Adhesive tape
US6280840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Apr 20, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2883
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Adhesive tape for a bond which can be redetached without residue or damage by pulling, having a backing coated on one or both sides with a self-adhesive composition, characterized in that PA1 a) a self-adhesive composition whose ratio of tear strength to stripping force (peel strength) at a peel angle of less than 10.degree. to the bond surface is greater than 1.2:1 is applied to at least one of the two sides of the backing, PA1 b) the backing has been subjected to controlled pretreatment/damaging in such a way that the detachment force (stripping force) is lower than that of a similar self-adhesive tape with a backing which has not been so pretreated/damaged, and PA1 c) the tear strength of the backing is insufficient for redetachment without residue or damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.