Edge-Protection Tape
US-2017345959-A1 · Nov 30, 2017 · US
Double-sided adhesive tape
US9783704B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9783704-B2 |
| Application number | US-201214003746-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 20, 2012 |
| Priority date | Mar 9, 2011 |
| Publication date | Oct 10, 2017 |
| Grant date | Oct 10, 2017 |
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- Title
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Abstract
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A double-sided adhesive tape includes a substrate, and a thermosetting resin layer laminated on both sides of the substrate. The thermosetting resin layer contains a rubber-modified epoxy resin and a latent curing agent. The thermosetting resin layer has a flowtester viscosity at 40° C. and under a load of 20 Kg of 1000 Pa·s or more and 7000 Pa·s or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A double-sided adhesive tape comprising: a substrate having two sides, and a thermosetting resin layer laminated on both sides of the substrate, wherein each thermosetting resin layer contains a rubber-modified epoxy resin and a latent curing agent, wherein each thermosetting resin layer has a flowtester viscosity at 40° C. and under a load of 20 Kg of 1000 Pa·s or more and 7000 Pa·s or less, wherein the rubber-modified epoxy resin contains a liquid rubber-modified epoxy resin and a solid rubber-modified epoxy resin, wherein the liquid rubber-modified epoxy resin and the solid rubber-modified epoxy resin are blended at a ratio of 85:15 to 45:55, wherein the liquid rubber-modified epoxy resin is a liquid carboxyl-terminated modified butadiene-acrylonitrile copolymer modified epoxy resin, and wherein the solid rubber-modified epoxy resin is a solid carboxyl-terminated modified butadiene-acrylonitrile copolymer modified epoxy resin. 2. The double-sided adhesive tape according to claim 1 , wherein the latent curing agent contains a urea compound. 3. The double-sided adhesive tape according to claim 1 , wherein the substrate has a thickness of 25 μm or more. 4. The double-sided adhesive tape according to claim 1 , wherein as the latent curing agent, a urea compound and an amide compound are used together. 5. The double-sided adhesive tape according to claim 1 , wherein at least one thermosetting resin layer further contains a bisphenol A epoxy resin that is semisolid under normal temperature.
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Frequently asked questions
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- What does patent US9783704B2 cover?
- A double-sided adhesive tape includes a substrate, and a thermosetting resin layer laminated on both sides of the substrate. The thermosetting resin layer contains a rubber-modified epoxy resin and a latent curing agent. The thermosetting resin layer has a flowtester viscosity at 40° C. and under a load of 20 Kg of 1000 Pa·s or more and 7000 Pa·s or less.
- Who is the assignee on this patent?
- Fujii Takahiro, Mitsuoka Yoshiaki, Nitto Denko Corp
- What technology area does this patent fall under?
- Primary CPC classification C09J7/021. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 10 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).