Title:
NON-COMBUSTIBLE COMPOSITE MATERIAL AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3324157
Kind Code:
B2
Abstract:
PURPOSE: To obtain incombustible and semi-incombustible marble by formulating granular filler of a specific composition, an endothermic metal hydroxide and a thermoplastic or thermosetting resin.
CONSTITUTION: A metal hydroxide which cause an endothermic reaction of a high calorie on its thermal decomposition is mixed with a small amount of an inorganic binder and pelletized, heated at about 110°C, crushed so that the ratio of crude particles of more than 1 mm sizes and middle particles of less than 1mm sizes reaches a certain value to prepare a particular filter. The resultant filler, fine particles of endothermic metal hydroxide and a thermoplastic or thermosetting resin are formulated to give the objective artificial marble. In the resultant composite material, the endothermic metal hydroxide amounts to more than 95wt.%, thus the endothermic calorie of 95wt.% hydroxide exceeds the exothermic calorie by combustion of 5wt.% of the resin, and the flame retardancy is improved to enable the production of incombustible or flame-retardant composite materials.
Inventors:
Yukio Oda
Shoji Sakurai
Masahiro Sugiyama
Shoji Sakurai
Masahiro Sugiyama
Application Number:
JP28176692A
Publication Date:
September 17, 2002
Filing Date:
October 20, 1992
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
C04B26/02; C04B14/36; C04B18/02; C04B26/18; C08K3/00; C08K3/22; C08K5/51; C08K7/16; C08K7/18; (IPC1-7): C04B14/36; C08K3/22; C08K7/18
Domestic Patent References:
| JP4314744A | ||||
| JP4265262A | ||||
| JP4170349A | ||||
| JP51103950A |
Attorney, Agent or Firm:
Shinji Kakinuma