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:
Sep. 27, 1988
Filed:
Mar. 10, 1986
Applicant:
Inventors:
Shizuko Kushida, Tokyo, JP;
Takashi Tsubahara, Tokyo, JP;
Takafumi Naito, Tokyo, JP;
Seiji Kaneko, Kamakura, JP;
Yasunori Matsuoka, Yokohama, JP;
Takefumi Shindo, Tokyo, JP;
Assignees:
Ozawa Concrete Industry Co., Tokyo, JP;
Taisei Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B / ; B29C / ;
U.S. Cl.
CPC ...
264256 ; 264133 ; 264D / ;
Abstract
A concrete structural member of improved stability is produced by preparing a concrete composite layer having a concrete layer on one side and an aggregate layer on the other side thereof, impregnating the composite layer with a monomer, thermally or catalytically polymerizing the monomer impregnated in the composite layer, and thereafter placing fresh concrete on the aggregate layer side of the polymer-impregnated composite layer.