Zoned coloration
US3937851A · kind A · utility
18Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1974 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Apr 15, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23L5/47
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Viscoelastic materials such as gelled food products are differently colored in zones with polymeric dyes. When a polymeric dye is added to a zone of a viscoelastic material, such as a gelled food product, it does not migrate from the zone; thus permitting an essentially permanently multizoned colored product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.