High moisture barrier OPP film containing high crystallinity polypropylene and terpene polymer
US5500282A · kind A · utility
12Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1994 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Jul 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An oriented film structure of improved water vapor transmission rate is prepared from an extruded and stretched mixture of (1) high crystallinity polypropylene (HCPP) having intermolecular stereoregularity greater than 93% and (2) a moisture barrier improving amount of polyterpene resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.