Hydrocarbon Compound Containing Patents (Class 106/31.88)
  • Patent number: 10745560
    Abstract: Moisture curing alkoxysilyl-functional polymer compositions containing a high phenyl-content silicone resin and carbon black exhibit high adhesion to substrates, high tensile strength, very high elongation, and high tear strength without becoming unduly hard.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: August 18, 2020
    Assignee: WACKER CHEMIE AG
    Inventors: Volker Stanjek, Lars Zander
  • Patent number: 10238589
    Abstract: Provided are a silicon oxide-coated zinc oxide, a method for producing the same, a composition and a cosmetic including a silicon oxide-coated zinc oxide. The silicon oxide-coated zinc oxide is a silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coat, in which an average particle diameter of the zinc oxide particles is in a range of more than 50 nm and 500 nm or less, and, when an abundance ratio of silicon in the silicon oxide coat in a Q3 environment is indicated by Q3, and an abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5 are satisfied.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: March 26, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tetsuro Itagaki, Gaku Fujihashi, Syunsuke Suma
  • Publication number: 20140016179
    Abstract: A compound is disclosed. The compound has a general structure: wherein R1, R2, and R3 are each independently selected from the group consisting of hydrogen, substituted saturated hydrocarbons, non-substituted saturated hydrocarbons, substituted unsaturated hydrocarbons, and non-substituted unsaturated hydrocarbons; wherein E and D are each independently selected from the group consisting of CH2, O, S, and NH; and wherein a, b, x, y, and z are each independently any whole number between 0 and 45, inclusive, wherein the sum of a and b is less than 45 or equal to 45 and wherein the sum of x, y, and z is less than 45 or equal to 45.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 16, 2014
    Inventors: Zhang-Lin Zhou, Qin Liu
  • Publication number: 20130220171
    Abstract: [Problem to be solved] A non-aqueous pigment ink is disclosed, which can eliminate or reduce striking through while ensuring pigment dispersion stability and ejection stability, and achieve high print density. Also, a non-aqueous inkjet ink is disclosed, which can reduce the time required for warming up the ink while ensuring the pigment dispersion stability and the ejection stability. [Solution] As the first aspect, the non-aqueous pigment ink contains at least a non-aqueous solvent and a pigment that is self-dispersed in the solvent, wherein the self-dispersed pigment is treated with a compound represented by R1—X or R2—Y—R3, where X is any of —SH, —NCO, —NH2 and —NHR (where R is an alkyl group), Y is any of —CO—O—O—CO— and —CO—O—O—, R1, R2 and R3 are alkyl groups with a carbon number of 8-22, the alkyl groups may be linear or branched, and R2 and R3 may be the same with or different from each other.
    Type: Application
    Filed: October 17, 2011
    Publication date: August 29, 2013
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Tetsuo Hosoya, Akiko Yamamoto, Asayo Nishimura
  • Publication number: 20130088553
    Abstract: The present disclosure is directed to a pigment preparation comprising aluminum effect pigments, a solvent and at least one additive, wherein the aluminium effect pigments have a d98 value of the volume averaged particle size distribution curve of less than 15 ?m, the at least one additive is a phosphorous containing additive, and the solvent has a viscosity equal to or more than 1.8 mPa's at 25° C. The disclosure is further directed to an ink jet printing ink as well the use thereof.
