Patents by Inventor Rina Carlini

Rina Carlini 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: 7649026
    Abstract: Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, and a nanoscale pigment particle composition including an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: January 19, 2010
    Assignee: Xerox Corporation
    Inventors: C. Geoffrey Allen, Rina Carlini, Sandra J. Gardner
  • Publication number: 20100004360
    Abstract: Nanoscale particles of benzimidazolone pigments are made by providing one or more organic pigment precursor(s) to a benzimidazolone pigment, providing a solution or suspension of a sterically bulky stabilizer compound that associates non-covalently with a benzimidazolone moiety on one of the pigment precursors, wherein the sterically bulky stabilizer compound is selected from the group consisting of substituted pyridine derivatives, alkylated benzimidazolone compounds, alkylated derivatives of aromatic acids, and mixtures thereof, and carrying out a coupling reaction to form a benzimidazolone pigment composition, whereby one or more functional moieties on the benzimidazolone pigment is non-covalently associated with the sterically bulky stabilizer, so as to limit an extent of particle growth and aggregation and results in nanoscale pigment particles.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 7, 2010
    Applicants: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Rina CARLINI, Darren Andrew MAKEIFF
  • Patent number: 7632546
    Abstract: A radiation curable phase change ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one gellant comprised of a curable polyamide-epoxy acrylate component and a polyamide component, and at least one colorant. The use of the gellant enables the ink to form a gel state having a viscosity of at least 103 mPa·s at very low temperatures of about 25° C. to about 100° C. The ink may thus be jetted at very low jetting temperatures of, for example, about 40° C. to about 110° C. The ink may be used to form an image by heating the ink to a first temperature at which the ink may be jetted, jetting onto a member or substrate maintained at a second temperature at which the ink forms a gel state, and exposing the ink to radiation energy to polymerize curable components of the ink.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 15, 2009
    Assignee: Xerox Corporation
    Inventors: Peter G Odell, C Geoffrey Allen, Christopher A Wagner, Stephan V Drappel, Rina Carlini, Eniko Toma
  • Publication number: 20090297714
    Abstract: The present disclosure provides for the process for preparing a solid inkjet ink using a pigment flush. One process includes applying a first mixing step to a pigment and a flushing agent to flush the pigment from am aqueous phase to a non-aqueous phase to form a pigment dispersion, adding at least one other ink ingredient, and incorporating the other ink ingredient in the pigment dispersion by applying a second mixing step to form a solid inkjet ink. Another process disclosed includes adding at least one ink ingredient directly to a pigment dispersion and mixing by applying a high shear mixer.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 3, 2009
    Applicant: XEROX CORPORATION
    Inventors: Raymond W. WONG, Peter G. ODELL, C. Geoffrey ALLEN, Rina CARLINI
  • Publication number: 20090246674
    Abstract: Core-shell nanoscale pigment particles include a core organic pigment composition including nanoscale particles of organic pigments, and a shell layer of surface-deposited silica, where the organic pigment particles are selected from azo-type pigment particles, azo laked pigment particles, quinacridone pigment particles, phthalocyanine pigment particles, and mixtures thereof. The core-shell nanoscale pigment particles can also include an organic primer layer covering the core and located between the core and the shell layer. The core-shell nanoscale pigment particles can be made by preparing a core composition including nanoparticles of organic pigments, and encapsulating the core with shell layer of surface-deposited silica and an optional organic primer layer located between the core and the shell layer.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 1, 2009
    Applicant: Xerox Corporation
    Inventors: Rina CARLINI, Michelle N. CHRETIEN, Sandra J. GARDNER
  • Publication number: 20090227711
    Abstract: Encapsulated nanoscale particles of organic pigments include a polymer-based encapsulating material, and one or more nanoscale organic pigment particles encapsulated by the polymer-based encapsulating material.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 10, 2009
    Applicant: XEROX CORPORATION
    Inventors: Rina CARLINI, Roger E. GAYNOR, Paul F. SMITH
  • Publication number: 20090226835
    Abstract: Nano-sized phthalocyanine pigment particles include a phthalocyanine chromogen structure as the main component, and a substituted soluble metal-phthalocyanine dye as a minor component that is associated non-covalently with the phthalocyanine chromogen structure, wherein the presence of one or more sterically bulky substituents on the substituted soluble metal-phthalocyanine dye limits an extent of pigment particle growth and aggregation, to afford nano-sized pigment particles.
