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:
Nov. 04, 2008
Filed:
Sep. 20, 2007
Hiroshi Samukawa, Tochigi, JP;
Kouki Hatsuda, Tochigi, JP;
Yoshito Ikeda, Tochigi, JP;
Hisashi Ando, Tochigi, JP;
Norikazu Yamamoto, Tochigi, JP;
Hiroshi Samukawa, Tochigi, JP;
Kouki Hatsuda, Tochigi, JP;
Yoshito Ikeda, Tochigi, JP;
Hisashi Ando, Tochigi, JP;
Norikazu Yamamoto, Tochigi, JP;
Sony Corporation, Tokyo, JP;
Sony Chemical & Information Device Corporation, Tokyo, JP;
Abstract
A resin composition having a viscosity suitable for encapsulating optical devices such as light-emitting devices is provided. Specifically, the cured product of the resin composition has a refractive index greater than or equal to that of epoxy resins, exhibits excellent heat resistance and light resistance, and has thermal stress relaxation properties. The curable resin composition contains a fluorene group-containing acrylate or methacrylate represented by the following formula and a specific monofunctional acrylate or methacrylate: wherein X is —(CHCHO)— or —(CHCHO)—CHCH(OH)CHO— with n being 1 to 5 and R is an acrylic or methacrylic group.