Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Polymer from ethylenic monomers only
Patent
1978-07-24
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 32, A61K 958, A61K 932
Patent
active
041817109
ABSTRACT:
Pellets adapted to be orally administered to ruminants are disclosed. The pellets have a core of a material beneficial to the ruminant such as a nutrient and/or medicament, and a coating which protects the core in the environment of the rumen, and allows utilization of the core in the abomasum and/or intestines. The coating comprises a polymeric matrix which is resistant to the mildly acidic environment of the rumen at pH of about 5.5 and a hydrophobic substance dispersed throughout the continuous matrix. 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: 4060598 (1977-11-01), Groppenbacher et al.
Ardell Richard E.
Dannelly Clarence C.
Paar Gary E.
Eastman Kodak Company
Reece III Daniel B.
Rosen Sam
Stevens John F.
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