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:
Jan. 16, 2001
Filed:
Dec. 16, 1997
Applicant:
Inventors:
Tsuyoshi Hirata, Kobe, JP;
Tsutomu Yuasa, Osaka, JP;
Katsuhisa Shiote, Yokohama, JP;
Koichiro Nagare, Suita, JP;
Syogo Iwai, Kawasaki, JP;
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
C08F / ; C08F / ;
Abstract
The present invention provides a method for producing a cement dispersant having high percentage in water reduction-rate and appropriate air-entraining property. This method for producing a polycarboxylic acid for a cement dispersant is characterized in that alkylene oxide is added at a specific temperature range.
Hirata, Tsuyoshi. (2001). Cement dispersant, method for producing polycarboxylic acid for cement dispersant and cement composition (U.S. Patent No. 6174980). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6174980
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile