Title:
光学フィルム、光学フィルムの製造方法及び偏光板
Document Type and Number:
Japanese Patent JP6710967
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a thin-film optical film that excels in physical properties (ultraviolet absorption, surface roughness performance), an optical film manufacturing method that excels in dope stability and continuous production suitability, and a polarizer, equipped with the optical film, that excels in light fastness (ultraviolet resistance).SOLUTION: The optical film contains a cycloolefin resin, an ultraviolet absorber, and a matting agent, in which (A) the cycloolefin resin is a polymer consisting of a cycloolefin monomer having a structure represented by general formula (A), (B) the total content of the ultraviolet absorber and matting agent is within a range of 3.0-10.0 mass%, (C) the content of the matting agent is within a range of 0.10-5.00 mass%, (D) the value of mass radio of the ultraviolet absorber to the matting agent is 1.00 or greater, and (E) the film thickness is within a range of 3-30 μm.SELECTED DRAWING: None
Inventors:
Masataka Takimoto
Morii Sato
Takagi Takagi
Morii Sato
Takagi Takagi
Application Number:
JP2015252895A
Publication Date:
June 17, 2020
Filing Date:
December 25, 2015
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
G02B5/30; B32B7/023; B32B27/32; C08J5/18; C08K3/36; C08K5/3475; C08K5/3495; C08L45/00
Domestic Patent References:
| JP2008191217A | ||||
| JP2005103815A | ||||
| JP2014132071A | ||||
| JP2008216418A |
Foreign References:
| US20070075449 |
Attorney, Agent or Firm:
Gwangyang International Patent Office