A composite material includes, in an exemplary embodiment a polyurethane foam and a plurality of inorganic particles dispersed therein. The polyurethane foam is formed from a reaction mixture that includes a first polyether polyol having a first molecular weight and a functionality of about 3 or less, a second polyether polyol having a second molecular weight less than the first molecular weight and a functionality of greater than about 3, and at least one isocyanate. The ratio of an amount of the first polyol in the reaction mixture to an amount of the second polyol in the reaction mixture is between about 1:1 to about 5:1.

Provided herein are a method and a system for producing slabs, tiles or sheets of artificial stone, with a wide vein effect, comprising inorganic particles of different sizes and hardened binders, and which simulate the appearance of natural stone.

This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).

The invention relates to an unsaturated polyester resin of low molecular weight which is useful for the preparation of engineered stone. When mixing the unsaturated polyester resin with a fine inorganic particulate material such as cristobalite, a formable composition is obtained that can be further processed and cured to finally yield engineered stone as composite material. The invention also relates to a method for the preparation of engineered stone as well as to the use of the unsaturated polyester resin for the preparation of engineered stone.

A method of making a porous silicate based material with similar properties as an extrusive or intrusive igneous silicate based rock without being naturally occurring. Quartz sand with a silica content (SiO.sub.2) of more than 75% is mixed with Sodium oxide, Calcium oxide, and Aluminum oxide and heated up to a temperature of more than 960 C. and for the chemical reactions to take place and for the molten mixture to reach an elastic state where the viscosity allows the formed gasses to be dissolved into the melt. The sintering process may be at atmospheric pressure or at positive pressure. The material is then cooled to a solid. The process gives a porous igneous rock with micro cells based on CO.sub.2 bubbles made at a temperature prior to the molten mixture reaching a plastic state. The solid material may be milled and used as a filter material. In one aspect, the solid is milled, mixed with a foaming agent, melted and cooled in order to form an even more porous second solid material.

The present disclosure describes modular blocks configured to give the appearance of natural or cut stone. An aesthetic coating composition may be applied to one or more surfaces of a block having a low-density, such as an insulating concrete form (ICF), to form an modular block having the appearance of cut stone. The aesthetic coating composition includes a binder component, such as a cementitious binder made from white Portland cement, or a polymer binder such as an acrylic binder, an aggregate component, such as a limestone aggregate component, and optionally an adhesive component. The aggregate component includes a fine sand portion and a coarse sand portion that effectively enable the appearance of cut stone after finishing of the aesthetic coating surface via sanding, polishing, sandblasting, acid etching, acid finishing, or exposed aggregate finishing.

A composite material includes, in an exemplary embodiment a polyurethane foam and a plurality of inorganic particles dispersed therein. The polyurethane foam is formed from a reaction mixture that includes a first polyether polyol having a first molecular weight and a functionality of about 3 or less, a second polyether polyol having a second molecular weight less than the first molecular weight and a functionality of greater than about 3, and at least one isocyanate. The ratio of an amount of the first polyol in the reaction mixture to an amount of the second polyol in the reaction mixture is between about 1:1 to about 5:1.

The invention relates to the use of feldspar granules with a particular combination of oxide constituents in the manufacture of artificial agglomerate stone materials and to the agglomerate stone materials resulting thereof.

This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).

The present invention relates to methods for forming a layered composite material, the finished product comprising at least one geopolymeric layer and at least one cement-based layer. The method of the invention allows the provision of products with more varied appearances, shapes, colours, gloss, or surface structures such as decorations, reliefs, roughness, or the like. Products obtained according to the method of the invention also form part of the invention.