Emulsion Patents (Class 106/31.25)
  • Patent number: 6454843
    Abstract: A stencil printing ink contains a polyamino-amide dispersant and a smectite.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: September 24, 2002
    Assignee: Riso Kagaku Corporation
    Inventor: Hiroshi Matsuda
  • Patent number: 6451863
    Abstract: The invention relates to the use of water-insoluble poly(oxy-1,4-butanediyl)-containing polyoxyalkylene-polysiloxane block copolymers of the general average formula wherein the variables and indices are described herein as defoaming agents for aqueous media. This invention also provides for defoaming compositions comprising said Water-insoluble poly(oxy-1,4-butanediyl)-containing polyoxyalkylene-polysiloxane block copolymers.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: September 17, 2002
    Assignee: Golschmidt AG
    Inventors: Thomas Ebbrecht, Wolfgang Josten, Michael Keup, Stefan Silber, Roland Sucker
  • Patent number: 6433028
    Abstract: The invention relates to the use of water-insoluble polyoxyalkylene-polysiloxane block copolymers of the general average formula wherein the variables and indices are described herein as defoaming agents for aqueous media. This invention also provides for defoaming compositions comprising said water-insoluble polyoxyalkylene-polysiloxane block copolymers as well as coating materials, printing inks and cooling lubricants containing the inventive defoaming compositions.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: August 13, 2002
    Assignee: Goldschmidt AG
    Inventors: Thomas Ebbrecht, Wolfgang Josten, Michael Keup, Stefan Silber, Roland Sucker
  • Patent number: 6433117
    Abstract: The present invention relates to aqueous ink jet inks containing a copolymer dispersant comprising at least one polymerized monomer having the general formula: CH2═C(R3)C(O)OXa(C2H4O)b—(C3H6O)c—R4 where a=0 or 1; when a=1, X is an akyl, aryl, or alkaryl diradical connecting group of 1-9 carbon atoms; b and c are independently selected from the range of 0-100 provided that b and c are not simultaneously 0; R3 is H or CH3; and R4 is preferably PO3H2.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: August 13, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Sheau-Hwa Ma, Edward Francis McBride
  • Patent number: 6432183
    Abstract: Aqueous inkjet inks with oil-soluble dyes that are made more soluble in the aqueous vehicle by making a microemulsion in the ink of solvent moieties with both solubilizing groups and hydrophobic groups.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: August 13, 2002
    Assignee: Hewlett-Packard Company
    Inventor: Alexey S Kabalnov
  • Publication number: 20020035197
    Abstract: This invention relates to washable coloring compositions comprising specific low-molecular weight styrene-maleic anhydride copolymers. Such copolymers provide excellent washability enhancing performance in association with colorants and inks. Also, these specific compounds exhibit low viscosities which allow for greater amounts of washability enhancing copolymers to be added within colorant and ink formulations while simultaneously permitting the retention of sufficiently low overall viscosities of the target compositions. Such copolymers provide highly effective prevention of permanent colorations to certain substrates, such as skin, clothing, and the like, by the inks, dyes, and the like, within the target compositions. Marker styluses, writing implements, and other colorant transfer devices, containing these inventive compositions, are also encompassed within this invention.
    Type: Application
    Filed: August 3, 1999
    Publication date: March 21, 2002
    Inventors: RICHARD A. VANDAHM, MICHAEL A. VALENTI
  • Patent number: 6355734
    Abstract: A method of preparing a resin-fortified polymer emulsion is disclosed. In one embodiment, the method comprises polymerizing at least one monomer in the presence of a surfactant, an initiator, a resin and sugar-based vinyl monomer under emulsion polymerization reaction conditions effective for initiating polymerization, wherein an emulsion polymerization product is formed that comprises a sugar-based vinyl monomer. A composition comprising resin-fortified emulsion polymer comprising a sugar-based vinyl monomer, a resin and at least one emulsion polymerizable monomer is also disclosed. An ink comprising a pigment and a resin-fortified polymer emulsion comprising a sugar-based vinyl monomer, a resin and at least one emulsion polymerizable monomer is also disclosed.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: March 12, 2002
    Assignee: Ecosynthetix Inc.
