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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 9287566 B1

PDFFull Text
Date of Patent:
Mar. 15, 2016

Filed:

Jun. 11, 2015

Anti-curl copper foil

Applicant:

Chang Chun Petrochemical Col., Ltd., Taipei, TW;

Inventors:

Jui-Chang Chou, Taipei, TW;

Kuei-Sen Cheng, Taipei, TW;

Yao-Sheng Lai, Taipei, TW;

Huei-Fang Huang, Taipei, TW;

Assignee:

CHANG CHUN PETROCHEMICAL CO., LTD., Taipei, TW;

Attorney:

Novak Druce Connolly Bove + Quigg LLP

Primary Examiner:

Sean P Cullen

Int. Cl.
CPC ...
H01M 4/133 (2010.01); H01M 4/64 (2006.01); H01M 4/66 (2006.01); H01M 4/70 (2006.01); H01M 4/587 (2010.01); C25D 1/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/661 (2013.01); C25D 1/04 (2013.01); H01M 4/133 (2013.01); H01M 4/587 (2013.01); H01M 2220/20 (2013.01);
Abstract

The present disclosure relates to an improved coated copper foil that exhibits anti-curl and anti-wrinkle properties; and to methods for manufacturing the foil. Typically, the copper foil of the instant disclosure has: (a) a shiny side; (b) a matte side, wherein the matte side has an MD gloss in the range of 330 to 620; (c) a difference in surface roughness (Rz) between the shiny side and the matte side in the range of 0.3 to 0.59 μm; and (d) a difference in tensile strength in the transverse direction of 1.2 kgf/mmor less.

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