Title:
CONTINUOUS REGENERATION OF ACRYLIC RESIN AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP3410343
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for continuously regenerating an acrylic resin, enabling to efficiently and safely decompose the scraps of the acrylic resin into a gas, cooling the gas and recover the gas as a good liquid monomer, and to provide a method used therefor.
SOLUTION: This method for continuously regenerating an acrylic resin comprises feeding the scraps of the acrylic resin into a twin screw extruder 1 having a closed cylinder 2, thermally decomposing the fed scraps at 400-600°C, sucking the decomposition gas extruded from the tip of the extruder 1 through a residue tank 10 by the negative pressure effect of a cooler 12 and a vacuum pump and subsequently condensing the decomposition gas in the cooler 12 into a liquid monomer.
Inventors:
Heiharu Saito
Tetsuo Masaki
Kiyoshi Morooka
Kunihiko Koyanagi
Tetsuo Masaki
Kiyoshi Morooka
Kunihiko Koyanagi
Application Number:
JP27595797A
Publication Date:
May 26, 2003
Filing Date:
October 08, 1997
Export Citation:
Assignee:
Takamizu Chemical Industry Co., Ltd.
Japan Steel Works, Ltd.
Japan Steel Works, Ltd.
International Classes:
C08J11/12; B29B17/00; C08F8/00; B29K33/18; (IPC1-7): C08F8/00
Domestic Patent References:
| JP9324068A | ||||
| JP5194626A |
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)