Title:
防水層のピンホール検査が可能な防水構造
Document Type and Number:
Japanese Patent JP7121177
Kind Code:
B2
Abstract:
To provide a waterproof structure capable of inspecting a pinhole of a waterproof layer by generating a spark at a place where a pinhole of the waterproof layer is present using a high-voltage flaw detector.SOLUTION: The waterproof structure includes a waterproof layer and a conductive primer layer. The conductive primer layer consists of a cured product of a conductive primer. The conductive primer contains a binder resin and a conductive filler. The surface electrical resistance measured according to JIS K6911 of the conductive primer is 1×102 to 1×106 Ω. The viscosity of the conductive primer is 10 to 4000 mPa s. The binder resin is an asphalt-based binder resin. The conductive filler is Ketjen Black with a BET specific surface area of 800 to 1300 m2/g. The content of the conductive filler is 0.5 to 5.0 pts.mass with respect to 100 pts.mass of the binder resin. The thickness of the conductive primer layer is 20 to 500 μm.SELECTED DRAWING: Figure 1
Inventors:
Hiroaki Tamaru
Kamei Masahiro
Abe Kazuhiro
Kamei Masahiro
Abe Kazuhiro
Application Number:
JP2021155985A
Publication Date:
August 17, 2022
Filing Date:
September 24, 2021
Export Citation:
Assignee:
Tajima Roofing Co., Ltd.
International Classes:
E04D5/00; E04D7/00
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Foreign References:
| US5850144 |
Attorney, Agent or Firm:
Aoki Atsushi
Shinji Mihashi
Kazuhiro Nakamura
Nobuo Sekine
Atsushi Ebiya
Shinji Mihashi
Kazuhiro Nakamura
Nobuo Sekine
Atsushi Ebiya
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