Hot, Melt Type, Or Wax Containing Patents (Class 106/31.61)
  • Publication number: 20040035321
    Abstract: Printing inks and paints comprising a polyolefin wax component prepared from one or more olefins by catalysis using a single-site catalyst based on a complex of a transition metal from groups 5 to 8 of the Periodic System of the Elements, which comprises not more than one cyclopentadienyl system per transition metal.
    Type: Application
    Filed: December 16, 2002
    Publication date: February 26, 2004
    Inventors: Shahram Mihan, Andreas Deckers
  • Publication number: 20040021754
    Abstract: The invention relates to a meltable ink which is solid at room temperature, which ink is suitable for use in an indirect printing process, in which printing process the ink is transferred, by the use of an inkjet printhead, to a transfer element, whereafter the ink is transferred to a receiving material under pressure from the transfer element, the ink having a composition such that it is pressure-transferable at a temperature between a bottom limit and a top limit, wherein the ink has a deformation energy of less than 20×105 Pa.s at a temperature equal to said top limit.
    Type: Application
    Filed: July 3, 2003
    Publication date: February 5, 2004
    Inventors: Martinus Antonius Kremers, Maurice Hendrikus Hubertinus Thijssen, Berby Marga Gerarda Weitenauer
  • Patent number: 6682587
    Abstract: A meltable ink composition used in a printing apparatus in which ink drops are ejected from ink ducts wherein the ink composition contains a compound with the following formula in which R1 and R′1 are the same or different and are selected from a C1-8 alkyl group or a C1-8 alkoxy group, R2 is a C1-12 linear alkane diyl group or a C5-12 alkane diyl group containing an alicyclic group, and n is 1, 2 or 3.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: January 27, 2004
    Assignee: Oce-Technologies B.V.
    Inventors: Danny Hendrik maria Hendricks, Marcus Petrus Leonardus Huinck, Frederik Leonardus Everardus Suilen
  • Publication number: 20040007155
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula 1
    Type: Application
    Filed: June 27, 2002
    Publication date: January 15, 2004
    Applicant: Xerox Corporation
    Inventors: Jeffrey H. Banning, Bo Wu, James D. Mayo, James M. Duff, Rina Carlini, Jule W. Thomas,, Paul F. Smith
  • Patent number: 6673139
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: January 6, 2004
    Assignee: Xerox Corporation
    Inventors: Bo Wu, Rina Carlini, James M. Duff, Jeffrey H. Banning, James D. Mayo
  • Patent number: 6663703
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: December 16, 2003
    Assignee: Xerox Corporation
    Inventors: Bo Wu, Rina Carlini, Jeffrey H. Banning, James M. Duff, James D. Mayo, Jule W. Thomas, Jr., Paul F. Smith, Michael B. Meinhardt
  • Patent number: 6652635
    Abstract: Disclosed is a phase change ink composition comprising (a) a phase change carrier, (b) a cyan colored resin or wax comprising the reaction product of (i) a cyan colorant having at least one functional group selected from (A) hydroxyl groups, (B) primary or secondary amino groups, (C) mercapto groups, or (D) mixtures thereof, and (ii) an isocyanate, and (c) an organic acid selected from (i) organic sulfonic acids, (ii) organic phosphinic acids, (iii) organic phosphonic acids, or (iv) mixtures thereof.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: November 25, 2003
    Assignee: Xerox Corporation
    Inventors: Srinivasa D. Rangaraj, Mark R. Parker, Jeffrey R. Kohne
  • Patent number: 6645282
    Abstract: A hot melt ink composition containing a an alkylene distearate which improves the color strength of the ink and is formed as a reaction product of a C4-C8 diol and at least one acid selected from the group consisting of a C16-C18 monofunctional acid and a C9-C10 difunctional acid.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: November 11, 2003
    Assignee: Sun Chemical Corporation
    Inventors: Edward Stone, Jitendra J. Modi, Robert J. Catena
