Patents by Inventor Nicoletta Cardi
Nicoletta Cardi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7388052Abstract: Process for the preparation of block copolymers, based on vinylaromatic monomers and monomers deriving from (meth)acrylic acid by means of radicalic polymerization which comprises polymerizing the monomers at a temperature higher than or equal to 120° C.Type: GrantFiled: June 26, 2003Date of Patent: June 17, 2008Assignee: Polimeri Europa S.p.A.Inventors: Riccardo Po, Nicoletta Cardi, Giuliana Schimperna, Aldo Longo, Maria Caldararo
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Publication number: 20070219329Abstract: Process for the preparation of block copolymers, based on vinylaromatic monomers and monomers deriving from (meth)acrylic acid by means of radicalic polymerization which comprises polymerizing the monomers at a temperature higher than or equal to 120° C., in the presence of a radicalic initiating system comprising a compound having general Formula (I).Type: ApplicationFiled: June 26, 2003Publication date: September 20, 2007Applicant: POLIMERI EUROPA S.p.A.Inventors: Riccardo Po, Nicoletta Cardi, Giuliana Schimperna, Aldo Longo, Maria Caldararo
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Publication number: 20070015922Abstract: Process for the preparation of 1,1,3,3-tetra-alkyl derivatives of isoindoline which comprises the transformation of N-benzylphthalimide into N-benzyl-1,1,3,3-tetra-alkylisoindoline by means of treatment with a Grignard reagent prepared in methyl-tert-butyl ether starting from magnesium and an alkyl halide and subjecting the intermediate thus obtained to a hydrogenolysis reaction in the presence of hydrogen and a catalyst based on supported palladium.Type: ApplicationFiled: March 1, 2004Publication date: January 18, 2007Applicant: POLIMERI EUROPA S.p.A.Inventors: Maria Caldararo, Riccardo Po, Marco Ricci, Giuliana Schimperna, Nicoletta Cardi
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Patent number: 6576730Abstract: Process for the polymerization of unsaturated vinyl and/or vinylidene monomers which comprises reacting one or more monomers in the presence of heterocyclic initiators having a nitrogen atom bound to an oxygen atom at a temperature ranging from 100 to 130° C.Type: GrantFiled: May 11, 2001Date of Patent: June 10, 2003Assignee: Enichem S.p.A.Inventors: Nicoletta Cardi, Riccardo Po', Giuliana Schimperna, Maria Caldararo, Maria Anna Cardaci, Fabio Garbassi
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Publication number: 20020022724Abstract: Process for the polymerization of unsaturated vinyl and/or vinylidene monomers which comprises reacting one or more monomers in the presence of heterocyclic initiators having a nitrogen atom bound to an oxygen atom at a temperature ranging from 100 to 130° C.Type: ApplicationFiled: May 11, 2001Publication date: February 21, 2002Applicant: ENICHEM S.p.A.Inventors: Nicoletta Cardi, Riccardo Po', Giuliana Schimperna, Maria Caldararo, Maria Anna Cardaci, Fabio Garbassi
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Patent number: 6201101Abstract: The present invention relates to a catalyst having general formula (I): M[SbOn(OH)2(3-n)]x (I) wherein: M represents at least one cation of an element selected from earth-alkaline metals belonging to groups IIA, IIIA, VA, or transition metals belonging to groups IIB, IIIB, VB or VIIIB; n represents an integer between 0 and 2 and x is an integer between 2 and 5. The invention also relates to a process for the synthesis of polyol polyethers which uses a catalyst having general formula (I).Type: GrantFiled: November 12, 1999Date of Patent: March 13, 2001Assignee: Enichem S.p.A.Inventors: Gabriella Tozzola, Riccardo Po′, Nicoletta Cardi
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Patent number: 6184316Abstract: A catalyst for the polymerization of vinylaromatic monomers, and particularly styrene, with a high yield and a high syndiotacticity index, comprises the product consisting of the following two components in contact with each other: A) an &eegr;5-cyclopentadienyl complex of titanium; B) an organo-oxygenated compound of aluminum; and contains a sufficient amount of at least one carboxylated product having the following general formula: R—COO—G (I) wherein R—COO is a carboxylic group comprising the organic radical R having from 1 to 30 carbon atoms, and G represents a hydrogen atom, an aliphatic or aromatic hydrocarbon group having from 1 to 20 carbon atoms or a metal atom, possibly substituted, linked to said carboxylic group.Type: GrantFiled: February 25, 1998Date of Patent: February 6, 2001Assignee: Enichem S.p.A.Inventors: Francesco Masi, Riccardo PO′, Francesco Menconi, Giuseppe Conti, Francesco Ciardelli, Angelina Altomare, Federico Orsini, Roberto Santi, Nicoletta Cardi
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Patent number: 6143824Abstract: Polymeric compositions comprising:a) at least one aromatic thermoplastic polymer or a vinylaromatic thermoplastic (co)polymer;b) at least one thermoplastic resin selected from a (co)polymer optionally modified with rubber, comprising a vinylaromatic monomer and/or a monomer deriving from (meth)acrylic acid and thermoplastic polyesters;c) a compatibilizing block polymer, with at least two blocks, which can be obtained by means of a living radicalic polymerization process.Type: GrantFiled: May 21, 1999Date of Patent: November 7, 2000Assignee: Enichem, S.p.A.Inventors: Nicoletta Cardi, Riccardo Po', Aldo Longo, Andrea Callaioli