    Type: Application
    Filed: November 21, 2012
    Publication date: April 11, 2013
    Applicant: ECKART GMBH
    Inventor: ECKART GMBH
  • Patent number: 8389601
    Abstract: The invention is to provide a metal ink composition for ink-jet and more particularly, a metal ink composition which causes no formation of cracks on a PCB substrate, allows a low curing temperature, and provides improved adhesive strength even after coating.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: March 5, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae-Hoon Kim, Dong-Hoon Kim, Byung-Ho Jun, Joon-Rak Choi, Young-Kwan Seo, Young-Il Lee
  • Publication number: 20120176440
    Abstract: An oily ink, wherein the oily ink comprises a pigment, a pigment dispersant, and an organic solvent, said oily ink comprising: 0.1 to 10% by mass, relative to a mass of the oily ink, of a nonionic surfactant having a HLB of from 6 to 16, wherein the nonionic surfactant having a HLB of from 6 to 16 is at least one selected from the group consisting of fatty acid esters, ethers of fatty acid esters, and polyoxyalkylene ethers.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 12, 2012
    Applicant: RISO KAGAKU COPORATION
    Inventors: Yoshifumi WATANABE, Kazuyuki ANDO
  • Publication number: 20120105938
    Abstract: A pigment-based ink includes a non-polar carrier fluid and pigment particles suspended in the non-polar carrier fluid. The pigment particles have surface functionalized anionic groups. A combination of an electronic display and an electronic ink is provided, as is a method for modifying the pigment particles.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Inventors: Qin Liu, Zhang-Lin Zhou
  • Publication number: 20120081778
    Abstract: A pigment-based ink comprises: a non-polar carrier fluid; and pigment particles suspended in the non-polar carrier fluid. The pigment particles are coated with a metal oxide that is modified with at least one silane coupling agent to introduce functional groups, steric stabilizers or both. A combination of an electronic display and an electronic ink is provided, as is a method for modifying the pigment particles.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 5, 2012
    Inventors: Qin Liu, Zhang-Lin Zhou, Tim R. Koch
  • Patent number: 8025723
    Abstract: An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is an alkylated-benzimidazolone compound, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: September 27, 2011
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, C. Geoffrey Allen
  • Patent number: 7857901
    Abstract: An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is a substituted pyridine derivative, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: December 28, 2010
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, C. Geoffrey Allen
  • Patent number: 7803221
    Abstract: The present invention concerns ink for printing on ceramic surfaces such as glass, which contains glass frits for silica nanoparticles and optionally a pigment, and is suitable for ink jet printing.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: September 28, 2010
    Assignees: DIP Tech LTd.., Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Shlomo Magdassi, Gera Eron, Yelena Vinetsky
  • Patent number: 7780775
    Abstract: The invention pertains to a novel, simpler dry-milling method for comminuting crude pigments (especially crude phthalocyanines) for use in offset inks, wherein a high amount of resin is used, at least part of which is a low molecular phenol-modified rosin, an esterified rosin or a hydrocarbon resin of similar properties, preferably together with an antioxidant, and dry-milling is performed at relatively low temperature. The invention also pertains to the thus obtained, new compositions, which are extraordinarily easily dispersible in hydrocarbon solvents, and their use for the preparation of inks or ink concentrates. Pigment dispersions obtained from the preferred compositions are also claimed.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 24, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Thomas Healy, David Cameron
  • Patent number: 7645332
    Abstract: A non-aqueous ink composition for inkjet which comprises a pigment, a dispersant, and a non-aqueous solvent is disclosed. The non-aqueous solvent comprises 50 to 90% by weight of a first liquid paraffin, and the balance of a second liquid paraffin, which is characterized in that an average number of carbon atom in the first liquid paraffin is 28 and an average number of carbon atom in the second liquid paraffin ranges from 23 to 27.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: January 12, 2010
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Masashi Hiroki, Takaya Kitawaki, Hiroshi Kiyomoto
  • Patent number: 7559985
    Abstract: The invention relates to an ink providing an optical effect, when it is applied on a main surface of a smart card. Said ink comprising a mixture of a base solution and a metallic pigment, said mixture containing between 2 and 4% per weight of the metallic pigment. The ink allows to obtain smart card having an improved appearance, and particularly smart cards having a printed surface with optical effect.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: July 14, 2009
    Assignee: Axalto SA
    Inventors: Aurélie Janot, Jocelyne Chesneau, Hélène LeJeune
  • Publication number: 20080000385
    Abstract: Disclosed is an ink jet ink composition having reduced ink buildup on the printer nozzle plate. The ink jet ink composition comprises a non-conductive solvent, one or more binder resins that are soluble in the non-conductive solvent, and a colorant soluble in the non-conductive solvent. Also disclosed is a method of printing on statically charged substrates. The ink jet ink composition provides one or more advantages: reduced ink buildup on the printer nozzle, reduced down time or cleaning time, and improved print quality.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Applicant: VIDEOJET TECHNOLOGIES INC.
    Inventors: Patrick J. Moss, Ayesha Syed, Terrence A. Renner
  • Patent number: 7291209
    Abstract: The present invention relates to inks for silk-screen printing technique, as well as the corresponding printing technique, designed to bestow upon the reproduction obtained by means of the use of said inks on an appropriate substrate, preferably of a paper type, a particular feel, preferably a particular roughness or coarseness. In particular, the present invention relates to an ink for silk-screen printing of catalogues or advertising leaflets for products designed for decorative wall coatings that will reproduce also the feel of the final decoration applied on the wall substrate.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: November 6, 2007
    Assignee: Candis S.R.L.