  • Publication number: 20030172841
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula 1
    Type: Application
    Filed: February 8, 2002
    Publication date: September 18, 2003
    Applicant: Xerox Corporation
    Inventors: Donald R. Titterington, Michael B. Meinhardt, Jeffrey H. Banning, James D. Mayo, James M. Duff, Roger E. Gaynor, Harold R. Frame
  • Patent number: 6620228
    Abstract: Resins and waxes made by reacting selected nucleophiles, including alcohols and/or amines, with an isocyanate are disclosed. The order of addition of the isocyanate and the different nucleophiles can tailor the distribution of di-urethane, mixed urethane/urea, and/or di-urea molecules in the final resin product. The isocyanate-derived resin and wax materials are useful as ingredients as phase change ink carrier compositions used to make phase change ink jet inks.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: September 16, 2003
    Assignee: Xerox Corporation
    Inventors: Clifford R. King, Loc V. Bui, Jeffrey H. Banning, Donald R. Titterington
  • Patent number: 6607588
    Abstract: Novel addition products of hydroxyl-protecting groups (such as isocyanates) with oxyalkylene-substituted intermediates, such as poly(oxyalkylenated) aniline compounds, for the eventual production of substituted, and substantially pure, colorants, particularly diazo and triphenylmethane derivatives, through the reaction of such intermediates with certain reactants are provided. These new colorants exhibit improved wax and/or oil solubility and high purity, particularly due to the inability of certain impurities to deleteriously react with the protected hydroxyl groups of either the intermediate or the colorant during and/or after formation thereof. A method for producing such novel colorants through utilization of these novel substantially pure colorant intermediates is also provided.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: August 19, 2003
    Assignee: Milliken & Co.
    Inventor: Rajnish Batlaw
  • Publication number: 20030127021
    Abstract: This invention features a hot melt ink composition. The composition includes a vehicle; a pigment having a modifying group on a surface of the pigment; and a polymeric dispersant including a group which associates with the modified surface and a backbone which is miscible with the vehicle.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 10, 2003
    Inventor: Benjamin J. Brown
  • Patent number: 6585816
    Abstract: Disclosed is a phase change ink composition comprising a colorant and an ink vehicle, said ink being a solid at temperatures less than about 50° C., wherein the ink vehicle comprises a borate ester.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: July 1, 2003
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, Suresh K. Ahuja
  • Publication number: 20030079645
    Abstract: Disclosed is a phase change ink composition comprising (a) a phase change carrier, (b) a cyan colored resin or wax comprising the reaction product of (i) a cyan colorant having at least one functional group selected from (A) hydroxyl groups, (B) primary or secondary amino groups, (C) mercapto groups, or (D) mixtures thereof, and (ii) an isocyanate, and (c) an organic acid selected from (i) organic sulfonic acids, (ii) organic phosphinic acids, (iii) organic phosphonic acids, or (iv) mixtures thereof.
    Type: Application
    Filed: April 10, 2002
    Publication date: May 1, 2003
    Applicant: Xerox Corporation
    Inventors: Srinivasa D. Rangaraj, Mark R. Parker, Jeffrey R. Kohne
  • Publication number: 20030079644
    Abstract: Disclosed is an aqueous ink composition comprising an aqueous liquid vehicle, a colorant, and an additive wherein, when the ink has been applied to a recording substrate in an image pattern and a substantial amount of the aqueous liquid vehicle has either evaporated from the ink image, hydrogen bonds of sufficient strength exist between the additive molecules so that the additive forms hydrogen-bonded oligomers or polymers.
