Title:
ポリエチレン系樹脂発泡粒子、およびポリエチレン系樹脂型内発泡成形体
Document Type and Number:
Japanese Patent JP5689819
Kind Code:
B2
Abstract:
A polyethylene resin expanded particle has an expansion ratio of not less than 10 times and not more than 50 times, and in a DSC curve obtained by differential scanning calorimetry (DSC), the polyethylene resin expanded particle (i) shows two melting peaks, the two melting peaks being a low-temperature side melting peak and a high-temperature side melting peak, and (ii) further has a shoulder in a region not less than 100°C and not more than the low-temperature side melting peak temperature, the shoulder having a shoulder ratio which is not less than 0.2% and not more than 3%. This makes it possible to obtain a polyethylene resin expanded particle for producing a polyethylene resin in-mold expansion molded article in which especially an end (edge part) of the polyethylene resin in-mold expansion molded article is excellent in fusion bond level and appearance and which has neither a wrinkle nor a void on a surface thereof, is excellent in surface property (has a beautiful surface), and has a high expansion ratio.
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Inventors:
中山 清敬
吉田 融
吉田 融
Application Number:
JP2011549946A
Publication Date:
March 25, 2015
Filing Date:
January 14, 2011
Export Citation:
Assignee:
株式会社カネカ
International Classes:
C08J9/18; C08K5/05; C08K5/10; C08L23/04
Domestic Patent References:
| JP2002226621A | 2002-08-14 | |||
| JPS641741A | 1989-01-06 | |||
| JP2002097295A | 2002-04-02 | |||
| JP2000017079A | 2000-01-18 | |||
| JP2002226621A | 2002-08-14 | |||
| JPS641741A | 1989-01-06 | |||
| JP2002097295A | 2002-04-02 |
Foreign References:
| WO2009075208A1 | 2009-06-18 | |||
| WO1997018260A1 | 1997-05-22 | |||
| WO2009075208A1 | 2009-06-18 | |||
| WO1997018260A1 | 1997-05-22 |
Attorney, Agent or Firm:
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK