Title:
METHOD FOR PRODUCING POLYSTYRENE HAVING WIDE MOLECULAR WEIGHT DISTRIBUTION BY CONTINUOUS ANIONIC POLYMERIZATION
Document Type and Number:
Japanese Patent JP2003165808
Kind Code:
A
Abstract:
To provide a method for producing a polystyrene having a wide molecular weight distribution by continuous anionic polymerization.
This method for producing a polystyrene for a food package having 1.1-20 molecular weight distribution and 10,000-1,000,000 number-average molecular weight of the product by a anionic polymerization performs a reaction by adding 0.01-1 M polymerization initiator into 100 M styrene monomer, using hydrocarbon as a polymerization medium by the same weight or less than the weight of the used styrene monomer. The polystyrene is used for the production of a container for a cup noodle, disposable cup or common tray.
Inventors:
KIM SANMIN
HAI SOGEN
SAI DAISHO
KIM SHOKON
RIN SHOKEN
KIM GINICHI
HAI SOGEN
SAI DAISHO
KIM SHOKON
RIN SHOKEN
KIM GINICHI
Application Number:
JP2002128858A
Publication Date:
June 10, 2003
Filing Date:
April 30, 2002
Export Citation:
Assignee:
KUMHO PETROCHEMICAL CO LTD
International Classes:
B65D1/00; B65D1/09; C08F4/42; C08F12/00; C08F12/08; (IPC1-7): C08F4/42; B65D1/09; C08F12/00
Attorney, Agent or Firm:
Kichi Toshio Kawa