Antistatic stabilizer and final wash additive for photo developing
US5296338A · kind A · utility
2Cited by
3References
12Claims
0Family size
Inventor
Key dates
| Filing date | Jun 24, 1993 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jun 24, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C5/268
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to photographic processing, and specifically discloses the use of ethyl bis (polyethoxy ethanol) alkyl ammonium ethyl sulfate as the effective ingredient in an anti-static additive for photographic processing. The effective ingredient is combined with isopropanol and water in the ratio of 8 oz./2 oz./118 oz. (per gallon) to provide the desired anti-static coating to the photographic negatives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.