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:
Jun. 12, 2018
Filed:
Nov. 26, 2012
Toray Industries, Inc., Tokyo, JP;
Toray Advanced Film Co., Ltd., Tokyo, JP;
Tadashi Matsumoto, Otsu, JP;
Takashi Ichinomiya, Otsu, JP;
Kinzou Nakagawa, Takatsuki, JP;
Nanako Furuichi, Takatsuki, JP;
TORAY ADVANCED FILM CO., LTD., Tokyo, JP;
Abstract
A method is provided for fabricating a surface protection film that has no rolling defects such as blocking or wrinkling when rolled into a roll, and that, after the film is bonded to an adherend, is rolled into a roll, and stored for long periods of time, does not transfer unevenness or fisheyes on the back surface to the adherend. The surface protection film is fabricated as an elastomer by setting the arithmetical mean roughness (Ra) of the surface of a cold roller () to no more than 0.2 μm, and the ten point mean roughness (Rz) of the surface of a nip roller () to 2-8 μm and the mean distance (Sm) between protrusions and depressions thereof to no more than 90 μm.