Supercharge Your Innovation With Domain-Expert AI Agents!

Optical adhesive composition and optical adhesive film comprising adhesive layer containing thermally cured product of optical adhesive composition

一种粘合剂层、粘合剂的技术，应用在薄膜/薄片状的粘合剂、粘合剂类型、羧基橡胶粘合剂等方向，能够解决最终产品应用限制、难以形成固化结构或交联结构、难化学交联等问题，达到优异粘附特性和长期可靠性、优异耐水蒸气透过性和耐化学性、优异长期耐久性的效果

Active Publication Date: 2018-12-21
LG CHEM LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, adhesives containing a rubber-based resin as a base resin have a problem in that it is difficult to achieve chemical crosslinking through the curing process, and physical crosslinking needs to be used, so it is difficult to form a cured structure or crosslinking for ensuring sufficient durability. link structure
Also, the application of the final product may be limited due to these issues

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
  • Optical adhesive composition and optical adhesive film comprising adhesive layer containing thermally cured product of optical adhesive composition
  • Optical adhesive composition and optical adhesive film comprising adhesive layer containing thermally cured product of optical adhesive composition
  • Optical adhesive composition and optical adhesive film comprising adhesive layer containing thermally cured product of optical adhesive composition

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0154] Hereinafter, specific examples of the present invention will be presented. However, the embodiments described below are provided only to specifically illustrate or explain the present invention, and the present invention is not limited thereto.

preparation example 1

[0157] Step 1: In a 2L reactor (where nitrogen is refluxed and a cooling device is installed so as to adjust the temperature easily), 14% by weight of butadiene rubber (cis content is 97 mol%, BR1208, LG Chem) was dissolved in toluene for 6 hours, then the temperature was lowered to 35°C. Next, 10 parts by weight of a peroxide (mCPBA: m-chloroperoxybenzoic acid) was introduced into 100 parts by weight of butadiene rubber, and the resulting mixture was stirred at 35° C. for 4 hours. Next, 10 parts by weight of an aqueous hydrochloric acid solution having a concentration of 1N was put into 100 parts by weight of the rubber, and the resulting mixture was stirred at 35°C for 1 hour, then the temperature was raised to 90°C, and the mixture was stirred for 1 hour.

[0158] Step 2: Next, 3 parts by weight of acryloyloxyethyl isocyanate and 200 ppm of dibutyltin dilaurate (DBTDL) were put into 100 parts by weight of rubber, and the resulting mixture was kept at 80° C. for 3 hours.

...

preparation example 2

[0161] Step 1: The process was carried out under the same conditions and compositions as those in Preparation Example 1, except that 15 parts by weight of the peroxide (mCPBA: m-chloroperoxybenzoic acid) in Preparation Example 1 was introduced thereinto.

[0162] Step 2: Same as Step 2 in Preparation Example 1

[0163] Through these steps, a polybutadiene rubber having a structure of Chemical Formula 3, having a hydroxyl value of 5.79 mgKOH / g and containing 3% by weight of acrylate groups was prepared.

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

PropertyMeasurementUnit
hydroxyl valueaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
tensile modulusaaaaaaaaaa
Login to View More

Abstract

The present specification provides: an optical adhesive composition comprising a polybutadiene rubber in which a reactive group comprising at least one selected from the group consisting of a hydroxylgroup and a (meth)acrylate group is bound to the main chain; and an optical adhesive film comprising an adhesive layer containing a thermally cured product of the optical adhesive composition.

Description

technical field [0001] This specification claims priority and benefit from Korean Patent Application No. 10-2016-0049630 filed with the Korean Intellectual Property Office on April 22, 2016, the entire contents of which are incorporated herein by reference. [0002] The present invention relates to an adhesive composition for optical use and an adhesive film for optical use including an adhesive layer comprising a photocured product thereof. Background technique [0003] Touch materials including packaged electronic devices or transparent conductive films and the like require excellent touch sensitivity for achieving excellent operations. In addition, much recent interest has focused on developing adhesive compositions for improving the durability, flexibility, and optical properties of devices such as flexible touch screen panels. [0004] In general, adhesives used for flexible touch screen panels and the like need to secure optical characteristics such as flexibility, tr...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09J109/00C09J113/00C09J7/30C09J7/10
CPCC09J109/00C09J113/00C09J2203/318C09J7/10C08C19/38C09J2409/00C09J2301/312C09J7/20G02F1/1333C09J2301/408C09J7/30C09J2203/326
Inventor 徐光洙李周炫尹灿午金章淳
Owner LG CHEM LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com