Agents for the stimulation and cultivation of plant growth and process for producing said agents
US5554577A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1994 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Oct 13, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05G5/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The subject matter comprises shaped mixtures of valuable materials for the stimulation and cultivation of plant growth, said materials containing plant nutrients and/or plant-protective agents in admixture with a thermoplastic binder. According to the invention the mixtures of valuable materials, which mixtures have in particular been shaped as fertilizer rods, are characterized in that they contain, as the binder, a starch that has been thermomechanically digested at elevated pressures and temperatures. The invention further relates to the process for producing these multi-component mixtures and to the use of thermomechanically digested starch, optionally in admixture with inferior amounts of further biologically compatible binder components, as a biologically degradable binder for mixtures of valuable materials of the type described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.