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US 5,630,861 AGranted
Controlled release fertilizers
AssigneeBaran Advanced Materials (94) Ltd.
InventorItzhak Yaniv
Life of this patent
Estimating the term…
Abstract
Controlled-release fertilizers comprise one or more water-soluble fertilizer(s) together with improved magnesite cements, comprising cements selected from magnesium oxychloride and/or magnesium oxysulphate together with one or more organic carboxylic acid(s) and/or their carboxylate salts and/or their acid anhydrides.
Claims24
Controlled-release fertilizers comprising a mixture of:
- (a) one or more water-soluble fertilizer(s);
- and
- (b) a magnesite cement cured from a composition comprising magnesium oxychloride, or magnesium oxysulphate, or mixtures thereof, and one or more organic carboxylic acid(s), or carboxylate salts thereof, or acid anhydrides thereof, or mixtures thereof.
Dependencies are inferred from the claim text.