Title:
光学フィルム用ドープの製造方法および光学フィルムの製造方法
Document Type and Number:
Japanese Patent JP7379933
Kind Code:
B2
Abstract:
To provide a method for manufacturing an optical film dope, capable of suppressing the aggregation of rubber particles and providing an optical film having sufficient toughness without spoiling transparency.SOLUTION: The method for manufacturing an optical film dope comprises the steps of: dispersing rubber particles including a crosslinked polymer having the degree of crosslinking of 0.25-4 mass% in a first solvent to prepare a rubber particle dispersion; and mixing the rubber particle dispersion, a methacrylic resin and a second solvent to prepare a dope. At least one of the first solvent and the second solvent includes water, and the water content is 0.5-3 mass% relative to the solvent constituting the dope.SELECTED DRAWING: None
Inventors:
Shiori Sato
Application Number:
JP2019153179A
Publication Date:
November 15, 2023
Filing Date:
August 23, 2019
Export Citation:
Assignee:
Konica Minolta, Inc.
International Classes:
G02B5/30; C08J3/02; C08L33/04
Domestic Patent References:
| JP2009084574A | ||||
| JP2000178399A | ||||
| JP2017181990A | ||||
| JP2015210474A | ||||
| JP2014084362A | ||||
| JP2016186061A | ||||
| JP2001343526A | ||||
| JP2001183528A |
Foreign References:
| WO2018168960A1 | ||||
| WO2013035273A1 | ||||
| WO2015159645A1 | ||||
| WO2015076101A1 | ||||
| WO2017175674A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Washida International Patent Office
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