Flower preservation
US4272571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Jun 4, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N3/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preserving substantially any variety of flower while retaining the natural colors thereof, in which the flower is immersed in an essentially water-free composition comprising: at least one dehydrating alcohol, a carboxylic acid, a urea-containing compound, an alkaline citrate, and zero to an effective amount of at least one of a silicone fluid, a silicone resin, an alkaline formaldehyde sulfoxylate, aluminum or magnesium sulphate and cupric or other transitional metal sulphate for sufficient time to dehydrate the flower, said composition also containing a sufficient quantity of at least one compound in the group consisting of an alkaline phosphate, a lower carboxylic acid and phenol so as to ensure that the composition has a pH in the range 5-7. Following immersion the flower is dried and, if desired coated with a silicone resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.