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1. 发明申请

US20210380512A1 PROCESS FOR BIO-1,3-BUTANEDIOL PURIFICATION FROM A FERMENTATION BROTH 有权
公开(公告)号：US20210380512A1
公开(公告)日：2021-12-09
申请号：US17277968
申请日：2019-09-19
申请人： VERSALIS S.P.A.
发明人： Mario Baldassarre , Alberto Cesana , Fabrizio Bordes
IPC分类号： C07C29/76 , C12P7/18 , C07C29/80 , C07C1/24 , C08F36/06 , B01J23/10 , B01D61/14 , B01D61/02 , B01D21/26 , B01D69/02 , B01D71/02 , B01D61/58 , B01D15/36
摘要： A process for bio-1,3-butanediol purification from a fermentation broth includes the steps of: (a) subjecting the fermentation broth to separation, (b) subjecting the product obtained in step (a) to treatment with ion-exchange resins, (c) subjecting the product obtained in step (b) to a first evaporation, (d) subjecting the product obtained in step (c) to a second evaporation; and (e) subjecting the product obtained in step (d) to a third evaporation, obtaining purified bio-1,3-butanediol. The purified bio-1,3-butanediol can be used to produce bio-1,3-butadiene. Bio-1,3-butadiene can be used as a monomer or as an intermediate to produce elastomers and (co)polymers.

2. 发明申请

US20210371555A1 POLYMERIZATION PROCESS FOR THE SYNTHESIS OF VINYL AROMATIC POLYMERS WITH A CONTROLLED STRUCTURE 有权
公开(公告)号：US20210371555A1
公开(公告)日：2021-12-02
申请号：US17052880
申请日：2019-05-08
申请人： VERSALIS S.P.A.
发明人： Franco Ghelfi , Angelo Ferrando , Aldo Longo , Mirko Boffagni
IPC分类号： C08F112/08
摘要： The present invention relates to a polymerization process for the synthesis of vinyl aromatic polymers, in which the sequence of monomers in the chain and the linear, branched soluble, or crosslinked insoluble structure, with reactive or different polarity functions, are controlled. Said process comprises the step of polymerizing vinyl aromatic monomers by means of an Atom Transfer Radical Polymerization (ATRP) reaction with an Activator ReGenerated by Electron Transfer (ARGET), the reaction being carried out at a temperature comprised between 25° C. and 110° C. in an inert gas atmosphere in the presence of a complex catalyst containing a cupric halide and a multidentate amine ligand, feeding to the reaction an organic initiator having two geminal halogens, an alkali metal (bi)carbonate, a solvent pair of an aliphatic alcohol and an acetic ester of the same aliphatic alcohol and possibly ascorbic acid, provided that no initiator is used with three or more active halogens, or polyvinyl monomers or inimers.

3. 发明授权

US11142590B2 Solidification of a natural rubber latex by polyquaternary polymers 有权
公开(公告)号：US11142590B2
公开(公告)日：2021-10-12
申请号：US16325012
申请日：2017-08-11
申请人： VERSALIS S.P.A.
发明人： Giacomo Gagliardi , Giovanni Regattieri , Emanuele Mazzotti
IPC分类号： C08C1/15 , C08L7/02 , C08C1/02 , C08C1/07 , C08C2/06 , C08C1/12
摘要： The present invention relates to a solidification process of the natural rubber latex by means of polyquaternary polymers. The process of the present invention has the advantage to not require the addition of acids and/or salts, with an evident saving in terms of cost for the reagents. Furthermore, in such a way neither the neutralization step of the rubber nor the treatment of the processing water before their disposal are required. The process of the present invention is suitable both for the continuous and batchwise embodiment, with evident advantages as far as its industrial application is concerned.

