Adhesive tape cartridge, adhesive tape roll, and manufacturing method of adhesive tape roll
US10532907B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Sep 29, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/408
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An adhesive tape cartridge can include an adhesive tape roll that winds a double-faced adhesive tape. The double-faced adhesive tape includes a base material layer, a first adhesive layer, a second adhesive layer, a third adhesive layer, and a separation material layer. The first adhesive layer is disposed on one side of the base material layer and includes an adhesive with a first pigment added. The second adhesive layer is disposed on the one side of the first adhesive layer and includes an adhesive with a second pigment added. The third adhesive layer is disposed on the other side of the base material layer. The separation material layer is disposed on the other side of the third adhesive layer. A volume ratio of the first pigment in the first adhesive layer is greater than a volume ratio of the second pigment in the second adhesive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.