Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Adhesive composition

A composition and adhesive technology, applied in the direction of adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve the problems of deterioration and weak weather resistance, and achieve less absorption and sufficient ultraviolet rays. The effect of absorption properties

Pending Publication Date: 2022-05-13
SUMITOMO CHEM CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among these components, liquid crystal compounds used in organic EL elements and liquid crystal cells often use compounds with weak weather resistance, so deterioration due to ultraviolet rays (UV) is likely to become a problem

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adhesive composition
  • Adhesive composition
  • Adhesive composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0354] (Example 1): Preparation of Adhesive Composition (1)

[0355] A crosslinking agent (F) (manufactured by Tosoh Co., Ltd.: trade name "CORONATE L ", isocyanate compound, solid content 75%) 0.3 part, silane compound (G) (manufactured by Shin-Etsu Chemical Co., Ltd.: trade name "KBM3066") 0.28 part, radical curable component (E) (Shin-Nakamura Chemical Co., Ltd. Made by the company: trade name "A-DPH-12E", 10 parts of hexafunctional (meth)acrylate compound), initiator (D) (manufactured by ADEKA Co., Ltd.: trade name "NCI-730", as oxime ester photoradical generator based on a compound) 1.5 parts, light selective absorption compound (B) (manufactured by Fujifilm Co., Ltd.; "FUV002B") 2.5 parts, light selective absorption compound (C-1) (manufactured by Otsuka Chemical Co., Ltd.: commercial product "RUVA-93", 2-[2'-hydroxy-5'-(methacryloyloxyethyl)phenyl]benzotriazole) 10 parts, and then make the solid content concentration 14% Ethyl acetate was added to obtain an adhesive c...

Embodiment 2～5 and comparative example 1～11

[0357] Except having changed each component and content of each component as shown in Table 1 or Table 2, it carried out similarly to Example 1, and produced the adhesive composition (2) - adhesive composition (16). In addition, the compounding quantity of a crosslinking agent is the mass part which is an active ingredient, and acrylic resin (A1) is the mass part of a solid content.

[0358] [Table 1]

[0359]

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

PUM

No PUM Login to View More

Abstract

The present invention provides an adhesive layer which has sufficient ultraviolet absorption performance even when the film thickness is reduced, the occurrence of bleed-out is reduced, and the absorption of visible light having a wavelength of about 420 nm is reduced, and provides an adhesive composition for forming the adhesive layer. The adhesive composition of the present invention comprises: a resin (A); a light selective absorption compound (B) that exhibits maximum absorption at a wavelength of 360 nm or more and satisfies formula (1) and formula (2); and at least one type selected from the group consisting of a monomer (C-1) having a polymerizable group in the molecule and exhibiting a maximum absorption at a wavelength of 300 nm or more and less than 360 nm and a resin (C-2) exhibiting a maximum absorption at a wavelength of 300 nm or more and less than 360 nm. [In formulae (1) and (2), epsilon (380) represents a gram-molecular absorption coefficient of the light selective absorption compound (B) at a wavelength of 380 nm, and epsilon (420) represents a gram-molecular absorption coefficient of the light selective absorption compound (B) at a wavelength of 420 nm. The unit of the gram molecule light absorption coefficient is L / (g.cm). ] epsilon (380) > = 25; (1) Epsilon (380) / Epsilon (420) > = 20 (2).

Description

technical field [0001] The present invention relates to a pressure-sensitive adhesive composition, a pressure-sensitive adhesive layer formed from the pressure-sensitive adhesive composition, and an optical laminate in which the pressure-sensitive adhesive layer is laminated. Background technique [0002] Display devices such as organic electroluminescent displays (organic EL display devices) and liquid crystal display devices (FPD: flat panel displays) use various members such as organic EL elements, display elements such as liquid crystal cells, and optical films such as polarizing plates. Among these members, since liquid crystal compounds used in organic EL elements and liquid crystal cells are often weak in weather resistance, deterioration due to ultraviolet rays (UV) tends to become a problem. In order to solve such a problem, Patent Document 1 describes an ultraviolet-absorbing (shielding) adhesive composition comprising an acrylic resin and a triazine-based ultravio...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09J7/38C09J4/02C09J4/06G02B5/22G02B5/30G02F1/1335
CPCC09J7/38C09J4/06C09J11/06G02B5/223G02B5/305G02F1/133528G02F1/133514C09J201/00G02B5/30H05B33/02G02B5/22C08K5/3475C09J2301/312
Inventor 浅津悠司西上由纪久门浩司
Owner SUMITOMO CHEM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com