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. 08, 1991
Filed:
Jan. 31, 1989
Kenji Hirai, Kanagawa, JP;
Takamasa Futikami, Kanagawa, JP;
Atsuko Murata, Kanagawa, JP;
Hiroaki Hirose, Chiba, JP;
Masahiro Yokota, Chiba, JP;
Shoin Nagato, Tokyo, JP;
Sagami Chemical Research Center, , JP;
Chisso Corporation, , JP;
Abstract
Disclosed are novel oxazolidinedione derivatives expressed by the following formula: ##STR1## (R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 being defined in the specification), a method of producing the derivatives and herbicides containing the derivatives as an active ingredient. Carbonate esters which are intermediates in the method of producing the oxazolidinedione derivatives are also disclosed. These novel derivatives exhibit excellent weed-killing activity for harmful weeds and low phytotoxicity for crops.