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Patent number: 5830959Abstract: Process for the preparation of crystalline vinylaromatic polymers with a high degree of syndiotacticity which comprises polymerizing vinylaromatic monomers in the presence of a catalytic system essentially consisting of:a) a complex of titanium selected from those having the general formula:(CpR.sub.1 R.sub.2 R.sub.3 R.sub.4 R.sub.5)TiX.sub.3 (I)wherein the groups R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent a hydrogen atom or C.sub.1 -C.sub.10 alkyl groups;X represents a hydrogen atom, a halogen such as chlorine, a C.sub.1 -C.sub.10 alkyl or oxyalkyl radical or a C.sub.6 -C.sub.12 oxyaryl radical;b) an alkylaluminoxane; andc) an organic derivative of tin;characterized in that the alkylaluminoxane is methylaluminoxane (MAO) treated at 20.degree.-80.degree. C. under vacuum for 1-100 hours and the organic derivative of tin is tin tetraphenyl.Type: GrantFiled: October 6, 1997Date of Patent: November 3, 1998Assignee: Enichem S.p.A.Inventors: Riccardo Po', Nicoletta Cardi, Roberto Santi
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Patent number: 5780567Abstract: Syndiotactic terpolymers of styrene comprising repetitive units deriving from:a) 99.5-60% in moles of styrene; andb) 0.5-40% in moles of vinyltoluene having a weight average molecular weight of more than 20,000 and a stereoregularity of the syndiotactic type of more than 90%.Type: GrantFiled: May 17, 1996Date of Patent: July 14, 1998Assignee: Enichem S.p.A.Inventors: Riccardo Po, Nicoletta Cardi
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Patent number: 5728784Abstract: Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure which comprises polymerizing vinylaromatic monomers, alone or mixed with at least one other monomer, in the presence of a catalytic system essentially consisting of:a) a complex of titanium or zirconium selected from those having general formula:MR.sub.1 R.sub.2 R.sub.3 R.sub.4, A.sub.1 MR.sub.1 R.sub.2 R.sub.3, A.sub.1 A.sub.2 MR.sub.1 R.sub.2 (I)b) a co-catalyst selected from an alkylalumoxane and a compound of boron having formula (II):BX.sub.1 X.sub.2 X.sub.3 (II)or one of its salts;c) a derivative of tin having general formula:SnR.sub.5 R.sub.6 R.sub.7 R.sub.Type: GrantFiled: November 27, 1996Date of Patent: March 17, 1998Assignee: Enichem S.p.A.Inventors: Riccardo Po', Nicoletta Cardi, Roberto Santi
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Patent number: 5721327Abstract: Process for the preparation of crystalline vinylaromatic polymers with a predominant syndiotactic structure which involves polymerizing vinylaromatic monomers in the presence of a catalytic system comprising: a titanium complex having general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, the same or different, represent a hydrogen atom or a C.sub.1 -C.sub.20 alkyl radical or a C.sub.6 -C.sub.20 arylalkyl or aryl radical, on the condition that at least one of these is different from hydrogen.Type: GrantFiled: February 24, 1997Date of Patent: February 24, 1998Assignee: Enichem S.p.A.Inventors: Roberto Santi, Giuseppe Cometti, Riccardo Po', Nicoletta Cardi
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Patent number: 5629391Abstract: Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure which comprises polymerizing the vinylaromatic monomers in the presence of a catalytic system consisting essentially of:a) a complex of titanium having the formula (I):Ti(OCONRR').sub.n (I)wherein R and R', the same or different, represent a C.sub.1 -C.sub.12 aliphatic radical or C.sub.6 -C.sub.12 aromatic radical whereas n is an integer equal to 3 or 4;b) a cocatalyst selected from aluminoxane and a compound of boron having formula (II):BX.sub.1 X.sub.2 X.sub.3 (II)wherein X.sub.1, X.sub.2 and X.sub.3, the same or different, represent a C.sub.1 -C.sub.20 perfluorinated hydrocarbon radical.Type: GrantFiled: May 28, 1996Date of Patent: May 13, 1997Assignee: Enichem S.p.A.Inventors: Nicoletta Cardi, Riccardo Po', Roberto Santi, Giuseppe Cometti
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Patent number: 5369187Abstract: Polymers having a very good combination of chemical, mechanical and process properties, and particularly useable either alone or as mixtures, as high-tenacity thermoplastic polymer and as elastomers or elastomeric modifiers, contain, randomly distributed along their chain, repeating cycloketonic structural units having the following general formula (I): ##STR1## wherein: A represents a tetravalent aliphatic or cycloaliphatic, substituted or non-substituted moiety containing a total number of from 4 to 50, preferably from 4 to 20, carbon atoms.Such polymers can be prepared by means of a process which comprises reacting, in a liquid media, a polydiene containing adjacent structural units derived from the 1,4-cis polymerization of conjugated dienes, with carbon monoxide, in the presence of free radical generating compounds and, optionally, a compound capable of acting as a hydrogen donor.Type: GrantFiled: June 3, 1993Date of Patent: November 29, 1994Assignees: Consiglio Nazionale Delle Ricerche, Enichem S.p.A.Inventors: Anna Sommazzi, Nicoletta Cardi, Fabio Garbassi, Chrissostomos Chatgilialoglu
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Patent number: 5331065Abstract: Polyethyleneterephthalate (PET) originating from the sorted collection of solid urban refuse can be regraded and recycled as such or mixed with virgin PET if treated at high temperature with an oxazoline of general formula: ##STR1##Type: GrantFiled: July 7, 1993Date of Patent: July 19, 1994Assignees: Eniricerche S.p.A., Enichem S.p.A.Inventors: Riccardo Po', Nicoletta Cardi, Luisa Fiocca, Antonio Gennaro, Giorgio Giannotta, Ernesto Occhiello