Method of improving the crushing strength, impact resistance and compressibility of urea, and urea composition
US8084642B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Feb 13, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05C9/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of improving the crushing strength, impact resistance and the compressibility of urea granules by the addition of a compound to the molten urea, wherein the compound comprises both a polyvinyl compound and an organic molecule consisting of 1-10 carbon atoms and 1-10 polar organic groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.