Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) a particulate filler having a bulk density of 1 g/cm.sup.3 or greater, (c) optionally a fiber material, and (d) a lightweight filler having a bulk density from 0.01 g/cm.sup.3 to less than 1 g/cm.sup.3. In some examples, the lightweight filler can be selected from expanded perlite, expanded clay, foamed glass, and combinations thereof. Articles such as building materials comprising the polyurethane composites are also disclosed.

Solar-reflective roofing granules having improved solar heat-resistance are formed by coating colored mineral particles with a coating composition including titanium dioxide nanoparticles.

Solar-reflective roofing granules having improved solar heat-resistance are formed by coating colored mineral particles with a coating composition including titanium dioxide nanoparticles.

Disclosed herein is an artificial marble chip having a color gradient from a surface thereof to inside.

Disclosed herein is an artificial marble chip having a color gradient from a surface thereof to inside.

A colored composition including a resin system, and a colorized filler. The colorized filler includes particles including a polymer. The particles have a density less than 2.6 g/cc and an average particle size from 100 microns to 600 microns.

A colored composition including a resin system, and a colorized filler. The colorized filler includes particles including a polymer. The particles have a density less than 2.6 g/cc and an average particle size from 100 microns to 600 microns.

Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) a particulate filler having a bulk density of 1 g/cm.sup.3 or greater, (c) optionally a fiber material, and (d) a lightweight filler having a bulk density from 0.01 g/cm.sup.3 to less than 1 g/cm.sup.3. In some examples, the lightweight filler can be selected from expanded perlite, expanded clay, foamed glass, and combinations thereof. Articles such as building materials comprising the polyurethane composites are also disclosed.

Polyurethane composites and methods of preparation are described herein. The polyurethane composites can comprise (a) a polyurethane formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols, (b) a particulate filler having a bulk density of 1 g/cm.sup.3 or greater, (c) optionally a fiber material, and (d) a lightweight filler having a bulk density from 0.01 g/cm.sup.3 to less than 1 g/cm.sup.3. In some examples, the lightweight filler can be selected from expanded perlite, expanded clay, foamed glass, and combinations thereof. Articles such as building materials comprising the polyurethane composites are also disclosed.

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.