Thermoplastic resin composition, process for production thereof, and biaxially oriented film produced from said composition
AssigneeTeijin Limited
InventorsTakafumi Kudo, Masahiko Kosuge, Akira Kameoka
Life of this patent
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Abstract
A thermoplastic resin composition containing inorganic particles, wherein (i) the inorganic particles have pore volume of 0.1 to 3 ml/g and (ii) the inorganic particles are treated at the surfaces with a hydrophilic polyester of 0.05 to 10 times the weight of the inorganic particles or with a silicon-containing organic compound. This composition can be obtained by feeding a dispersion of the above-mentioned surface-treated inorganic particles into a vented double-screw kneader and extruder to mix it with a thermoplastic resin.
Claims24
A thermoplastic resin composition containing inorganic particles, wherein (i) the inorganic particles have a pore volume of 0.1 to 3 ml/g and (ii) the inorganic particles are treated at the surfaces with a hydrophilic polyester of 0.05 to 10 times the weight of the inorganic particles or with a silicon-containing organic compound, wherein the inorganic particles have, in the particles size distribution, at least two peaks.
A thermoplastic resin composition containing inorganic particles, wherein (i) the inorganic particles have pore volume of 0.1 to 3 ml/g and (ii) the inorganic particles are treated at the surfaces with a hydrophilic polyester of 0.05 to 10 times the weight of the inorganic particles, wherein the inorganic particles have, in the particular size distribution, at least two peaks.
A thermoplastic resin composition containing silica particles, wherein (i) the silica particles have pore volume of 0.1 to 3 ml/g and (ii) the silica particles are treated at the surfaces with a silicon-containing organic compound, wherein the silica particles have, in the particle size distribution, at least two peaks.
A process for producing a thermoplastic resin composition by kneading a thermoplastic resin and inorganic particles using a vented double-screw kneader and extruder, in which process (i) the inorganic particles have pore volume of 0.1 to 3 ml/g, (ii) the inorganic particles are treated at the surfaces with a hydrophilic polyester of 0.05 to 10 times the weight of the inorganic particles or with a silicon-containing organic compound, and the inorganic particles are fed into the vented double-screw kneader and extruder in the form of their dispersion in water and/or an inert organic solvent, wherein the inorganic particles have, in the particles have, in the particle size distribution, at least two peaks.
Dependencies are inferred from the claim text.