STYRENE MODIFIED POLYETHYLENE BASED RESIN PARTICLE, AND PREFOAMED PARTICLE OBTAINED FROM RESIN PARTICLE THEREOF

Title:

STYRENE MODIFIED POLYETHYLENE BASED RESIN PARTICLE, AND PREFOAMED PARTICLE OBTAINED FROM RESIN PARTICLE THEREOF

Document Type and Number:

Japanese Patent JP2009114432

Kind Code:

A

Abstract:

To provide styrene modified polyethylene based resin particles which excel in molding workability even after scattering of a foaming agent of prefoamed particles, and a foam molded body obtained from which has high crack resistance.

These styrene modified polyethylene based resin particles are obtained by saturating and polymerizing 150-300 pts.wt. of a styrenic monomer to 100 pts.wt. of a polyethylene-based resin. The central part of the styrene modified polyethylene-based resin particles forms a continuous gradient structure of the polyethylene-based resin and a polystylene-based resin with 0.3-1.0 m of average layer thickness. The ratio of the polyethylene-based resin with the continuous gradient structure at the central part is 30% or higher. The xylene insoluble gel content of the styrene modified polyethylene based resin prefoamed particles obtained form the styrene modified polyethylene-based resin particles is 10-35 wt.%.

Inventors:

SUZUKI KIRITO
MARUHASHI SHOTARO
KIKUCHI TAKENORI
OHARA HIDEKAZU

Application Number:

JP2008262364A

Publication Date:

May 28, 2009

Filing Date:

October 09, 2008

Export Citation:

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Assignee:

KANEKA CORP

International Classes:

C08F2/44; C08F255/02; C08J9/18

Domestic Patent References:

JPH08151471A	1996-06-11
JP2006298956A	2006-11-02
JPH07179646A	1995-07-18
JP2008260928A	2008-10-30

Foreign References:

WO2007060930A1

2007-05-31

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