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. 30, 1990
Filed:
Jun. 27, 1988
Holger Heidenreich, Kuden, DE;
Benedikt Becker, Mettmann, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
A method for combating arachnida which comprises applying to arachnida and/or to a habitat thereof an effective pest combating amount of at least one derivative of a 2,3-diaminomaleonitrile of the formula ##STR1## in which X represents hydrogen, halogen, halogenoalkyl or CN, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined or different and represent hydrogen, alkyl, alkoxy, halogen, CN, NO.sub.2, dialkylamino, alkoxycarbonyl, alkylthio, alkylthionyl, alkylsulphonyl, OH, SH or NH.sub.2, wherein R.sub.1 and R.sub.b together represent the radical (II) ##STR2## in which Y represents hydrogen, halogen, halogenoalkyl or CN, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are identical or different and represent hydrogen, alkyl, alkoxy, halogen, CN, NO.sub.2, dialkylamino, alkoxycarbonyl, alkylthio, alkylthionyl, alkylsulphonyl, OH, SH or NH.sub.2, and in which R.sub.c and R.sub.d together represent a chemical bond, or R.sub.a and R.sub.b together represent the radical (II), in which Y, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 possess the meanings given above and in which R.sub.c and R.sub.d in each case represent hydrogen, or R.sub.a, R.sub.b, R.sub.c and R.sub.d in each case represent hydrogen, or R.sub.a represents hydrogen and R.sub.b represents the radical (II) in which Y, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 possess the meanings given above and R.sub.c and R.sub.d represent hydrogen.