Transparent double-sided self-adhesive sheet
a self-adhesive sheet, transparent technology, applied in the direction of film/foil adhesives, instruments, other domestic objects, etc., can solve the problems of poor long-term reliability, in addition to workability and step-conforming ability, and the inability to use self-adhesive sheets for applications that require optical transmissibility, etc., to achieve excellent workability and excellent conformability.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
example 1
[0111]With respect to 1 kg of acrylic acid ester copolymer A (Mw=500,000, Mn=62,000, Mw / Mn=8, theoretical Tg: −50° C.) comprising 75 parts by mass of 2-ethylhexyl acrylate (homopolymer Tg: −70° C.), 20 parts by mass of vinyl acetate (homopolymer Tg: 32° C.) and 5 parts by mass of acrylic acid (homopolymer Tg: 106° C.), which had been randomly copolymerized, 150 g of the ultraviolet curable resin propoxylated pentaerythritol triacrylate (ATM-4PL, manufactured by Shin-Nakamura Chemical Co., Ltd.) as a crosslinker and 7 g of 4-methylbenzophenone as a photopolymerization initiator were mixed to prepare an intermediate resin layer composition.
[0112]The intermediate resin layer composition was coated with an applicator onto a release-treated polyethylene terephthalate film (“NP50A”, manufactured by PANAC Corporation; thickness: 50 μm) so as to have a thickness of 130 μm and then the surface was covered with a release-treated polyethylene terephthalate film (E7006, manufactured by Toyobo C...
example 2
[0117]A transparent double-sided self-adhesive sheet (thickness: 160 μm; B-1 / A-2 / B-1=35 / 90 / 35) was prepared in a similar manner to Example 1, except that an intermediate resin layer (A-2) was used, a 90 μm sheet from a block copolymer (“LA2250”, manufactured by Kuraray Co., Ltd.) comprising butyl acrylate (Tg: −56° C.) and methyl methacrylate (Tg: 105° C.), which was melted and shaped in the form of a sheet.
example 3
[0118]The intermediate resin layer composition and the pressure-sensitive adhesive layer composition used in Example 1 were melt-co-extruded so as to have pressure-sensitive adhesive layer composition / intermediate resin layer composition / pressure-sensitive adhesive layer composition, and at the same time as this was superposed onto the release-treated side of a release-treated polyethylene terephthalate film (“MRF75”, manufactured by Mitsubishi Plastics, Inc.) to be shaped in the form of a 250 μm-thick sheet, it was covered by superposing the release-treated side of a polyethylene terephthalate film to which a release-treatment had been applied (“E7006”, manufactured by Toyobo Co., Ltd.). Next, 1300 mJ of ultraviolet light was irradiated from both the front and back sides with a high-pressure mercury lamp through these polyethylene terephthalate films to crosslink the intermediate resin layer composition and the pressure-sensitive adhesive layer composition and produce a self-adhesi...
PUM
Property | Measurement | Unit |
---|---|---|
temperature | aaaaa | aaaaa |
frequency | aaaaa | aaaaa |
thickness | 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