    Type: Application
    Filed: September 7, 2001
    Publication date: May 1, 2003
    Applicant: Xerox Corporation
    Inventors: Thomas W. Smith, David J. Luca, Kathleen M. McGrane
  • Publication number: 20030061964
    Abstract: Novel addition products of hydroxyl-protecting groups (such as isocyanates) with oxyalkylene-substituted intermediates, such as poly(oxyalkylenated) aniline compounds, for the eventual production of substituted, and substantially pure, colorants, particularly diazo and triphenylmethane derivatives, through the reaction of such intermediates with certain reactants are provided. These new colorants exhibit improved wax and/or oil solubility and high purity, particularly due to the inability of certain impurities to deleteriously react with the protected hydroxyl groups of either the intermediate or the colorant during and/or after formation thereof. A method for producing such novel colorants through utilization of these novel substantially pure colorant intermediates is also provided.
    Type: Application
    Filed: September 6, 2001
    Publication date: April 3, 2003
    Inventor: Rajnish Batlaw
  • Publication number: 20030027006
    Abstract: Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
    Type: Application
    Filed: September 25, 2002
    Publication date: February 6, 2003
    Inventors: Rajnish Batlaw, Patrick D. Moore
  • Publication number: 20030019394
    Abstract: Provision of a hot melt ink composition for ink-jet printing, which is capable of representing the intrinsic color of its coloring component and is stable at high temperature, allowing excellent reproducibility of the color of the images resultantly recorded on recording medium. A hot melt ink composition for ink-jet printing, which is composed of coloring matter, saturated hydrocarbon wax (solid at room temperature) and resin, said wax giving a color value of 1.0 or less as defined by ASTM D 1500 and said resin giving a YI value of −5 to 5 as defined by JIS K 7103. The hot melt ink composition of the present invention, when ink-jet printed onto recording medium, allows its coloring matter's intrinsic color to be accurately represented on the recording medium with rich color rendition.
    Type: Application
    Filed: July 10, 2002
    Publication date: January 30, 2003
    Inventor: Yoshikatsu Itoh
  • Patent number: 6503309
    Abstract: Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: January 7, 2003
    Assignee: Milliken & Company
    Inventors: Rajnish Batlaw, Patrick D. Moore
  • Patent number: 6471758
    Abstract: An ink composition for a meltable ink usable in a printing device in which ink drops are ejected from ink ducts, which comprises agents which reversibly cross-link the ink, the said agents containing a gelling agent. When an ink drop which has been transferred to a substrate passes over into a gel during the cooling process, the consequence is that the viscosity of the melted ink drop increases greatly so that the drops become relatively immobile. In this way the ink drops are prevented from uncontrollably flowing into the paper. As a result, inks of this kind are suitable for use on both porous and smooth substrates. In addition, these inks have been found suitable for use in a printing device in which printed substrates are subjected to thermal after-treatment.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: October 29, 2002
    Assignee: Oce Technologies B.V.
    Inventors: Erik Kelderman, Marcus Petrus Leonardus Huinck, Nicolina Margriet Kortenhoeven, Frederik Leonardus Everardus Marie Suilen, Guido Gerardus Willems, Albin Bernhard Werner Haas
  • Patent number: 6464766
    Abstract: The invention includes colorless compounds having a central core and at least two arms extending from the core. The core can comprise one or more atoms. The at least two arms have the formula In such formula, Z is a segment of one or more atoms; j is an integer from 1 to about 300 and can be different at one of the at least two arms than at another of the at least two arms; Q is an alkyl or aryl group and can vary amongst different alkyl and aryl groups within the colorless compound; and n is an integer greater than 1 and can be different at one of the at least two arms than at another of the at least two arms. In other aspects, the invention encompasses phase change inks incorporating the above-described colorless compound as toughening agent, and methods of printing with such phase change inks.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: October 15, 2002
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Donald R. Titterington, Wolfgang G. Wedler
  • Publication number: 20020144627
    Abstract: An ink suitable for application to a heat resistant substrate and firing to fuse the ink to the substrate, the ink being in a form for ink jet printing and comprises; a carrier material; a pigment; a fusible vitreous agent comprising particles of less than 10 microns in size, and the carrier having a melting point for phase change of the ink. The pigment comprises ceramic pigment particles of less than 10 microns in size and the pigment and fusible vitreous agent are combined in the form of ceramic pigment particles. Dispersant is chemisorbed to these particles.
