Kottegoda
Nilwala Kottegoda, Horana LK
Patent application number | Description | Published |
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20110262341 | PROCESS FOR PREPARATION OF CARBON NANOTUBES FROM VEIN GRAPHITE - A catalyst free process for manufacturing carbon nanotubes by inducing an arc discharge from a carbon anode and a carbon cathode in an inert gas atmosphere contained in a closed vessel. The process is carried out at atmospheric pressure in the absence of external cooling mechanism for the carbon cathode or the carbon anode. | 10-27-2011 |
20120056121 | PROCESS FOR PREPARATION OF NANOPARTICLES FROM MAGNETITE ORE - A process for making magnetite nanoparticle dispersions by reacting the surface groups of the destructured magnetite ore with carboxyl acid groups of the long chain carboxylic acid to form nanoparticles containing bound stabilizer and dispersing the nanoparticles in alcoholic solvent. | 03-08-2012 |
20130062195 | PROCESS FOR PREPARATION OF CARBON NANOTUBES FROM VEIN GRAPHITE - A catalyst free process for manufacturing carbon nanotubes by inducing an arc discharge from a vein graphite anode and a vein graphite cathode in an inert gas atmosphere contained in a closed vessel. The process is carried out at atmospheric pressure in the absence of external cooling mechanism for the carbon cathode or the carbon anode. | 03-14-2013 |
Nilwala Kottegoda, Walgama LK
Patent application number | Description | Published |
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20110296887 | CELLULOSE BASED SUSTAINED RELEASE MACRONUTRIENT COMPOSITION FOR FERTILIZER APPLICATION - A macronutrient sustained release composition for a plant locus having nitrogen containing macronutrient compound adsorbed on the surface of hydroxyapatite phosphate nanoparticles, and a process for preparation thereof. The macronutrient adsorbed hydroxyapatite phosphate nanoparticles are encapsulated within cavities present in wood such that the biodegradation of the wood releases the adsorbed macronutrient compounds in a slow and sustained manner to the soil. Further, the macronutrient particles are encapsulated within the cell cavities of wood and wood is coated with cellulose modified hydroxyapatite phosphate nanoparticles such that the rupture of the nanocoating initiates the nitrogen release followed by the biodegradation of the wood releases the rest of the adsorbed macronutrient compounds in a slow and sustained manner to the soil. | 12-08-2011 |
Nilwala Kottegoda, Malwana LK
Patent application number | Description | Published |
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20130098125 | COMPOSITION AND METHOD FOR SUSTAINED RELEASE OF AGRICULTURAL MACRONUTRIENTS - A fertilizer composition wherein a nitrogen containing macronutrient is adsorbed on the surface of hydroxyapatite phosphate nanoparticles. Said fertilizer composition slowly releases the nitrogen containing macronutrient to soil. | 04-25-2013 |
20140165683 | COMPOSITIONS AND METHODS FOR SUSTAINED RELEASE OF AGRICULTURAL MACRONUTRIENTS - A solid fertilizer composition wherein a nitrogen-containing macronutrient is adsorbed on the surface of hydroxyapatite phosphate nanoparticles and wherein the ratio of the nitrogen-containing macronutrient to the hydroxyapatite phosphate is between 1:1 and 10:1. In certain embodiments, said solid fertilizer composition slowly releases the nitrogen-containing macronutrient to soil. | 06-19-2014 |