Polymer resin packaging material for photographic light sensitive material
US5679420A · kind A · utility
2Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polymer resin packaging material for a photographic light sensitive material is disclosed, the packaging material comprising at least one heat seal layer consisting of a polymer resin prepared by polymerizing an ethylenically unsaturated monomer in the presence of a metallocene catalyst, the polymer resin containing a lower molecular weight polymer in an amount of 3 weight % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.