A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.

A process for the preparation of a diene elastomer modified by a 1,3-dipolar compound is provided. The process comprises a thermomechanical kneading of a mixture of a diene elastomer and of a 1,3-dipolar compound in an internal mixer in order to form a modified diene elastomer, followed by an extrusion of the modified diene elastomer.

A polyamide/hybrid carbon filler composite is disclosed. The composite includes a polyamide as a matrix and a hybrid carbon filler dispersed in and bonded to the polyamide matrix. The hybrid carbon filler is composed of a nano carbon and a carbon fiber. Also disclosed is a method for preparing the polyamide/hybrid carbon filler. The method includes simultaneously subjecting a mixture of a polyamide and a hybrid carbon filler to mechanofusion and plasma treatments.

A process for producing moldings from a powder based on thermoplastic elastomers, wherein the powder is placed on a mold or in a mold and by means of electromagnetic radiation is heated to an extent such that the powder undergoes at least partial melting and thus fuses to afford the molding and the frequency of the electromagnetic radiation is between 0.01 GHz and 300 GHz.

Provided are a polymer ready for introduction into a kneading machine which is milled with good milling efficiency in a kneading machine and which provides a kneaded mixture with excellent filler dispersion, and a rubber composition and a pneumatic tire containing the polymer. The present invention relates to a polymer ready for introduction into a kneading machine, excluding natural rubber, the polymer having a temperature within the range of 20 C. to 80 C. and satisfying the following formula (I):

(Tip clearance d of kneading machine).sup.3(Volume V of polymer ready for introduction into kneading machine)2.010.sup.4 cm.sup.3(I).

The invention relates to an extrusion process for the production of expandable vinyl aromatic polymer granulate comprising mixing first and second additives with first and second polymer components, respectively, in dedicated mixers.

Provided is a composite resin material that enables formation of a shaped product having excellent mechanical strength and sufficiently low surface resistivity. A method of producing the composite resin material includes a step of removing a dispersion medium from a slurry that contains fluororesin particles, fibrous carbon nanostructures, and the dispersion medium, that contains 0.01-0.5 parts by mass of the fibrous carbon nanostructures per 100 parts by mass of the fluororesin particles, and for which an area fraction S (%) of fibrous carbon nanostructure aggregates when the slurry is loaded into a glass slide including an indentation of 0.5 mm in depth and inside of the indentation is observed over a range of 3 mm2 mm using an optical microscope and a volume percentage V (volume %) of the fibrous carbon nanostructures in solid content of the slurry satisfy a relationship: 3S/V30.

A method for manufacturing a phosphor sheet is provided. In the method, a particulate phosphor and a particulate transparent medium are mixed to a first light transmissive resin in a liquid state. The first light transmissive resin containing the phosphor and the transparent medium in the liquid state is supplied into a lower mold of a mold, and the mold is closed. The first light transmissive resin containing the phosphor and the transparent medium in the liquid state is changed to a solid state having a predetermined thickness by applying a heat and a pressure to the first light transmissive resin containing the phosphor and the transparent medium in the liquid state.

A fiber-reinforced polyimide resin molded article and a production process therefor. After a prepolymer of an addition reaction type polyimide resin and functional fibers are dispersed and kneaded together, the kneaded product is kept at a temperature not lower than the heat curing start temperature of the reaction type polyimide resin for a fixed amount of time or mixed with a thickener to increase its viscosity, and shaped at a temperature not lower than the heat curing start temperature of the reaction type polyimide resin to obtain a molded article having excellent sliding performance with a limit PV value of not less than 3,000 kPa.Math.m/s and excellent shape stability during molding and containing the functional fibers dispersed in the polyimide resin.

The present invention discloses a disposable container produced with oxo-biodegradable material. The preparing method is as below: placing PE granules and oxo-biodegradable granules into a mixer; stirring a mixture of the PE granules and the oxo-biodegradable granules completely for 30 minutes; adding the mixture into a heater; increasing the temperature from 100 to 300 degree; dissolving the mixture into a liquid; laminating the liquid on paper; cooling laminated paper in a cooler; sending the laminated paper into a printing press; printing the laminated paper with a water-based ink; cutting the laminated paper by a cutter into a container; shaping the container in a machine; and producing a finished container. The plastic granule on the surface of the laminated paper is bio-degraded and is transferred from high molecular weight into low molecular weight before microorganism transferring the low molecular plastic granule into water, carbon dioxide and biomass.