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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 11383307 B1

PDFFull Text
Date of Patent:
Jul. 12, 2022

Filed:

Aug. 31, 2016

Entry sheet for drilling and method for drilling processing using same

Applicant:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Inventors:

Takayuki Kamei, Yonezawa, JP;

Yousuke Matsuyama, Yonezawa, JP;

Takaaki Ogashiwa, Yonezawa, JP;

Assignee:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Attorney:

Fitch, Even, Tabin & Flannery LLP

Primary Examiner:

Maria V Ewald

Assistant Examiner:

Ethan Weydemeyer

Int. Cl.
CPC ...
B23B 41/14 (2006.01); B23B 47/28 (2006.01); B26F 1/16 (2006.01); C10M 107/28 (2006.01); B23B 35/00 (2006.01); H05K 3/00 (2006.01); C10M 111/04 (2006.01); C10N 20/04 (2006.01); C10N 40/22 (2006.01); C10N 50/02 (2006.01); C10M 107/04 (2006.01); C10M 107/34 (2006.01); C10M 107/36 (2006.01);
U.S. Cl.
CPC ...
B23B 41/14 (2013.01); B23B 35/00 (2013.01); B23B 47/28 (2013.01); B26F 1/16 (2013.01); C10M 107/28 (2013.01); C10M 111/04 (2013.01); H05K 3/0047 (2013.01); C10M 107/04 (2013.01); C10M 107/34 (2013.01); C10M 107/36 (2013.01); C10M 2201/066 (2013.01); C10M 2205/0206 (2013.01); C10M 2207/283 (2013.01); C10M 2207/289 (2013.01); C10M 2209/0845 (2013.01); C10M 2209/103 (2013.01); C10M 2209/104 (2013.01); C10M 2209/105 (2013.01); C10M 2209/108 (2013.01); C10M 2209/123 (2013.01); C10M 2217/024 (2013.01); C10N 2020/04 (2013.01); C10N 2040/22 (2013.01); C10N 2050/02 (2013.01); H05K 2203/0214 (2013.01);
Abstract

An entry sheet for drilling comprising: a metallic foil; and a layer of a resin composition on at least one surface of the metallic foil, the resin composition comprising a polyolefin resin (A) and a water-soluble resin (B), wherein a content of the polyolefin resin (A) is 25 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the total of the polyolefin resin (A) and the water-soluble resin (B), a content of the water-soluble resin (B) is 50 parts by mass or more and 75 parts by mass or less based on 100 parts by mass of the total of the polyolefin resin (A) and the water-soluble resin (B), and the water-soluble resin (B) comprises a high-molecular-weight water-soluble resin (B-) having a weight average molecular weight of 2×10or higher and 1.5×10or lower.

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