4. 发明授权

US11130846B2 Aqueous emulsions containing ethylene-vinyl acetate copolymers, preparation process thereof and their use as anti-gelling additives of crude oils 有权
公开(公告)号：US11130846B2
公开(公告)日：2021-09-28
申请号：US15779686
申请日：2016-12-02
申请人： versalis S.p.A. , ENI S.p.A.
发明人： Alessandro Casalini , Michela Agnoli , Paolo Mariani , Romano Lima , Massimo Merlini
IPC分类号： C08J3/03 , C08L23/08 , C10L1/14 , C10L1/196 , C10L1/197 , C10L10/16 , C10L1/16
摘要： The present invention relates to an aqueous emulsion comprising: a) from 50% to 60% of an organic phase dispersed in an aqueous phase, said organic phase containing a mixture including from 24% to 30%, calculated with respect to the final emulsion, of ethylene-vinyl acetate copolymers and/or polyalkyl(meth)acrylates, indicated in the present description as polymeric component, and a high-boiling organic solvent, or a mixture of said solvents; b) a primary emulsifier at a concentration higher or equal to 0.1% and lower than or equal to 3% by weight, calculated with respect to the final emulsion; c) from 37% to 47% of an aqueous phase; wherein the ratio between said polymer component and said organic solvent in the final aqueous emulsion is at least 1/1 and where the organic solvent and any polymer of the polymeric component have a Hildebrand solubility parameter δ such that, the difference (δsolvent_δpolymer) is lower than 2 in absolute value for any polymer of the polymeric component.

5. 发明申请

US20210292354A1 Oxo-Nitrogenated Iron Complex, Catalytic System Comprising Said Oxo-Nitrogenated Iron Complex and Process for the (Co)Polymerization of Conjugated Dienes 有权
公开(公告)号：US20210292354A1
公开(公告)日：2021-09-23
申请号：US16345015
申请日：2018-01-18
申请人： Versalis S.P.A.
发明人： Anna Sommazzi , Pampaloni Guido , Giovanni Ricci , Francesco Masi , Filippo Renili
IPC分类号： C07F15/02 , C08F136/08 , C08F136/06 , C07C251/08
摘要： Oxo-nitrogenated iron complex having general formula (I): in which: R1 and R2, identical or different, represent a hydrogen atom; or they are selected from linear or branched, optionally halogenated C1-C20, preferably C1-C15, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups; R3 represents a hydrogen atom, or it 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, preferably chlorine; or they are selected from. linear or branched C1-C20, preferably C1-C15, alkyl groups, —OCOR4 groups or —OR4 groups in which R4 is selected from linear or branched C1-C20, preferably C1-C15, alkyl groups; n is 2 or 3. Said oxo-nitrogenated iron complex having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.

6. 发明授权

US11041178B2 Process for the production of sugars from biomass derived for guayule plants 有权
公开(公告)号：US11041178B2
公开(公告)日：2021-06-22
申请号：US16760473
申请日：2018-10-29
申请人： VERSALIS S.P.A.
发明人： Ezio Battistel , Egidio Viola , Ugo De Corato , Giacobbe Braccio , Valerio Vito
IPC分类号： C12P19/02 , C12P1/02
摘要： Process for the production of sugars from biomass derived from guayule plants comprising: subjecting said biomass to a biological pretreatment in the presence of at least one ligninolytic fungus obtaining a liquid phase comprising sugars and a first solid residue: subjecting said first solid residue to hydrolysis in the presence of at least one diluted inorganic acid obtaining a first hydrolysate comprising sugars and a second solid residue; subjecting said second solid residue to enzymatic hydrolysis obtaining a second hydrolysate comprising sugars and a third solid residue. The sugars thus obtained can be advantageously used as sources of carbon in fermentation processes for producing alcohols (e.g., ethanol, butanol), lipids, diols (e.g., 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol), or in chemical synthesis processes for producing other intermediates or chemical products (e.g., furfural). Said alcohols and lipids can be advantageously used in turn in the production of biofuels (e.g., biodiesel or “green diesel”), which can be used as such, or mixed with other fuels for transportation, while said diols can be used in the production of products such as bio-butadiene which can in turn be used for manufacturing rubbers (e.g., polybutadiene or copolymers thereof). Said uses are particularly important in the case of a biorefinery.

