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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.:

US 12371378 B1

PDFFull Text
Date of Patent:
Jul. 29, 2025

Filed:

Mar. 02, 2021

Structure protection sheet, concrete block, and method for manufacturing reinforced structure

Applicant:

Keiwa Incorporated, Tokyo, JP;

Inventors:

Masao Ashikaga, Tokyo, JP;

Yoshiki Nakajima, Tokyo, JP;

Toshikatsu Furunaga, Tokyo, JP;

Noriyuki Horiuchi, Tokyo, JP;

Akira Ninomiya, Tokyo, JP;

Yukinobu Ikeda, Tokyo, JP;

Kenta Shimotani, Tokyo, JP;

Yuki Matsuno, Tokyo, JP;

Assignee:

Keiwa Incorporated, Tokyo, JP;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Camie S Thompson

Int. Cl.
CPC ...
C04B 28/04 (2006.01); B32B 3/30 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 13/02 (2006.01); B32B 13/04 (2006.01); B32B 13/14 (2006.01); B32B 27/10 (2006.01); B32B 27/12 (2006.01); B32B 27/32 (2006.01); B32B 37/12 (2006.01); C04B 14/06 (2006.01); C04B 14/30 (2006.01); C04B 20/00 (2006.01); C04B 24/26 (2006.01); C04B 37/00 (2006.01); E01D 22/00 (2006.01); E04B 1/62 (2006.01); E04C 1/40 (2006.01); E04G 23/02 (2006.01); C04B 111/00 (2006.01); C04B 111/23 (2006.01); E21D 11/04 (2006.01);
U.S. Cl.
CPC ...
C04B 28/04 (2013.01); B32B 3/30 (2013.01); B32B 5/028 (2013.01); B32B 7/12 (2013.01); B32B 13/02 (2013.01); B32B 13/04 (2013.01); B32B 13/14 (2013.01); B32B 27/10 (2013.01); B32B 27/12 (2013.01); B32B 27/32 (2013.01); B32B 37/12 (2013.01); C04B 14/06 (2013.01); C04B 14/303 (2013.01); C04B 14/305 (2013.01); C04B 20/0048 (2013.01); C04B 24/2641 (2013.01); C04B 37/008 (2013.01); E01D 22/00 (2013.01); E04B 1/625 (2013.01); E04C 1/40 (2013.01); E04G 23/02 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2262/0223 (2013.01); B32B 2262/0246 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2307/5825 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/732 (2013.01); B32B 2419/00 (2013.01); C04B 2111/00612 (2013.01); C04B 2111/23 (2013.01); E21D 11/04 (2013.01);
Abstract

The present invention provides a structure protection sheet capable of dramatically reducing a construction period to place protective layers on surfaces of structures such as concrete, protecting the structures for a long time, preventing swelling phenomena caused by water vapor inside the concrete, and preventing a decrease in attachability. The present invention relates to a structure protection sheet including: a polymer cement cured layer on a side facing a structure; and a resin layer on the polymer cement cured layer, the structure protection sheet having a water vapor transmission rate of 10 to 50 g/m·day.

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