Title:
SEED PARTICLE, COMPOSITE RESIN PARTICLE, MANUFACTURING METHODS OF THOSE PARTICLES, COMPOSITE RESIN PARTICLE, FOAMABLE PARTICLE, PRELIMINARY FOAMED PARTICLE, AND FOAMED MOLDING
Document Type and Number:
Japanese Patent JP2013121998
Kind Code:
A
Abstract:
To provide a simple method of manufacturing seed particles for obtaining composite resin particles with low contents of fine particles and aggregated particles.
The method of manufacturing the seed particles includes extruding the resin composition that at least contains polypropylene-based resin from a die maintained at 300-340°C, and cutting the obtained extrudate in a water stream at a water stream temperature of 30-60°C to thereby obtain the seed particles.
Inventors:
OZAWA MASAHIKO
MORISHIMA NAOYA
MORISHIMA NAOYA
Application Number:
JP2011270375A
Publication Date:
June 20, 2013
Filing Date:
December 09, 2011
Export Citation:
Assignee:
SEKISUI PLASTICS
International Classes:
C08J3/20; C08F2/44; C08J9/14; C08K3/04; C08L23/10
Domestic Patent References:
| JPH0890556A | 1996-04-09 | |||
| JPH10119037A | 1998-05-12 | |||
| JPH0386504A | 1991-04-11 | |||
| JP2002166417A | 2002-06-11 |
Foreign References:
| WO2007099833A1 | 2007-09-07 |
Attorney, Agent or Firm:
Shintaro Nogawa
Shinji Kai
Yusuke Kaneko
Kiyoshi Inamoto
Shinji Kai
Yusuke Kaneko
Kiyoshi Inamoto