ポリスチレン系樹脂発泡シートとその製造方法

Title:

ポリスチレン系樹脂発泡シートとその製造方法

Document Type and Number:

Japanese Patent JP4771764

Kind Code:

B2

Abstract:

To provide a polystyrene-based resin foam sheet which can provide a molding having general properties comparable with those of a molding formed with a conventional polystyrene based resin foam sheet of the same thickness and density and exhibiting higher strength, especially higher compression strength, and can achieve the saving of the material and cost reduction, and a method for manufacturing the resin foam sheet.

The polystyrene-based resin foam sheet has a thickness of 1.0-4.0 mm and a density of 0.05-0.2 g/cm3. The heat shrinkage rate of the resin foam sheet after 30 second heating at 140°C is 0-15% in both the extrusion and the transverse directions of the resin foam sheet, and the ratio of the heat shrinkage rate in the extrusion direction to that in the transverse direction is 0.5-1.5.

More Like This:

WO/2017/141873

THERMOPLASTIC RESIN FILM AND PRODUCTION METHOD THREREFOR, AND LAMINATE

Inventors:

Takaaki Iwata
Mizutani good religion

Application Number:

JP2005209665A

Publication Date:

September 14, 2011

Filing Date:

July 20, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

Lispack Co., Ltd.

International Classes:

B29C48/305; C08J9/12; B29K25/00; B29K105/04; B29L7/00

Domestic Patent References:

JP2003285363A
JP2001150610A
JP10324759A
JP2003251762A
JP2003118047A

Attorney, Agent or Firm:

Hiroe Associates Patent Office
Takenori Hiroe
Takanobu Takekawa
High Shinichi Ara
Nakamura Shigenori
Tsutomu Nishio

Previous Patent: 粉末スティックタイプ小型自動包装機の原料供給機構

Next Patent: 電池ケース