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. 06, 1976
Filed:
Jan. 30, 1974
Applicant:
Inventors:
Isamu Sasaki, Tokyo, JA;
Iwao Kojima, Yokohama, JA;
Fujio Namigata, Yokohama, JA;
Yoku Ashigame, Kawasaki, JA;
Hiroshi Mihara, Kawasaki, JA;
Assignee:
Showa Denko Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C08G / ;
U.S. Cl.
CPC ...
260 293 ; 106 89 ; 106 90 ; 260 / ; 260 49 ; 2605 / ;
Abstract
Water-reducing additives for ceramic material, and especially for cement paste, mortar or concrete, which comprise a phenolic compound having a sulfo radical or a sulfomethyl radical, wherein the hydrogen atoms of acidic radicals in part of said phenolic compound molecules are substituted by atoms of sodium, potassium or calcium.