Method for enhancing the rate of the formation of the reaction product of a carboxylic acid and urea via acid addition
US9920001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jan 26, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N47/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a method for enhancing the rate of formation of the reaction products of a carboxylic acid and a urea having the formula:where R1, R2, R3 and R4 are the same or different and are selected from the group consisting of hydrogen, substituted and unsubstituted alkyl, allyl, vinyl and alkoxyl groups having from 1-6 carbon atoms, substituted and unsubstituted phenyl groups and the halides. The rate of formation is enhanced by adding acid to a solution including the carboxylic acid and the urea. Preferably, the reaction product of the present invention is N,N′-diformylurea or N,N′-diacetylurea. These reaction products, e.g., diformylurea, have been found to produce significantly improved growth in a variety of agricultural products when applied to the seed, to the surrounding soil or to the foliage of the emerging plant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.