    Inventor: Alberto Gilli
  • Patent number: 7125442
    Abstract: A lightfast additive and an ink composition including the same include a benzophenone moiety for lightfastness and a moiety for wettability and the ability to stabilize a colorant, wherein the two moieties are covalently bonded. The lightfast additive may exhibit effective ultraviolet (UV) light absorption capacity, effective wettability, and an ability to stabilize a colorant. The ink composition utilizing the light fast additive thus has an improved lightfastness and long-term storage stability.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: October 24, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-hoon Lee, Seung-min Ryu, Yeon-kyoung Jung
  • Patent number: 7060125
    Abstract: To provide a non-aqueous ink composition which is small in generation of strike through or smear marks and free from the problem of clogging of the nozzle. A non-aqueous ink composition includes solvent, dispersant and coloring material of pigment or dye. The solvent contains therein at least not smaller than 10% by weight non-polar organic solvent which is not higher than 260° C. in 50% running point and at least not smaller than 20% by weight polar organic solvent which is not lower than 300° C. in 50% running point.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: June 13, 2006
    Assignee: Riso Kagaku Corporation
    Inventors: Teruaki Ohkawa, Hiroyuki Ogawa, Osamu Matsumoto, Toshihiro Endo, Yasuo Yamamoto
  • Patent number: 7056869
    Abstract: Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235° C. to 400° C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic content below 2% and an aniline point below 100° C. The fluids are particularly useful solvents for printing inks, drilling fluids, metal working fluids and as silicone extenders.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: June 6, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Pierre-Yves Guyomar, Olaf Peter Rudolf Keipert, Robert A. Verbelen, Gerd Merhof, Els H. Slachmuijlders, André A. Theyskens
  • Patent number: 6849109
    Abstract: Ink compositions with modified properties result from using a powder size below 100 nanometers. Colored inks are illustrated. Nanoscale coated, uncoated, whisker inorganic fillers are included. The pigment nanopowders taught comprise one or more elements from the group actinium, aluminum, antimony, arsenic, barium, beryllium, bismuth, cadmuim, calcium, cerium, cesium, chalcogenide, cobalt, copper, dysprosium, erbium, europium, gadolinium, gallium, gold, hafnium, hydrogen, indium, iridium, iron, lanthanum, lithium, magnesium, manganese, mendelevium, mercury, molybdenum, neodymium, neptunium, nickel, niobium, nitrogen, oxygen, osmium, palladium, platinum, potassium, praseodymium, promethium, protactinium, rhenium, rubidium, scandium, silver, sodium, strontium, tantalum, terbium, thallium, thorium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: February 1, 2005
    Assignee: NanoProducts Corporation
    Inventors: Tapesh Yadav, John Alexander
  • Publication number: 20040182278
    Abstract: The disclosure is generally related to a multi-color writing ink and, more particularly, to a multi-color writing instrument comprising a mixture of a first ink composition and a second ink composition, wherein the first and second ink compositions are immiscible with each other.
    Type: Application
    Filed: February 4, 2004
    Publication date: September 23, 2004
    Inventors: Wing Sum Vincent Kwan, Philip W. Ambler
  • Patent number: 6793727
    Abstract: A pigment composition which shows excellent flowability and stability with time, when used for an ink, and whose printed matter shows an excellent gloss, clearness, color strength and migrationfastness, and an ink composition, which pigment composition is formed of a phthalocyanine type pigment and a compound of the formula (1), P-[SO3−.Fen+/n]m  (1)  (wherein P is a metal-free or metal phthalocyanine residue which may be substituted with a chlorine atom, a bromine atom or both of them, n is 2 or 3 and m is a number of 1 to 4).
