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:
Feb. 03, 1998
Filed:
Aug. 21, 1995
Toshikazu Nishio, Tokyo, JP;
Hiroshi Kojima, Tokyo, JP;
Hisanori Ishida, Tokyo, JP;
Kazuko Etou, Tokyo, JP;
Hiroyuki Amemiya, Tokyo, JP;
Michiko Takeuchi, Tokyo, JP;
Eiji Ichinose, Chiba, JP;
Youichi Abe, Chiba, JP;
Hidenobu Ishikawa, Chiba, JP;
Dainippon Printing Co., Ltd., Tokyo, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
An ionizing radiation-curable resin composition which provides a cured product having no yield point in the stress-strain diagram in tension is disclosed. An optical article prepared from the ionizing radiation-curable resin composition and a surface light source using the optical article are also disclosed. The present invention provides an excellent ionizing radiation-curable resin composition, an excellent optical article comprising a cured product of the resin composition, and an excellent surface light source using the optical article, which have high surface hardness and a high refractive index and are free from deformation, permanent sets, and reduction in weather resistance after curing.