Abstract: The claimed invention refers to the development of rubber recipes to improve essential properties related to correlated rubber compounds. Silica gel is added to the rubber compound as a reinforcing agent, partially replacing some of the precipitated silica. The use of silica gel for the pneumatic market provides improved tear resistance, elongation and adhesion performance, and improves adhesion of the tire on wet surfaces.

Abstract: The present invention refers to a stable sodium and iron silicate solution that has a weight ratio of SiO2 to Na2O from 1.5 to 2.5 and a total percentage of solids, expressed by the sum of SiO2 and Na2O, from 20% to 55%. Said solution also has a soluble iron content, expressed by Fe, from 0.1% to 7%, and a water content from 38% to 79.9%. The present invention also refers to the process for preparing said stable solution of sodium and iron silicate, which comprises the steps of: (a) providing a siliceous material containing iron; (b) submitting said siliceous material containing iron to a hydrothermal treatment with caustic soda under high temperature and controlled pressure; and (c) filtering said reacted solution to separate the reacted portion of the hydrothermal treatment from the unreacted portion. Additionally, the present invention refers to the uses of said stable sodium and iron silicate solution.

Abstract: The present invention refers to a stable sodium and iron silicate solution that has a weight ratio of SiO2 to Na2O from 1.5 to 2.5 and a total percentage of solids, expressed by the sum of SiO2 and Na2O, from 20% to 55%. Said solution also has a soluble iron content, expressed by Fe, from 0.1% to 7%, and a water content from 38% to 79.9%. The present invention also refers to the process for preparing said stable solution of sodium and iron silicate, which comprises the steps of: (a) providing a siliceous material containing iron; (b) submitting said siliceous material containing iron to a hydrothermal treatment with caustic soda under high temperature and controlled pressure; and (c) filtering said reacted solution to separate the reacted portion of the hydrothermal treatment from the unreacted portion. Additionally, the present invention refers to the uses of said stable sodium and iron silicate solution.

Abstract: The claimed invention refers to the development of rubber recipes to improve essential properties related to correlated rubber compounds. Silica gel is added to the rubber compound as a reinforcing agent, partially replacing some of the precipitated silica. The use of silica gel for the pneumatic market provides improved tear resistance, elongation and adhesion performance, and improves adhesion of the tire on wet surfaces.

Abstract: The present invention refers to a stable sodium and iron silicate solution that has a weight ratio of SiO2 to Na2O from 1.5 to 2.5 and a total percentage of solids, expressed by the sum of SiO2 and Na2O, from 20% to 55%. Said solution also has a soluble iron content, expressed by Fe, from 0.1% to 7%, and a water content from 38% to 79.9%. The present invention also refers to the process for preparing said stable solution of sodium and iron silicate, which comprises the steps of: (a) providing a siliceous material containing iron; (b) submitting said siliceous material containing iron to a hydrothermal treatment with caustic soda under high temperature and controlled pressure; and (c) filtering said reacted solution to separate the reacted portion of the hydrothermal treatment from the unreacted portion. Additionally, the present invention refers to the uses of said stable sodium and iron silicate solution.

Abstract: The present invention refers to a stable sodium and iron silicate solution that has a weight ratio of SiO2 to Na2O from 1.5 to 2.5 and a total percentage of solids, expressed by the sum of SiO2 and Na2O, from 20% to 55%. Said solution also has a soluble iron content, expressed by Fe, from 0.1% to 7%, and a water content from 38% to 79.9%. The present invention also refers to the process for preparing said stable solution of sodium and iron silicate, which comprises the steps of: (a) providing a siliceous material containing iron; (b) submitting said siliceous material containing iron to a hydrothermal treatment with caustic soda under high temperature and controlled pressure; and (c) filtering said reacted solution to separate the reacted portion of the hydrothermal treatment from the unreacted portion. Additionally, the present invention refers to the uses of said stable sodium and iron silicate solution.

Abstract: A water-based paint production process and product reduces costs by replacing at least a portion of the resin with high ratio soluble silicates having a SiO2:Na2O or SiO2:K2O weight ratio that is higher than 3.3 for sodium silicates and higher than 2.4 for potassium silicates. The high ratio soluble silicate is used as a co-binder for minimizing the costs involved with the use of resin in paint. Use of the high ratio soluble silicate maintains the scrub resistance of the paint and eliminates the need for a pH stabilizing agent, leading to a proportional reduction in the coalescing agent. Because of the complex structures formed by silicates of high weight ratio, the viscosity of the paints will increase, reducing the demand for thickeners. Replacing the organic resins with inorganic soluble silicates lowers the amount of volatile substances in paints, providing more environmentally friendly paint compositions.

Abstract: Embodiments of the invention relate to methods for making and compositions including zeolite with an impregnated titanium dioxide. Such zeolite/titanium dioxide compositions may be useful, for example, as a substitute or extender for titanium dioxide used in coatings.

Abstract: Embodiments of the invention relate to methods and compositions for formation of silica-based hydrogels including titanium dioxide (TiO2) as a dispersion. Such hydrogels may be useful, for example, as a substitute or extender for titanium dioxide used in coatings.

Abstract: Embodiments of the invention relate to methods for making and compositions including zeolite with an impregnated titanium dioxide. Such zeolite/titanium dioxide compositions may be useful, for example, as a substitute or extender for titanium dioxide used in coatings.

Abstract: A method for extending resin-based wood glues, particularly condensation polymer resin-based glues, comprises the steps of (i) providing an aqueous extender composition comprising 20% to 50% by weight of alkali metal silicate and 1% to 25% by weight of polyhydric alcohol, preferably a sugar such as sucrose, (ii) providing a solution comprising a resin and (iii) blending the aqueous extender and the solution together to form a glue. The extended glues are suitable for preparing water resistant processed wooden panels such as plywood or chipboard with reduced need for resin. The extended glues do not set excessively rapidly, allowing time for the processing of the wood composites.