The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1992
Filed:
Apr. 03, 1989
Kyowa Hakko Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A coating agent for delaying the release of a physiologically active substance to be administered per os to ruminants, said coating comprising a veterinary acceptable water-soluble, synthetic high molecular compound and ethylcellulose, said coating agent being stable in the first stomach or rumen of ruminants and capable of being effectively disintegrated for subsequent absorption in the 4th stomach of ruminants, characterized in that said coating agent further comprises at least one substance which is miscible with both of said high molecular weight compound and ethylcellulose and is insoluble in water. Said coating agent forms a coat which protects the active substance from degradation in the first stomach of a ruminant at a pH of about 5.5 and rapidly breaks down in the 4th stomach at a pH of about 3, thereby releasing the active ingredient for absorption by the animal. The coating agent and the actives coated therewith and their preparation are described.