Continuous preparation of incorporated photographic amides
US6509500B2 · kind B2 · utility
0Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | May 24, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C303/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a method of making an incorporated photographic amide comprising a) continuously combining an amine capable of forming an incorporated photographic amide, an acid chloride, one or more acid-absorbing reagents, and one or more water-immiscible solvents to continuously form a reaction mixture; b) continuously reacting the amine and acid chloride to form an incorporated photographic amide; and c) separating the incorporated photographic amide from the reaction mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.