Pressure sensitive linerless label assemblies with dry release
US6099943A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Apr 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Pressure sensitive adhesive linerless label assemblies having a primer layer and a breakaway layer capable of being separated from each other after the label is applied to a surface, thus leaving a portion of the assembly on the surface and removing the other portion. In one embodiment, the primer layer is an ethylene/acrylic acid copolymer and the breakaway layer is polyvinyl acetate. In another embodiment, the primer layer is a polyethylene emulsion and the breakaway layer is a polyurethane emulsion. In a third embodiment, the primer layer is a composition of a UV curable bisphenol A epoxy oligomer, pentaerythritol triacrylate, and a monofunctional styrene monomer, and the breakaway layer is polyvinyl acetate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.