Coated nutrients and medicaments for veterinary use
US4199561A · kind A · utility
69Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1979 |
| Grant date | Apr 22, 1980 |
| Priority date | — |
| Expiry date | Feb 26, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An imidazoline modified styrene-acrylonitrile polymer composition which is substantially insoluble in aqueous media at about pH 6 or more but swellable or soluble at pH 3 or less is employed as a coating for nutrient or therapeutic substances for administration to ruminants. The substances thus are rendered resistant to attack and breakdown in the rumen yet remain susceptible to release and digestion within the abomasum or small intestine of the animal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.