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. 20, 1976
Filed:
Feb. 27, 1974
Applicant:
Inventors:
Shigeyuki Suzuki, Sagamihara, JA;
Akira Yamauchi, Urawa, JA;
Shoji Kiyama, Tokyo, JA;
Kiyoshi Yamaki, Fuchu, JA;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 208 40 ; 106 96 ;
Abstract
An improved dispersing agent for cement having low foamability and high dispersibility is prepared by sulfonating high aromatic hydrocarbon compounds, and subsequently neutralizing the sulfonated compounds.