Multilayer, heat-shrinkable film comprising a plurality of microlayers
US8409697B2 · kind B2 · utility
2Cited by
43References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jun 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24975
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A multilayer, heat-shrinkable film generally includes at least one bulk layer and a microlayer section comprising at least 10 microlayers, each of which has a thickness ranging from about 0.001 to 0.015 mil. The ratio of the thickness of any of the microlayers to the thickness of the bulk layer is at least about 1:2. The film has a total free shrink (ASTM D2732-03) of at least about 10% at 200° F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.