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:
Mar. 15, 1983
Filed:
Mar. 06, 1981
Applicant:
Inventors:
Otto Rohr, Therwil, CH;
Georg Pissiotas, Lorrach, DE;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; C07C / ;
U.S. Cl.
CPC ...
71120 ; 71 88 ; 71 90 ; 71 92 ; 71 94 ; 71 95 ; 71 98 ; 71103 ; 71105 ; 71106 ; 2604 / ; 2604 / ; 2604 / ; 560251 ; 564 49 ; 564 51 ; 564 52 ;
Abstract
Novel ureas of the formula I have herbicidal activity and are suitable in small applied amounts for selectively combating weeds in cultivated crops of soya-bean, maize and cereals. They are advantgeously produced by the isocyanate method and correspond to the formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, aralkyl, phenyl, acyl or C.sub.1 -C.sub.4 -alkylsulfonyl group or an aminoalkyl group,