METHOD FOR THE SEPARATION OF THE ISOPRENIC CONSTITUENTS OF GUAYULE

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United States of America Patent

SERIAL NO

15579785

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Abstract

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Method for the separation of at least one isoprenic constituent from the resin of a plant of guayule and/or of the guayule type comprising the steps of: a) providing a defatted resin of guayule and/or of the guayule type; b) subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprene constituents argentatin A, argentatin C and argentatin D; and c) separating at least one isoprenic constituent from said polar extract and/or from the apolar extract thus obtained, wherein step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other and/or a step in which the apolar extract is subjected to partitioning of the solid-liquid type.

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Patent Owner(s)

Patent OwnerAddress
VERSALIS S P ASAN DONATO MILANESE (MI)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CALDARARO, Maria Trecate (NO), IT 16 26
DEL, PRETE Danilo Oleggio (NO), IT 1 0
GIROTTI, Gianni San Giuliano, IT 19 108
QUERCI, Cecilia Novara (NO), IT 11 53

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