Disclosed is a composite gypsum board comprising a board core and a concentrated layer, as well as related methods of preparing board and slurries. The board core and the concentrated layer both are formed from water and stucco. The concentrated layer is designed to have higher density and/or nail pull than the core. The concentrated layer is further formed from a polysaccharide that forms a complex with calcium ions, e.g., an alginate compound such as sodium alginate. In some embodiments, the concentrated layer is formed from an enhancing additive to enhance strength therein, while the core is formed without using enhancing additive or less enhancing additive than used in forming the board core.

Disclosed is a composite gypsum board comprising a board core and a concentrated layer, as well as related methods of preparing board and slurries. The board core and the concentrated layer both are formed from water and stucco. The concentrated layer is designed to have higher density and/or nail pull than the core. The concentrated layer is further formed from a polysaccharide that forms a complex with calcium ions, e.g., an alginate compound such as sodium alginate. In some embodiments, the concentrated layer is formed from an enhancing additive to enhance strength therein, while the core is formed without using enhancing additive or less enhancing additive than used in forming the board core.

The present disclosure provides compositions and methods of manufacture of a composite material. In an aspect, the composite material may comprise a cellulosic material and a binder material. In some cases, at least a portion of the cellulosic material may be delignified. In some cases, at least a portion of crystal structure of the cellulosic material may be maintained in the composite material. In some cases, the cellulosic material may comprise a plurality of pores. In some cases, the binder may comprise lime comprising calcium oxide or calcium hydroxide. In some cases, the binder may further comprise silicate.

The present disclosure provides compositions and methods of manufacture of a composite material. In an aspect, the composite material may comprise a cellulosic material and a binder material. In some cases, at least a portion of the cellulosic material may be delignified. In some cases, at least a portion of crystal structure of the cellulosic material may be maintained in the composite material. In some cases, the cellulosic material may comprise a plurality of pores. In some cases, the binder may comprise lime comprising calcium oxide or calcium hydroxide. In some cases, the binder may further comprise silicate.

A system for forming a coating on a substrate is provided. The system includes a first mix having a cement, a filler, a defoamer, a cement retarder, a dispersing agent, or any combination thereof. The system additionally includes a second mix having a fatty acid derivative, a synthetic resin, one or more organosilicon compounds, a pigment, a thickener, or any combination thereof. A coating composition is formed by mixing the first and second mix together. Lastly, the system includes a spraying apparatus that applies a wet film to the substrate wherein the cured coating does not yield to wet-rubs and does not stain (effloresce) with cold distilled water.

A system for forming a coating on a substrate is provided. The system includes a first mix having a cement, a filler, a defoamer, a cement retarder, a dispersing agent, or any combination thereof. The system additionally includes a second mix having a fatty acid derivative, a synthetic resin, one or more organosilicon compounds, a pigment, a thickener, or any combination thereof. A coating composition is formed by mixing the first and second mix together. Lastly, the system includes a spraying apparatus that applies a wet film to the substrate wherein the cured coating does not yield to wet-rubs and does not stain (effloresce) with cold distilled water.

Described herein are compositions comprising hemp, minerals, and water. Such compositions may be used in construction, building materials, insulation, etc. Such compositions may be sprayed, poured, cast, molded, etc.

Described herein are compositions comprising hemp, minerals, and water. Such compositions may be used in construction, building materials, insulation, etc. Such compositions may be sprayed, poured, cast, molded, etc.

In the field of decorative floor coverings, decorative panels are known having a MDF (Medium Density Board) or HDF (High Density Board) based core layer on top of which a decorative substrate is attached to provide the panels a desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel or a wall panel. The invention also relates to a floor covering consisting of a plurality of mutually coupled panels.

In the field of decorative floor coverings, decorative panels are known having a MDF (Medium Density Board) or HDF (High Density Board) based core layer on top of which a decorative substrate is attached to provide the panels a desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel or a wall panel. The invention also relates to a floor covering consisting of a plurality of mutually coupled panels.