Patents by Inventor Marco Foa

Marco Foa 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).

  • Patent number: 7253250
    Abstract: A method of synthesizing biodegradable aliphatic polyesters from one or more aliphatic dicarboxylic acids or diesters of the said acids and one or more linear or branched aliphatic glycols, comprising a first esterification or transesterification step and a second deglycolation under vacuum step, in which the catalyst is monobutylstannoic acid both for the esterification or transesterification step and for the deglycolation under vacuum step.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: August 7, 2007
    Assignee: Ministero dell 'Universita'e della Ricerca Scientifica e Technologica
    Inventors: Fernanda Farachi, Marco Foa', Tiziana Milizia
  • Publication number: 20050171327
    Abstract: A method of synthesizing biodegradable aliphatic polyesters from one or more aliphatic dicarboxylic acids or diesters of the said acids and one or more linear or branched aliphatic glycols, comprising a first esterification or transesterification step and a second deglycolation under vacuum step, in which the catalyst is monobutylstannoic acid both for the esterification or transesterification step and for the deglycolation under vacuum step.
    Type: Application
    Filed: February 17, 2005
    Publication date: August 4, 2005
    Applicant: Ministero dell'Universita' e della Ricerca
    Inventors: Fernanda Farachi, Marco Foa', Tiziana Milizia
  • Patent number: 6727342
    Abstract: Polyester resins formed by recurring units X=[O—(CH2)n—OCO—(CH2)m—CO] and/or Y=[O—(CH2)k—CO], where the half-sum of n+m is equal to or greater than 6 and k is a number equal to or greater than 6, or by copolymers comprising units and/or sequences having the formula xi[O—(CH2)ni—OCO—(CH2)mi—CO]; yj[O—(CH2)kj—CO] where: i,j=1-5; ni=2-22; mi=0-20; kj=1=21; (Formula (1)) and xi and yj vary between 0 and 1 and are molar fractions of the various units such that (Formula (2)), are used for the preparation of products in which a permeability to water vapour of less than 350 g×30 &mgr;m/m2 per day, measured at 38° C. and 90% RH and good biodegradability are required.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: April 27, 2004
    Assignee: Ministero Dell'Universita'E Della Ricerca Scientifica Technologica
    Inventors: Catia Bastioli, Marco Foa', Giandomenico Cella, Giovanni Floridi, Fernanda Farachi, Tiziana Milizia
  • Publication number: 20030220466
    Abstract: A method of synthesizing biodegradable aliphatic polyesters from one or more aliphatic dicarboxylic acids or diesters of the said acids and one or more linear or branched aliphatic glycols, comprising a first esterification or transesterification step and a second deglycolation under vacuum step, in which the catalyst is monobutylstannoic acid both for the esterification or transesterification step and for the deglycolation under vacuum step.
    Type: Application
    Filed: March 4, 2003
    Publication date: November 27, 2003
    Applicant: Ministero Dell'Universita' E Della Ricerca Scientifica E Tecnologica
    Inventors: Fernanda Farachi, Marco Foa', Tiziana Milizia
  • Patent number: 6562939
    Abstract: A method of synthesizing biodegradable aliphatic polyesters from one or more aliphatic dicarboxylic acids or diesters of the said acids and one or more linear or branched aliphatic glycols, comprising a first esterification or transesterification step and a second deglycolation under vacuum step, in which the catalyst is monobutylstannoic acid both for the esterification or transesterification step and for the deglycolation under vacuum step.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: May 13, 2003
    Assignee: Ministero Dell ′Universita′ e Della Ricerca Scientifica e Tecnologica
    Inventors: Fernanda Farachi, Marco Foa′, Tiziana Milizia
  • Patent number: 5714623
    Abstract: A process for the preparation of carboxylic acids and esters thereof, which involves the steps of (a) mixing an unsaturated fatty acid or corresponding ester with an oxidative substance in the presence of a catalyst selected from the group consisting of oxides of tungsten and molybdenum and their acids and alkaline salts, (b) reacting the product mixture from step (a), which comprises vicinal diols, with oxygen or an oxygen-containing gas in the presence of a cobalt-containing compound which acts as a catalyst. The product mixture from step (a) is not subjected to any purification treatments prior to undergoing step (b).
