Title:
POLYETHYLENE RESIN FOAMED PARTICLES AND MOLDED ARTICLES THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/031745
Kind Code:
A1
Abstract:
By causing polyethylene resin particles, which use a linear low-density polyethylene resin as the base resin, to foam, said linear low-density polyethylene resin being a copolymer of ethylene and an alpha-olefin with 6 and/or 8 carbons, a density of 0.920 g/cm3 to less than 0.940 g/cm3, a melt flow rate (MFR) of 0.1 g/10 minutes to 5.0 g/10 minutes, and a molecular weight distribution (Mw/Mn) of 3 to less than 5, as measured by measured by gel permeation chromatography (GPC), polyethylene resin foam molded articles with beautiful surfaces and low shrinkage rates versus mold dimensions can be manufactured at a wide range of vapor pressures at which excellent molded articles can be obtained during molding, and polyethylene resin foamed particles, which have an average foam diameter of 200 μm to 700 μm, and an open cell rate of at least 12%, can be provided.
Inventors:
NAKAYAMA KIYOTAKA (JP)
Application Number:
PCT/JP2012/071633
Publication Date:
March 07, 2013
Filing Date:
August 28, 2012
Export Citation:
Assignee:
KANEKA CORP (JP)
NAKAYAMA KIYOTAKA (JP)
NAKAYAMA KIYOTAKA (JP)
International Classes:
C08J9/18; C08K5/053; C08K5/3477; C08L23/04; C08L71/02
Foreign References:
| JPH10204203A | 1998-08-04 | |||
| JP2010059393A | 2010-03-18 | |||
| JPH10245437A | 1998-09-14 | |||
| JP2010031265A | 2010-02-12 | |||
| JPH10237211A | 1998-09-08 |
Attorney, Agent or Firm:
KANEKA CORPORATION (JP)
KANEKA Co. (JP)
KANEKA Co. (JP)
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Claims: