C08L97/02

Biopolymer and isocyanate based binder and composite materials

A binder has at least one isocyanate and at least one biopolymer mixed with water. The biopolymer may be a biopolymer nanoparticle or cooked and chemically modified starch. Optionally, the binder may also include urea. The biopolymer and water are mixed, and the isocyanate is added to the mixture. The binder may have a viscosity that is suitable for being sprayed on a substrate to make a composite material, for example a viscosity of 700 cP or less or 500 cP or less at 40° C. The substrate may be wood, another lignocellulosic material, or synthetic or natural fibers. In particular examples, the binder is used to make no added formaldehyde wood composites including particle board and fiberboard. Alternatively, the binder may have a higher viscosity and be used to make plywood.

Biopolymer and isocyanate based binder and composite materials

A binder has at least one isocyanate and at least one biopolymer mixed with water. The biopolymer may be a biopolymer nanoparticle or cooked and chemically modified starch. Optionally, the binder may also include urea. The biopolymer and water are mixed, and the isocyanate is added to the mixture. The binder may have a viscosity that is suitable for being sprayed on a substrate to make a composite material, for example a viscosity of 700 cP or less or 500 cP or less at 40° C. The substrate may be wood, another lignocellulosic material, or synthetic or natural fibers. In particular examples, the binder is used to make no added formaldehyde wood composites including particle board and fiberboard. Alternatively, the binder may have a higher viscosity and be used to make plywood.

Biopolymer and isocyanate based binder and composite materials

A binder has at least one isocyanate and at least one biopolymer mixed with water. The biopolymer may be a biopolymer nanoparticle or cooked and chemically modified starch. Optionally, the binder may also include urea. The biopolymer and water are mixed, and the isocyanate is added to the mixture. The binder may have a viscosity that is suitable for being sprayed on a substrate to make a composite material, for example a viscosity of 700 cP or less or 500 cP or less at 40° C. The substrate may be wood, another lignocellulosic material, or synthetic or natural fibers. In particular examples, the binder is used to make no added formaldehyde wood composites including particle board and fiberboard. Alternatively, the binder may have a higher viscosity and be used to make plywood.

Composite materials containing hemp and nanocellulose
11524921 · 2022-12-13 · ·

Disclosed is a new composite material comprising nanocellulose and hemp or a hemp-derived component, such as pure hemp, hemp bast fibers, hemp inner fibers, hemp shives, hemp leaves, hemp seeds, or ground hemp. The nanocellulose may be hydrophobic or hydrophilic, and may include cellulose nanocrystals, cellulose nanofibrils, cellulose microfibrils, or a combination thereof. This invention provides construction blocks or panels; engineered parts; fire-resistant objects; coatings; containers; textile compositions; and fabric materials, for example. The composite material may also include one or more additives to modify mechanical, thermal, chemical, and/or electrical properties. The addition of nanocellulose can improve the mechanical properties of hemp-containing concrete mixtures to improve compressive strength for construction purposes.

MICROFIBRILLATED CELLULOSE-LOADED FOAM, METHOD OF PRODUCING SUCH FOAM AND USE OF SUCH A FOAM

A microfibrillated cellulose-loaded foam is indicated, comprising microfibrillated cellulose, at least one thickening agent and/or at least one adhesive biopolymer. Furthermore, a method for producing such a microfibrillated cellulose-loaded foam and a use of such a foam are provided.

COMPOSITE MATERIAL

The invention concerns a thermoplastic composite material having a component A, which is a continuous matrix based on a homogeneous polymer mixture, and component B, which includes solid particles and/or fibers. Furthermore, the invention relates to a method for manufacturing a thermoplastic composite material as well as use thereof.

COMPOSITE MATERIAL

The invention concerns a thermoplastic composite material having a component A, which is a continuous matrix based on a homogeneous polymer mixture, and component B, which includes solid particles and/or fibers. Furthermore, the invention relates to a method for manufacturing a thermoplastic composite material as well as use thereof.

LIGNOCELLULOSIC COMPOSITE FORMED BY A FIRST SOURCE FROM MAIZE PLANT WASTE WITH CELLULOSE FIBRES FROM A SECOND SOURCE AND PRODUCTION METHOD

Lignocellulosic composite formed by a mix of fibers coming from a first source of maize harvest waste and the procedure to obtain it, which consists of at least part of the stalk and leaves (husk) in a proportion by weight of 65% to 90% of the total fiber weight, mixed with 35% to 10% of the total weight of fibers from a second source based on annual plant species waste, with a width, lumen and thickness lower than those of the fiber from the first source. The first source of fibers have a high cationic charge, the fibers and fines produced being contained in a paste by the mechanical process of the maize coming from a first source of fibers with the fibers with a stronger tensile coming from the second source of fibers, forming self-linkages, establishing hydrogen-bridge bonds providing for fibers union interaction with fibers with greater mechanic strength of the second source of fibers.

MOLDING RESIN MATERIAL AND METHOD FOR MANUFACTURING THE SAME
20220388216 · 2022-12-08 ·

The subject of the present invention is to provide a resin material in which woody biomass and a thermoplastic resin are uniformly mixed, and which is easy to mold. The present invention provides a molding resin material containing a pulverized product from a woody biomass-derived torrefied product and a thermoplastic resin.

MOLDING RESIN MATERIAL AND METHOD FOR MANUFACTURING THE SAME
20220388216 · 2022-12-08 ·

The subject of the present invention is to provide a resin material in which woody biomass and a thermoplastic resin are uniformly mixed, and which is easy to mold. The present invention provides a molding resin material containing a pulverized product from a woody biomass-derived torrefied product and a thermoplastic resin.