Removable adhesive tape with controlled sequential release
US6001471A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Double-sided stretchable adhesive tapes are described for use in conventional applications, particularly including the mounting or joining of an object to another surface. An improvement lies within the ability to control the timing of the debonding of both surfaces so that one adhesive surface releases before the other. The earlier release can be either on the object side or the surface side, depending on the desired effect. The present invention is applicable to all stretchable tape constructions including the use of plastic backing materials and/or elastic backing materials and allows such an object to be removed without risking substantial snap-back of the adhesive tape or catapulting of the object. The aforementioned advantages can be achieved by a double-sided adhesive tape having a stretchable backing layer, plastic or elastic, and having a lower-adhesion or non-adhesive portion of one adhesive surface, so that a corresponding greater adhesion adhesive portion of the other side remains more aggressively adhered to a surface during stretch removal while the portion of the one adhesive surface is less aggressively adhered or completely released from its surface. A non-adhesive…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.