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:
Aug. 12, 2025
Filed:
Feb. 19, 2021
Kaneka Corporation, Osaka, JP;
Yusuke Taguchi, Otsu, JP;
Toshifumi Matsumiya, Settsu, JP;
Fumiyasu Ishiguro, Settsu, JP;
Rika Mori, Settsu, JP;
Satoko Komatsu, Settsu, JP;
Hiroto Koma, Settsu, JP;
Masahiro Miyamoto, Settsu, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
A hard coat film includes a transparent resin film and a hard coat layer disposed on one surface thereof, the hard coat layer being composed of a cured product of a hard coat composition. The thickness of the hard coat layer 0.15 times or more the thickness of the transparent resin film. The hard coat composition has a negative cure shrinkage ratio. The absolute value of the amount of curl of the hard coat film cut into a 100 mm×100 mm square is 20 mm or less. The hard coat layer may contain a cured product of a polyorganosiloxane compound having an alicyclic epoxy group.