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    Process for the dehydration of oxygenated compounds
    81.
    发明授权
    Process for the dehydration of oxygenated compounds 有权

    公开(公告)号：US10894750B2

    公开(公告)日：2021-01-19

    申请号：US15540399

    申请日：2016-02-22

    Applicant: versalis S.p.A.

    Inventor： Nicola Vecchini ,  Gianni Girotti

    IPC: C07C1/24 ,  B01J23/10 ,  C07C29/60 ,  B01J37/03 ,  C07C11/167 ,  B01J21/12 ,  B01J35/02

    Abstract: The present invention relates to a process for the dehydration of at least one oxygenated compound, preferably selected from saturated alcohols, unsaturated alcohols, diols, ethers, in the presence of at least one dehydration catalyst selected from cerium oxide (CeO2), aluminium oxide (γ-Al2O3), aluminium silicate, silica-aluminas (SiO2—Al2O3), aluminas, zeolites, sulfonated resins, ion-exchange resins, metal oxides (for example, lanthanum oxide, zirconium oxide, tungsten oxide, thallium oxide, magnesium oxide, zinc oxide); of at least one basic agent selected from ammonia (NH3), or from inorganic or organic compounds containing nitrogen capable of developing ammonia (NH3) during said dehydration process; and, optionally, of silica (SiO2), or of at least one catalyst for the dissociation of ammonia (NH3) selected from catalysts comprising silica (SiO2), preferably of silica (SiO2).

    Process for preparing conjugated diene (co)polymers in the presence of a catalytic system comprising a pyridyl iron (III) complex
    82.
    发明授权
    Process for preparing conjugated diene (co)polymers in the presence of a catalytic system comprising a pyridyl iron (III) complex 有权

    公开(公告)号：US10793653B2

    公开(公告)日：2020-10-06

    申请号：US16343716

    申请日：2017-10-20

    Applicant: Versalis S.p.A.

    Inventor： Giovanni Ricci ,  Guido Pampaloni ,  Anna Sommazzi ,  Massimo Guelfi ,  Francesco Masi

    IPC: C08F36/06 ,  C07F15/02 ,  C08F36/08 ,  C08F136/08 ,  C08F136/06 ,  C08F236/06 ,  C08F4/70 ,  C08L9/00 ,  C08F236/08

    Abstract: A process for preparing conjugated diene (co)polymers comprising polymerizing at least one conjugated diene in the presence of a catalytic system comprising: (a) at least one pyridyl iron (III) complex having general formula (I) or (II): wherein: —R1, R2, R3 and R4, identical or different, represent a hydrogen atom; or are selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; —R5 represents a hydrogen atom, or is selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; —X, identical or different, represent a halogen atom such as, for example, chlorine, bromine, iodine; or are selected from linear or branched C1-C20, preferably C1-C15, alkyl groups, —OCOR6 groups or —OR6 groups wherein R6 is selected from linear or branched C1-C20, preferably C1-C15, alkyl groups. —n is 3; (b) at least one co-catalyst selected from organo-aluminum derivatives, preferably from: (b1) aluminum compounds having general formula (III): Al(R7)(R8)(R9) (IIl) wherein R7 represents a hydrogen atom, or is selected from linear or branched C1-C20 alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, arylalkyl groups, alkoxy groups; R8 and R9, identical or different, are selected from linear or branched C1-C20 alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, arylalkyl groups; (b2) aluminoxanes having general formula (IV): (R10)2—Al—O—[-AI(R11)—O-]m-AI-(R12)2 (IV), wherein R10, R11 and R12, identical or different, represent a hydrogen atom, or a halogen atom such as chlorine, bromine, iodine, fluorine; or are selected from linear or branched C1-C20 alkyl groups, cycloalkyl groups, aryl groups, said groups being optionally substituted with one or more silicon or germanium atoms; and m is an integer ranging from 0 to 1000; (b3) partially hydrolyzed organo-aluminum derivatives; (b4) haloaluminum alkyls having general formula (V) or (VI): AI(R13)p(X′)3-p (V) AI2(R13)q(X′)3-q (VI) wherein p is 1 or 2; q is an integer ranging from 1 to 5; R13, identical or different, are selected from linear or branched C1-C20 alkyl groups; X′ represents a chlorine or bromine atom, preferably chlorine; provided that said co-catalyst (b) is not selected from organo-boron derivatives.

