Pressure-chromic tape and methods of making same
US8912119B2 · kind B2 · utility
4Cited by
19References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Jul 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2839
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Masking tapes that changes color when the tape is rubbed down or dispensed onto an adherend and methods of making such tapes are disclosed herein. The tape includes a backing, a layer of adhesive on the bottom surface of the backing, and a release structure on the top surface of the backing that includes a pressure-chromic indicator and a release layer. The pressure-chromic indicator is characterized in that it is not activated by the pressure applied during the manufacturing process, but is activated by the pressure applied when the tape is rubbed or dispensed onto an adherend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.