Photographic support and photographic material
US6132951A · kind A · utility
6Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Dec 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a photographic support which is excellent in mechanical strength and is less liable to get into roll set curl and which is excellent in cutting property and flatness, and a photographic material using the same. The support for photographic material comprises a polyester film, wherein the polyester film comprises two kinds of polyester resins, each has intrinsic viscosity of 0.2-1.2, and a difference in the intrinsic viscosity between the polyester resins is 0.1-1.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.