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 is directed to a process for the preparation of an aqueous suspension of self-binding pigmentary particles comprising the following stages: (a) forming one or more aqueous suspensions of at least one inorganic matter comprising calcium carbonate; (b) forming or obtaining one or more aqueous solutions or suspensions or emulsions of at least one binder; and (c) co-grinding the aqueous suspension or suspensions obtained in stage a) with the aqueous solutions or suspensions or emulsions obtained in stage b) in a mill so as to obtain an aqueous suspension of self-binding pigmentary particles.

The present invention relates to methods for producing surface-modified calcium oxide particles having the production steps according to claim 1, novel calcium oxide particles obtained according to these methods, and uses thereof.

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.

The invention provides an aqueous ink containing a coloring material, wherein the coloring material is a self-dispersible pigment in which a functional group containing another atomic group and an anionic group such as a carboxylic acid group, a sulfonic acid group, a phosphoric acid group or a phosphonic acid group are bonded to a particle surface of a pigment such as carbon black or an organic pigment, and a standard deviation of an introduced amount of the functional group is 0.0380 or less.

This invention relates to particles comprising a pigment core particle encapsulated by a polymer, a process for their preparation, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids.

A retroreflective powder coating composition including a film-forming resin and a plurality of retroreflective particles. The film-forming resin including a base particle, a metallic coating, a pigment coating composition, and a substantially transparent siloxane coating.

A carbon material granulated product contains a carbon black having a particle size D50, as determined by a laser diffraction/scattering method specified in ISO 13320, of 250 m or less, a carbon nanotube having a particle size D50, as determined by the laser diffraction/scattering method specified in ISO 13320, of 50 m or less, and a solvent-soluble polymer impregnated into the carbon black and the carbon nanotube. In the carbon material granulated product, the solvent-soluble polymer is at least one selected from the group consisting of ether polymers, vinyl polymers, amine polymers, cellulose polymers, and starch polymers, and the content of the solvent-soluble polymer is in a range from 1 part by mass to 15 parts by mass relative to a total content of the carbon black and the carbon nanotube taken as 100 parts by mass.

A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.