FAST, I HUVUDSAK ICKE-HYGROSKOPISK FYTOAKTIV BLANDNING OCH DESS FRAMSTAELLNINGSFOERFARANDE

• Main Authors: DJAFAR,ROGER RACHID, CHAN,JIMMY HUA-HIN
• Format: Patent
• Language: Finnish; Swedish
• Published: 10.09.1992
• Edition: 5
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC CHEMISTRY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

Disclosed are solid, phytoactive, N-phosphonomethyl-N-carboxy-methyl compositions. Also disclosed are processes for the preparation of such compositions by (a) forming an initial mixture comprising a phytoactive N-phosphonomethyl-N-carboxymethyl compound, a solvent and a molten surfactant, the surfactant being solid at ambient temperatures; (b) removing solvent from the initial mixture to form a final mixture at a temperature above the melting point of the surfactant; (c) cooling said final mixture to a temperature below the melting point of the surfactant to form a N-phosphonomethyl-N-carboxymethyl composition which is solid at ambient temperatures; and (d) processing said composition into particulate form, such as pellets, flakes, granules, or powders. Further disclosed is the use thereof in controlling vegetation.