Title:
OPTICAL FILM AND MANUFACTURING METHOD OF OPTICAL FILM
Document Type and Number:
Japanese Patent JP2020190686
Kind Code:
A
Abstract:
To provide an optical film and a manufacturing method of the optical film capable of preventing peeling of a polarizer when used as a polarizing plate protection film, deterioration of a polarizer under durable conditions of moisture and heat, and deterioration of slidability and haze (especially, internal haze) affecting conveyance properties of a film.SOLUTION: An optical film containing an organic fine particle, and a polymer comprising an alicyclic hydrocarbon monomer having at least a polar group, or a polymer comprising at least a (meth) acrylic monomer contains a surface-active agent within a range of 0.01 to 1 ppm, the organic fine particle contains a polymer comprising at least a (meth) acrylic monomer, solubility of the surface-active agent to ethanol at 23°C is 0.2 to 10 mass%, solubility to dichloromethane is less than 7 mass%, and solubility to water is equal to or more than 7 mass%.SELECTED DRAWING: None
Inventors:
TAKIMOTO MASATAKA
HAGIWARA TATSUKI
REN RIEKO
HAGIWARA TATSUKI
REN RIEKO
Application Number:
JP2019097005A
Publication Date:
November 26, 2020
Filing Date:
May 23, 2019
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
G02B5/30; C08F265/06; C08L45/00; C08L65/00
Domestic Patent References:
| JP2006233055A | 2006-09-07 |
Foreign References:
| KR20100097512A | 2010-09-03 |
Attorney, Agent or Firm:
Gwangyang International Patent Office