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. 21, 2014
Filed:
Jul. 13, 2009
Satoshi Kawamoto, Sodegaura, JP;
Kouichi Kizu, Narashino, JP;
Sunil Krzysztof Moorthi, Ichihara, JP;
Akira Sakai, Osaka, JP;
Satoshi Kawamoto, Sodegaura, JP;
Kouichi Kizu, Narashino, JP;
Sunil Krzysztof Moorthi, Ichihara, JP;
Akira Sakai, Osaka, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Sharp Corporation, Osaka-Shi, Osaka, JP;
Abstract
An optical resin comprises a copolymer of 4-methyl-1-pentene and at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene and 4,4-dimethyl-1-pentene. The content of a constituent unit (a) derived from 4-methyl-1-pentene is equal to or more than 60 mol % and equal to or less than 99 mol %, and the total content of a constituent unit (b) derived from at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene and 4,4-dimethyl-1-pentene is equal to or more than 1 mol % and equal to or less than 40 mol %.