Title:
POLYSTYRENE-BASED RESIN FOAM PRODUCTION METHOD
Document Type and Number:
Japanese Patent JP2015183125
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a production method that can stably produce polystyrene-based resin foam of low apparent density using a physical blowing agent containing, as major constituent, four kinds of blowing agents of saturated hydrocarbon, aliphatic alcohol, water and carbon dioxide that are excellent in environmental compatibility.SOLUTION: The polystyrene-based resin foam production method of the present invention is characterized in that, in a method for producing polystyrene-based resin foam by forming a foamable molten resin composition obtained by mixing a polystyrene-based resin and a physical blowing agent, into extruded plate shape, the physical blowing agent consists of a blowing agent composed of, for 1 kg of the polystyrene-based resin, 0.4 to 0.8 mol of a particular saturated hydrocarbon, 0.4 to 1.0 mol of a particular aliphatic alcohol, and water, and 0 to 0.5 mol of carbon dioxide, the mole ratio of blowing agent (b1) and blowing agent (b2) (b1/b2) is 0.1 to 0.6, and the total incorporation amount of the physical blowing agent is, for 1 kg of the polystyrene-based resin, 0.7 to 2 mol.
Inventors:
KIKUZAWA MAKOTO
SEKIYA SHUNSUKE
HASHIZUME YOSHITERU
SEKIYA SHUNSUKE
HASHIZUME YOSHITERU
Application Number:
JP2014062205A
Publication Date:
October 22, 2015
Filing Date:
March 25, 2014
Export Citation:
Assignee:
JSP CORP
International Classes:
C08J9/12
Domestic Patent References:
| JPH0480240A | 1992-03-13 | |||
| JP2012522070A | 2012-09-20 | |||
| JP2004043681A | 2004-02-12 | |||
| JP2013545872A | 2013-12-26 | |||
| JP2005514506A | 2005-05-19 | |||
| JP2012528921A | 2012-11-15 | |||
| JP2012512942A | 2012-06-07 | |||
| JP2013166880A | 2013-08-29 |
Foreign References:
| US20120025126A1 | 2012-02-02 |
Attorney, Agent or Firm:
Kuninori Hirosawa