A pressure-sensitive adhesive sheet for covering according to an embodiment of the present invention includes a non-crosslinked rubber component having a maximum peak of the molecular weight distribution in the range of 50,000 to 3,000,000, an oil component having a maximum peak of the molecular weight distribution in the range of 1,000 to 20,000, and carbon black. The content of the non-crosslinked rubber component is 25% to 65% by mass, the content of the oil component is 35% to 75% by mass, and the content of the carbon black relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is 1 to 40 parts by mass.

The present invention relates to the use of solid metal materials for catalyzing the hydration of carbon dioxide. It also relates to methods of and apparatus for hydrating carbon dioxide and capturing carbon. The solid metal materials may be nickel nanoparticles. The invention finds particular application in the sequestration of carbon dioxide either at the point of release or from the atmosphere.

The present invention relates to the use of solid metal materials for catalyzing the hydration of carbon dioxide. It also relates to methods of and apparatus for hydrating carbon dioxide and capturing carbon. The solid metal materials may be nickel nanoparticles. The invention finds particular application in the sequestration of carbon dioxide either at the point of release or from the atmosphere.

The present invention relates to the use of a surface-reacted calcium carbonate as anti-caking agent, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and at least one acid in an aqueous medium, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source, and to a composition comprising said anti-caking agent, as well as to a method for the production of such a composition.

Methods of compounding nanoparticles with a resin, e.g., a curable resin and one or more surface modifying agents are described. The methods use wet milling technology, including both continuous and batch milling processes, and can be used to functionalize the nanoparticles and disperse the functionalized nanoparticles into the resin system in a single process. Methods of compounding curable resin systems containing reactive diluents are also disclosed.

The present disclosure relates to a method for treating and recycling, in an environment-friendly manner, sludge and waste water generated in a process for crushing waste concrete and recycling waste concrete into aggregates. Sand is separated from sludge configured from cement components and sand components and is recycled as fine aggregates, and the cement components can be used as concrete admixtures. Furthermore, the present invention introduces a mineral carbonation technique and thereby allows pH of waste water to satisfy an environmental standard and allows high value calcium carbonate to be produced.

The present invention provides a new carbon dioxide fixation apparatus. The carbon dioxide fixation apparatus (1) of the present invention includes: a first reaction vessel (10); a carbon dioxide fixing agent feeding unit (110); and a gas-liquid mixing unit. The first reaction vessel (10) can contain a carbon dioxide fixing agent, the carbon dioxide fixing agent feeding unit (110) can feed the carbon dioxide fixing agent into the first reaction vessel (10), and the gas-liquid mixing unit can mix a gas containing carbon dioxide into the carbon dioxide fixing agent.

A process for the chemical conversion of contaminated magnesium hydroxide to high purity solutions of magnesium bicarbonate include steps of providing an impure reagent including at least 40% and less than 95% by total weight of total metals of magnesium in a form of solid magnesium hydroxide and at least 10% by weight of total metals of calcium carbonate, combining the impure reagent containing the solid magnesium hydroxide with carbonic acid in water, thereby generating magnesium bicarbonate and water and then filtering out solid calcium carbonate leaving a solution of magnesium bicarbonate in water having a by weight ratio of Mg/(Mg+Ca) in the solution of greater than 95%. Heating and/or drying the magnesium bicarbonate solution produces correspondingly high purity magnesium carbonate.

The present invention relates to a process to modify at least part of the surface of an earth alkaline metal carbonate-containing material in a dry blending process as well as to a mineral product obtainable by the inventive process and uses thereof.

The present invention concerns a process for the preparation of flocculated filler particles, wherein at least two aqueous suspensions of at least one filler material and at least one flocculating additive are combined.