Multilayer photographic film and an imaging element made of said base
US6727052B1 · kind B1 · utility
1Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a PET-based photographic multilayer film base having improved properties with regard to cutting, stiffness and post-process curl. In particular, the polyester film base comprises a biaxially-stretched multilayer film structure, in which layers a specified amount of monomeric units derived from 1,4-cyclohexanedimethanol (CHDM), sulfonic-acid-substituted aromatic dicarboxylic acid and poly(alkylene glycol) is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.