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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 10196545 B1

PDFFull Text
Date of Patent:
Feb. 05, 2019

Filed:

May. 23, 2016

Shielding film and shielded printed wiring board

Applicant:

Tatsuta Electric Wire & Cable Co., Ltd., Higashiosaka-shi, Osaka, JP;

Inventors:

Kouji Takami, Higashiosaka, JP;

Yoshihisa Yamamoto, Higashiosaka, JP;

Kenji Kamino, Higashiosaka, JP;

Assignee:

TATSUTA ELECTRIC WIRE & CABLE CO., LTD., Osaka, JP;

Attorneys:

Potomac Law Group, PLLC

Kenneth Fagin

Primary Examiner:

Elizabeth E Mulvaney

Int. Cl.
CPC ...
B32B 3/00 (2006.01); C09J 7/30 (2018.01); B32B 15/08 (2006.01); B32B 15/092 (2006.01); H05K 1/02 (2006.01); C09J 7/28 (2018.01); B32B 7/12 (2006.01); B32B 15/04 (2006.01); C09J 9/02 (2006.01); C09J 153/00 (2006.01); C09J 163/00 (2006.01); H05K 9/00 (2006.01); C08K 3/32 (2006.01);
U.S. Cl.
CPC ...
C09J 7/30 (2018.01); B32B 7/12 (2013.01); B32B 15/04 (2013.01); B32B 15/08 (2013.01); B32B 15/092 (2013.01); C09J 7/28 (2018.01); C09J 9/02 (2013.01); C09J 153/00 (2013.01); C09J 163/00 (2013.01); H05K 1/02 (2013.01); H05K 1/0216 (2013.01); H05K 9/0086 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/212 (2013.01); B32B 2457/08 (2013.01); C08K 3/32 (2013.01); C08K 2201/001 (2013.01); C09J 2201/602 (2013.01); C09J 2201/622 (2013.01); C09J 2203/326 (2013.01); C09J 2205/102 (2013.01); C09J 2400/163 (2013.01); C09J 2453/00 (2013.01); C09J 2463/00 (2013.01);
Abstract

There is provided a shielding film that simultaneously satisfies excellent high-speed transmission characteristics and excellent flame retardancy. A shielding film according to the present invention includes: a metal layer; and a conductive adhesive layer arranged on one side of the metal layer. The conductive adhesive layer contains a cured product of an epoxy resin and a carboxyl group-containing elastomer, an organic phosphorus-based flame retardant, and a conductive filler; the metal layer has a thickness of from 0.3 μm to 7 μm; and a conductive adhesive forming the conductive adhesive layer contains 10 parts by weight to 50 parts by weight of the organic phosphorus-based flame retardant and 10 parts by weight to 80 parts by weight of the conductive filler with respect to 100 parts by weight of a total of the epoxy resin and the carboxyl group-containing elastomer.

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