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:
Dec. 29, 1981
Filed:
Aug. 26, 1980
Applicant:
Inventors:
Akitoshi Tsuji, Wakayama, JP;
Yoshihiro Fukushima, Wakayama, JP;
Assignee:
Kao Soap Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106 90 ; 106314 ;
Abstract
Slump loss in fresh concrete is prevented by adding a powdery or granular barium, magnesium, iron or aluminum salt of a .beta.-naphthalenesulfonic acid-formaldehyde condensate to the cement or concrete composition. About 0.01 to 10 parts by weight of the condensate per 100 parts by weight of cement, preferably Portland cement, are employed.