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:
Jun. 05, 1990
Filed:
Oct. 13, 1988
Makoto Takakura, Funabashi, JP;
Takahiro Hori, Funabashi, JP;
Yuriko Sakaguchi, Funabashi, JP;
Yuji Nakamura, Funabashi, JP;
Nissan Chemical Industries Ltd., Tokyo, JP;
Abstract
The invention is a method for preventing a hardened cementitious material from deteriorating or for repairing a deteriorated cementitious material, and more particularly to such method for the hardened cementitious material comprising metal materials to be corroded by a salt content and cause alkali-aggregate. It is characterized by applying a cement paste, mortar or concrete added with 1-25 weight % lithium nitride relative to the cement content so as to cover the surface of hardened cementitious material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile