Fluid activatable adhesives for glue-free, liner-free, labels for glass and plastic substrates and methods of use thereof
US9109144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Sep 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2813
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for applying a liner-free, or liner-less label, to a substrate, particularly glass or plastic (e.g., PET) substrates are described herein. The method includes applying an adhesive composition, such as a polymeric coating, to a label face sheet, activating the adhesive composition with an activating fluid, and contacting the label to the substrate. The activating fluid is preferably a mixture of water and one or more organic solvents, such as low molecular weight alcohols. In some embodiments, the labels exhibit a percent fiber tear greater than about 50, 55, 60, 65, 70, 75, 80, 85, 90, or 95% after one, two, three, four, or five minutes. In particular embodiments, the labels exhibits a percent fiber tear greater than 60, 65, 70, 75, 80, 85, 90, or 95% after two minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.