Adhesive composition for optical member, adhesive layer for optical member and its producing method, optical member with adhesive, and image display device
A technology for optical components and adhesive layers, applied in the directions of bonding methods, adhesive types, ester copolymer adhesives, etc., can solve the problems of undisclosed changes over time, achieve low viscosity, improve coating Excellent effect of coating and punching processability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment
[0211] Example
[0212] Hereinafter, Examples and the like which specifically show the configuration and effects of the present invention will be described. Here, the evaluation items in Examples and the like were measured by the methods shown below.
[0213]
[0214] Molecular weights were determined using GPC (gel permeation chromatography).
[0215] Analytical device: Toso One Manufacturing Co., Ltd., HLC-8120GPC
[0216] column:
[0217] Sample column:
[0218] East One System, G7000H XL +GMH XL +GMH XL
[0219] Column size: each 7.8mmΦ×30cm (total 90cm)
[0220] Flow: 0.8ml / min
[0221] Injection sample concentration: about 0.1 wt%
[0222] Injection volume: 100μl
[0223] Column temperature: 40℃
[0224] Eluent: Tetrahydrofuran
[0225] Detector: Differential Refractometer (RI)
[0226] In addition, the molecular weight was calculated|required by polystyrene conversion.
[0227] In addition, the ratio (weight fraction (Area %)) of the component whose wei...
Embodiment I
[0230]
[0231] About 0.1 g of the pressure-sensitive adhesive layer immediately after the cross-linking treatment was taken out, and weighed to obtain the weight (W 1 ). Next, it was wrapped with a microporous tetrafluoroethylene membrane (membrane weight W 2 ), after immersion in about 50 ml of ethyl acetate for 2 days, the soluble components were extracted. It was dried, and the total weight (W 3 ). From these measured values, the gel ratio (% by weight) of the pressure-sensitive adhesive layer can be determined according to the following formula. In addition, the gel ratio after being stored at room temperature for 1 week after application was measured.
[0232] Gel ratio (wt%)=((W 3 -W 2 ) / W 1 )×100
[0233]
[0234] The viscosity evaluation of the prepared binder solution was measured under the following conditions with a rotational viscometer (Toki Sangyo Co., Ltd., model TBV-20H, equipped with a small sampling nozzle).
[0235] Measurement temperature: 24℃...
Embodiment I-1
[0248] (Preparation of acrylic polymer)
[0249] Into a four-necked flask equipped with a nitrogen introduction tube and a condenser tube, 80 parts by weight of butyl acrylate, 20 parts by weight of 2-ethylhexyl acrylate, 5 parts by weight of acrylic acid, 0.08 parts by weight of 2-hydroxyethyl acrylate, and 0.35 parts by weight of benzoyl oxide and 100 parts by weight of ethyl acetate were fully replaced with nitrogen, and then the polymerization reaction was carried out at 56° C. for 10 hours while stirring under a nitrogen stream to obtain weight average molecular weights of 2.2 million and 100,000. The following ratios are 2 wt % solutions of the acrylic polymer (1). The polymerization rate was 70%, and the polymer concentration after polymerization was 36% by weight.
[0250] (dilution of acrylic polymer)
[0251] With respect to 100 parts by weight of polymer solids in the acrylic polymer solution (concentration: 36% by weight), n-heptane (SP value: 15.2 [(J / cm) was ad...
PUM
Property | Measurement | Unit |
---|---|---|
Viscosity | aaaaa | aaaaa |
Viscosity | aaaaa | aaaaa |
Viscosity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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