Low-volatility pressure sensitive adhesives
US5597648A · kind A · utility
6Cited by
11References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1991 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Oct 18, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2891
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Pressure sensitive adhesives (PSA) having a reduced volatile fraction content are provided by a process which comprises extracting a cured PSA with a fluid in or near its supercritical state. The process provides PSAs and articles containing PSAs which meet the volatility requirements of ASTM E-595. A silicone PSA transfer film having utility in outer space is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.