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. 30, 2016
Filed:
Apr. 06, 2011
Kiyoshi Minoura, Osaka, JP;
Takao Imaoku, Osaka, JP;
Tokio Taguchi, Osaka, JP;
Seiichi Shimizu, Sayama, JP;
Ryuta Ooka, Sayama, JP;
Kiyoshi Minoura, Osaka, JP;
Takao Imaoku, Osaka, JP;
Tokio Taguchi, Osaka, JP;
Seiichi Shimizu, Sayama, JP;
Ryuta Ooka, Sayama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Soken Chemical & Engineering Co., Ltd., Tokyo, JP;
Abstract
The laminate of an embodiment is a laminate including an antireflection film and a protection film bonded onto the antireflection film, wherein the surface of the antireflection film includes a plurality of protrusions; the protection film includes a supporting film and an adhesive layer; the adhesive layer includes an adhesive agent, a copolymer, and a carboxyl group-containing monomer; the weight average molecular weight of the copolymer is 1000000 or more and 2000000 or less; the copolymer includes the (meth)acrylic acid alkyl ester with the alkyl group having 4 or less carbon atoms in the largest weight proportion among the monomer components; the acid number of the copolymer is 16 mg KOH/g or more and 120 mg KOH/g or less; and the mixing amount of the epoxy cross-linking agent in relation to 100 parts by weight of the copolymer is 1.5 parts by weight or more.