Non-burning storable liquid fertilizer
US4033745A · kind A · utility
33Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1976 |
| Grant date | Jul 5, 1977 |
| Priority date | — |
| Expiry date | Jun 3, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05C9/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A complete, non-burning, liquid fertilizer suspension, releasing nitrogen as required by plants without damage by high concentrations of contained nitrogen, comprising highly polymerized urea-formaldehyde, water soluble sugars, aliphatic alcohols, and water. To achieve desired properties solids content totals 50-70% by weight; sugars, 3 to 10%; alcohols, 0.05 to 1.0%; and urea to formaldehyde mol ratio is 1.7 to 2.3. Said composition retains pH of 6 to 7, viscosity of 200 to 350 centipoises, and stable suspension character until applied, and then stimulates growth of plants, particularly grasses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.