Process for preparing improved oriented polymer films and tapes
US4857127A · kind A · utility
1Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1987 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Mar 25, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2323/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A postforming process for an oriented film or tape of polymer material, which process comprises subjecting at least one layer of such an oriented film or tape to a pressure greater than ambient pressure while heating the oriented film or tape at a temperature at which partial melting thereof occurs but which does not exceed 145.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.