Process of making an adhesive coated article
US4973497A · kind A · utility
2Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1987 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Nov 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2401/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated substrate such as an adhesive tape is produced by applying to a substrate a solution of a mixture of a rubber (eg. natural rubber) and a tackifier (eg. a petroleum resin) dissolved in a solvent (eg heptane) wherein the solution, prior to its application to the substrate, has been subjected to evaporation in a thin film evaporator so that the concentration of rubber and tackifier in the solvent is at least 35, usually at least 45 weight percent so enabling faster coating speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.