US 10,029,449 B2 · Method for manufacturing one-sided thin polarizing plate

Abstract

The present invention relates to a method for manufacturing a single-faced thin polarizing plate, including: supplying a process film to one surface of a polarizer having a thickness of 50 μm or less; supplying a protection film to the other surface of the polarizer; forming an adhesive layer by supplying an adhesive composition between the polarizer and the protection film; pressing a laminate of the process film/the polarizer/the protection film by disposing a pair of pressing units on a surface of each of the process film and the protection film; and stripping the process film, in which stripping force between the polarizer and the process film is 1.0 N or less.

Claims13

Dependent claims

A method for manufacturing a single-faced thin polarizing plate, comprising:

supplying a process film to one surface of a polarizer having a thickness of 50 μm or less;
supplying a protection film to the other surface of the polarizer;
forming an adhesive layer by supplying an adhesive composition between the polarizer and the protection film;
pressing a laminate of the process film/the polarizer/the protection film by disposing a pair of pressing units on each surface of each of the process film and the protection film;
stripping the process film,
wherein stripping force between the polarizer and the process film is 1.0 N or less, and
wherein surface roughness (Ra) of the process film is 0.5 nm to 60 nm.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/024,561Filed 29 Aug 2014

Priority

KR 10-2013-011704730 Sep 2013

Published

US 2016/0229170 A111 Aug 2016

Granted

24 Jul 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification30 codes

B32B 38/10
Ancillary operations in connection with laminating processes: removing layers, or parts of layers, mechanically or chemically
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 23/08
Comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a…: of…
B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin

Method for manufacturing one-sided thin polarizing plate

Life of this patent

Method for manufacturing one-sided thin polarizing plate

Life of this patent

Abstract

Claims13