The present disclosure relates to surface-functionalized carbonaceous particles, optionally in agglomerated form, methods for making such surface-functionalized carbonaceous particles and their use, for example as conductive additives in battery electrodes. The surface-functionalized carbonaceous particles are for example obtainable by milling a non-graphitic carbon material, followed by subsequent functionalization through controlled oxidation. The surface-functionalized carbonaceous particles can be used as additive in battery electrodes. The disclosure also pertains to dispersions of such carbonaceous materials in a liquid medium and their use as, among others, conductive coatings. Polymer compounds filled with the surface-functionalized carbonaceous particles are also disclosed.

A granular conductive carbon black and a preparation method thereof, belonging to the technical field of conductive carbon blacks. The method for preparing a granular conductive carbon black includes making a raw material of the conductive carbon black undergo moistening with water of a temperature of 80° C. or higher, performing wet granulation and drying in sequence. The raw material of the conductive carbon black is infiltrated by the water of a temperature of 80° C. or higher, so that the hydrophilic property of the raw material of the conductive carbon black is enhanced, the water of a temperature of 80° C. or higher enters the microporous structures of the raw material of the conductive carbon black, then a good moistening effect is achieved, and further the granular conductive acetylene carbon black with uniform particle size distribution is prepared through wet granulation and drying.

The present invention relates to a furnace black having a STSA surface area of at 130 m.sup.2/g to 350 m.sup.2/g wherein the ratio of BET surface area to STSA surface area is less than 1.1 if the STSA surface area is in the range of 130 m.sup.2/g to 150 m.sup.2/g, the ratio of BET surface area to STSA surface area is less than 1.2 if the STSA surface area is greater than 150 m.sup.2/g to 180 m.sup.2g, the ratio of BET surface area to STSA surface area is less than 1.3 if the STSA surface area i greater than 180 m.sup.2/g; and
the STSA surface area and the BET surface area are measured according to ASTM D 6556 and to a furnace process wherein the stoichiometric ratio of combustible material to O.sub.2 when forming a combustion gas stream is adjusted to obtain a k factor of less than 1.2 and the inert gas concentration in the reactor is increased while limiting the CO.sub.2 amount fed to the reactor. Also provided is an apparatus for conducting the process according to the present invention.

Provided is a kaolin having a finer particle size and a narrower particle size distribution, in combination with suitable morphology. Also provided are a method of preparing the kaolin product and methods of use.

A precipitated silica is disclosed. Said precipitated silica has a BET/CTAB in a range of 0.8-1.35; a DBP oil absorption in a range of 240-320 ml/100 g; and a CDBP coefficient (DA) in range of 0.65 to 0.9. The precipitated silica has a micro pore area ranging from 6 to 35 m.sup.2/g and a micro pore volume ranging from 0.01 to 0.06 cm.sup.3/g.

Oral care compositions and methods for reducing dental sensitivity or at least partially occluding dentin tubules of teeth in a subject are described herein. The oral care compositions may include an orally acceptable vehicle and a silica blocking agent configured to at least partially occlude dentin tubules of teeth. The silica blocking agents may include silica particles having a particle size distribution (D95) less than or equal to 7 m and a BET surface area of greater than or equal to 150 m.sup.2/g.

A method and apparatus for thermal transfer printing onto selected regions of a substrate are disclosed. The method comprises: a) providing a transfer member having an imaging surface; b) coating the imaging surface with particles formed of, or coated with, a thermoplastic polymer; c) removing substantially all particles that are not in direct contact with the imaging surface to leave a uniform monolayer particle coating on the imaging surface; d) applying energy to selected regions of the imaging surface to heat and render tacky particles of corresponding regions of the monolayer coating; and e) pressing at least portions of the imaging surface and the substrate surface against one another, either during and/or after application of energy, to cause transfer to the surface of the substrate of the particles of the corresponding regions that have been rendered tacky. The monolayer coating can be replenished with new particles and the cycle repeated.

Silica-including microcapsule resin particles including an outer shell constituted of a crosslinked polymer and a cavity partitioned with the outer shell, in which the silica-including microcapsule resin particles contain inside the cavity a porous structure in which silica particles are mutually connected, and have a volume average particle diameter of 0.5 to 100 m.

Particles with suitable properties may be generated using systems and methods provided herein. The particles may include carbon particles.

A method of preparing hydrophobic porous silica includes adding an alcohol to a solvent in which a porous silica particle including a hydrophilic group is dispersed and stirring the same to form a mixture, drying the mixture including the porous silica particle in a vacuum, and condensation reacting the hydrophilic group of the porous silica particle with the alcohol on the surface of the porous silica particle to modify the surface of the porous silica particle to be hydrophobic.