OPTICAL FILM, PROTECTIVE FILM FOR POLARIZING PLATES, AND POLARIZING PLATE

Title:

OPTICAL FILM, PROTECTIVE FILM FOR POLARIZING PLATES, AND POLARIZING PLATE

Document Type and Number:

WIPO Patent Application WO/2020/026960

Kind Code:

A1

Abstract:

An optical film according to the present invention comprises a (meth)acrylic resin having a weight average molecular weight of 200,000 or more, rubber particles and organic microparticles each having a glass transition temperature of 80°C or higher. Each of the rubber particles has a core part which comprises a crosslinked polymer having a glass transition temperature of -15°C or lower and a shell part which covers the core part. The optical film has a glass transition temperature (Tg) of 110°C or higher and a breaking elongation of 10% or more at -40°C as measured in accordance with JIS K 7127.

More Like This:

WO/2020/039970	MANUFACTURING METHOD OF CUT FILM, CUT FILM, AND FILM FOR CUT FILM
JP2005140877	OPTICAL ELEMENT, MANUFACTURING METHOD OF OPTICAL ELEMENT, AND LIQUID CRYSTAL DISPLAY USING OPTICAL ELEMENT
JP7056701	Optical laminate and its manufacturing method, front plate, and image display device

Inventors:

SAITO KOICHI

Application Number:

PCT/JP2019/029333

Publication Date:

February 06, 2020

Filing Date:

July 26, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KONICA MINOLTA INC (JP)

International Classes:

G02B5/30; C08F220/16

Domestic Patent References:

WO2011138913A1	2011-11-10
WO2015159645A1	2015-10-22
WO2015033556A1	2015-03-12
WO2011162188A1	2011-12-29

Attorney, Agent or Firm:

WASHIDA & ASSOCIATES (JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: RESIN SUBSTRATE, AND METHOD FOR MANUFACTURING RESIN SUBSTRATE

Next Patent: BATTERY SYSTEM, ELECTRIC VEHICLE PROVIDED WITH BATTERY SYSTEM, AND POWER STORAGE DEVICE