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:
Dec. 21, 2021
Filed:
Dec. 20, 2019
Applicant:
Bando Chemical Industries, Ltd., Hyogo, JP;
Inventors:
Yutaka Kamada, Hyogo, JP;
Masahiro Yamaguchi, Hyogo, JP;
Assignee:
BANDO CHEMICAL INDUSTRIES, LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/44 (2006.01); G02B 1/04 (2006.01); G02B 1/14 (2015.01); C08J 5/18 (2006.01); C08G 18/32 (2006.01); C08G 18/75 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); C08G 18/3206 (2013.01); C08G 18/44 (2013.01); C08G 18/755 (2013.01); C08J 5/18 (2013.01); G02B 1/04 (2013.01); C08J 2375/04 (2013.01); C08J 2375/06 (2013.01); Y10T 428/24355 (2015.01);
Abstract
There is provided a surface protective film having an excellent writing sensation when a touch pen is used. A surface protective film has a protective layer made of a polyurethane on the outermost surface, and the protective layer has an arithmetic average roughness (Ra) of 0.3 μm or more and 0.6 μm or less, and a maximum height (Rz) of 1.5 μm or more and 3.5 μm or less.