Processes are provided for stabilization of particulate materials, including processes that make use of cellulose fibrils that are dimensioned to provide a degree of stabilization for particulates that include particles in a selected size range. In select embodiments, a relatively small volume of nanofibrillated cellulose provide fibres of an appropriate length to effect a significant degree of stabilization for a range of unconsolidated particulate materials that comprise mineralizations on a micron to millimetre scale.
Repair mortar and methods of preparing repair mortar are provided. The repair mortar comprise a cement binder, fine aggregate and cellulose fibrils. In some embodiments, the cellulose fibrils are dispersed uniformly throughout the repair mortar. In some embodiments, the cellulose fibrils comprise nanofibrillated cellulose and/or microfibrillated cellulose. In some embodiments, the cellulose fibrils comprise an aspect ratio of between about 20 to about 500. The methods comprise mixing a cement binder, fine aggregate with water/chemical admixture to provide a cementitious material of good consistency, mixing cellulose fibrils with water to provide a cellulose fibril slurry, and mixing the cellulose fibril slurry with the workable cementitious material. In some embodiments, the cellulose fibrils are dispersed uniformly throughout the workable cementitious material.
C04B 20/00 - Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups and characterised by shape or grain distributionTreatment of materials according to more than one of the groups specially adapted to enhance their filling properties in mortars, concrete or artificial stoneExpanding or defibrillating materials
Processes are provided for stabilization of particulate materials, including processes that make use of cellulose fibrils that are dimensioned to provide a degree of stabilization for particulates that include particles in a selected size range. In select embodiments, a relatively small volume of nanofibrillated cellulose provide fibres of an appropriate length to effect a significant degree of stabilization for a range of unconsolidated particulate materials that comprise mineralizations on a micron to millimetre scale.
C09K 17/16 - Soil-conditioning materials or soil-stabilising materials containing organic compounds only applied in a physical form other than a solution or a grout, e.g. as platelets or granules
C09K 17/32 - PrepolymersMacromolecular compounds of natural origin, e.g. cellulosic materials
7.
FIBRILLATED CELLULOSE CONSOLIDATION OF MINERALIZED PARTICULATES
Processes are provided for stabilization of particulate materials, including processes that make use of cellulose fibrils that are dimensioned to provide a degree of stabilization for particulates that include particles in a selected size range. In select embodiments, a relatively small volume of nanofibrillated cellulose provide fibres of an appropriate length to effect a significant degree of stabilization for a range of unconsolidated particulate materials that comprise mineralizations on a micron to millimetre scale.
C09K 17/32 - PrepolymersMacromolecular compounds of natural origin, e.g. cellulosic materials
C09K 17/16 - Soil-conditioning materials or soil-stabilising materials containing organic compounds only applied in a physical form other than a solution or a grout, e.g. as platelets or granules
Repair mortar and methods of preparing repair mortar are provided. The repair mortar comprise a cement binder, fine aggregate and cellulose fibrils. In some embodiments, the cellulose fibrils are dispersed uniformly throughout the repair mortar. In some embodiments, the cellulose fibrils comprise nanofibrillated cellulose and/or microfibrillated cellulose. In some embodiments, the cellulose fibrils comprise an aspect ratio of between about 20 to about 500. The methods comprise mixing a cement binder, fine aggregate with water/chemical admixture to provide a cementitious material of good consistency, mixing cellulose fibrils with water to provide a cellulose fibril slurry, and mixing the cellulose fibril slurry with the workable cementitious material. In some embodiments, the cellulose fibrils are dispersed uniformly throughout the workable cementitious material.
C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
Repair mortar and methods of preparing repair mortar are provided. The repair mortar comprise a cement binder, fine aggregate and cellulose fibrils. In some embodiments, the cellulose fibrils are dispersed uniformly throughout the repair mortar. In some embodiments, the cellulose fibrils comprise nanofibrillated cellulose and/or microfibrillated cellulose. In some embodiments, the cellulose fibrils comprise an aspect ratio of between about 20 to about 500. The methods comprise mixing a cement binder, fine aggregate with water/chemical admixture to provide a cementitious material of good consistency, mixing cellulose fibrils with water to provide a cellulose fibril slurry, and mixing the cellulose fibril slurry with the workable cementitious material. In some embodiments, the cellulose fibrils are dispersed uniformly throughout the workable cementitious material.
C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
10.
Surface-modified cellulosic materials and methods of producing the same
Cellulosic materials modified with a surface modifier to promote compatibility with a hydrophobic material and methods for producing surface-modified cellulosic materials are provided. The methods include providing a slurry of a cellulosic material and adding a surface modifier to the slurry. The surface modifier may be added to the slurry in a soluble form and precipitated by adjusting the pH. The surface-modified cellulosic material may be solvent-dried and/or dried using conventional drying methods to enhance hydrophobicity. To solvent-dry the surface-modified cellulosic material, a solvent is added to an aqueous slurry of the surface-modified cellulosic material to form an azeotrope. The azeotrope has a boiling point that is less than the boiling point of the solvent. The slurry is distilled to remove the azeotrope from the surface-modified cellulose material. The solvent is removed from the surface-modified cellulose material.
D21H 11/20 - Chemically or biochemically modified fibres
D21H 21/14 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
11.
SURFACE-MODIFIED CELLULOSIC MATERIALS AND METHODS OF PRODUCING THE SAME
Cellulosic materials modified with a surface modifier to promote compatibility with a hydrophobic material and methods for producing surface-modified cellulosic materials are provided. The methods include providing a slurry of a cellulosic material and adding a surface modifier to the slurry. The surface modifier may be added to the slurry in a soluble form and precipitated by adjusting the p H. The surface-modified cellulosic material may be solvent-dried and/or dried using conventional drying methods to enhance hydrophobicity. To solvent-dry the surface-modified cellulosic material, a solvent is added to an aqueous slurry of the surface-modified cellulosic material to form an azeotrope. The azeotrope has a boiling point that is less than the boiling point of the solvent. The slurry is distilled to remove the azeotrope from the surface-modified cellulose material. The solvent is removed from the surface-modified cellulose material.
D21H 21/14 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
Cellulosic materials modified with a surface modifier to promote compatibility with a hydrophobic material and methods for producing surface-modified cellulosic materials are provided. The methods include providing a slurry of a cellulosic material and adding a surface modifier to the slurry. The surface modifier may be added to the slurry in a soluble form and precipitated by adjusting the p H. The surface-modified cellulosic material may be solvent-dried and/or dried using conventional drying methods to enhance hydrophobicity. To solvent-dry the surface-modified cellulosic material, a solvent is added to an aqueous slurry of the surface-modified cellulosic material to form an azeotrope. The azeotrope has a boiling point that is less than the boiling point of the solvent. The slurry is distilled to remove the azeotrope from the surface-modified cellulose material. The solvent is removed from the surface-modified cellulose material.
D21H 21/14 - Non-fibrous material added to the pulp, characterised by its function, form or propertiesPaper impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
The custom manufacturing of a variety of specialty cellulose products for others derived from wood pulp. Research, design, and development services for others relating to a variety of specialty cellulose products derived from wood pulp; implementation services for others, namely, the application and integration of specialty cellulose products in existing materials and products.
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Research, design and development services for others of semi-finished cellulose filaments derived from wood pulp for use in a variety of industries; product and customer support services in the field of implementation of scientific research for semi-finished cellulose filaments derived from wood pulp for use in a variety of industries; custom manufacturing and supply of semi-finished cellulose filaments derived from wood pulp for use in a variety of industries by others.
