Method for the separation of the isoprenic constituents of guayule

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United States of America

PATENT NO 10570312
APP PUB NO 20180171178A1
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 A20097 SAN DONATO MILANESE (MI)

International Classification(s)

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  • 2016 Application Filing Year
  • C09F Class
  • 14 Applications Filed
  • 9 Patents Issued To-Date
  • 64.29 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caldararo, Maria Trecate, IT 16 26
Del, Prete Danilo Oleggio, IT 1 0
Girotti, Gianni San Giuliano Milanese, IT 19 108
Querci, Cecilia Novara, IT 11 53

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  • C09F Class
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges7201 - 1000.511.522.533.544.555.566.577.5

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