    VARIANT OF OLEAGINOUS YEAST AND ITS USE FOR THE PRODUCTION OF LIPIDS
    84.
    发明申请
    VARIANT OF OLEAGINOUS YEAST AND ITS USE FOR THE PRODUCTION OF LIPIDS 审中-公开

    公开(公告)号：US20200149076A1

    公开(公告)日：2020-05-14

    申请号：US16631188

    申请日：2018-07-17

    Applicant: Versalis S.p.A.

    Inventor： Valentina RODIGHIERO ,  Giuliana FRANZOSI ,  Concetta COMPAGNO ,  Claidia CAPUSONI

    IPC: C12P7/64 ,  C12R1/645

    Abstract: The present invention relates to a variant of oleaginous yeast of the species Trichosporon oleaginosus characterized by mutations affecting cell wall synthesis that change the morphology thereof with respect to the wild-type strain of the same species. In particular, thanks to said mutations, cell aggregates are formed which, with respect to the wild-type strain of the same species, lower the viscosity of the culture broth, are more easily separable therefrom and thus make their recovery easier. Said variant of oleaginous yeast of the species Trichosporon oleaginosus is also characterized by yields of oleaginous cellular biomass and intracellular accumulation of lipids that are similar or even higher than those of the wild-type strain. Further, the present invention relates to a process for the production of lipids through said variant of oleaginous yeast of the species Trichosporon oleaginosus. The lipids thus obtained can be advantageously used as synthesis intermediates, particularly in the so-called “green chemistry” sector, or in the production of biofuels such as, for example, “biodiesel” or “green diesel”, which can be used as such, or mixed with other fuels for transportation.

    EXPANDABLE VINYL AROMATIC COMPOSITION CONTAINING FUNCTIONALIZED ETHYLENE-VINYL ACETATE COPOLYMER
    86.
    发明申请
    EXPANDABLE VINYL AROMATIC COMPOSITION CONTAINING FUNCTIONALIZED ETHYLENE-VINYL ACETATE COPOLYMER 审中-公开

    公开(公告)号：US20190315937A1

    公开(公告)日：2019-10-17

    申请号：US16314047

    申请日：2017-07-28

    Applicant: Versalis S.p.A.

    Inventor： Giovanni CUDER ,  Stefano COMBA ,  Aldo LONGO

    IPC: C08J9/14 ,  C08J9/18 ,  C08J9/00 ,  C08J9/232

    Abstract: The present invention relates to polymeric compositions that can be used for producing packaging with dynamic cushioning, with a pleasant touch, with reduced abrasive power, in which the expanded particles constituting the packaging adhere well to one another and do not come detached during use. Said compositions comprise: a) from 70% to 90% by weight of a vinyl aromatic polymer and/or copolymer, calculated with respect to (a)+(b); b) from 10% to 30% by weight of an ethylene-vinyl acetate copolymer (EVA) containing a percentage that ranges from 10% to 30% by weight of vinyl acetate, calculated with respect to (a)+(b); c) from 3 to 10 parts by weight of a blowing agent, calculated on 100 parts of component a) added to component b); said copolymer (b) being distributed in the polymer (a) in the form of particles having an average volumetric diameter ranging from 1 nm to 2000 nm. The compositions described and claimed do not include styrene-butadiene or styrene-isoprene block copolymers, hydrogenated or non-hydrogenated; thermoplastic polyurethanes, polystyrene-butadiene grafted polymers or styrene core-shell polymers.

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