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4369307 Method for removing carbon particles from a molded article
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This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks either have higher surface areas than the carbon blacks normally prepared from the feedstocks or are produced more economically. The blacks produced by the process are suitable for use in ail of the typical applications such as rubber plastics, inks and the like.
4~9307 METHOD FOR REMOVING CARBON PARTICLES FROM A MOLDED ARTICLE Nitin V Des&; Robert F PolI assigned to RCA Corporation A method for separating out carbon particles from a composition comprising a platic and carbon particles of submicron dimensions comprising the steps of adding the composition to an organic solvent for the plastic which does not dissolve the carbon particles at a concentration sufficiently dilute to allow the carbon particles to be free from the plastic and filtering the resulting mixture in a calcium carbonate column which traps essentialiy all of the carbon particles. 4369~7 PROCESS FOR DISPERSING CARBON BLACK IN POLYETHYLENE
low density polyethylene and high density polyethylene~ or propylene polymer, to form an intermediate masterbatch, which is further let-down in a low density polyethylene by a second intensive mixing stage. The proportions of each component are chosen to yield a Final product consisting of (on a weight basis) from l-S% carbon black, l-10% high density polyethylene or propylene polymer, and at least 50% of the remainder being low density polyetbyle~e. The final products so obtained exhibit good carbon black dispersion of a microscopic basis and are essentially free of carbon black agglomerates, the type of which are usually formed by the more standard processes wherein the initial masterbatch is simply let-down into Iow density polyethylene by only a single intensive mixing stage.
4369170 INTERCALATIDN COMPOUND OF A GRAPHITE WITH A THIAZYL SALT, A PROCESS FOR PRODUCING THE SAME, AND AN ELE~RICALLY CONDUCTIVE MATERIAL COMPOSING THE INTERCALATION COMPOUND OF A GRAPHITE WITH A THIAZYL SALT Nobuatsu Watanabe; Tsuyoshi Nakajima; Masayuk Kawaguchi; Nagaokakyo, Japan; assigned to Central Glass Co Ltd
Chue-Kwok J Keung J; Donald E Rathgeber; Dollard des Orme~ux, Canada; assigned to Union Carbide Canada Limited
A process for dispersing fine particle size carbon blacks in low density polyethylene whereby an initially prepared carbon black-low density polyethylene masterbatch, consisting of from 20-50 percent by weight carbon black, is let-down by intensive mixing, in a dry blended mixture of
A novel intercalation compound of a graphite with a thiazyl salt represented by the formula 2.S4N4.2SbCl5 wherein Z stands for C24, pyrolytic carbon or pyrolytic graphite is prepared by reacting a graphite material with trithiazyl trichtoride and antimony trichlor~de in the presence of a non-polar solvent. The graphite
Vi
This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks either have higher surface areas than the carbon blacks normally prepared from the feedstocks or are produced more economically. The blacks produced by the process are suitable for use in ail of the typical applications such as rubber plastics, inks and the like.
4~9307 METHOD FOR REMOVING CARBON PARTICLES FROM A MOLDED ARTICLE Nitin V Des&; Robert F PolI assigned to RCA Corporation A method for separating out carbon particles from a composition comprising a platic and carbon particles of submicron dimensions comprising the steps of adding the composition to an organic solvent for the plastic which does not dissolve the carbon particles at a concentration sufficiently dilute to allow the carbon particles to be free from the plastic and filtering the resulting mixture in a calcium carbonate column which traps essentialiy all of the carbon particles. 4369~7 PROCESS FOR DISPERSING CARBON BLACK IN POLYETHYLENE
low density polyethylene and high density polyethylene~ or propylene polymer, to form an intermediate masterbatch, which is further let-down in a low density polyethylene by a second intensive mixing stage. The proportions of each component are chosen to yield a Final product consisting of (on a weight basis) from l-S% carbon black, l-10% high density polyethylene or propylene polymer, and at least 50% of the remainder being low density polyetbyle~e. The final products so obtained exhibit good carbon black dispersion of a microscopic basis and are essentially free of carbon black agglomerates, the type of which are usually formed by the more standard processes wherein the initial masterbatch is simply let-down into Iow density polyethylene by only a single intensive mixing stage.
4369170 INTERCALATIDN COMPOUND OF A GRAPHITE WITH A THIAZYL SALT, A PROCESS FOR PRODUCING THE SAME, AND AN ELE~RICALLY CONDUCTIVE MATERIAL COMPOSING THE INTERCALATION COMPOUND OF A GRAPHITE WITH A THIAZYL SALT Nobuatsu Watanabe; Tsuyoshi Nakajima; Masayuk Kawaguchi; Nagaokakyo, Japan; assigned to Central Glass Co Ltd
Chue-Kwok J Keung J; Donald E Rathgeber; Dollard des Orme~ux, Canada; assigned to Union Carbide Canada Limited
A process for dispersing fine particle size carbon blacks in low density polyethylene whereby an initially prepared carbon black-low density polyethylene masterbatch, consisting of from 20-50 percent by weight carbon black, is let-down by intensive mixing, in a dry blended mixture of
A novel intercalation compound of a graphite with a thiazyl salt represented by the formula 2.S4N4.2SbCl5 wherein Z stands for C24, pyrolytic carbon or pyrolytic graphite is prepared by reacting a graphite material with trithiazyl trichtoride and antimony trichlor~de in the presence of a non-polar solvent. The graphite