Photographic elements containing reflective or diffusely transmissive supports
US4900654A · kind A · utility
21Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Sep 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/298
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are photographic elements having reflective or diffusely transmissive supports shaped from a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being poresent in an amount of about 10-30% by weight based on the weight of said polyester, said void space occupying about 2-50% by volume of said shaped article. Such articles have excellent physical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.