    Type: Application
    Filed: March 25, 2008
    Publication date: September 10, 2009
    Applicant: XEROX CORPORATION
    Inventors: James D. MAYO, Rina CARLINI, Adela GOREDEMA, Peter G. ODELL, Jeffrey H. BANNING
  • Publication number: 20090227785
    Abstract: Nanoscale pigment particles of phthalocyanine pigments are prepared by providing a unsubstituted phthalocyanine chromogen material and a substituted phthalocyanine chromogen material, reacting the unsubstituted phthalocyanine chromogen material and the substituted phthalocyanine chromogen material to form a mixture of unsubstituted phthalocyanine dye molecules and substituted phthalocyanine dye molecules, and causing the substituted phthalocyanine dye molecules to non-covalently associate with the unsubstituted phthalocyanine dye molecules, so as to limit an extent of particle growth and aggregation and result in nanoscale pigment particles.
    Type: Application
    Filed: July 22, 2008
    Publication date: September 10, 2009
    Applicant: XEROX CORPORATION
    Inventors: James D. MAYO, Rina CARLINI, C. Geoffrey ALLEN
  • Patent number: 7576235
    Abstract: Processes for preparing bis(urea-urethane) compounds wherein R1 is alkyl, aryl, arylalkyl, or alkylaryl, R2 is alkylene, arylene, arylalkylene, or alkylarylene, R3 is alkylene, arylene, arylalkylene, or alkylarylene, and R4 is hydrogen or alkyl, comprising: (1) first bring to a reaction temperature of about 20-125° C. a reaction mixture comprising monoalcohol reactant R1—OH and diisocyanate reactant OCN—R2—NCO, the monoalcohol being present in an amount of about 0.8-1.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: August 18, 2009
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, Adela Goredema, Eniko Toma, Christine E. Bedford
  • Patent number: 7563318
    Abstract: A process for preparing nanoscale azo pigment particles includes providing an organic pigment precursor that contains at least one functional moiety, providing a sterically bulky stabilizer compound that contains at least one functional group, and carrying out a chemical reaction to form a pigment composition in a microreactor or micromixer, whereby the functional moiety found on the pigment precursor is incorporated within the pigment and non-covalently associated with the functional group of the stabilizer, so as to allow the formation of nanoscale-sized pigment particles and the production of such in a microreactor under laminar or turbulent flow conditions without clogging.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: July 21, 2009
    Assignee: Xerox Corporation
    Inventors: Santiago Faucher, Rina Carlini, Emily L. Moore, Christine M. Thompson, Sandra J. Gardner, Paul J. Gerroir, C. Geoffrey Allen
  • Patent number: 7563489
    Abstract: A radiation curable phase change ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one curable epoxy-polyamide gellant, and at least one colorant. The use of the gellant enables the ink to form a gel state having a viscosity of at least 103 mPa·s at very low temperatures of about 25° C. to about 100° C. The ink may thus be jetted, for example onto an intermediate transfer member surface or directly to an image receiving substrate, at very low jetting temperatures of, for example, about 40° C. to about 110° C.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 21, 2009
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, Eniko Toma, Peter G Odell, Vaisnavi Siritharan
  • Publication number: 20090182152
    Abstract: Disclosed is a compound of the formula and dimers thereof, wherein R, R?, X, (Y)m, and (Z)n are as defined herein. The compounds are useful as colorants, particularly in applications such as phase change inks.
    Type: Application
    Filed: March 25, 2009
    Publication date: July 16, 2009
    Inventors: Jeffrey H. Banning, James D. Mayo, Rina Carlini
  • Patent number: 7560587
    Abstract: Disclosed is a bis(urea-urethane) compound of the formula wherein R1 and R1? each, independently of the other, is an alkyl group, wherein at least one of R1 and R1? has at least about 6 carbon atoms, R2 and R2? each, independently of the other, is an alkylene group, wherein at least one of R2 and R2? has at least about 3 carbon atoms, R3 is an alkylene group having at least about 2 carbon atoms, and R4 and R5 each, independently of the other, is a hydrogen atom or an alkyl group, and wherein R1 and R1? each contain no more than 2 fully fluorinated carbon atoms.
