D21B1/04

Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers

Various embodiments of the present invention relate to surface enhanced pulp fibers, various products incorporating surface enhanced pulp fibers, and methods and systems for producing surface enhanced pulp fibers. Various embodiments of surface enhanced pulp fibers have significantly increased surface areas compared to conventional refined fibers while advantageously minimizing reductions in length following refinement. The surface enhanced pulp fibers can be incorporated into a number of products that might benefit from such properties including, for example, paper products, paperboard products, fiber cement boards, fiber reinforced plastics, fluff pulps, hydrogels, cellulose acetate products, and carboxymethyl cellulose products. In some embodiments, a plurality of surface enhanced pulp fibers have a length weighted average fiber length of at least about 0.3 millimeters and an average hydrodynamic specific surface area of at least about 10 square meters per gram, wherein the number of surface enhanced pulp fibers is at least 12,000 fibers/milligram on an oven-dry basis.

Purified medicinal cannabis non-hemp hurd fiber, and articles containing the same
12188180 · 2025-01-07 ·

Provided are purified ozonated medicinal cannabis non-hemp hurd fiber, and refined ozonated medicinal cannabis non-hemp hurd fiber, and compositions containing the ozonated medicinal cannabis non-hemp hurd fiber or refined ozonated medicinal cannabis non-hemp hurd fiber, the compositions including packaging products, molded pulp cartons such as egg cartons, smoking papers, paper packaging materials, single ply or multi-ply paperboard, absorbent paper products, and ink receptive papers.

Purified medicinal cannabis non-hemp hurd fiber, and articles containing the same
12188180 · 2025-01-07 ·

Provided are purified ozonated medicinal cannabis non-hemp hurd fiber, and refined ozonated medicinal cannabis non-hemp hurd fiber, and compositions containing the ozonated medicinal cannabis non-hemp hurd fiber or refined ozonated medicinal cannabis non-hemp hurd fiber, the compositions including packaging products, molded pulp cartons such as egg cartons, smoking papers, paper packaging materials, single ply or multi-ply paperboard, absorbent paper products, and ink receptive papers.

COMPOSITE PAPER PULP COMPOSITION AND METHOD OF MAKING
20170145634 · 2017-05-25 ·

Composite pulp compositions for making paper are disclosed that include agricultural residue fibers, softwood fibers, and water. The composite pulp compositions are made by blending an agricultural residue with softwood chips and simultaneously and mechanically pulping the mixture of agricultural residue and softwood in one or more TMP and/or RMP operations. The agricultural residue is present in an amount in a range from about 1% to about 30% of the oven dry weight of the composite pulp composition. Co-pulping the agricultural residue with the softwood improves the tear strength properties of the composite pulp composition. Blended pulp compositions are also disclosed that include a chemical pulp or chemi-mechanical pulp blended with the composite pulp compositions having agricultural residue fibers and softwood fibers. Paper products made from the composite pulp compositions and blended pulp compositions are also disclosed herein.

COMPOSITE PAPER PULP COMPOSITION AND METHOD OF MAKING
20170145634 · 2017-05-25 ·

Composite pulp compositions for making paper are disclosed that include agricultural residue fibers, softwood fibers, and water. The composite pulp compositions are made by blending an agricultural residue with softwood chips and simultaneously and mechanically pulping the mixture of agricultural residue and softwood in one or more TMP and/or RMP operations. The agricultural residue is present in an amount in a range from about 1% to about 30% of the oven dry weight of the composite pulp composition. Co-pulping the agricultural residue with the softwood improves the tear strength properties of the composite pulp composition. Blended pulp compositions are also disclosed that include a chemical pulp or chemi-mechanical pulp blended with the composite pulp compositions having agricultural residue fibers and softwood fibers. Paper products made from the composite pulp compositions and blended pulp compositions are also disclosed herein.

Conversion of a low viscosity ligno-cellulosic biomass slurry into polyols

A process for producing polyols from a low viscosity slurry comprising a thermally treated ligno-cellulosic biomass which has been subjected to a fiber shives reduction step is provided. Specifically, a continuous process for catalyzing the formation of polyol products, such as ethylene glycol and propylene glycol, from the low viscosity slurry is provided.

Conversion of a low viscosity ligno-cellulosic biomass slurry into polyols

A process for producing polyols from a low viscosity slurry comprising a thermally treated ligno-cellulosic biomass which has been subjected to a fiber shives reduction step is provided. Specifically, a continuous process for catalyzing the formation of polyol products, such as ethylene glycol and propylene glycol, from the low viscosity slurry is provided.

PURIFIED MEDICINAL CANNABIS NON-HEMP HURD FIBER, AND ARTICLES CONTAINING THE SAME
20250137199 · 2025-05-01 ·

An ozonated medicinal cannabis non-hemp hurd fiber pulp from purified hurd fiber irradiated with natural sunlight or synthetic sunlight or a combination thereof at an irradiance of about 10 W/m2 to about 1,000 W/m2 for a period of time from about 1 to 200 hours, wherein the purified hurd fiber is from cannabis grown at a density lower than used for growing hemp. Also provided are smoking papers containing the irradiated purified hurd fiber, or containing alkaline-treated and ozone-treated hurd fiber from cannabis grown at a density lower than used for growing hemp, wherein the hurd fiber is substantially free of bast fiber and has an average percentage of kinked fibers from about 13% to about 16%, or a coarseness from about 0.195 to about 0.285 mg/m, in combination with a fiber selected from among cannabis bast fiber, wood fiber, or a combination thereof.

PURIFIED MEDICINAL CANNABIS NON-HEMP HURD FIBER, AND ARTICLES CONTAINING THE SAME
20250137199 · 2025-05-01 ·

An ozonated medicinal cannabis non-hemp hurd fiber pulp from purified hurd fiber irradiated with natural sunlight or synthetic sunlight or a combination thereof at an irradiance of about 10 W/m2 to about 1,000 W/m2 for a period of time from about 1 to 200 hours, wherein the purified hurd fiber is from cannabis grown at a density lower than used for growing hemp. Also provided are smoking papers containing the irradiated purified hurd fiber, or containing alkaline-treated and ozone-treated hurd fiber from cannabis grown at a density lower than used for growing hemp, wherein the hurd fiber is substantially free of bast fiber and has an average percentage of kinked fibers from about 13% to about 16%, or a coarseness from about 0.195 to about 0.285 mg/m, in combination with a fiber selected from among cannabis bast fiber, wood fiber, or a combination thereof.

PRODUCTION OF CELLULOSE FROM COTTON OR COTTON BLENDS
20250154719 · 2025-05-15 ·

A method for the production of a cellulosic polymer with a cellulose content of at least 92% from textile waste material, wherein an educt of a mixture of cotton and PET with a fire length of at most 1 mm is treated in a reactor with subcritical water at a temperature of 130-200 C., particularly preferably between 160 C.-200 C. and a pressure in a range of between 1-25 bar, preferably between 1-10 bar for about 1-120 mins and wherein a cellulose polymer with an average degree of polymerisation of between 450-650 is formed.