Abstract: A continuous process for dispersing a particulate solid material in a liquid comprising the steps of a) dosing a particulate solid material feed stream via a particulate solid feed line (1) into a mixing chamber (2), b) simultaneously dosing a liquid feed stream via a liquid feed line (3) into the mixing chamber (2), wherein at least one of the feed streams additionally comprises an organic film-forming binder, c) simultaneously exerting a shear force on the content of the mixing chamber (2) sufficient to mix the particulate solid material and the liquid to form a mixture of particulate solid in the liquid, and d) simultaneously exerting a shear force to the mixture of particulate solid in the liquid sufficient to reduce the particle size of the particulate solid material in a dispersing chamber (4) to form a particulate solid material dispersed in the liquid, and e) simultaneously removing a liquid product stream of particulate solid material dispersed in the liquid from the dispersing chamber via a liquid d

Abstract: An assembly for the production of dispersions including a mixing unit (7) and a circulation tank (1) for holding liquid, the mixing unit (7) including a first solid inlet (8) for receiving a solid, a second liquid inlet for receiving the liquid, a mixing chamber where the liquid and solid are mixed, and a return outlet (13), the liquid inlet is fluidly connected to the circulation tank (1) such that liquid in the circulation tank flows to the mixing unit (7) via a circulation tank outlet (4), the return outlet (15) transferring the combined liquid and solid from the mixing chamber (7) into the circulation tank (1) via a circulation tank inlet. The circulation tank has an interior height which is configured such that a chamber exists inside the tank above the level of the liquid. Alternatively, the circulation tank inlet is permanently positioned above the liquid level or it includes a pipe configured such that the dispersion forms a film on its inner surface.

Abstract: An assembly for the production of dispersions including a mixing unit (7) and a circulation tank (1) for holding liquid, the mixing unit (7) including a first solid inlet (8) for receiving a solid, a second liquid inlet for receiving the liquid, a mixing chamber where the liquid and solid are mixed, and a return outlet (13), the liquid inlet is fluidly connected to the circulation tank (1) such that liquid in the circulation tank flows to the mixing unit (7) via a circulation tank outlet (4), the return outlet (15) transferring the combined liquid and solid from the mixing chamber (7) into the circulation tank (1) via a circulation tank inlet. The circulation tank has an interior height which is configured such that a chamber exists inside the tank above the level of the liquid. Alternatively, the circulation tank inlet is permanently positioned above the liquid level or it includes a pipe configured such that the dispersion forms a film on its inner surface.

Abstract: The present invention relates to a antisolvent solidification process wherein a liquid medium comprising at least one organic or inorganic compound which is to be solidified is forced through a membrane into one or more antisolvents, or wherein one or more antisolvents are forced through a membrane into a liquid medium comprising at least one organic or inorganic compound which is to be solidified, yielding a composition comprising solid particles comprising said organic and/or inorganic compound(s).

Abstract: The present invention relates to a antisolvent solidification process wherein a liquid medium comprising at least one organic or inorganic compound which is to be solidified is forced through a membrane into one or more antisolvents, or wherein one or more antisolvents are forced through a membrane into a liquid medium comprising at least one organic or inorganic compound which is to be solidified, yielding a composition comprising solid particles comprising said organic and/or inorganic compound(s).

Abstract: The invention relates to a layered double hydroxide comprising a charge-balancing organic anion, wherein the charge-balancing anion is a monovalent anion comprising at least one hydroxyl group, and which comprises less than 20 wt % boehmite. Claimed are also an aqueous slurry, a water borne coating, a composite material and a master batch comprising the said layered double hydroxide as well as the use of the said layered double hydroxide in paper making processes and as stain blocking agent in water borne coating applications.

Abstract: The invention relates to a stable emulsion comprising (a) an oil; (b) water; (c) a surfactant; and (d) solid particulate material, wherein an emulsion comprising the oil, water, and the surfactant has a transitional phase inversion point, wherein the stable emulsion contains droplets having a d50 value of below 1 ?m, and wherein the shelf life time of an emulsion comprising compounds (a) to (d) is longer than the shelf life time of emulsions containing only compounds (a) to (c).

Abstract: The present invention relates to the production of dispersions and is particularly suitable for making dispersions with a viscous or solid dispersed phase in a continuous phase with a lower viscosity.

Abstract: The present invention relates to the production of dispersions and is particularly suitable for making dispersions with a viscous or solid dispersed phase in a continuous phase with a lower viscosity.

Abstract: A p-aramid microfilament yarn and a process for manufacturing the same. In the p-aramid yarn, which has a yarn linear density of at least 300 dtex, comprising a bundle of filaments with a linear density of less than 0.8 dtex, the g value is higher than 2.5 GPa, the elongation (EAB) is higher than 3.4%, and the L002 value is higher than 350 .ANG.. More particularly, the filament linear density is 0.3 to 0.8. The yarn according to the invention has surprisingly favorable properties, such as a high internal shear modulus. The invention also pertains to a process for manufacturing such a microfilament yarn in which p-aramid is subjected to an air gap-wet spinning process of the known type, in which the draw ratio in the air gap combined with the diameter of the capillaries through which the polymer is extruded ensures that microfilament yarn having the desired properties is obtained.