Recovered carbon black from recycled tires may be processed through several stages of: cleaning of the recovered carbon black; activation of the recovered carbon black; hydrothermal impregnation of catalyst in activated carbon of the recovered carbon black; graphitization of activated carbon of the recovered carbon black impregnated with catalyst; and finally, cleaning of graphite and recovery of catalyst.

Disclosed herein is a carbonaceous material exhibiting properties and characteristics that lend to its use in forming composite materials. In particular aspects, the carbonaceous material comprises a carbon content of greater than or equal to 85 wt. %, a surface area ranging from 150 m.sup.2/g to 500 m.sup.2/g, and an oil absorption value ranging from 50 g/100 g to 100 g/100 g. Also disclosed are methods for making and using the carbonaceous material, including forming composite polymer compositions.

Disclosed herein is a carbonaceous material exhibiting properties and characteristics that lend to its use in forming composite materials. In particular aspects, the carbonaceous material comprises a carbon content of greater than or equal to 85 wt. %, a surface area ranging from 150 m.sup.2/g to 500 m.sup.2/g, and an oil absorption value ranging from 50 g/100 g to 100 g/100 g. Also disclosed are methods for making and using the carbonaceous material, including forming composite polymer compositions.

A method for forming a copper coated particles includes combining a precipitating agent with a solution comprising copper nitrate and particles to forming coated particles. The particles are cobalt oxide (Co.sub.3O.sub.4) or carbon black. The coated particles are washed to obtain washed coated particles, the washed coated particles are filtered to obtain filtered coated particles, the filtered coated particles are dried to obtain dried coated particles, and the dried coated particles are calcined to obtain the copper coated particles. The copper coated particles have a reflectivity of electromagnetic radiation in a visible spectrum that is less than or equal to 5%, and a reflectivity of electromagnetic radiation in a near-IR and LiDAR spectrum that is greater than or equal to 5%.

A plasma-assisted method includes receiving pieces of waste polymer, then applying a modification process that weakens the waste polymer covalent bonds. A low temperature oxidative depolymerization process is applied to the modified polymer, which transforms the modified polymer to a short chain polymer. Optionally the short chain polymer includes C2-C2. Optionally the short chain polymer is input to a process of bacteria metabolization that produces medium-chain-length poly hydroxyalkanoates (mcl-PHAs). Optionally the bacteria is a Pseudomonas strain. Optionally the oxidative depolymerization process is performed at room temperature.

The present invention relates to a particulate carbon material that can be produced from renewable raw materials, in particular from biomass containing lignin, comprising: a MC content that corresponds to that of the renewable raw materials, said content being preferably greater than 0.20 Bq/g carbon, especially preferably greater than 0.23 Bq/g carbon, but preferably less than 0.45 Bq/g carbon in each case; a carbon content in relation to the ash-free dry substance of between 60 ma. % and 80 ma. %; an STSA surface area of the primary particles of at least 5 m.sup.2/g and at most 200 m.sup.2/g; and an oil absorption value (OAN) of between 50 ml/100 g and 150 ml/100 g. The present invention also relates to a method for producing said carbon material and to the use thereof.

The present invention relates to a particulate carbon material that can be produced from renewable raw materials, in particular from biomass containing lignin, comprising: a MC content that corresponds to that of the renewable raw materials, said content being preferably greater than 0.20 Bq/g carbon, especially preferably greater than 0.23 Bq/g carbon, but preferably less than 0.45 Bq/g carbon in each case; a carbon content in relation to the ash-free dry substance of between 60 ma. % and 80 ma. %; an STSA surface area of the primary particles of at least 5 m.sup.2/g and at most 200 m.sup.2/g; and an oil absorption value (OAN) of between 50 ml/100 g and 150 ml/100 g. The present invention also relates to a method for producing said carbon material and to the use thereof.

A method for efficiently removing non-magnetic foreign material, from a carbonaceous material dispersion in which carbonaceous material particles are dispersed in a dispersing medium, includes applying the dispersion to a primary filter a specified number of times in circulation, the primary filter including at least one filter device; and applying the dispersion treated with the primary filter to a secondary filter a single time, the secondary filter including at least two filter devices arranged in series. Each respective filter device to be used satisfying following conditions: (a) a variation of cumulative undersize distribution Q [%] with respect to a reference particle diameter and a variation of non-volatile content, before and after passing the carbonaceous material dispersion, being not more than 0.1%, respectively; and (b) a removal rate of particles with a threshold particle diameter being not less than 20%.

A method for efficiently removing non-magnetic foreign material, from a carbonaceous material dispersion in which carbonaceous material particles are dispersed in a dispersing medium, includes applying the dispersion to a primary filter a specified number of times in circulation, the primary filter including at least one filter device; and applying the dispersion treated with the primary filter to a secondary filter a single time, the secondary filter including at least two filter devices arranged in series. Each respective filter device to be used satisfying following conditions: (a) a variation of cumulative undersize distribution Q [%] with respect to a reference particle diameter and a variation of non-volatile content, before and after passing the carbonaceous material dispersion, being not more than 0.1%, respectively; and (b) a removal rate of particles with a threshold particle diameter being not less than 20%.

An embodiment of the present application discloses a display panel, a manufacturing method thereof, and a display device thereof. The display panel includes a light emission functional layer and a color filter layer, the color filter layer includes a light shielding units, a light shielding material in the light shielding units includes a light shielding composition. The light shielding composition includes a plurality of carbon black particles and at least one function group located on surfaces of the carbon black particles. The function group is an acidic functional group or a free radical capture group, the acidic functional group is one of a carboxyl group, a hydroxy group, and a carbonyl group. The free radical capture group is a ketone group.