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:
Dec. 13, 1977
Filed:
Oct. 16, 1974
Takeo Yoshimoto, Yokohama, JA;
Keiichi Igarashi, Yokohama, JA;
Takeo Harayama, Kamakura, JA;
Masaaki Ura, Yokohama, JA;
Teruhiko Toyama, Fujisawa, JA;
Osamu Morikawa, Chigasaki, JA;
Yoshio Takasawa, Chigasaki, JA;
Yoshikata Hojo, Chigasaki, JA;
Mitsui Toatsu Chemicals, Incorporated, Tokyo, JA;
Abstract
Nitrodiphenyl ether derivatives of the general formula: ##STR1## wherein X stands for Cl, F, CH.sub.3 or CF.sub.3, n is an integer of 1-3 with the proviso that X may be the same or different when n is 2 or 3 but X.sub.n should not be 2,4-dichloro substituent, Are valuable as herbicides possessing an excellent herbicidal activity to a wide variety of undesirable weeds with an extremely low toxicity to useful crops. These nitrodiphenyl ether derivatives are prepared by hydroxyethylation of a compound of the above general formula except that a halogen atom is present in place of nitro group and subsequent halogenation of the .beta.-hydroxyethoxy group of the resulting compound.