of fibers and a formaldehyde-free binder. The formaldehyde-free binder is formed from a one-part, thermosetting binder composition that includes soy protein, a first crosslinking compound, and a second crosslinking compound different from the first crosslinking compound. Upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder.

One-part thermosetting binder compositions are described that may include soy protein, a first crosslinking compound, and a second crosslinking compound different from the first crosslinking compound. Upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder. Also describe are fiber-containing products that include a plurality of fibers and a formaldehyde-free binder. The formaldehyde-free binder is formed from a one-part, thermosetting binder composition that includes soy protein, a first crosslinking compound, and a second crosslinking compound different from the first crosslinking compound. Upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder.

The invention provides a method for preparing a binder precursor, the method comprising the steps of: i) mixing (A) fungi or glucan and (B) starch with an alkaline agent in the presence of an aqueous solvent system to form an alkaline composition; ii) mixing the alkaline composition with an acidic agent to form a mixture; and iii) drying the mixture and forming a powder therefrom, so as to form a powdered binder precursor.

The invention provides a method for preparing a binder precursor, the method comprising the steps of: i) mixing (A) fungi or glucan and (B) starch with an alkaline agent in the presence of an aqueous solvent system to form an alkaline composition; ii) mixing the alkaline composition with an acidic agent to form a mixture; and iii) drying the mixture and forming a powder therefrom, so as to form a powdered binder precursor.

The invention relates to an adhesive composition comprising: ground pea seeds comprising between 5 wt % and 40 wt % of crude proteins on the total weight of the ground pea seeds, an amine-based azetidinium-functional cross-linker, and water.

The invention also relates to an article and its preparation process, use of the adhesive composition according to the invention, and use of ground pea seeds.