Polypropylene based heat shrinkable film
US7662888B2 · kind B2 · utility
3Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2006 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Nov 20, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polypropylene based heat shrinkable film obtained by using a propylene-ethylene block copolymer (A) which satisfies the following requirements (A-i) to (A-iv), and having heat shrinkability imparted by orientation in at least one direction:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.