PHOTOGRAPHIC OR IMAGE RECIEVING ELEMENTS CONTAINING POLYMERIC MORDANTS
US3944424A · kind A · utility
8Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1975 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Feb 21, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A water-insoluble polymer comprising repeating units at least 1/3 of said repeating units having the formula: ##SPC1## Wherein R.sup.1 and R.sup.2 are hydrogen or alkyl and R.sup.3, R.sup.4 and R.sup.5 are alkyl groups wherein the total number of carbon atoms in R.sup.3, R.sup.4 and R.sup.5 is at least 12 and X.sup.-is an anion; is useful in dye mordant compositions in photographic elements. Preferred dye mordants comprise copolymers with styrene or methyl methacrylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.