Method of increasing the gas transmission rate of a film
US7163967B2 · kind B2 · utility
5Cited by
23References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2003 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Dec 1, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249945
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of increasing the gas transmission rate of a packaging film comprises providing a packaging film that comprises at least about 0.001 weight % of single-walled carbon nanotube material based on the weight of the film. The packaging film is exposed to an amount of radiation energy effective to increase the oxygen transmission rate of the packaging film by at least about 100 cc (STP)/m2. day (1 atm, 0% RH, 23° C.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.