    Type: Application
    Filed: January 15, 2002
    Publication date: October 10, 2002
    Inventors: Joseph Doyle, Patrick Meagher, Patrick Joseph Ryan, Francois Colrat, Annaik Genson, Stuart Hampshire, Caroline O'Sullivan
  • Patent number: 6461417
    Abstract: An ink composition comprised of (1) an ink vehicle of (a) alkyl alkyl ketones of the formula CH3(CH2)m CO (CH2)n CH3 where m and n represent the number of segments and wherein alkyl contains from about 1 to about 25 carbons, (b) alkyl aryl ketones where each alkyl contains from about 1 to about 20 carbons, and the aryl is anthracene, naphthalene or phenyl, (c) arylaryl ketones where each aryl is benzyl, phenyl or naphthyl, (2) an ink viscosity component, (3) a conductive compound, (4) an antioxidant compound, (5) a lightfastness component, and (6) a colorant.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: October 8, 2002
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Raymond W. Wong, Marcel P. Breton
  • Publication number: 20020124771
    Abstract: A meltable ink composition used in a printing apparatus in which ink drops are ejected from ink ducts wherein the ink composition contains a compound with the following formula 1
    Type: Application
    Filed: January 8, 2002
    Publication date: September 12, 2002
    Inventors: Danny Hendrik Maria Hendricks, Marcus Petrus Leonardus Huinck, Frederik Leonardus Everardus Suilen
  • Patent number: 6444018
    Abstract: A phase change ink carrier composition comprising at least one anhydride/amino alcohol based adduct which is a reaction product of at least one anhydride and at least one amino alcohol, wherein the reaction product is an ester material or an amide material, but not an ester-amide material.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: September 3, 2002
    Assignee: Xerox Corporation
    Inventors: Clifford R. King, Jeffery H. Banning, Donald R. Titterington
  • Publication number: 20020088371
    Abstract: Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
    Type: Application
    Filed: January 10, 2001
    Publication date: July 11, 2002
    Inventors: Rajnish Batlaw, Patrick D. Moore
  • Patent number: 6406531
    Abstract: Phase change compositions that are solid at ambient temperature and liquid at an elevated temperature above ambient temperature are disclosed for advantageous use in selective deposition modeling methods for building three-dimensional objects. A phase change composition according to the disclosed invention is a semi-crystalline component mixture having a freezing point of at least about 68° C., a melting point of at least about 88° C. and a viscosity of about 13 centipoise at 135° C. The composition includes a plurality of waxes having a broad melting point range and molecular weight range. Three-dimensional objects having minimal curl, delamination and stress cracks can be produced at a faster rate than heretofore known by using selective deposition modeling techniques employing the disclosed compositions.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: June 18, 2002
    Assignee: 3D Systems, Inc.
    Inventors: Loc V. Bui, Vu Doan, Kelly Kwo
  • Patent number: 6398857
    Abstract: Disclosed is an ink composition comprising (a) an ink vehicle comprising a benzoic acid compound substituted with an alkyl group, an alkoxy group, an arylalkyl group, an alkylaryl group, an arylalkyloxy group, or an alkyloxyaryl group; (b) a viscosity modifier; (c) a colorant; (d) an optional conductivity enhancing agent; (e) an optional antioxidant; and (f) an optional UV absorber.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 4, 2002
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Raymond W. Wong, Marcel P. Breton
  • Patent number: 6395077
    Abstract: Disclosed is an ink composition comprising (a) a benzoyl benzoic acid compound; (b) a colorant; (c) an optional viscosity modifier, (d) an optional conductivity enhancing agent, and (e) an optional second acid.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: May 28, 2002
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 6379444
    Abstract: An organic solvent-based piezo ink is disclosed having (a) a particulate material; (b) a binder; (c) a plasticizer; (d) an organic solvent; (e) a fluorochemical surfactant; and (f) an antifoaming agent including an oil. Preferably, the particulate material is provided by an antifoaming silicone oil. Optionally, light and heat stabilizers are also included. Methods of making and using this ink are also disclosed.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: April 30, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Ronald R. Adkins, Robert W. Vorwerk, Ronald K. Thery
  • Publication number: 20020043178
    Abstract: The present invention provides a method for reducing dust deposits on polyolefin films. Further subjects of the invention are the use of a polyetheresteramide for reducing dust deposits on polyolefin films and coextruded multilayer polyolefin films containing a polyetheresteramide at least in one outer layer.
