Patents by Inventor Omar Teofrasti

Omar Teofrasti 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).

  • Publication number: 20200256010
    Abstract: A high-quality artificial leather is described, having a suede appearance and colors within the grey-black range, the light fastness of the colors according to the method SAE J 1885 225.6 KJ/m2 being higher than or equal to 4; the lightfastness of the colors according to the method SAE J 1885 488.8 KJ/m2 being not lower than 3; said artificial leather having a tassel on the surface of the leather itself. The average length of the tassel is between 200 and 500 microns. The soft segments consist of at least one polycarbonate diol selected from polyalkylene carbonate diols and at least one polyester diol; the hard segments consist of urethane groups deriving from the reaction between free isocyanate groups and water; and the total content of carbon black is between 0.025 and 6% by weight.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Inventors: Carmine Carlo Ammirati, Omar Teofrasti, Walter Cardinali
  • Publication number: 20190284754
    Abstract: A high-quality artificial leather is described, having a suede appearance and colors within the grey-black range, the light fastness of the colors according to the method SAE J 1885 225.6 KJ/m2 being higher than or equal to 4; the lightfastness of the colors according to the method SAE J 1885 488.8 KJ/m2 being not lower than 3; said artificial leather having a tassel on the surface of the leather itself. The average length of the tassel is between 200 and 500 microns. The soft segments consist of at least one polycarbonate diol selected from polyalkylene carbonate diols and at least one polyester diol; the hard segments consist of urethane groups deriving from the reaction between free isocyanate groups and water; and the total content of carbon black is between 0.025 and 6% by weight.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 19, 2019
    Inventors: Carmine Carlo AMMIRATI, Omar TEOFRASTI, Walter CARDINALI
  • Patent number: 10351993
    Abstract: An artificial leather having a suede appearance and colors within the grey-black range and high color fastness comprising a microfibrous component and an elastomeric matrix; the microfibrous component consisting of polyester microfibers having a count of 0.01 to 0.50 dtex; the elastomeric matrix consisting of polyurethane consisting of soft and hard segments; the ratio between the elastomeric matrix and the microfibrous component ranging from 20/80 and 50/50 by mass; the microfibrous component containing carbon black pigment in a percentage of 0.05 to 2.00% by mass; the elastomeric matrix containing carbon black pigment in a percentage of 0 to 10% by weight; the carbon black always having an average dimension smaller than 0.4 microns. The average length of the tassel is between 200 and 500 microns. The soft segments consist of at least one polycarbonate diol selected from polyalkylene carbonate diols and at least one polyester diol.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 16, 2019
    Assignee: ALCANTARA S.P.A.
    Inventors: Carmine Carlo Ammirati, Omar Teofrasti, Walter Cardinali
  • Publication number: 20170198431
    Abstract: An artificial leather having a suede appearance and colours within the grey-black range and high colour fastness comprising a microfibrous component and an elastomeric matrix; the microfibrous component consisting of polyester microfibres having a count of 0.01 to 0.50 dtex; the elastomeric matrix consisting of polyurethane consisting of soft and hard segments; the ratio between the elastomeric matrix and the microfibrous component ranging from 20/80 and 50/50 by mass; the microfibrous component containing carbon black pigment in a percentage of 0.05 to 2.00% by mass; the elastomeric matrix containing carbon black pigment in a percentage of 0 to 10% by weight; the carbon black always having an average dimension smaller than 0.4 microns. The average length of the tassel is between 200 and 500 microns. The soft segments consist of at least one polycarbonate diol selected from polyalkylene carbonate diols and at least one polyester diol.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Inventors: Carmine Carlo AMMIRATI, Omar TEOFRASTI, Walter CARDINALI
  • Publication number: 20110070422
    Abstract: An artificial leather having a suede appearance and colours within the grey-black range and high colour fastness comprising a microfibrous component and an elastomeric matrix; the microfibrous component consisting of polyester microfibres having a count of 0.01 to 0.50 dtex; the elastomeric matrix consisting of polyurethane consisting of soft and hard segments; the ratio between the elastomeric matrix and the microfibrous component ranging from 20/80 and 50/50 by mass; the microfibrous component containing carbon black pigment in a percentage of 0.05 to 2.00% by mass; the elastomeric matrix containing carbon black pigment in a percentage of 0 to 10% by weight; the carbon black always having an average dimension smaller than 0.4 microns. The average length of the tassel is between 200 and 500 microns. The soft segments consist of at least one polycarbonate diol selected from polyalkylene carbonate diols and at least one polyester diol.
    Type: Application
    Filed: December 3, 2008
    Publication date: March 24, 2011
    Applicant: ALCANTARA S.P.A.
    Inventors: Carmine Carlo Ammirati, Omar Teofrasti, Walter Cardinali
  • Patent number: 7754292
    Abstract: In one embodiment, a process is disclosed for the preparation of a multilayer intermediate product impregnated with polyurethane that is useful for the production of soft synthetic leather having enhanced mechanical resistance. The process comprises the steps of: a. producing a microfibrous non-woven intermediate product that includes microfibers of one or more polymers selected from the group consisting of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyacrylonitrile, and polyamide; b. producing an intermediate multilayer product by adhesive coupling, the intermediate multilayer product including at least one layer of the non-woven microfibrous intermediate product and at least one layer of a reinforcing textile product; and c. impregnating the multilayer intermediate product with one or more polyurethane solutions, thereby obtaining a multilayer intermediate product impregnated with polyurethane.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: July 13, 2010
    Assignee: Alcantara S.p.A.
    Inventors: Omar Teofrasti, Eraldo Spila, Carmine Carlo Ammirati
  • Patent number: 7282253
    Abstract: A non-woven fabric with melange-type visual appearance and endowed with high-durability comprising a fiber part and a matrix binder characterized by the binder matrix being a polyurethane characterized by the presence of soft segments and rigid segments, the former constituted from mixtures of polycarbonate-polyols and polyester-polyols, and the latter, from urethane groups deriving from the reaction of isocyanates with ureic polyols, and groups deriving from the reaction between the free isocyanate groups and water, and the fiber part comprises a fiber of melange appearance that is a mixture of two or more fibers with different dyeability characteristics.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 16, 2007
    Inventors: Silvia Marini, Omar Teofrasti
  • Publication number: 20070066173
    Abstract: In one embodiment, a process is disclosed for the preparation of a multilayer intermediate product impregnated with polyurethane that is useful for the production of soft synthetic leather having enhanced mechanical resistance. The process comprises the steps of: a. producing a microfibrous non-woven intermediate product that includes microfibers of one or more polymers selected from the group consisting of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyacrylonitrile, and polyamide; b. producing an intermediate multilayer product by adhesive coupling, the intermediate multilayer product including at least one layer of the non-woven microfibrous intermediate product and at least one layer of a reinforcing textile product; and c. impregnating the multilayer intermediate product with one or more polyurethane solutions, thereby obtaining a multilayer intermediate product impregnated with polyurethane.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 22, 2007
    Applicant: ALCANTARA S.p.A.
    Inventors: Omar Teofrasti, Eraldo Spila, Carmine Ammirati
  • Publication number: 20050136228
    Abstract: A non-woven fabric with melange-type visual appearance and endowed with high-durability comprising a fiber part and a matrix binder characterized by the binder matrix being a polyurethane characterized by the presence of soft segments and rigid segments, the former constituted from mixtures of polycarbonate-polyols and polyester-polyols, and the latter, from urethane groups deriving from the reaction of isocyanates with ureic polyols, and groups deriving from the reaction between the free isocyanate groups and water, and the fiber part comprises a fiber of melange appearance that is a mixture of two or more fibers with different dyeability characteristics.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Silvia Marini, Omar Teofrasti