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: February 3, 1998
    Assignee: Novaol S.r.l.
    Inventors: Giampiero Sabarino, Andrea Gardano, Marco Foa'
  • Patent number: 5599514
    Abstract: Process for recovering and re-using cobalt and tungsten from reaction liquors, in which said reaction liquors are treated:a) With an alkali-earth metal hydroxide in order to precipitate cobalt and tungsten, and the resulting precipitate is subsequently treated with a strong mineral acid in order to be able to dissolve the cobalt salt and separate it from H.sub.2 WO.sub.4 precipitate; orb) With an alkali metal hydroxide in order to precipitate and separate Co(OH).sub.2, and the resulting alkaline solution is then treated with an alkali-earth metal compound which is filtered and treated with a strong mineral acid in order to obtain H.sub.2 WO.sub.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: February 4, 1997
    Assignee: Novaol S.R.L.
    Inventors: Andrea Gardano, Sauro Strologo, Marco Foa'
  • Patent number: 5352830
    Abstract: New phosphorous organic amides of a specific formula and their use as stabilizers for polymers and, other organic materials.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: October 4, 1994
    Assignee: Himont Incorporated
    Inventors: Marco Foa, Sauro Strologo, Giampiero Sabarino
  • Patent number: 5336793
    Abstract: A method of preparing carboxylic acids or esters thereof by the oxidative cleavage of unsaturated fatty acids or esters thereof is carried out in a two-phase aqueous-organic system in which the organic phase contains the unsaturated fatty acid and/or the esters thereof and the aqueous phase contains hydrogen peroxide. The oxidative cleavage is carried out in the presence of a catalytic system including a catalyst belonging to the group constituted by tungstic and molybdic acids and alkaline salts thereof, and an onium salt which acts as a phase-transfer agent for the catalyst, and has the formula:(R.sub.2 R.sub.3 R.sub.4 R.sub.5 M).sup.+ Y.sup.-in which R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent hydrocarbon groups of which at least one must have more than 10 carbon atoms,M is N or P, andY.sup.- is an inorganic anion.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: August 9, 1994
    Assignee: Novamont S.p.A.
    Inventors: Andrea Gardano, Giampiero Sabarino, Marco Foa
  • Patent number: 5326801
    Abstract: New organic phosphites of a specific formula are used as stabilizers for polymers and other organic materials.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: July 5, 1994
    Assignee: Himont Incorporated
    Inventors: Marco Foa, Sauro Strologo
  • Patent number: 5235025
    Abstract: Cross-linkable thermotropic liquid crystalline aromatic polyesters comprising at least one unit derived from an aromatic diol substituted with at least one allyl group, in combination with units derived from dioxyaryl and dicarboxyaryl monomers.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: August 10, 1993
    Assignee: Himont Italia S.r.l.
    Inventors: Francesco Casagrande, Marco Foa, Carlo Federici, L. Lawrence Chapoy
  • Patent number: 5215891
    Abstract: A process for preparing a compound of formula I: ##STR1## wherein R.sub.1 represents a hydroxy protecting group and R.sub.2 represents a carboxy protecting group, which comprises:hydrolyzing a compound of formula II ##STR2## wherein R.sub.1 and R.sub.2 are as defined above and R represents an alkyl, alkenyl or phenylalkyl group having from 1 to 18 carbon atoms, in the presence of an enzyme capable of selectively hydrolyzing the ester group of the 2-substituent thereof.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: June 1, 1993
    Assignee: Farmitalia Carlo Erba
    Inventors: Maria Altamura, Pietro Cesti, Franco Francalanci, Marcello Marchi, Marco Foa', Stefano Cambiaghi, Franco Dallatomasina
  • Patent number: 5185424
    Abstract: An aromatic polyesteramide possessing thermotropic liquid crystalline polymer characteristics, which are easily workable in the molten state and have the mesogenic group in the main chain, are obtained by condensing possible substituted aminophenols and hydroquinone derivatives with aromatic dicarboxylic acids.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: February 9, 1993
    Assignee: Himont Italia S.r.l.
