A method for producing a granulated metal oxide powder and corresponding granulated metal oxide powder includes obtaining an initial metal oxide powder, consisting of particles of a metal oxide, by hydrolysing a chloride of the metal and forming a suspension containing the initial metal oxide powder and an organic binder suspended in a suspension medium. The method also includes drying the suspension so as to obtain granulated metal oxide powder, consisting of grains formed by agglomerates of particles of the initial metal oxide powder.

The present invention provides an ultrafine modified hydromagnesite powder, and a preparation method and application thereof. The preparation method comprises the following steps: drying ultrafine hydromagnesite, then adding a certain amount of organic dispersion reagent, isocyanate compound and catalyst, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain powder 1; taking the powder 1, a certain amount of organic dispersion reagent and fatty amine, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain the ultrafine modified hydromagnesite powder. The powder is mixed with polyethylene and an auxiliary agent, and extruded for granulation at 160-200 C. to obtain polyethylene composite material. The material has excellent tensile strength and flame retardant property.

The present invention provides an ultrafine modified hydromagnesite powder, and a preparation method and application thereof. The preparation method comprises the following steps: drying ultrafine hydromagnesite, then adding a certain amount of organic dispersion reagent, isocyanate compound and catalyst, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain powder 1; taking the powder 1, a certain amount of organic dispersion reagent and fatty amine, stirring at a certain temperature for a period of time, filtering, washing and drying to obtain the ultrafine modified hydromagnesite powder. The powder is mixed with polyethylene and an auxiliary agent, and extruded for granulation at 160-200 C. to obtain polyethylene composite material. The material has excellent tensile strength and flame retardant property.

The present invention relates to crumbles comprising at least one calcium carbonate-containing material, a process for the preparation of the crumbles, an article comprising the crumbles as well as an use of the crumbles in paper making, paper coating, food, plastic, preferably films, more preferably blown films or breathable films, fibres, polyvinyl chloride, plastisols, thermosetting polymers, more preferably thermosetting unsaturated polyesters or thermosetting unsaturated polyurethanes, agricultural, paint, coatings, adhesives, sealants, pharmaceuticals, agricultural, construction and/or cosmetic applications.

Copper oxide particles having particular starting size and surface area characteristics can be processed by heat and milling to achieve sizes and particle size distributions that give the copper oxide properties as an infrared reflective pigment without addition of other metals or oxides.

In order to provide a filler composition for fabricating a high-performance filler achieving good productivity while preventing worsening of a working environment and production of a VOC and to provide a filler and a method for producing the filler, a filler composition of the present invention contains wet silica, a polyoxyethylene unsaturated fatty acid ester, and a sulfur-containing silane coupling agent.

A method for reducing the hygroscopicity of a material (M) including calcium carbonate may include treating the calcium carbonate with at least one homopolymer grinding assistant (P) which is neutralized in a particular way. A method for producing such a material (M) including calcium carbonate may include treating the calcium carbonate with at least one homopolymer grinding assistant (P) to provide such a material (M), which is then of reduced hygroscopicity. Such a calcium carbonate may be used as a filler in polymeric plastics.

The present invention relates to a calcium carbonate-comprising material having a content of bio-based carbon determined according to DIN EN 16640:2017 of at least 50 wt.-%, based on the total weight of carbon in the calcium carbonate-comprising material, a process for the preparation of the calcium carbonate-comprising material, a polymer formulation comprising the calcium carbonate-comprising material, an article formed from the polymer formulation, a process for preparing the article as well as the use of the calcium carbonate-comprising material in a polymer formulation

The present invention provides spray-dried powders comprising from 0.1% to 25% a hydrophobic polymer, from 75% to 99.9% inorganic particles, and less than 3% a dispersant. The Tg of the hydrophobic polymer is less than 105 C., the average particle size of the inorganic particles is from 5 nm to 100 um, and the average particle size of the spray-dried powders is from 1 um to 400 um. The hydrophobic polymer comprises, as polymerization units, an ethylenically unsaturated nonionic monomer. The present invention further provides a process for the preparation of the spray-dried powders comprising (a) preparing a solution comprising the hydrophobic polymer, the inorganic particles, and the dispersant; and (b) adding the solution into a spray dryer and preparing the spray-dried powders.

The present invention relates to a process for preparing a surface treated calcium carbonate-comprising material, a surface treated calcium carbonate-comprising material obtained by the process, an article comprising the surface treated calcium carbonate-comprising material, a polymer composition and the use of the surface treated calcium carbonate-comprising material in a polymer composition.