Food packaging stretch film
US6187449A · kind A · utility
22Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1995 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Dec 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A food packaging stretch film made of a resin containing substantially no chlorine and having a storage modulus (E') of from 5.0.times.10.sup.8 to 5.0.times.10.sup.9 dyn/cm.sup.2 and a loss tangent (tan .delta.) of from 0.2 to 0.8, as measured by dynamic viscoelasticity measurement at a frequency of 10 Hz at a temperature of 20.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.