    Type: Application
    Filed: August 27, 2001
    Publication date: April 18, 2002
    Inventors: Nicola Lelli, Nadi Ergenc
  • Patent number: 6372030
    Abstract: Disclosed is an ink composition comprising (a) an ink vehicle selected from 4-(hexadecylamino)benzylamine, N-octanoyl-N-methyl glucamine, octanoic hydrazide, 4-hexadecyl sulfonyl aniline, or mixtures thereof, (b) a conductive complex of (i) an amine compound with (ii) a phosphorus-containing acid or acid salt or a sulfur-containing acid or acid salt, (c) a colorant, (d) an optional amine compound viscosity modifier, (e) an optional antioxidant, and (f) an optional UV absorber.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: April 16, 2002
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Raymond W. Wong, Marcel P. Breton
  • Patent number: 6350305
    Abstract: A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the chromophore further being derived from at least one aromatic aldehyde having a para-nitrogen and containing electron donating groups selected from the group consisting of alkyls, cycloalkyls, and oligomers or polymers derived from alkyleneoxy or aryleneoxy moieties. The colorant can be utilized in resins, waxes and inks.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: February 26, 2002
    Assignee: Xerox Corporation
    Inventors: Clifford R. King, Jeffery H. Banning
  • Publication number: 20020016480
    Abstract: Solid inks and toners contain at least one colorant that includes at least one substituted-9,10-anthraquinone compound, substituted with at least one monofunctional amine. The colorant can be formed very efficiently, and the product can be used in desirable image formation methods.
    Type: Application
    Filed: August 24, 2001
    Publication date: February 7, 2002
    Applicant: Xerox Corporation
    Inventors: Donald R. Titterington, Jeffery H. Banning
  • Patent number: 6336963
    Abstract: Disclosed is an ink composition comprising (a) an ink vehicle comprising a first nitrile compound having a first viscosity at a melt temperature, said melt temperature being at least about 60° C. and said melt temperature being no more than about 150° C., (b) a viscosity modifier comprising a second nitrile compound having a second viscosity at the melt temperature, said second viscosity being lower than said first viscosity, (c) a colorant, (d) an optional polymer comprising a polyester extended with a diisocyanato alkane, (e) an optional conductivity enhancing agent, (f) an optional antioxidant, and (g) an optional UV absorber.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: January 8, 2002
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Raymond W. Wong, Marcel P. Breton
  • Patent number: 6334890
    Abstract: An ink composition containing (1) an oxazoline compound with, for example, a melting point of from about above 60° C. to about 120° C. and with, for example, an acoustic-loss value of from about 25 to about 80 dB/mm; (2) a carbamate; (3) an alcohol compound; (4) a lightfastness component; (5) a lightfastness antioxidant; and (6) a colorant.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: January 1, 2002
    Assignee: Xerox Corporation
    Inventors: H. Bruce Goodbrand, Danielle C. Boils, Pudupadi R. Sundararajan, Raymond W. Wong, Marcel P. Breton, Shadi L. Malhotra, Carl P. Tripp
  • Patent number: 6328793
    Abstract: Disclosed is an ink composition comprising (a) a benzoyl benzamide compound; (b) a viscosity-modifying benzoyl-group-containing compound; (c) a colorant; and (d) an optional conductivity enhancing agent.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: December 11, 2001
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, H. Bruce Goodbrand
  • Patent number: 6319310
    Abstract: Disclosed is a phase change ink comprising (a) a carbamate or thiourea, said carbamate or thiourea having a melting point of no higher than about 120° C. and an acoustic loss value of no more than about 100 decibels per millimeter, (b) a colorant, (c) a branched hydrocarbon with a number average molecular weight of no more than about 10,000 and a melting point or softening point of no more than about 120° C., (d) an optional plasticizer, (e) an optional alcohol having a melting point of less than about 90° C. and an acoustic loss value of no more than about 100 decibels per millimeter, (f) an optional lightfastness-imparting agent, and (g) an optional antioxidant.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: November 20, 2001
    Assignee: Xerox Corporation
    Inventors: Raymond W. Wong, Marcel P. Breton, Shadi L. Malhotra
  • Patent number: 6309453
    Abstract: The invention includes colorless compounds having a central core and at least two arms extending from the core. The core can comprise one or more atoms. The at least two arms have the formula In such formula, Z is a segment of one or more atoms; j is an integer from 1 to about 300 and can be different at one of the at least two arms than at another of the at least two arms; Q is an alkyl or aryl group and can vary amongst different alkyl and aryl groups within the colorless compound; and n is an integer greater than 1 and can be different at one of the at least two arms than at another of the at least two arms. In other aspects, the invention encompasses phase change inks incorporating the above-described colorless compound as toughening agent, and methods of printing with such phase change inks.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: October 30, 2001
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Donald R. Titterington, Wolfgang G. Wedler
  • Patent number: 6306203
    Abstract: Disclosed is a phase change ink composition comprising (a) a nonpolymeric ester compound ink vehicle having a melting point of at least about 60° C.; (b) a conductivity enhancing agent; (c) a colorant; (d) an optional antioxidant, and (e) an optional UV absorber.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: October 23, 2001
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Raymond W. Wong, Marcel P. Breton
  • Patent number: 6287373
    Abstract: An ink composition containing, for example, (1) an oxazoline compound; (2) a thiourea compound; (3) an oxime compound; (4) a lightfastness compound; (5) an antioxidant; and (6) a colorant.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: September 11, 2001
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Raymond W. Wong, Marcel P. Breton
  • Patent number: 6280510
    Abstract: An ink composition for a meltable ink usable in a printing apparatus in which ink droplets are ejected from ink ducts, the ink composition containing an amorphously solidifying monomer compound, which compound shows a crystallinity of less than 1% when a melt of the compound is cooled at a rate of 5° C./min to past its solidification path and is then heated at a rate of 20° C./min to above its melting temperature. The monomer compound can be used in a binder for the ink composition. When inks of this kind are transferred to a receiving material, it results in greater stability in the printed layers, with respect to gum, scratch, fold resistance and transparency.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: August 28, 2001
    Assignee: Oce-Technologeis B.V.
    Inventors: Erik Kelderman, Roelof Hendrik Everhardus, Nicolina M. Kortenhoeven
  • Patent number: 6270561
    Abstract: Disclosed herein is a novel hot melt ink comprising a colorant ink and an ink vehicle wherein the ink vehicle comprises at least one polyhedral silsesquioxane compound present in a proportion of about 0.1 to 30 wt % based on the total weight of the hot melt ink composition.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: August 7, 2001
    Assignee: American Dye Source, Inc.
