Abscission of parts of plants

US4936899A · kind A · utility

Assignee

• BASF SE

Inventors

• Guenter Schulz · Ludwigshafen, DE
• Hubert Sauter · Mannheim, DE
• Klaus Grossmann · Schifferstadt, DE
• Dieter Kleuser · Bischofswerda, DE

Key dates

• Filing date: Apr 14, 1989
• Grant date: Jun 26, 1990
• Expiry date: Apr 14, 2009

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N47/36
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Agents for the abscission of parts of plants contain one or more urea derivatives of the general formula I ##STR1## where A is ##STR2## B is cyclopentyl, cyclohexyl or phenyl which is unsubstituted or substituted by one, two or three chlorine, bromine or fluorine atoms, R is hydrogen or methyl, R.sup.1 is fluorine, chlorine or, bromine and n is the integer 1, 2 or 3, and either PA0 (a) an oxyethylated tallow fatty amine of the general formula II ##STR3## where R.sup.2 is C.sub.16 -C.sub.18 -n-alkyl or isoalkyl and x and y together are an integer from 8 to 20, or PA0 (b) a fatty alcohol of the general formula III EQU R.sup.3 --CH.sub.2 O--(CH.sub.2 CH.sub.2 O).sub.w --(CH.sub.2 CH.sub.2 CH.sub.2 O).sub.z --H III PA0 where R.sup.3 is C.sub.10 -C.sub.18 -n-alkyl, w is an integer from 3 to 7 and z is an integer from 0 to 7, the weight ratio of urea derivative I to oxyethylated tallow fatty amine II or fatty alcohol III being from 0.01:1 to 10:1.