Method of making embossed oriented polymer films
US6585920B1 · kind B1 · utility
6Cited by
24References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embossed oriented thermoplastic films and a method of making same are described. The embossed oriented thermoplastic films have substantially the same mechanical properties as unembossed oriented thermoplastic films. The method includes providing an oriented thermoplastic film having first and second major surfaces, softening at least one of the first and second major surfaces to produce a softened surface, embossing the softened surface to produce an embossed oriented thermoplastic film, and cooling the embossed oriented thermoplastic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.