    Inventor: My T. Nguyen
  • Patent number: 6245139
    Abstract: A deposition material for an electrostatic deposition apparatus such as an ink for an electrostatic ink jet printer, the material comprising a carrier liquid having insulative properties, a charging agent which is soluble in the carrier liquid, and a charge augmenting additive which is soluble in the carrier liquid. The charge augmenting additives are carrier soluble materials that assist in the dissociation of the charging agent. Generally it is found that they are materials which contain nitrogen groups, e.g. amine functionality.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: June 12, 2001
    Assignee: Tonejet Corporation Pty LTD
    Inventor: Stephen Lansell Nicholls
  • Patent number: 6235098
    Abstract: A hot-melt ink composition comprising at least one composition of: (a) a cyan ink composition containing a cyan pigment as a colorant, wherein the cyan ink composition shows a maximum chroma C* on a recording medium of 45 or higher, a hue angle H0 at the maximum chroma of from 240° to 270° and a color difference &Dgr;E* of 3 or smaller as measured through 100-hour irradiation with xenon lamp light at a luminous energy of 0.35 W/m2 and a wavelength of 340 nm; (b) a yellow ink composition containing a yellow pigment as a colorant, wherein the yellow ink composition shows a maximum chroma C* on a recording medium of 70 or higher, a hue angle H0 at the maximum chroma of from 90° to 110° and a color difference &Dgr;E* of 5 or smaller as measured through 100-hour irradiation with xenon lamp light at a luminous energy of 0.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: May 22, 2001
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Tsutomu Maekawa, Akemi Ouchi, Atsushi Kakuta
  • Patent number: 6235094
    Abstract: The invention encompasses a compound having the formula: wherein R1, Z and the carbonyl can be comprised by a common ring, wherein R1 comprises a chromophore that absorbs light from the visible wavelength range, and wherein n is an integer that is at least 12. The invention also encompasses a solid phase change ink composition. Such composition includes a phase change ink carrier and a colorant. The colorant comprises a chromophore that absorbs light from the visible wavelength range, and has the formula: wherein R1, Z and the carbonyl can be comprised by a common ring, wherein n is an integer that is at least 12. Additionally, the invention encompasses a method of forming a colorant.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: May 22, 2001
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Michael B. Meinhardt, Donald R. Titterington, Clifford R. King
  • Patent number: 6225369
    Abstract: Disclosed is a UV-curable transfer ink which can be cured by UV and used to emboss a precise and clear pattern on a substrate. It comprises 20-40% by weight of a UV-reactive ink, 20-40% by weight of an acrylic copolymer, 4-6% by weight of an ethylene vinyl acetate copolymer, 25-35% by weight of an organic solvent and 0.5-5% by weight of a bulking agent. A printing sheet is also provided, on which the transfer ink is printed in a predetermined pattern. An embossed pattern is obtained by applying the sheet to a substrate, exposing it to UV to cure the printed transfer ink, releasing the printing sheet to leave the cured transfer ink on the substrate, and etching the substrate.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: May 1, 2001
    Assignee: Moltex Co., Ltd.
    Inventor: Sang Bum Jeon
  • Patent number: 6224661
    Abstract: A semi-solid ink composition for marking porous media is described. The ink composition can provide large dot size, low smear, fast drying, and sharp edge definition images when printed on a porous medium, such as a corrugated container. The semi-solid ink composition has the combined properties of both liquid and solid inks.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: May 1, 2001
    Assignee: Hitachi Koki Imaging Solutions, Inc.
    Inventors: Inna Tregub, Augusta Jolly
  • Patent number: 6221137
    Abstract: Phase change inks containing at least one colorant that comprises at least one metal phthalocyanine tetraamide chromogen, at least one metal phthalocyanine tetraester chromogen, or mixtures thereof.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: April 24, 2001
    Assignee: Xerox Corporation
    Inventors: Clifford R. King, Donald R. Titterington, Jeffrey H. Banning
  • Patent number: 6210471
    Abstract: A marking composition suitable for marking colored substrates, especially dark substrates, is disclosed. The marking composition comprises a wax, a fatty acid, a reflecting filler, and a colorant selected from an oil soluble dye, an oil dispersable dye, or an oil dispersable pigment. A defoamer and a non-reflecting filler can be optionally included in the marking composition. For example, the marking composition can be provided in the form of crayons, colored pencils, and the like. A method of providing a mark on a colored substrate is also disclosed.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: April 3, 2001
    Assignee: Binney & Smith Inc.
    Inventor: Michael S. Craig