US 8,911,828 B2 · Method of producing molded article

Abstract

The present invention provides a method of producing a molded article, which can be perform the continuous processes and effectively impregnate a modifying material such as metal complexes in the thermoplastic resin for short period of time. The above object is achieved by providing the method of producing the thermoplastic resin molded article which includes impregnating the pressurized fluid having a modifying material dissolved therein, in thermoplastic resin; discharging the pressurized fluid from the thermoplastic resin in which the modifying material has been impregnated; and continuously molding the thermoplastic resin, in which the modifying material has been impregnated and from which the pressurized fluid has been discharged, into the form of a film.

Claims9

Dependent claims

A method of producing a molded article, comprising:

dissolving a modifying material in a pressurized fluid;
impregnating the pressurized fluid, in which the modifying material has been dissolved, in a thermoplastic resin inside a heating cylinder provided with a screw;
discharging the pressurized fluid from the thermoplastic resin to out of a cooling jacket having no screw while cooling the thermoplastic resin in the cooling jacket, the modifying material being dispersed in the thermoplastic resin;
and
after the discharging of the pressurized fluid, continuously extruding the thermoplastic resin from a die, in which the modifying material has been dispersed and from which the pressurized fluid has been discharged,
wherein a pressure of the thermoplastic resin is reduced during the cooling of the thermoplastic resin.

3 more elements

Dependencies are inferred from the claim text.

Method of producing molded article

Life of this patent

Method of producing molded article

Life of this patent

Abstract

Claims9