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:
Sep. 25, 2007
Filed:
Feb. 04, 2003
Applicants:
Takashi Tomita, Toyonaka, JP;
Hirokatsu Kawakami, Izumiotsu, JP;
Inventors:
Takashi Tomita, Toyonaka, JP;
Hirokatsu Kawakami, Izumiotsu, JP;
Assignee:
Nippon Shokubai Co., Ltd., , JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B 24/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The objective of the present invention is to provide a concrete composition in which the amount of air entrained can be maintained stably and which is excellent in strength and durability, a concrete composition which is excellent in freeze-thaw durability owing to the good quality of foams and is excellent in air content stability with time and which can form curing products excellent in strength and durability, a method of producing such concrete composition, and a cement admixture.