IP Library Granted Patent US 8,105,540
Granted Patent B2
US 8,105,540 · App. 12/821,788 · Granted Jan 31, 2012

Method of treating polymer compound and treatment system for the same

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Quick Facts
Patent No.
US 8,105,540
App. No.
12/821,788
Granted
Jan 31, 2012
Kind
B2
Abstract

A method of treating a polymer compound has the steps of: mixing and agitating the polymer compound and a chemical agent in an extruder while controlling the inside of the extruder to be kept at a high temperature and a high pressure to have a reaction mixture containing a polymer treated product; supplying the reaction mixture continuously into a high-pressure container disposed following the extruder and retaining the reaction mixture at the high temperature and high pressure for a predetermined time; then supplying the reaction mixture continuously to a chemical agent separator to separate the polymer treated product; and supplying the separated polymer treated product continuously to a molding means to form it into a molded material.

Claims (22)

1. A treatment system of a polymer compound wherein the polymer compound and a chemical agent are kept at a high temperature and a high pressure, comprising:

an extruder that mixes and agitates the polymer compound and the chemical agent to react the polymer compound with the chemical agent to have a reaction mixture comprising a polymer treated product;

a high-pressure container integrated with the extruder;

a chemical agent separator connected following the high-pressure container to separate the reaction mixture into the polymer treated product and the chemical agent;

a molding device connected to the chemical agent separator to mold the separated polymer treated product;

a pressure control device disposed between the high-pressure container and the chemical agent separator;

a heating device configured to heat the extruder and the high-pressure container to the high temperature; and

a pressure control device configured to keep constant an internal pressure of the chemical agent separator.

2. The treatment system according to claim 1 , wherein:

the high-pressure container comprises a continuous reactor tube.

3. The treatment system according to claim 1 , wherein:

the heating device comprises an electric heater disposed around the chemical agent separator.

4. The treatment system according to claim 1 , wherein:

the heating device is disposed on an outer periphery of the chemical agent separator, and provided with a jacket in which a heating medium is circulated and a heating medium circulating device that supplies the heating medium to the jacket.

5. The treatment system according to claim 1 , wherein:

the molding device comprises a molding extruder to form the polymer treated product into an extrusion-molded material, a cooler to cool the extrusion-molded material, and a cutting device to cut the cooled extrusion-molded material.

6. The treatment system according to claim 1 , wherein:

the pressure control device comprises a discharge valve.

7. The treatment system according to claim 1 , wherein:

the pressure control device comprises a combination of a discharge valve and a resistor with plural holes.

8. The treatment system according to claim 1 , wherein:

the pressure control device comprises a resistor with plural holes, a flow control valve or a combination thereof.

Assignments (1)
MERGER Recorded Jan 29, 2014
From: HITACHI CABLE, LTD.
To: HITACHI METALS, LTD.
Reel/Frame 032134/0723 →