Patents by Inventor Francesco Fuso

Francesco Fuso 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).

  • Stabilizer combination
    Patent number: 5997769
    Abstract: A description is given of novel stabilizer mixtures comprising at least one compound of the formula ##STR1## and at least one compound of the formula ##STR2## in which the variables are as defined in the claims. The novel stabilizer mixtures are suitable for stabilizing organic material, especially textile fiber materials, against damage by light, oxygen and heat.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: December 7, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rolf Tittmann, Francesco Fuso, Gerhard Reinert, Hans Peter Harri
  • Process for improving the photochemical stability of dyeings and prints on polyester fibres
    Patent number: 5984976
    Abstract: A process for the photochemical stabilization of dyeings and prints on polyester fibre material, which comprises treating the polyester fibre material with a compound of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, n and m are as defined herein.The treated dyed or printed polyester fibre material is distinguished by good fastness to light and heat and has a high sun protection factor.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: November 16, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Francesco Fuso
  • Process for increasing the sun protection factor of cellulosic fibre materials
    Patent number: 5938793
    Abstract: 050234814The present invention relates to a process for increasing the sun protection factor of cellulosic fiber materials, which comprises treating the cellulosic fiber materials with at least one reactive dye and at least one reactive UV absorber.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: August 17, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Gerhard Reinert, Francesco Fuso, Rolf Hilfiker
  • Process for increasing the sun protection factor of cellulosic fiber materials
    Patent number: 5914444
    Abstract: Process for increasing the sun protection factor of cellulosic fibre materials by treating the cellulosic fibre materials with at least one direct dye and at least one UV absorber.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: June 22, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Gerhard Reinert, Francesco Fuso, Rolf Hilfiker
  • Stabilizer combination
    Patent number: 5871669
    Abstract: A description is given of novel stabilizer mixtures comprising at least one compound of the formula ##STR1## and at least one compound of the formula ##STR2## in which the variables are as defined in the claims. The novel stabilizer mixtures are suitable for stabilizing organic material, especially textile fibre materials, against damage by light, oxygen and heat.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: February 16, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rolf Tittmann, Francesco Fuso, Gerhard Reinert, Hans Peter Harri
  • Use of hydroxybenzotriazoles for enhancing the sun protection factor of cellulosic fibre materials
    Patent number: 5811081
    Abstract: The invention relates to the use of the compound of formula ##STR1## wherein the variables are as defined in the claims, for enhancing the sn protection factor of cellulosic fiber materials.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: September 22, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • UV absorbers, their preparation and use
    Patent number: 5786476
    Abstract: The invention relates to compounds of formula ##STR1## wherein the variables are as claimed in the claims. The compounds are suitable as UV absorbers for the photochemical stabilisation of undyed or dyed cellulosic fibre materials for enhancing their sun protection factor.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 28, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Francesco Fuso
  • UV absorbers, their preparation and the use thereof
    Patent number: 5786475
    Abstract: The invention relates to compounds of formula ##STR1## wherein the variables have the meanings given in the claims. The compounds are suitable for use as UV absorbers for the photochemical stabilization of undyed, dyed or printed textile fiber materials and for enhancing the sun protection factor thereof.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: July 28, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • UV absorbers, their preparation and the use thereof
    Patent number: 5700295
    Abstract: The invention relates to compounds of formula ##STR1## wherein the variables have the meanings given in the claims. The compounds are suitable for use as UV absorbers for the photochemical stabilisation of undyed, dyed or printed textile fiber materials and for enhancing the sun protection factor thereof.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: December 23, 1997
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Water-soluble triazines
    Patent number: 5696262
    Abstract: The invention relates to novel water-soluble triazines of formula ##STR1## wherein the variables are as defined in the claims, to a process for their preparation and to the use thereof for the photochemical and thermal stabilisation of dyed or undyed polyamide fiber materials.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: December 9, 1997
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Sulphonated phenolic triazine antioxidants for polyamide fibers
    Patent number: 5578667
    Abstract: The invention relates to novel water-soluble antioxidants of formula ##STR1## wherein the variables are as defined in the claims, to a process for their preparation and to the use thereof for the photochemical and thermal stabilisation of dyed and undyed polyamide fibre materials.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: November 26, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Stabilization of dyeings of polyamide fibres
    Patent number: 5356443
    Abstract: A process for enhancing the thermal and/or photochemical stability of dyeings on dimensionally stabilised polyamide fibres, which comprises treating the polyamide fibre material, before the fixation step for producing defined, resilient forms and dimensions, in aqueous medium with a compound of formula I(A-Y-).sub.n Z(-W).sub.m (1)wherein A, W, Y, Z, n and m are as defined in claim 1.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: October 18, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Thys Bouwknegt, Francesco Fuso
  • Water-soluble triazine derivatives
    Patent number: 5312917
    Abstract: Water-soluble triazine derivatives of formula (1) are disclosed. The novel compounds are representatives of sterically hindered amines (HALS stabilisers) and are suitable for enhancing the thermal and photochemical stability of undyed and dyed polyamide fibre materials.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: May 17, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Water-soluble triazines
    Patent number: 5281707
    Abstract: There is described a process for the photochemical and thermal stabilization of polyamide fibre materials according to claim 1 and also novel water-soluble triazine derivatives according to claim 7.The novel process and compounds confer good thermal and photochemical stability on polyamide dyeings and fibres.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: January 25, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Thermal and photochemical stabilization of dyeings on polyamide fibers:sterically hindered phenol and ultra-violet absorber
    Patent number: 5181935
    Abstract: Processes for improving the thermal and/or photochemical stability of undyed and dyed polyamide fibers by treatment with an agent from an aqueous bath containing (A) a compound of the formula (I) defined in claim 1 and (B) a UV absorber.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: January 26, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Francesco Fuso
  • Photochemical and thermal stabilization of polyamide fibre materials with tetra-methyl-piperidinyl substituted triazine
    Patent number: 5160346
    Abstract: There is described a process for the photochemical and thermal stabilization of polyamide fiber materials according to claim 1 and also novel water-soluble triazine derivatives according to claim 7.The novel process and compounds confer good thermal and photochemical stability on polyamide dyeings and fibres.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: November 3, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Thermal and photochemical stabilisation of dyeings on polyamide fibres: application of sulfonated hindered phenolic derivative
    Patent number: 5096456
    Abstract: A process for improving the thermal and/or photochemical stability of dyeings on polyamide fibres by applying to said fibres, from an aqueous medium, water-soluble phenolic antioxidants of formula (A--Y--).sub.n Z(--W).sub.m, wherein A, Y, Z, W, m and n are as defined in claim 1.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: March 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Francesco Fuso