公开(公告)号：US20180171178A1

公开(公告)日：2018-06-21

申请号：US15579785

申请日：2016-07-29

Applicant: versalis S.p.A.

Inventor： Cecilia QUERCI ,  Danilo DEL PRETE ,  Maria CALDARARO ,  Gianni GIROTTI

IPC: C09F1/04 ,  C08C1/04 ,  C07J53/00 ,  C07J71/00 ,  B01D9/00 ,  B01D17/02 ,  C07C29/09 ,  C07C67/03 ,  C07C67/52 ,  C07C67/56 ,  C07C67/58

Abstract: 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.