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Title:
METHOD FOR FABRICATING FIREPROOF PANEL AND APPARATUS FOR PREPARING EXPANDABLE RESIN
Document Type and Number:
Japanese Patent JP2003311758
Kind Code:
A
Abstract:

To obtain a fireproof panel in which the blocking of a pipe line and the abrasion of a pressure pump and piping are reduced, and a powdered inorganic flame retardant is homogeneously dispersed in the thickness direction of an expandable resin layer.

A polyol mixture p is prepared by mixing a reaction catalyst and an expanding agent with the polyol and immediately after a master batch m, wherein the powdered inorganic flame retardant is suspended, is mixed with and dispersed in the polyol mixture p, the polyol mixture p is allowed to collide with and mixed with a polyisocyanate i, and the obtained expandable resin R is ejected to a surface metal band S or a back surface metal band B. The fitting parts formed to the end parts of the surface metal band S and the back surface metal band B in the width direction of them are meshed mutually and the gap between the metal band S and the metal band B is filled up with the expandable resin layer 3 made by expanding the expandable resin R.


Inventors:
TSUCHIYA NOBUYUKI
IWATA HIROSHI
MIYAKE JUNICHI
Application Number:
JP2002000117407
Publication Date:
November 05, 2003
Filing Date:
April 19, 2002
Export Citation:
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Assignee:
NISSHIN STEEL CO LTD
International Classes:
E04B1/94; B29C39/18; B29C39/24; E04C2/26; B29K75/00; B29K105/04; B29L9/00; (IPC1-7): B29C39/18; B29C39/24; E04B1/94; E04C2/26
Attorney, Agent or Firm:
小倉 亘 (外2名)