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 21, 2004
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventors: Akimitsu Mochizuki, Shigeki Kato
  • Publication number: 20040069184
    Abstract: A marking composition is disclosed for placing a temporarily visible mark on a surface. The composition includes a paint base and a pigmented colorant. The pigmented colorant is dispersed within the paint base, and has characteristics that cause the mark to progressively become substantially invisible upon exposure to UV light. Additives, such as UV absorbers and anti-oxidants may be included to alter the rate at which the mark becomes invisible. The pigmented colorant may be a dispersion of dyed melamine-toluenesulfonamide-formaldehyde polymer in a mixture of alkyl based resins and aliphatic hydrocarbons. The colorant may be about 2 to 30 parts by weight of the composition. In one embodiment, the pigmented colorant is a Special Fugitive Colorant, with a color selected from the group consisting of: Special Fugitive Yellow Dispersion, No. 121M6669; Special Fugitive Orange Dispersion, No. 121M6665; Special Fugitive Red Dispersion, No. 121M6850; Special Fugitive Red Dispersion; No.
    Type: Application
    Filed: September 17, 2003
    Publication date: April 15, 2004
    Inventors: Neil S. Fox, Christopher P. Finke
  • Patent number: 6652638
    Abstract: A marking composition for placing a temporarily visible mark on a surface. The composition includes a paint base and a pigmented colorant. The pigmented colorant is dispersed within the paint base, and has characteristics that cause the mark to progressively become substantially invisible upon exposure to UV light. Additives, such as UV absorbers and anti-oxidants may be included to alter the rate at which the mark becomes invisible. The pigmented colorant may be a dispersion of dyed melamine-toluenesulfonamide-formaldehyde polymer in a mixture of alkyl based resins and aliphatic hydrocarbons. The colorant may be about 2 to 30 parts by weight of the composition.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: November 25, 2003
    Assignee: Aervoe Pacific Company, Inc.
    Inventors: Neil S. Fox, Christopher P. Finke
  • Publication number: 20030211949
    Abstract: Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235° C. to 400° C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic content below 2% and an aniline point below 100° C. The fluids are particularly useful solvents for printing inks, drilling fluids, metal working fluids and as silicone extenders.
    Type: Application
    Filed: March 6, 2003
    Publication date: November 13, 2003
    Inventors: Pierre-Yves Guyomar, Olaf Peter Rudolf Keipert, Robert A. Verbelen, Gerd Merhof, Els H. Slachmuijlders, Andre A. Theyskens
  • Publication number: 20030192453
    Abstract: A non-aqueous ink composition includes solvent, dispersant and coloring material. The solvent contains therein not smaller than 10% by weight non-polar organic solvent which is not higher than 280° C. in 50% running point and not smaller than 20% by weight polar organic solvent which is not lower than 300° C. in 50% running point.
    Type: Application
    Filed: April 16, 2003
    Publication date: October 16, 2003
    Applicant: Riso Kagaku Corporation
    Inventors: Teruaki Ohkawa, Hiroyuki Ogawa, Osamu Matsumoto, Toshihiro Endo, Yasuo Yamamoto
  • Publication number: 20030177946
    Abstract: An ink-jet recording oil-based ink which has satisfactory pigment dispersibility both at the beginning of storage and even during long-term storage and provides excellent spouting stability without being influenced by temperature changes in printing circumstances. The ink comprises a pigment; a dispersing agent comprising a reaction product of a polyamine compound and a self condensation product of 12-hydroxystearic acid; a saturated hydrocarbon solvent comprising a liquid paraffin as a main component; and a vegetable oil, the ink having a surface tension of 26 to 30 dyne/cm at 25° C. and a contact angle on a polytetrafluoroethylene plate of 40° to 50° at 25° C.
    Type: Application
    Filed: February 26, 2003
    Publication date: September 25, 2003
    Inventors: Tatsorou Tsuchiya, Masanori Kano
  • Patent number: 6544372
    Abstract: Multi-stranded silicone rubber fishing skirts printed with RTV adhesive inks and/or laminated with colored foils and the method of manufacture of the fishing skirts are disclosed herein. The RTV inks set in the presence of humidity. The foils and inks can be applied to a silicone rubber substrate in preferred patterns and in registry with other areas containing foil or ink. The adhesive ink preferably comprises a mixture of an RTV adhesive, oil based thinner and/or pigment. In various processes, the ink is silk-screen printed and air-dried. One or more foils can be bonded to the rubber with different techniques. The foil can be vulcanized to the rubber substrate, bonded to a wet ink, or bonded under pressure to exposed smooth surfaces. The surface texture can be defined during and after vulcanization at the mold and with a smoothing template or with printed ink.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: April 8, 2003
    Assignee: Skirts Plus Corporation
    Inventor: Donald J. Link
  • Patent number: 6527845
    Abstract: An oil-based ink for ink-jet recording comprising mainly an organic solvent, a pigment and a dispersing agent, said organic solvent comprising a saturated hydrocarbon solvent and a vegetable oil in a weight ratio of 100:(10 to 100), in order to provide an oil-based ink for ink-jet recording which possesses good spouting stability and storage stability without being influenced by temperature changes in printing circumstances, and causes little cockling.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: March 4, 2003
    Assignee: Sakata Inx Corp.
