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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 11059998 B1

PDFFull Text
Date of Patent:
Jul. 13, 2021

Filed:

Jul. 27, 2016

Waterproof sheet and waterproofing method including using same

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Takao Uno, Annaka, JP;

Hisaharu Yamaguchi, Annaka, JP;

Masahiro Yoda, Annaka, JP;

Takeshi Nakajima, Tokyo, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Shawn Mckinnon

Int. Cl.
CPC ...
C09J 7/25 (2018.01); B29C 65/48 (2006.01); B29C 65/00 (2006.01); C09J 9/00 (2006.01); E01D 19/10 (2006.01); E01C 11/02 (2006.01); E04B 1/68 (2006.01); C09J 183/04 (2006.01); B32B 25/20 (2006.01); E04D 5/10 (2006.01); B32B 5/02 (2006.01); E01C 11/10 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 25/10 (2006.01); B65D 90/06 (2006.01); E02D 27/38 (2006.01); B29K 83/00 (2006.01); B29K 105/08 (2006.01); C08K 7/02 (2006.01); C08K 7/14 (2006.01);
U.S. Cl.
CPC ...
C09J 7/25 (2018.01); B29C 65/4825 (2013.01); B29C 66/72141 (2013.01); B32B 5/024 (2013.01); B32B 7/12 (2013.01); B32B 25/10 (2013.01); B32B 25/20 (2013.01); B32B 27/08 (2013.01); B65D 90/06 (2013.01); C09J 9/00 (2013.01); C09J 183/04 (2013.01); E01C 11/02 (2013.01); E01C 11/10 (2013.01); E01D 19/10 (2013.01); E01D 19/103 (2013.01); E02D 27/38 (2013.01); E04B 1/6803 (2013.01); E04D 5/10 (2013.01); B29K 2083/00 (2013.01); B29K 2105/0845 (2013.01); B29K 2995/0069 (2013.01); B32B 2255/10 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2307/412 (2013.01); B32B 2307/50 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/582 (2013.01); B32B 2307/5825 (2013.01); B32B 2307/712 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/732 (2013.01); B32B 2419/00 (2013.01); C08K 7/02 (2013.01); C08K 7/14 (2013.01); C09J 2301/122 (2020.08); C09J 2301/302 (2020.08); C09J 2301/41 (2020.08); C09J 2400/143 (2013.01); C09J 2483/00 (2013.01); C09J 2483/006 (2013.01);
Abstract

A waterproof sheet which is for application to a site to be waterproofed in order to prevent rainwater infiltration thereinto and retard deteriorations which proceed with time, the waterproof sheet comprising: a base layer that comprises a silicone rubber composition reinforced with reinforcing fibers and that has physical properties including high strength; and a pressure-sensitive silicone adhesive layer that has been formed on one surface of the base layer and that has a low hardness and is highly tacky. The waterproof sheet provided by the present invention less breaks than conventional waterproof sheets because of the reinforcement layer, and can conform to cracks or dislocations occurring in the surfaces to which the waterproof sheet has been applied, due to the pressure-sensitive adhesive layer formed on one surface. Since the waterproof sheet includes silicones as main components and is hence excellent in terms of weatherability, heat resistance, and freeze resistance, this waterproof sheet can retain the function required of waterproof sheets, over a longer period.

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