Hot melt composition
US-2022145142-A1 · May 12, 2022 · US
Hot melt adhesive sheet and decorative sheet with adhesive layer
US11999880B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11999880-B2 |
| Application number | US-201916971538-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 20, 2019 |
| Priority date | Feb 22, 2018 |
| Publication date | Jun 4, 2024 |
| Grant date | Jun 4, 2024 |
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- Title
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- Abstract
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Abstract
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Provided is a hot melt adhesive sheet comprising a hot melt adhesive that comprises a styrene-based block copolymer and a tackifier, in which the styrene-based block copolymer comprises a hard segment composed of a polystyrene block and a soft segment composed of a constituent unit derived from propylene.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hot melt adhesive sheet comprising an adhesive layer consisting only of a hot melt adhesive, wherein the hot melt adhesive consists only of a styrene-ethylene-ethylene-propylene-styrene block copolymer and a hydrogenated aromatic petroleum resin as a tackifier. 2. The hot melt adhesive sheet according to claim 1 , wherein a content of the hydrogenated aromatic petroleum resin in the hot melt adhesive based on 100 mass parts of the styrene-ethylene-ethylene-propylene-styrene block copolymer is 70 mass parts or more and 140 mass parts or less. 3. A decorative sheet with adhesive layer having an adhesive layer formed on one side of a decorative sheet, wherein the adhesive layer consists only of a hot melt adhesive, the hot melt adhesive consists only of a styrene-ethylene-ethylene-propylene-styrene block copolymer and a hydrogenated aromatic petroleum resin as a tackifier. 4. The decorative sheet with adhesive layer according to claim 3 configured to be used for adhesion to an adherend in which at least a surface of the adherend, to which the adhesive layer is adhered, is composed of a resin composition comprising a polypropylene resin. 5. The decorative sheet with adhesive layer according to claim 3 , wherein a content of the hydrogenated aromatic petroleum resin in the hot melt adhesive based on 100 mass parts of the styrene-ethylene-ethylene-propylene-styrene block copolymer is 70 mass parts or more and 140 mass parts or less.
Assignees
Inventors
Classifications
- C09J153/02Primary
Vinyl aromatic monomers and conjugated dienes · CPC title
using interposed adhesives or interposed materials with bonding properties · CPC title
comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers · CPC title
comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} · CPC title
characterised by their carriers · CPC title
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Frequently asked questions
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- What does patent US11999880B2 cover?
- Provided is a hot melt adhesive sheet comprising a hot melt adhesive that comprises a styrene-based block copolymer and a tackifier, in which the styrene-based block copolymer comprises a hard segment composed of a polystyrene block and a soft segment composed of a constituent unit derived from propylene.
- Who is the assignee on this patent?
- Nitto Shinko Corp, Nitto Denko Corp
- What technology area does this patent fall under?
- Primary CPC classification C09J153/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 04 2024 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).