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:
Aug. 20, 1991
Filed:
Nov. 28, 1986
Keith A Drengler, Lindenhurst, IL (US);
International Minerals & Chemical Corp., Northbrook, IL (US);
Abstract
Ring-opened resorcyclic acid lactone derivatives of the formla ##STR1## wherein X is ethylene or ethenylene; Y and Z, which may be the same or different, are methylene, hydroxymethylene or carbonyl; R.sub.1 is hydrogen or lower alkyl of from 1 to about 6 carbon atoms; R.sub.2, R.sub.3, R.sub.4 and R.sub.5, which may be the same or different, are hydrogen, hydroxyl, halogen, nitro, amino or a radical selected from the group consisting of --R', --OR', --COOR' and --OCOR' wherein R' is lower alkyl of from 1 to about 6 carbon atoms, lower cycloalkyl of from 3 to about 8 carbon atom, alkenyl of from 2 to about 6 carbon atoms, substituted or unsubstituted aryl of from 6 to about 8 carbon atoms, or substituted or unsubstituted aralkyl wherein the alkyl portion contains from 1 to about 6 carbon atoms and the aryl portion contains from 6 to about 8 carbon atoms. These compounds are useful as growth-promotants in food-producing animals.