Title:
A manufacturing method of foamable polystyrene system resin particles
Document Type and Number:
Japanese Patent JP6263987
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing an expandable polystyrene-based resin particle that can produce a polystyrene-based resin expansion molded article having an excellent fire retardant property and insulation property, having a high fusion-bonding percentage, and having an excellent appearance as well as that has a low residual monomer level and a small variation in particle size distribution.SOLUTION: A method for producing an expandable polystyrene-based resin particle comprising graphite and fire retardant, includes: mixing a polystyrene-based resin, graphite, and bromine-based fire retardant by kneading to produce a polystyrene-based resin seed particle and dispersing the same in an aqueous medium; then, impregnating a styrenic monomer into the polystyrene-based resin seed particle and polymerizing the same; and impregnating a physical blowing agent into the resin particle during or after the polymerization to produce an expandable polystyrene-based resin particle.
Inventors:
Sakamoto Tomoya
Application Number:
JP2013245157A
Publication Date:
January 24, 2018
Filing Date:
November 27, 2013
Export Citation:
Assignee:
JSP Corporation
International Classes:
C08J9/16; C08F2/44; C08F257/02; C08K3/04
Domestic Patent References:
| JP2013209608A | ||||
| JP2012188634A | ||||
| JP2013136646A | ||||
| JP2013514397A | ||||
| JP2013181291A |
Foreign References:
| US20120252914 |
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office
Previous Patent: Electronic equipment, an image processing method, and an image processing program
Next Patent: SILICONE COMPOSITION FOR INSULATOR
Next Patent: SILICONE COMPOSITION FOR INSULATOR