Title:
発泡体の製造方法
Document Type and Number:
Japanese Patent JP3950980
Kind Code:
B2
Abstract:
This invention provides a process for producing a styrene foam product that can produce styrene foam products, which can prevent the occurrence of black smoke, can improve fire resistance and heat resistance, and can suppress shrink deformation caused by fire and heat, with good productivity. Prefoamed beads are mixed with a phenolic resin containing boric acid and aluminum hydroxide to form covered beads each having a surface covered with a covering layer (3) containing boric acid, aluminum hydroxide, and a phenolic resin. The covered beads are dried and disintegrated to prepare many single-particle beads each having a surface covered with the covering layer (3). The single-particle beads are filled into a mold followed by main foaming. Heat of steam can be efficiently supplied into between the covering layers (3) in the single-particle beads. In this case, since the heating time and cooling time necessary for the main foaming of the single-particle beads can be extremely shortened, mass production at low cost can be realized.
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Inventors:
Fujimori Takashi
Application Number:
JP2006542328A
Publication Date:
August 01, 2007
Filing Date:
October 07, 2005
Export Citation:
Assignee:
Innotex Co., Ltd.
International Classes:
C08J9/232; C08J9/224
Domestic Patent References:
| JP2001164031A | ||||
| JP2000344928A |
Attorney, Agent or Firm:
樺澤 襄
Satoshi Kabazawa
Tetsuya Yamada
Satoshi Kabazawa
Tetsuya Yamada