7. 发明授权

US10913804B2 Process for separating non-Hevea natural rubber in solid form from solutions including it 有权
公开(公告)号：US10913804B2
公开(公告)日：2021-02-09
申请号：US16061948
申请日：2016-12-13
申请人： Versalis S.p.A.
发明人： Tommaso Prando , Giovanni Regattieri , Maria Parisi , Dario Ghidoni
IPC分类号： C08C1/04 , C08C1/14 , C08C2/02 , C08L7/02 , B01D11/02
摘要： The present invention relates to a process for separating natural rubber deriving from non-Hevea type plants, in the form of solid crumbs, from solutions in an organic solvent system including it, where said organic solvent system may comprise at least one nonpolar organic solvent, or a mixture of at least one nonpolar organic solvent and at least one polar organic solvent, and the concomitant removal of said organic solvent system from said rubber, where the aforementioned process comprises subjecting said solution to a stripping stage by means of water vapor, in presence of a dispersing system, separating the aforementioned crumbs of natural rubber from the liquid phase, obtained through the stripping stage, and subjecting said crumbs to drying.

8. 发明授权

US10766979B2 Bis-imine pyridine complex of lanthanides catalytic system comprising said bis-imine pyridine complex and process for the (co)polymerization of conjugated dienes 有权
公开(公告)号：US10766979B2
公开(公告)日：2020-09-08
申请号：US15342786
申请日：2016-11-03
申请人： Versalis S.P.A.
发明人： Giovanni Ricci , Anna Sommazzi , Giuseppe Leone , Aldo Boglia , Francesco Masi , Maria Caldararo
IPC分类号： C08F36/04 , C08F36/08 , C08F136/00 , C08F36/00 , C08F36/06
摘要： A bis-imine pyridine complex of lanthanides having general formula (I): Said bis-imine pyridine complex of lanthanides having general formula (I) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.

9. 发明授权

US10718070B2 Process for increasing the enzymatic accessibility of a thermally treated ligno-cellulosic biomass feedstock 有权
公开(公告)号：US10718070B2
公开(公告)日：2020-07-21
申请号：US16289956
申请日：2019-03-01
申请人： Versalis S.p.A.
发明人： Piero Ottonello , Paolo Torre , Stefano Paravisi , Chiara Prefumo , Pietro Pastorino , Dario Giordano
IPC分类号： D01G9/14 , C08H8/00 , C12P19/02 , C12P19/14 , C08B37/00 , C12P7/10 , C08L97/02
摘要： It is disclosed a process for increasing the enzymatic accessibility of a thermally treated ligno-cellulosic biomass feedstock which has been thermally treated at a severity factor. The process comprises a step of fiber shives reduction, for reducing the amount of long shives. The thermally treated ligno-cellulosic biomass after fiber shives reduction is characterized by having an increased glucans accessibility and by forming a slurry having a low viscosity.

10. 发明申请

US20200157456A1 HYDROGENATED POLYMERS WITH A RADIAL STRUCTURE HAVING A CORE BASED ON CALIXARENES AND USE THEREOF IN LUBRICANT COMPOSITIONS 审中-公开
公开(公告)号：US20200157456A1
公开(公告)日：2020-05-21
申请号：US16773964
申请日：2020-01-27
申请人： ENI S.P.A. , Versalis S.P.A.
发明人： Marcello NOTARI , Claudio CAVALLO , Alberto ROSELLI , Alessandro CASNATI , Francesco SANSONE , Alessandro BURLINI
IPC分类号： C10M119/02 , C08G81/02 , C10M159/00 , C08C19/02
摘要： Hydrogenated polymers with a radial structure having a core made up of calixarenes of the general formula (I), to the core of which is linked a number P of hydrogenated linear polymer segments selected from: —hydrogenated homopolymers or co-polymers of conjugated dienes; or —hydrogenated co-polymers of said conjugated dienes and monoalkenyl arenes, and —mixtures thereof said formula (I) in which: —R1, R2, R3 and R4 are independently selected from hydrogen; a group containing carbon and hydrogen; a group also containing heteroatoms in addition to carbon and hydrogen; a group also containing silicon in addition to carbon, hydrogen and heteroatoms; —one of the two substituents R5 and R6 is hydrogen, while the other may be hydrogen or alkyl, with a number of carbon atoms between 1 and 6, preferably methyl and ethyl; —n is an integer in the range between 4 and 16.

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