Pressure sensitive adhesive composition, pressure sensitive adhesive and pressure sensitive adhesive sheet
A pressure-sensitive adhesive sheet and pressure-sensitive adhesive technology, which are used in the fields of pressure-sensitive adhesive compositions, pressure-sensitive adhesives and pressure-sensitive adhesive sheets, and can solve the problem of cloudiness, insufficient improvement of stress relaxation, etc. problem, to achieve the effect of excellent stress relaxation, light leakage resistance and excellent durability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0126] 1. Process (1)
[0127] 97.0 parts by mass of n-butyl acrylate, 3.0 parts by mass of acrylic acid, 150.0 parts by mass of acetone, and 2,2'-azo 0.06 parts by mass of diisobutyronitrile, and the air in the reaction container was replaced with nitrogen. While stirring in this nitrogen atmosphere, the temperature of the reaction solution was raised to 60° C., and the reaction solution was allowed to react for 6 hours, and then cooled to room temperature. Here, GPC measurement was performed on a part of the obtained solution by the method described later, and it was confirmed that a copolymer (A) having a weight average molecular weight of 1,500,000 was produced. In addition, the conversion rate (a value obtained by dividing the mass of the copolymer obtained by polymerizing the monomers by the total mass of the monomers used as raw materials) at this time was 80%.
[0128] 2. Process (2)
[0129] To the solution in the copolymer (A) obtained by the above step (1), 150 p...
Embodiment 2～34
[0152] [Examples 2-34, Comparative Examples 1-6]
[0153] The reaction conditions were adjusted so that the conversion rate of the copolymer (A) was the value in Table 1, and at the same time, the addition amount of each monomer was changed so that the ratio of each monomer constituting the pressure-sensitive adhesive composition was the value in Table 1, Other than that, it carried out similarly to Example 1, and produced the polarizing plate with a pressure-sensitive adhesive layer.
Embodiment 35
[0155] By copolymerizing 97 parts by mass of butyl acrylate and 3 parts by mass of acrylic acid by a normal polymerization method, a copolymer (A) having a weight average molecular weight of 1.5 million (measured by GPC) was obtained. Similarly, a copolymer (B) having a weight average molecular weight of 40,000 (measured by GPC) was obtained by copolymerizing 90 parts by mass of butyl acrylate and 10 parts by weight of 2-hydroxyethyl acrylate.
[0156] 80 parts by mass of the obtained copolymer (A) and 20 parts by mass of the copolymer (B) were mixed, diluted with methyl ethyl ketone so that the solid content concentration would be 20%, and an acrylic polymer was obtained. Thereafter, in the same manner as in Example 1, a diluted solution of the pressure-sensitive adhesive composition was obtained. Then, using the diluted solution of this pressure-sensitive adhesive composition, it carried out similarly to Example 1, and produced the polarizing plate with a pressure-sensitive ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to view more - 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap