Patents by Inventor Giovanni Da Roit

Giovanni Da Roit 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).

  • Permanent surface modifiers
    Patent number: 7683202
    Abstract: The invention relates to novel compounds of the formula I, II; III or IV wherein the general symbols are as defined in claim 1. These compounds are useful as surface modifiers for polymers in order to improve resistance to fog formation or water and oil repellency.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: March 23, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Piero Piccinelli, Manuele Vitali, Andrea Landuzzi, Giovanni Da Roit, Primo Carrozza, Markus Grob, Nicola Lelli
  • Alkylaminosiloxanes as corrosion inhibitors
    Patent number: 7498293
    Abstract: The instant invention discloses a composition comprising a carrier, preferably a packaging material, and at least one compound of the formula (I) in which the general symbols are as defined in claim 1 as corrosion inhibor for protecting metallic surfaces.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: March 3, 2009
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Piero Piccinelli, Stefano Gardi, Giovanni Da Roit
  • New permanent surface modifiers
    Publication number: 20080249252
    Abstract: The invention relates to novel compounds of the formula I, II; III or IV wherein the general symbols are as defined in claim 1. These compounds are useful as surface modifiers for polymers in order to improve resistance to fog formation or water and oil repellency.
    Type: Application
    Filed: June 5, 2008
    Publication date: October 9, 2008
    Inventors: Piero Piccinelli, Manuele Vitali, Andrea Landuzzi, Giovanni Da Roit, Primo Carrozza, Markus Grob, Nicola Lelli
  • Permanent surface modifiers
    Patent number: 7408077
    Abstract: The invention relates to novel compounds of the formula I, II; III or IV wherein the general symbols are as defined in claim 1. These compounds are useful as surface modifiers for polymers in order to improve resistance to fog formation or water and oil repellency.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 5, 2008
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Piero Piccinelli, Manuele Vitali, Andrea Landuzzi, Giovanni Da Roit, Primo Carrozza, Markus Grob, Nicola Lelli
  • Alkylaminosiloxanes as corrosion inhibitors
    Publication number: 20050176596
    Abstract: The instant invention discloses a composition comprising a carrier, preferably a packaging material, and at least one compound of the formula (I) in which the general symbols are as defined in claim 1 as corrosion inhibor for protecting metallic surfaces.
    Type: Application
    Filed: May 22, 2003
    Publication date: August 11, 2005
    Inventors: Piero Piccinelli, Stefano Gardi, Giovanni Da Roit
  • Permanent surface modifiers
    Publication number: 20040162431
    Abstract: 1
    Type: Application
    Filed: April 2, 2004
    Publication date: August 19, 2004
    Inventors: Piero Piccinelli, Manuele Vitali, Andrea Landuzzi, Giovanni Da Roit, Primo Carrozza, Markus Grob, Nicola Lelli
  • Polysilane stabitizers containing sterically hindered amine groups
    Patent number: 6538055
    Abstract: A compound containing a silane backbone and a group of formula (A) wherein R is hydrogen, C1-C8alkyl, —O, —OH, —CH2CN, C1-C18alkoxy, C5-C12cycloalkoxy, C3-C6alkenyl, C7-C9phenylalkyl unsubstituted or substituted on the phenyl by 1, 2 or 3 C1-C4alkyl; or C1-C8acyl; is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: March 25, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Primo Carrozza, Valerio Borzatta, Giovanni Da Roit, Chryssostomos Chatgilialoglu
  • Siloxane derivatives of 2,2,6,6-tetramethylpiperidine compounds as stabilizers
    Patent number: 5463058
    Abstract: Novel polymethylpiperidine compounds of general formula (I) containing silane groups and effective as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.The meanings of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and n are defined in the text.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: October 31, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Primo Carrozza, Giovanni Da Roit
  • Process for preparing N,N'-bis(hydrocarbyloxycarbonyl)-N,N'-bis(2,2,6,6-tetramethyl-4-piperidy l)diamines
    Patent number: 5449779
    Abstract: A process for preparing a compound of the formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen, R.sub.2 is e.g. C.sub.2 -C.sub.12 alkylene and R.sub.3 is e.g. C.sub.1 -C.sub.18 alkyl;which process comprises reacting, in water, in the absence of an organic solvent, a compound of the formula (II)Cl--COOR.sub.3 (II)wherein R.sub.3 is as defined above with a compound of the formula (III) ##STR2## where R.sub.1 is e.g. as defined above and R.sub.2 ' is e.g. as defined above for R.sub.2, at a temperature of from 0.degree. to 60.degree. C., 1 to 1.5 mol of the compound of the formula (II) being used per mol --NH-- group in the compound of the formula (III); and neutralizing the hydrochloric acid formed with an inorganic base.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: September 12, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Primo Carrozza, Giovanni Da Roit, Valerio Borzatta