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.:
Date of Patent:
May. 28, 2024
Filed:
May. 29, 2018
Applicant:
Bando Chemical Industries, Ltd., Hyogo, JP;
Inventors:
Yutaka Kamada, Hyogo, JP;
Arata Tani, Hyogo, JP;
Toshihiko Horie, Saitama, JP;
Soh Kato, Saitama, JP;
Assignee:
BANDO CHEMICAL INDUSTRIES, LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09J 7/29 (2018.01); B32B 7/12 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); C09J 7/20 (2018.01); C09J 7/25 (2018.01); C09J 7/40 (2018.01); G02B 1/14 (2015.01);
U.S. Cl.
CPC ...
C09J 7/29 (2018.01); B32B 7/12 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); C09J 7/201 (2018.01); C09J 7/25 (2018.01); C09J 7/405 (2018.01); G02B 1/14 (2015.01); B32B 2307/748 (2013.01); B32B 2571/00 (2013.01); C09J 2203/326 (2013.01); C09J 2475/006 (2013.01);
Abstract
The present invention addresses the problem of providing a surface protection film which provides an excellent writing sensation when a touch pen is used thereon and excellent scratch resistance against a touch pen. As a solution, provided is a surface protection film which has on the outermost surface thereof a protection layer formed of a polyurethane, wherein the polyurethane has an international rubber hardness degree (IRHD) of 87.0-98.0 and a tan δ peak value of 0.6 or more.