Process for the production of non-sticky thermofusible autoadhesive shapes
US5292468A · kind A · utility
16Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1991 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Apr 1, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0097
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the manufacture of a hot-melt, pressure-sensitive adhesive substance with surfces that are not sticky or self-adhesive, which includes casting such a substance in a mold that has been previously coated with a protective web created by spinning a hot-melt, non-pressure-sensitive adhesive and of protecting the surface of the casting with a similar web. For this purpose, fiberization nozzles are advantageously employed. These protective webs are very resistant and, since they participate in the solidity of the block, they make possible the flexible packaging of adhesives with a low mass mechanical strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.