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:
May. 13, 1997
Filed:
Mar. 20, 1990
Rainer Schlicht, Bad Camberg, DE;
Hans R ochling, Bad Soden am Taunus, DE;
Konrad Albrecht, Kelkheim/Taunus, DE;
Hoechst Aktiengesellschaft, Frankfurt, DE;
Abstract
Granules can be prepared from powders of active compounds by the counter-current principle by fluidization in a stream of air and spraying of a solution of adhesive. Dispersions or solutions of active compounds can be granulated in accordance with the invention if the aqueous dispersion or solution is sprayed by the counter-current principle into the gas stream of a fluidizing chamber and is caused to fluidize, the formation of granules being started, in a start-up phase, at 10 to 60% of the maximum gas flow and at only up to 30% of the maximum feed rate of dispersion or solution, and subsequently the feed rate and the gas flow are increased up to the maximum values for the feed rate and the gas flow, and, in the main phase, the formation of granules is continued at maximum gas flow and maximum feed rate. Granules prepared in this way, containing pesticides as the active compounds, can be used as plant protection agents or pest control agents.