The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1981
Filed:
Feb. 19, 1980
Applicant:
Inventors:
Eiji Horie, Aichi, JP;
Takeo Saeki, Toyokawa, JP;
Shinichiro Oosawa, Toyokawa, JP;
Hideo Hisaka, Toyokawa, JP;
Naoki Tanetani, Toyokawa, JP;
Assignee:
Isolite Insulating Products Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501124 ; 106104 ;
Abstract
A process for manufacturing heat-insulating firebricks wherein an alumina cement, a water-soluble styrene maleic resin and water are added to a mixture containing a refractory aggregate, an inorganic binder and a granular foamed polystyrene, the resultant mixture being then kneaded and cast in a mold. The added amounts of alumina cement and water-soluble styrene maleic resin are small and water is added to an extent of not more than 50% by weight. The alumina content in the alumina cement is between 8 and 75% by weight.