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:
Mar. 20, 1990
Filed:
May. 04, 1989
Applicant:
Inventor:
Shiro Saito, Tokyo, JP;
Assignee:
Nikka Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106 90 ; 428405 ;
Abstract
A dry grouting agent comprises cement particles having baked on the surface thereof a coating including a water-soluble silicon resin and a surface active agent. The grouting agent is produced by preparing a liquid mixture including a water-soluble silicon resin, a surface active agent and an oily solvent, adding the liquid mixture to cement particles and uniformly kneading it therewith, heating the result to evaporate off the oily solvent and water and to bake onto the cement particles a coating layer containing the water-soluble silicon and the surface active agent, and cooling and pulverizing the resulting solid mass.