    Inventors: Francesco Casagrande, Marco Foa', Larry L. Chapoy
  • Patent number: 5162548
    Abstract: New organic phosphites of the formula ##STR1## are used as stabilizers for polymers and other organic materials. The definition of groups R, R', and R.sub.1 may be found in the disclosure.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: November 10, 1992
    Assignee: Himont Incorporated
    Inventors: Marco Foa', Sauro Strologo
  • Patent number: 5146008
    Abstract: A process for the synthesis of phenyl substituted aromatic diols, obtained by dehydrogenation of the corresponding substituted cyclohexyl derivatives in the presence of a palladium supported catalyst, said palladium supported catalyst being prepared by a process which comprises treating a palladium hydrolysis compound with reducing agents.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: September 8, 1992
    Assignee: Himont italia S.r.l.
    Inventors: Andrea Gardano, Alfredo Coassolo, Francesco Casagrande, Marco Foa, Larry L. Chapoy
  • Patent number: 5098531
    Abstract: Preparation of 2-aryl-hydroquinones of formula (I) by oxidizing by an electrochemical route a compound of formula (II): ##STR1## wherein A represents an aryl group optionally substituted with groups compatible with the reaction conditions in an acidic aqueous reaction medium, at temperatures within the range of from 10.degree. to 100.degree. C., and with anodes of graphite or PbO.sub.2. The products are used in photography and in the field of liquid-crystal polymers.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 24, 1992
    Assignee: Istituto Guido Donegani S.p.A.
    Inventors: Norberto Gatti, Marco Foa
  • Patent number: 5091066
    Abstract: There is disclosed a process for the preparation of 2-methyl-5-pyrazinoic acid consisting of electrochemically oxidizing a compound having formula: ##STR1## wherein X is --OH, Cl, Br, --O--CO--R, --O--SO.sub.2 --R, in which R is a C.sub.1 -C.sub.5 alkyl radical, optionally substituted with F or Cl, or it is a C.sub.6 -C.sub.12 aryl radical, in an aqueous alkaline medium, at a temperature ranging from 20.degree. C. to 90.degree. C., using anodes coated with nickel oxide-hydroxide.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: February 25, 1992
    Assignee: Presidenza del Consiglio dei Ministri
    Inventors: Marco Foa, Fabrizio Forlini, Norberto Gatti, Giampiero Borsotti
  • Patent number: 5017678
    Abstract: Melt-formable thermotropic liquid crystalline polymers containing groups derived from terephthalic acid and a mixture of phenyl hydroquinone, 2-(.alpha.-phenylisopropyl) hydroquinone and, if desired, 2,5 bis (.alpha.-phenylisopropyl) hydroquinone.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: May 21, 1991
    Assignee: Montedison S.p.A.
    Inventors: Umberto Giannini, Alfredo Coassolo, Marco Foa', Giampiero Sabarino, L. Lawrence Chapoy
  • Patent number: 5013819
    Abstract: Liquid-crystalline, thermotropic, aromatic polyesters processable in the molten state, comprising units derived from hydroquinone mono- and possibly di-substituted with aralkyl groups.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: May 7, 1991
    Assignee: Montedison S.P.A.
    Inventors: Alfredo Coassolo, Marco Foa', L. Lawrence Chapoy
  • Patent number: 5003028
    Abstract: Thermoplastic linear aromatic polyetherdiketones containing repeating units of formula: ##STR1## wherein R is an arylene radical containing from 1 to 3 aromatic rings directly joined among them, or condensed, or joined by one or more of the following difunctional groups:--O--, --CO--; --CO--CO--, --SO.sub.2 --, --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 --.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: March 26, 1991
    Assignee: Montedison S.p.A
    Inventors: Marco Foa', Elena Bencini