Stock material or miscellaneous articles – Three dimension imitation or 'treated' natural product – Flora
Patent
1987-06-11
1989-02-28
Silverberg, Sam
Stock material or miscellaneous articles
Three dimension imitation or 'treated' natural product
Flora
427 4, 428 24, A01N 300
Patent
active
048084476
ABSTRACT:
The process of obtaining preserved flower blooms and other natural predominantly carbohydrate products such as flower stems, leaves and vegetables which are free standing and have a natural fresh appearance maintained over prolonged periods which comprises removing most or substantially all of the water present in the substrate, said substrate including naturally occurring active hydrogen compounds as part of its structure, exposing the substantially dried substrate to a cross-linking compound containing a plurality of groups which are complementary reactive with the said active hydrogen groups to form a high molecular weight three dimensional cross-linked polymeric network between the active hydrogen groups of said substrate and the compound containing said complementary reactive groups.
A process of dehydrating flower blooms, and other natural carbohydrate products such as flower stems, leaves and vegetables with good shape and color retention which comprises immersing such substrate in a water-miscible, organic solvent which forms a minimum boiling point azeotrope with water, and evaporating the solvent-water mixture in a controlled atmosphere that keeps the water vapor concentration leaving the substrate in the evaporating gas greater than it is in the liquid present.
REFERENCES:
patent: 2606843 (1952-08-01), Fessenden
patent: 2658836 (1953-11-01), Fessenden
patent: 4205059 (1980-05-01), Haggens
Mueth Joseph E.
Silverberg Sam
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