Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1999-01-05
2000-05-23
Langel, Wayne
Chemistry: fertilizers
Processes and products
Organic material-containing
71902, C05C 300, C05C 1100, C05C 1300
Patent
active
060661909
ABSTRACT:
This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients 1-hydro-1,2,4-triazole, a substituted 1-hydro-1,2,4-triazole, or their salts or metallic complexes, plus at least one other chemical compound, such as a substituted pyrazole, or its salts or metallic complexes, dicyanodiamide, guanyl thiocarbamide, thiocarbamide, ammonium rhodanide, or ammonium thiosulfate, where said combination exhibit readily recognizable synergetic effects compared to the case where said chemical compounds are employed alone, and thus provide benefits in terms of better efficacies, reduced dosages, and/or cost savings.
REFERENCES:
patent: 3701645 (1972-10-01), Scott
patent: 5637131 (1997-06-01), Michel et al.
International Publication WO93/21134, Oct. 28, 1993.
International Publication WO95/22514, Aug. 24, 1995.
Database WPI Section Ch, Week 8534 Derwent Publications Ltd., London, GB; Class C04, AN 85-208634.
Chemical Abstracts, vol. 112, No. 15, Apr. 9, 1990 Columbus Ohio, US; Abstract No. 138171u, Bremner et al.
Grabarse Margrit
Lang Sieghard
Michel Hans-Jurgen
Wozniak Hartmut
Feiereisen Henry M.
Langel Wayne
SKW Stickstoffwerke
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