Title:
建材用組成物、及び石膏板並びにそれらを使用した工法及び壁等
Document Type and Number:
Japanese Patent JP5405745
Kind Code:
B2
Abstract:
Provided is a building material with a higher specific gravity and/or radioactive-ray-shielding function while maintaining a workability equivalent to that of a conventional gypsum board. It relates to a gypsum-based building material manufactured by adding water to a composition in which a base material is a combination of a hydraulic gypsum and one kind or two or more kinds of dry-hardening calcium carbonate or calcium hydroxide or synthetic resin emulsions and an inorganic filler with a high specific gravity is compounded to it so that reaction and setting or drying and setting are conducted, wherein the composition is characterized by comprising 100 parts by weight of at least one kind or two or more kinds of base materials selected from the group consisting of calcium sulfate, calcium carbonate, calcium hydroxide and organic synthetic resin emulsions, and 50 - 3,000 parts by weight of at least one kind or two or more kinds of inorganic fillers whose true specific gravity is 3.5 - 6.0 which are selected from the group consisting of barium chloride, zinc oxide, aluminum oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate, and barium sulfate.
Inventors:
Katsumi Tada
Koji Yamagata
Toru Yokoyama
Hiroshi Katsumoto
Koji Yamagata
Toru Yokoyama
Hiroshi Katsumoto
Application Number:
JP2007544074A
Publication Date:
February 05, 2014
Filing Date:
September 29, 2006
Export Citation:
Assignee:
Yoshino Gypsum Co., Ltd.
International Classes:
C04B28/14; C04B14/38; C04B14/42; C04B16/06; C04B22/06; C04B22/10; C04B22/12; C04B22/14; C04B26/02; C04B28/12
Domestic Patent References:
| JP2002070239A | 2002-03-08 | |||
| JPH10100308A | 1998-04-21 |
Foreign References:
| DE3607190A1 | 1987-09-10 | |||
| WO2003071556A1 | 2003-08-28 | |||
| DE3607190A1 | 1987-09-10 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito