Patents by Inventor Tania Trombetta

Tania Trombetta 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: 7655310
    Abstract: Polyurethanes-urea based on perfluoropolyethers comprising ionizable groups and pendant groups having the following structure: —RI—Si(ORII)n(OH)3?n??(I) wherein: RI is alkylene from 1 to 10 carbon atoms; RII is an alkyl group from 1 to 4 carbon atoms; n is an integer from 0 to 3.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: February 2, 2010
    Assignee: Solvay Solexis S.p.A.
    Inventor: Tania Trombetta
  • Patent number: 7323084
    Abstract: Use for the paper sizing of aqueous polyurethane dispersions from (per)fluoropolyethers obtainable by reaction among the following compounds: a) (per)fluoropolyether diols having a number average molecular weight from 400 to 5,000; b) diisocyanates having formula: OCN—R—NCO??(VIa) ?wherein R is an aliphatic, cycloaliphatic bifunctional radical; or an aromatic bifunctional radical; c) diols containing one carboxylic function and optionally one or both the following components: d) hydrazine and/or aliphatic diamines; e) monofunctional hydroxylic (per)fluoropolyethers having a number average molecular weight in the range 300-1,000.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: January 29, 2008
    Assignee: Ausimont S.p.A.
    Inventors: Stefano Turri, Tania Trombetta, Paolo Iengo
  • Patent number: 7323435
    Abstract: Fluorinated oligourethanes, having number average molecular weight lower than or equal to 9,000, having a branched structure, formed of the following monomers and macromers: a) aliphatic, cycloaliphatic or aromatic polyisocyanates, b) heterofunctional hydrogenated monomers having general formula: X0—(CR1AR2A)b—Y0 ??(Ib) one or more of the following compounds: c) bifunctional hydroxyl (per)fluoropolyethers (PFPE diols) having number average molecular weight in the range 400-3,000, e) monofunctional hydroxyl (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes (e?), having number average molecular weight in the range 300-1,000, and optionally the following compounds: d) heterofunctional monomers, dI) hydrogen-active compounds, capable to form bonds with the NCO functions stable at the hydrolysis but weak at heat.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: January 29, 2008
    Assignee: Ausimont S.p.A.
    Inventors: Stefano Turri, Marinella Levi, Tania Trombetta
  • Patent number: 7015278
    Abstract: Formulations formed by aqueous dispersions of cationic ionomer fluorinated polyurethanes based on (per)fluoropolyethers, having end groups constituted by —NCO groups reacted with hydrogenactive compounds to give covalent bonds stable to water but thermolabile, usable for the surface hydro- and oil-repellent treatment of textiles.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: March 21, 2006
    Assignee: Solvay Solexis, S.p.A.
    Inventors: Tania Trombetta, Stefano Turri
  • Patent number: 6992132
    Abstract: Compositions comprising anionic ionomeric polyurethanes crosslinkable in a wide temperature range, said composition comprising the following components: I) an aqueous dispersion of a linear crosslinkable ionomeric polyurethane, containing carboxylic groups and having a perfluoropolyether structure; II) a crosslinking agent, the ratio between the equivalents of the functional groups of the crosslinking agent and of the carboxylic groups of component I) being at least 0.7 up to 1.5, preferably 0.9–1.2, said crosslinking agent being dispersible or soluble in the dispersion component I).
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 31, 2006
    Assignee: Solvay Solexis, S.p.A.
    Inventors: Tania Trombetta, Fiorenza D'Aprile, Stefano Turri
  • Publication number: 20050164010
    Abstract: Polyurethanes-urea based on perfluoropolyethers comprising ionizable groups and pendant groups having the following structure: —RI—Si(ORII)n(OH)3?n ??(I) wherein: RI is alkylene from 1 to 10 carbon atoms; RII is an alkyl group from 1 to 4 carbon atoms; n is an integer from 0 to 3.
    Type: Application
    Filed: January 27, 2005
    Publication date: July 28, 2005
    Applicant: SOLVAY SOLEXIS S.p.A.
    Inventor: Tania Trombetta
  • Publication number: 20030229176
    Abstract: Compositions comprising anionic ionomeric polyurethanes crosslinkable in a wide temperature range, said composition comprising the following components:
    Type: Application
    Filed: June 4, 2003
    Publication date: December 11, 2003
    Applicant: SOLVAY SOLEXIS S.p.A.
    Inventors: Tania Trombetta, Fiorenza D'Aprile, Stefano Turri
  • Publication number: 20030166769
    Abstract: Formulations formed by aqueous dispersions of cationic ionomer fluorinated polyurethanes based on (per)fluoropolyethers, having end groups constituted by —NCO groups reacted with hydrogenactive compounds to give covalent bonds stable to water but thermolabile, usable for the surface hydro- and oil-repellent treatment of textiles.
    Type: Application
    Filed: December 30, 2002
    Publication date: September 4, 2003
    Applicant: AUSIMONT S.p.A.
    Inventors: Tania Trombetta, Stefano Turri
  • Publication number: 20030136533
    Abstract: Use for the paper sizing of aqueous polyurethane dispersions from (per)fluoropolyethers obtainable by reaction among the following compounds:
    Type: Application
    Filed: June 28, 2002
    Publication date: July 24, 2003
    Applicant: Ausimont S.p.A.
    Inventors: Stefano Turri, Tania Trombetta, Paolo Iengo
  • Patent number: 6579835
    Abstract: Use of fluorinated polyurethanes thermally crosslinkable for obtaining coatings having an improved friction coefficient for the dry lubrication of rubbers, plastics, metals, glass, said polyurethanes obtainable from aqueous dispersions of cationic oligourethanes having a molecular weight≦9,000, formed by: a) polyisocyanates, having NCO functionality higher than 2, b) bifunctional hydrogenated monomers, c) bifunctional hydroxylated (per)fluoropolyethers, e) monofunctional hydroxyl or carboxylic (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes optionally: d) hydrogenated monomers by which it is possible to insert a crosslinkable chemical function in the oligourethane; dI) hydrogen-active compounds, able to form with the NCO functions thermolabile bonds.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: June 17, 2003
    Assignee: Ausimont S.p.A.
    Inventors: Massimo Scicchitano, Tania Trombetta, Stefano Turri
  • Patent number: 6500894
    Abstract: Compositions formed of aqueous dispersions comprising a mixture of the following fluorinated polymers: A) (meth)acrylic (co)polymers containing fluorine, and B) cationic ionomers of fluorinated polyurethanes based on (per) fluoropolyethers, the weight ratio A):B), calculated on the dry product, being in the range 70:30 and 30:70.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 31, 2002
    Assignee: Ausimont S.p.A.
    Inventors: Daria Lenti, Tania Trombetta, Gabriella Carignano
  • Publication number: 20020016267
    Abstract: Use of fluorinated polyurethanes thermally crosslinkable for obtaining coatings having an improved friction coefficient for the dry lubrication of rubbers, plastics, metals, glass, said polyurethanes obtainable from aqueous dispersions of cationic oligourethanes having a molecular weight ≦9,000, formed by: a) polyisocyanates, having NCO functionality higher than 2, b) bifunctional hydrogenated monomers, c) bifunctional hydroxylated (per)fluoropolyethers, e) monofunctional hydroxyl or carboxylic (per)fluoropoly-ethers or monofunctional hydroxyl (per)fluoroalkanes optionally: d) hydrogenated monomers by which it is possible to insert a crosslinkable chemical function in the oligourethane; dI) hydrogen-active compounds, able to form with the NCO functions thermolabile bonds.
    Type: Application
    Filed: June 8, 2001
    Publication date: February 7, 2002
    Applicant: Ausimont S.p.A.
    Inventors: Massimo Scicchitano, Tania Trombetta, Stefano Turri
  • Patent number: 6127498
    Abstract: Hydrogenated fluoromodified polymers obtainable by reaction among hydrogenated polymers and the modifier having a polyether structure:RfO(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n --CF.sub.2 --A.sub.q --T.sub.p (I)wherein A is a linking bridge bound to the end group --CF.sub.2 -- of the perfluoropolyether chain, T represents one or more reactive functional groups; p and q are integers, p ranges from 1 to 4, q is an integer from 0 to 1; m and n are integers such that m/n is comprised between 0.2 and 5, Rf is a perfluoroalkyl from 1 to 3 carbon atoms.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: October 3, 2000
    Assignee: Ausimont S.p.A.
    Inventors: Claudio Tonelli, Giovanni Simeone, Tania Trombetta
  • Patent number: 5332798
    Abstract: Fluorinated polyurethanes and polyurethane-ureas, of heat-processable, elastomeric type, constituted by rubber-like blocks and hard blocks, comprising segments derived from:(a) a macroglycol or polybutadiene-diol;(b) a perfluoropolyether-diol of formulaHO(CH.sub.2 CH.sub.2 O).sub.n --CH.sub.2 --Q--CH.sub.2 --(OCH.sub.2 CH.sub.2).sub.n OHwherein Q is a perfluoropolyether chain and "n" is comprised within the range of from 1 to 5;(c) an aromatic, aliphatic, or cycloaliphatic diisocyanate; and(d) an aliphatic, cycloaliphatic or aromatic diol or diamine, containing from 2 to 14 carbon atoms.They contain from 4 to 30% by weight of fluorine, from 10 to 60% by weight of hard components, with the molar ratio of rubber-like components (a): (b) comprised within the range of from 2 to 20. At least 80% of rubber-like segments deriving from (b) component are connected, at least at one of their sides, through a segment deriving from (c) component, with a rubber-like segment deriving from (a) component.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: July 26, 1994
    Assignee: Ausimont S.p.A.
    Inventors: Enrico Ferreri, Francesco Giavarini, Claudio Tonelli, Tania Trombetta, Ronald E. Zielinski