Patent · US Expired

Nitrogenous fertilizer compositions

US4083712A · kind A · utility

4Cited by

3References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Herbert Corte
Harold Heller · Narberth, US
Peter M. Lange · Leverkusen, DE
Otto Netz

Key dates

Filing date	Dec 26, 1973
Grant date	Apr 11, 1978
Priority date	—
Expiry date	Dec 26, 1993

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC05D9/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Nitrogenous fertilizer compositions comprising a cation exchanger in the form of a salt thereof with a basic carbonic acid derivative containing at least 2 nitrogen groupings, e.g., a salt formed by attaching to a cation exchange material, guanidine, diguanidine, guanylurea, biuretdicyanamide, urazone, melamine, guanine or ammeline, are outstandingly effective in providing gradually-acting, long-lasting fertilizing action.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.