    Type: Grant
    Filed: December 4, 2004
    Date of Patent: July 14, 2009
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Rina Carlini, Christine E. Bedford, Marcel P. Breton, Eniko Toma
  • Patent number: 7541406
    Abstract: Disclosed is a phase change ink comprising a colorant, an initiator, and a phase change ink carrier, said carrier comprising (A) a urethane which is the reaction product of a mixture comprising (1) an isocyanate; and (2) an alcohol selected from the group consisting of 1,4 butanediol vinyl ether, 2-allyloxy ethanol, 1,4-cyclohexanedimethanol vinyl ether, ethylene glycol vinyl ether, di(ethylene glycol) vinyl ether, and mixtures thereof; (B) a compound which is the reaction product of a mixture comprising (1) an isocyanate; and (2) a component comprising (a) an amine having at least one ethylenic unsaturation; (b) an acid having at least one ethylenic unsaturation; (c) a mixture of an amine having at least one ethylenic unsaturation and an alcohol having at least one ethylenic unsaturation; (d) a mixture of an acid having at least one ethylenic unsaturation and an alcohol having at least one ethylenic unsaturation; or (e) mixtures thereof; or (C) a mixture of (A) and (B); said ink being curable upon exposure t
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: June 2, 2009
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Jennifer L. Belelie, Peter G. Odell, Rina Carlini, Jule W. Thomas, Jr., Donald R. Titterington, Paul F. Smith, Stephan V. Drappel, Chris A. Wagner
  • Patent number: 7504531
    Abstract: Processes for preparing diacryl-functional compounds are provided. Processes include reacting AB2 monomers with acryloyl halides, and then further reacting with long-chain, mono-functional aliphatic compounds to form long-chain diacrylates. Further processes include reacting difunctional tic compounds with acrylic acid to form difunctional diacrylate, and diacrylamide compounds.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 17, 2009
    Assignee: Xerox Corporation
    Inventors: Peter G. Odell, Rina Carlini, Lu Jiang
  • Patent number: 7503973
    Abstract: A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: March 17, 2009
    Assignee: Xerox Corporation
    Inventor: Rina Carlini
  • Patent number: 7501015
    Abstract: The phase change ink a viscosity of from about 4 mPa-s to about 50 mPa-s at a first temperature and has a viscosity of from 104 mPa-s to about 109 mPa-s at a second lower temperature. The second temperature may be below the first temperature by at least 10° C. but by no more than 50° C. The first temperature may be from about 60° C. to about 110° C. and the second temperature may be from about 20° C. to about 70° C. A curve of log10 viscosity of the phase change ink plotted against temperature in degrees Celsius may have a slope having an absolute value less than 0.02 at the first temperature and have a slope having an absolute value greater than 0.08 for at least a region second temperatures.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: March 10, 2009
    Assignee: Xerox Corporation
    Inventors: Peter Gordon Odell, Paul F. Smith, Jennifer Lynne Belelie, Eniko Toma, Stephan Drappel, C. Geoffrey Allen, Rina Carlini, Christopher A. Wagner
  • Patent number: 7473310
    Abstract: A nanoscale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the mono-azo laked pigment includes a nono-azo dye molecule laked with a divalent metal cation; the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles. Non-aqueous dispersion compositions, such as ink compositions, contain a polymeric dispersant, an organic liquid, and the nanoscale pigment particle composition.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 6, 2009
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, Jeffrey H. Banning, C. Geoffrey Allen, Sandra J. Gardner, Jonathan Siu-Chung Lee
  • Patent number: 7470320
    Abstract: A nanoscale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety on the pigment associates non-covalently with the functional group of the stabilizer; and the nanoscale pigment particles have an average particle size of from about 10 nm to about 500 nm and have tunable coloristic properties that depend on both particle composition and average particle size.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: December 30, 2008
    Assignee: Xerox Corporation
    Inventors: C. Geoffrey Allen, Rina Carlini, Sandra J. Gardner
  • Publication number: 20080308008
    Abstract: A nanoscale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.
    Type: Application
    Filed: November 1, 2007
    Publication date: December 18, 2008
    Applicant: XEROX CORPORATION
    Inventors: Rina CARLINI, Karl W. DAWSON, Sandra J. GARDNER, C. Geoffrey ALLEN