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:
Jan. 06, 2015
Filed:
Aug. 06, 2009
Shinya Hattori, Tochigi, JP;
Hiroto Nakano, Tochigi, JP;
Akira Kamoi, Tochigi, JP;
Naomi Furue, Tochigi, JP;
Shuhei Masuda, Tochigi, JP;
Hideki Miyazaki, Tochigi, JP;
Masahito Saito, Tochigi, JP;
Shinya Hattori, Tochigi, JP;
Hiroto Nakano, Tochigi, JP;
Akira Kamoi, Tochigi, JP;
Naomi Furue, Tochigi, JP;
Shuhei Masuda, Tochigi, JP;
Hideki Miyazaki, Tochigi, JP;
Masahito Saito, Tochigi, JP;
Nippon Carbide Industries Co., Inc., Tokyo, JP;
Abstract
A pressure-sensitive adhesive composition which is excellent in durability under high temperature and humidity conditions and can thus inhibit bright defect even when applied to a large-sized optical film; a pressure-sensitive adhesive; and an optical film. A pressure-sensitive adhesive composition including an acrylic copolymer (A) bearing a reactive functional group, an acrylic copolymer (B) and an isocyanate compound (C), wherein the quantity of the isocyanate compound (C) is 5 to 30 parts by weight per 100 parts by weight of a mixture of the acrylic copolymer (A) and the acrylic copolymer (B) and the elongation at break and 200% modulus as determined at 25 degrees C. by the tensile test are 300 to 1000% and 0.2 to 3 N/mmrespectively.