Multiple layered laminated strippable tape
US4351877A · kind A · utility
Inventor
Key dates
| Filing date | Oct 6, 1980 |
| Grant date | Sep 28, 1982 |
| Priority date | — |
| Expiry date | Oct 6, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A multiple layered laminated tape has an upper strength layer made of a film of pre-stretched polypropylene or the like which is laminated to a very weak lower carrier layer of relatively thin low internal bond Kraft paper. The carrier layer has a coating of a water soluble adhesive which is used to apply the tape to separable portions of a cardboard carton or the like. The carrier layer serves only as a medium to "carry" the water soluble adhesive and also to provide sufficient longitudinal rigidity to permit dispensing of the tape from a standard Kraft paper type tape dispensing machine. Stripping the tape from a carton pulls away the upper plastic layer and may split the Kraft carrier layer that has low internal bond, leaving only so thin a layer of Kraft on the carton that it can very easily be broken to permit opening of the carton.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.