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Patent Searching and Data


Title:
CONCRETE FORM
Document Type and Number:
Japanese Patent JP2004156332
Kind Code:
A
Abstract:

To provide a concrete form having a superior separation strength, and reducing the rate of change of dimension.

This concrete form (a) is molded by foaming-molding a styrene-based resin preliminary foaming particles obtained by impregnating styrene-based resin particles with carbon dioxide in a mold. The separation strength with concrete of the obtained concrete form is set in the range of 1 to 20 g/cm2. The concrete form is molded by using the styrene resin preliminary foaming particles having a surface glossiness measured in conformity with JIS-K7105 of 30 to 60, and the average surface foam film thickness of 3 to 20 μm.


Inventors:
YAMAGATA HIROYUKI
KADOWAKI YUKITAKA
Application Number:
JP2002323709A
Publication Date:
June 03, 2004
Filing Date:
November 07, 2002
Export Citation:
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Assignee:
SEKISUI PLASTICS
International Classes:
E04G9/05; B28B7/34; E04G9/10; (IPC1-7): E04G9/05; E04G9/10
Attorney, Agent or Firm:
Yusuke Hiraki
Yasushi Hayakawa
Sekiya Mitsuo