    Inventors: Scott E. Cassar, David H. Fishman, Ian J. McLennan, Steven Bloembergen
  • Patent number: 6342094
    Abstract: Water-based ink-jet ink compositions and a method of making them, the compositions being miniemulsions, i.e., an aqueous vehicle containing oil particles with dissolved dye molecules, the oil particles having a diameter below 1 &mgr;m.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: January 29, 2002
    Assignee: Hewlett-Packard Company
    Inventor: Alexey S Kabalnov
  • Publication number: 20020006982
    Abstract: Disclosed herein is an ink comprising a pigment and a resin encapsulating a coloring material. The ink can provide an image high in optical density and excellent in rub-off resistance, water fastness and resistance to line marker, and exhibits excellent ejection stability from a recording head when used in ink-jet recording.
    Type: Application
    Filed: April 1, 1999
    Publication date: January 17, 2002
    Inventor: YUTAKA KURABAYASHI
  • Patent number: 6331203
    Abstract: An aqueous ink for a ball-point pen which is stable over time and has high pigment dispersion stability, includes a pigment, a water-soluble organic solvent, water, xanthane gum of about 0.01 to about 0.2 wt. % and a sodium alginate of about 0.2 to about 0.6 wt. % of a total amount of the ink.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: December 18, 2001
    Assignee: Kotobuki & Co., Ltd.
    Inventors: Katsuya Hattori, Akio Nakamura, Mikio Morishita
  • Patent number: 6329446
    Abstract: An ink comprised of a vehicle, colorant, and resin emulsion, and wherein the resin emulsion contains water, surfactant, resin particles and solubilized resin obtained from the polymerization of a mixture of olefinic monomers, and wherein at least one of the olefinic monomers is an acid.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: December 11, 2001
    Assignee: Xerox Corporation
    Inventors: Guerino G. Sacripante, Garland J. Nichols, Elizabeth A. Kneisel, Chieh-Min Cheng
  • Publication number: 20010044493
    Abstract: This invention relates to washable coloring compositions comprising specific low-molecular weight styrene-maleic anhydride copolymers. Such copolymers provide excellent washability enhancing performance in association with colorants and inks. Also, these specific compounds exhibit low viscosities which allow for greater amounts of washability enhancing copolymers to be added within colorant and ink formulations while simultaneously permitting the retention of sufficiently low overall viscosities of the target compositions. Such copolymers provide highly effective prevention of permanent colorations to certain substrates, such as skin, clothing, and the like, by the inks, dyes, and the like, within the target compositions. Marker styluses, writing implements, and other colorant transfer devices, containing these inventive compositions, are also encompassed within this invention.
    Type: Application
    Filed: June 15, 2001
    Publication date: November 22, 2001
    Inventors: Richard A. VanDahm, Michael A. Valenti
  • Patent number: 6297296
    Abstract: The invention relates to the use of cationic latex particles that can complex with anionic dyes to provide water fastness and further to provide a medium in which inherently unstable anionic dyes can be brought in close proximity with other anionic components, by complexation to cationic latices, in order to stabilize the anionic dyes especially with regard to light and oxidative degradation. In particular this invention will provide for methods of generating waterfast and improved lightfast ink jet images.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: October 2, 2001
    Assignee: Kodak Polychrome Graphics LLC
    Inventor: Allan Wexler
  • Patent number: 6275816
    Abstract: A aqueous ink for a ball-point pen which is stable over time and has high pigment dispersion stability, includes a pigment, a water-soluble organic solvent, water, xanthane gum of about 0.01 to about 0.2 wt. % and a sodium alginate of about 0.2 to about 0.6 wt. % of a total amount of the ink.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: August 14, 2001
    Assignee: Kotobuki & Co., LTD
    Inventors: Katsuya Hattori, Akio Nakamura, Mikio Morishita
  • Patent number: 6174938
    Abstract: A water-based coloring composition suitable for use in children's markers comprising a carrier, submicron polymeric particles, and a neutral buoyancy additive. The coloring compositions produce unique opaque images on a wide variety of writing surfaces. Additionally, the invention includes a water-based dry erase coloring composition suitable for use in children's markers comprising a carrier, submicron polymeric particles, a neutral buoyancy additive, and a release agent.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: January 16, 2001
    Assignee: Binney & Smith Inc.
    Inventors: Richard E. Miller, Andree F. Santini, Terry L. Sutton, Sr.