    Inventors: Tatsurou Tsuchiya, Masanori Kano
  • Publication number: 20020178970
    Abstract: A marking composition is disclosed for placing a temporarily visible mark on a surface. The composition includes a paint base and a pigmented colorant. The pigmented colorant is dispersed within the paint base, and has characteristics that cause the mark to progressively become substantially invisible upon exposure to UV light. Additives, such as UV absorbers and anti-oxidants may be included to alter the rate at which the mark becomes invisible. The pigmented colorant may be a dispersion of dyed melamine-toluenesulfonamide-formaldehyde polymer in a mixture of alkyl based resins and aliphatic hydrocarbons. The colorant may be about 2 to 30 parts by weight of the composition. In one embodiment, the pigmented colorant is a Special Fugitive Colorant, with a color selected from the group consisting of: Special Fugitive Yellow Dispersion, No. 121M6669; Special Fugitive Orange Dispersion, No. 121M6665; Special Fugitive Red Dispersion, No. 121M6850; Special Fugitive Red Dispersion; No.
    Type: Application
    Filed: June 1, 2001
    Publication date: December 5, 2002
    Inventors: Neil S. Fox, Christopher P. Finke
  • Patent number: 6402823
    Abstract: Individual inks and an ink set for use in generating intermediate colors via the combination of separate inks applied by an ink jet printer to the glazed surface of an article, such as glazed ceramic architectural tile for example, that is to be heated to a temperature of greater than 300° C. The ink set according to the present invention includes at least three separate inks that upon heating decompose to form colored oxides or colored combinations with the materials of the glazed surface upon which they are applied. A first ink of the ink set includes a soluble cobalt complex for use in forming a cyan color. A second ink of the ink set includes a soluble gold complex for use in forming a magenta color. And, a third ink of the ink set includes a soluble transition metal complex for use in forming a yellow color. The third ink preferably includes a soluble praseodymium complex.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: June 11, 2002
    Assignee: Ferro Corporation
    Inventors: Javier Garcia Sainz, Carlos Benet Garcia, Jose Luis Fenollosa Romero, Antonio Manuel Querol Villalba, Patricia C. Secrest
  • 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
  • Patent number: 6290764
    Abstract: Ink for an electrostatic ink jet printer in which, inter alia, the ink and its insulative solvent and color material particle have the following properties: the ink has a volume resistivity of 109 to 1012 &OHgr;cm and a viscosity of 2 to 20 cp; the insulative solvent has a volume resistivity equal to or more than 1010 &OHgr;cm; and the color material particle has an average diameter of between 0.1 and 2 &mgr;m, an absolute value for the ratio (&xgr; electric potential/viscosity) between 10 to 100 (mV/cp), and an absolute value for the &xgr; electric potential of 30 mV to 200 mV. By means of these conditions, the ink provides higher density images, especially at faster printing speeds.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: September 18, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Hiroshi Shibata
  • 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: 6187085
    Abstract: A printing ink composition is described which includes carbon black and an alkali metal hydroxide in combination with an alkenyl succinimide for the dispersion of the carbon black. Also disclosed is a method of preparing a carbon black printing ink composition which comprises dispersing the carbon black in a mineral oil in the presence of an alkali metal hydroxide and an alkenyl succinimide.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: February 13, 2001
    Assignee: Sun Chemical Corporation
    Inventor: Olgierd Wasilewski
  • Patent number: 6176914
    Abstract: Aromatic compound-free solvent for printing inks, consisting of a solvent mixture characterised in that is contains (a) 80-99% by weight aromatic compound-free mineral oil; (b) 1 to 20% by weight of an ester of a C8-C2 fatty acid with up to 60 C atoms in total; and/or (c) 1 to 20% by weight of a fatty alcohol with 6 to 36 C atoms. Also disclosed are printing inks that contain binders, pigments, aromatic compound-free solvents and optional additives.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: January 23, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Dieter Feustel, Matthias Fies