Photocurable adhesive, polarizing plate, and laminate optical member

A light-curable, adhesive technology, applied in the direction of polarizing elements, optical elements, adhesive types, etc., can solve the problems of high moisture permeability, low moisture permeability, insufficient adhesive strength, etc., and achieve excellent thermal shock resistance , The storage modulus is improved, and the effect of improving the bonding strength
CN103443236AActive Publication Date: 2013-12-11SUMITOMO CHEM CO LTD +1
6 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUMITOMO CHEM CO LTD
Publication Date
2013-12-11

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

Provided is a photocurable adhesive for pasting a protective film comprising a transparent resin onto a polarizer comprising a polyvinyl alcohol resin film, wherein the photocurable adhesive contains 100 parts by weight of a photo cation curable component (A) and 1-10 parts by weight of a photo cation polymerization initiator (B), the photo cation curable component (A) containing the following (A1)-(A3) at the following amounts relative to the total amount thereof: 60-75 wt% of an alicyclic diepoxy compound (A1) represented by formula (I); 5-35 wt% of a diglycidyl compound (A2) represented by formula (II); and 2-15 wt% of a monofunctional epoxy compound (A3) represented by formula (III).
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a photocurable adhesive for laminating a polarizer made of a polyvinyl alcohol-based resin film in which a dichroic dye is adsorbed and oriented, and a protective film made of a transparent resin; A polarizing plate in which a protective film is bonded to a polarizer with an adhesive; and a laminated optical member in which other optical layers such as a retardation film are laminated on the polarizing plate. Background technique

[0002] A polarizing plate can be used as one of optical components constituting a liquid crystal display device. Generally, a polarizing plate has a structure in which a protective film is laminated on both surfaces of a polarizer, and is incorporated into a liquid crystal display device. There is also known a polarizing plate in which a protective film is provided on only one side of the polarizer, but in many cases, a layer having other optical functions, not just a protective film, but al...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More