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:
Oct. 23, 2012
Filed:
Jun. 29, 2009
Applicants:
Yoshinori Negishi, Saitama, JP;
Genta Harada, Saitama, JP;
Hiroshi Yamanoi, Saitama, JP;
Inventors:
Assignee:
Adeka Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 9/00 (2006.01); C07D 413/00 (2006.01); C07D 251/00 (2006.01); C09K 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is an optical film characterized by containing 0.001-10 parts by mass of an ultraviolet absorbent represented by general formula (1) per 100 parts by mass of a cellulose ester. (In the formula, n represents an integer of 1-4; when n is 1, R represents an alkyl group having 3-30 carbon atoms, and when n is 2-4, R represents a residue obtained by removing a carboxylic acid group from an aliphatic or aromatic polybasic acid having 1-34 carbon atoms; and R1, R2, R3 and R4 independently represent a hydrogen atom or an alkyl group having 1-4 carbon atoms.)