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:
Jul. 19, 2005
Filed:
Jun. 27, 2001
Tomotaka Nishikawa, Suita, JP;
Hirokatsu Kawakami, Izumiotsu, JP;
Daisuke Imai, Himeji, JP;
Hiromichi Tanaka, Toyonaka, JP;
Tsuyoshi Hirata, Kobe, JP;
Tsutomu Yuasa, Osaka, JP;
Tomotaka Nishikawa, Suita, JP;
Hirokatsu Kawakami, Izumiotsu, JP;
Daisuke Imai, Himeji, JP;
Hiromichi Tanaka, Toyonaka, JP;
Tsuyoshi Hirata, Kobe, JP;
Tsutomu Yuasa, Osaka, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
The admixtures for a cementitious composition of the invention, which have the above-mentioned constitutions, can suitably be used in cement pastes, mortar, concrete and like cement compositions and can stabilize the amount of air entrained with the lapse of time and thus facilitate the quality control of cement compositions and, further, can improve the workability of cement compositions owing to their excellent dispersing capacities. The cement compositions of the invention which comprise such admixture for a cementitious composition are excellent in water-reducing ability and workability and can give hardened products excellent in strength and durability and, further, can stably maintain the amount of air entrained without allowing increases in the amount of air even when the time of kneading is prolonged in the production.