Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Polymer from ethylenic monomers only
Patent
1977-09-02
1980-01-01
Rosen, Sam
Drug, bio-affecting and body treating compositions
Solid synthetic organic polymer as designated organic active...
Polymer from ethylenic monomers only
424 16, 424 19, 424 22, 424 31, 424 32, 424 33, 424 35, A61K 924, A61K 932, A61K 936
Patent
active
041817095
ABSTRACT:
Pellets adapted to be orally administered to ruminants are disclosed. The pellets have a core comprising a nutrient and/or medicament, and a coating which protects the core in the environment of the rumen is also provided to allow utilization of the core in the abomasum and/or intestine. The coating comprises a polymeric matrix which is resistant to the mildly acidic environment of the rumen, a hydrophobic substance, a flake material, and reactive acid dispersed throughout the continuous matrix. The core may contain a neutralizer if desired. The continuity of the polymeric matrix is destroyed in the more acidic environment of the abomasum.
REFERENCES:
patent: 3577512 (1971-05-01), Shepherd et al.
patent: 3829564 (1974-08-01), Merry et al.
patent: 3832252 (1974-08-01), Higuchi et al.
patent: 3880990 (1975-04-01), Bauer et al.
patent: 3917813 (1975-11-01), Pedersen
patent: 4060598 (1977-11-01), Groppenbacher et al.
Eastman Kodak Company
Reece III Daniel B.
Rosen Sam
Stevens John F.
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