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:
Apr. 27, 1999
Filed:
Aug. 01, 1997
Applicant:
Inventors:
Yuji Hatakeyama, Kanagawa-ken, JP;
Hiroshi Inoue, Kanagawa-ken, JP;
Katsuhiko Yamamoto, Chiba-ken, JP;
Assignee:
Tokyo Chemical Co., Ltd, Kamakura, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106696 ; 106801 ; 106802 ;
Abstract
A hardening composition comprising a hardening component and hardening agents, said hardening component consisting essentially of magnesium oxide, said hardening agents consisting essentially of propylene carbonate and water, content of said magnesium oxide being 100 parts by weight, content of said propylene carbonate being 1 to 60 parts by weight, and content of said water being 20 to 135 parts by weight. Further disclosed are a hardened product prepared by hardening the hardening composition, and a method for producing the hardened product.