Composition for the production of sinks including: fillers obtained from recovered material, resin obtained from recovered material, and virgin additives obtained neither from recovered materials nor from materials of animal or plant origin. The recovered fillers include one or more of the following materials: recovered glass microspheres, recovered quartz, recovered material obtained from the grinding of sinks with a base of quartz or glass fillers and resin and aluminum trihydrate (ATH). The resin is an acrylic syrup obtained from recovered material or polyester obtained from recovered material. The virgin additives include at least one cross-linking agent that favors the cross-linking of the resin and one compatibilizing substance that favors the adhesion of the resin to the fillers, where said virgin additives are in a weight percentage of less than 9% of the total weight of the composition.

A solar heat-reflective roofing product includes a base sheet, and solar heat-reflective roofing granules on top of the base sheet. The granules have a base particle with a flake-like geometry covered by a uniform coating layer. The coating layer has a thickness of at least one mil and includes a coating binder and at least one solar heat-reflective pigment. The solar heat-reflective pigment provides a solar heat reflectance of greater than 70 percent to the granules and the roofing product. Roofing products including roofing shingles and roofing membranes are described.

A solar heat-reflective roofing product includes a base sheet, and solar heat-reflective roofing granules on top of the base sheet. The granules have a base particle with a flake-like geometry covered by a uniform coating layer. The coating layer has a thickness of at least one mil and includes a coating binder and at least one solar heat-reflective pigment. The solar heat-reflective pigment provides a solar heat reflectance of greater than 70 percent to the granules and the roofing product. Roofing products including roofing shingles and roofing membranes are described.

Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may comprise a plurality of coated roofing granules, wherein each of the plurality of the coated roofing granules may comprise a roofing granule having an outer surface; and a granule coating, wherein the granule coating is disposed on at least a portion of the outer surface of the roofing granule, and wherein the granule coating comprises graphene. Some embodiments of the present disclosure relate to a roofing material, wherein the roofing material may further comprise a reflective base coating, wherein the reflective base coating is positioned between the outer surface of the roofing granule and the granule coating.

The present invention provides a method of colouring and surface treating the surface of a particulate material, such as a silica-based material like sand, where the method includes the steps of: a) optionally heating the particulate material to a temperature between 3 and 85 C.; b) preparing an aqueous dispersion of a colourant, an alkoxy silane, a silyl alkanoate, a polysiloxane, or a mixture of these; c0) optionally treating the particulate material c1) mixing the dispersion prepared in step b) with the particulate material of step a); c2) optionally adding an alkoxy silane, a silyl alkanoate, a polysiloxane, or a mixture of these; c3) heating the mixture to a temperature of between 2 and 80 C. for a period of 1 minute to 24 hours; and d) optionally mixing the treated sand formed in step c) with an aqueous dispersion of a colourant, an alkoxy silane, a silyl alkanoate, a polysiloxane, or a mixture of these. Steps a) (where used) and b) can be conducted simultaneously or sequentially in either order. At least one step includes the use of an alkoxy silane, a silyl alkanoate, and/or a polysiloxane. At least one step includes use of a colourant. The aqueous dispersion of step d) may be the same or different to that of step b). The invention further provides a coloured particulate material which is surface modified on at least one surface with a colourant and at least one of a silyl alkyl group or silyl alkenyl group. The material may be made by the method of the invention. The invention also provides filled moulding material comprising the coloured particulate filler material.

The present invention provides a method of colouring and surface treating the surface of a particulate material, such as a silica-based material like sand, where the method includes the steps of: a) optionally heating the particulate material to a temperature between 3 and 85 C.; b) preparing an aqueous dispersion of a colourant, an alkoxy silane, a silyl alkanoate, a polysiloxane, or a mixture of these; c0) optionally treating the particulate material c1) mixing the dispersion prepared in step b) with the particulate material of step a); c2) optionally adding an alkoxy silane, a silyl alkanoate, a polysiloxane, or a mixture of these; c3) heating the mixture to a temperature of between 2 and 80 C. for a period of 1 minute to 24 hours; and d) optionally mixing the treated sand formed in step c) with an aqueous dispersion of a colourant, an alkoxy silane, a silyl alkanoate, a polysiloxane, or a mixture of these. Steps a) (where used) and b) can be conducted simultaneously or sequentially in either order. At least one step includes the use of an alkoxy silane, a silyl alkanoate, and/or a polysiloxane. At least one step includes use of a colourant. The aqueous dispersion of step d) may be the same or different to that of step b). The invention further provides a coloured particulate material which is surface modified on at least one surface with a colourant and at least one of a silyl alkyl group or silyl alkenyl group. The material may be made by the method of the invention. The invention also provides filled moulding material comprising the coloured particulate filler material.