摘要:
A carbon black is provided which is useful as an electrocatalyst carrier. The carbon black has a DBP oil absorption of 170 to 300 cm3/100 g, a specific surface area as measured by a BET method of 250 to 400 m2/g, a primary particle diameter value of 10 to 17 nm, and a total volume of open pores at the surface which have a pore radius of 10 to 30 nm of 0.40 to 2.0 cm3/g. The electrocatalyst can be used in electrochemical devices such as solid polymer electrolyte fuel cells.
摘要:
A process for producing carbon black by thermally decomposing a hydrocarbon starting material in a production furnace by introducing the starting material to a high temperature zone heated by a high temperature combustion gas formed by burning a fuel and an oxygen-containing gas by a high temperature combustion gas-generating burner, characterized in that an alkali metal compound and/or alkaline earth metal compound is (A) introduced from alkali burner, burner specially itemed for ionizing the alkali metal compound and/or alkaline earth metal compound, set independently from said high temperature combustion gas-generating burner, for burning a mixture of a fuel and an oxygen-containing gas, or (B) ionized in an ionizing furnace specially itemed for ionizing the alkali metal compound and/or alkaline earth metal compound, and then introduced to the production furnace.
摘要:
A process for producing carbon black by utilizing a reactor comprising a first gradually constricted reaction zone in which a mixture of a fuel and an oxygen-containing gas, is burned, a second gradually constricted reaction zone having a throat in which the resulting high temperature combustion gas is mixed and reacted with a hydrocarbon feedstock, and a third reaction zone provided with a quenching water spray for terminating the reaction, which comprises directing the high temperature combustion gas formed in the first reaction zone to form an axial stream flowing in substantially the same direction as the axial direction of the reactor, introducing the divided axial streams into the second reaction zone, and, in the second reaction zone, introducing the hydrocarbon feedstock from nozzles in a direction traversing the axial streams of the high temperature combustion gas.
摘要:
To provide a propylene resin composition excellent in both the electroconductivity and moldability and excellent in their balance, and a molded product thereof.A propylene resin composition comprising from 50 to 98 wt % of a propylene resin having a MFR of from 5 to 300 g/10 min, and from 2 to 50 wt % of carbon black having a 24M4DBP absorption of at least 130 cm3/100 g, a dehydrogenation amount of at most 1.2 mg/g at 1,500° C. for 30 minutes and a crystallite size (Lc) of from 10 to 17 Å. A propylene resin molded product which is a propylene resin molded product obtained by molding such a propylene resin composition and which has a volume resistivity of from 102 to 109 Ω·cm and a MFR of from 1 to 80 g/10 min.
摘要:
To provide carbon black which improves the electrical conductivity and flowability of a resin composition. Carbon black characterized by having the following characteristics: 24M4DBP absorption: At least 130 cm3/100 g (1,500° C. ×30 min) dehydrogenation amount: At most 1.2 mg/g Crystallite size Lc: From 10 to 17ÅMore preferably, it has the following characteristics: Nitrogen adsorption specific surface area: from 150 to 300 m2/g Average particle diameter: from 14 to 24 nm CTAB adsorption specific surface area: from 120 to 220 m2/g DBP absorption: from 150 to 400 cm3/100 g Oxygen-containing functional group density: at most 3 μmol/m2
摘要翻译:提供改善树脂组合物的导电性和流动性的炭黑。 具有以下特征的炭黑:24M4DBP吸收:至少130cm 3 / 100g(1500℃×30分钟)脱氢量:至多1.2mg / g微晶尺寸Lc:10 更优选具有以下特性:氮吸附比表面积:150〜300μm2 / g平均粒径:14〜24nm CTAB吸附比表面积:120〜220 m 2 / g DBP吸收:150至400cm 3 / 100g含氧官能团密度:至多3mumol / m 2 SUP / >
摘要:
To provide carbon black which improves the electrical conductivity and flowability of a resin composition.Carbon black characterized by having the following characteristics: 24M4DBP absorption: At least 130 cm3/100 g (1,500° C.×30 min) dehydrogenation amount: At most 1.2 mg/g Crystallite size Lc: From 10 to 17 Å More preferably, it has the following characteristics: Nitrogen adsorption specific surface area: from 150 to 300 m2/g Average particle diameter: from 14 to 24 nm CTAB adsorption specific surface area: from 120 to 220 m2/g DBP absorption: from 150 to 400 cm3/100 g Oxygen-containing functional group density: at most 3 μmol/m2.
摘要:
To provide a propylene resin composition excellent in both the electroconductivity and moldability and excellent in their balance, and a molded product thereof. A propylene resin composition comprising from 50 to 98 wt % of a propylene resin having a MFR of from 5 to 300 g/10 min, and from 2 to 50 wt % of carbon black having a 24M4DBP absorption of at least 130 cm3/100 g, a dehydrogenation amount of at most 1.2 mg/g at 1,500° C. for 30 minutes and a crystallite size (Lc) of from 10 to 17 Å. A propylene resin molded product which is a propylene resin molded product obtained by molding such a propylene resin composition and which has a volume resistivity of from 102 to 109 Ω·cm and a MFR of from 1 to 80 g/10 min.
摘要:
A recording liquid which gives a printed matter having a high blackness, reduced blurring, satisfactory printed-image quality, and satisfactory print fastness of a record such as light resistance and water resistance, and which has a low viscosity, satisfactory suitability for ejection, and excellent storage stability is provided. A carbon black has the following features (a) to (c): (a) to have a 24M4 DBP absorption of 100 cm3/100 g or higher, (b) to have a D75 larger than 45 nm and smaller than 120 nm, and (c) to have a TINT exceeding 110%. The recording liquid contains the carbon black.
摘要:
A recording liquid which gives a printed matter having a high blackness, reduced blurring, satisfactory printed-image quality, and satisfactory print fastness of a record such as light resistance and water resistance, and which has a low viscosity, satisfactory suitability for ejection, and excellent storage stability is provided. A carbon black has the following features (a) to (c): (a) to have a 24M4 DBP absorption of 100 cm3/100 g or higher, (b) to have a D75 larger than 45 nm and smaller than 120 nm, and (c) to have a TINT exceeding 110%. The recording liquid contains the carbon black.
摘要:
The present invention relates to a carbon black and a process for producing the same. More particularly, the present invention relates to a coloring carbon black having both high blackness and excellent dispersibility, and to a process for producing the same.