Patents by Inventor Chao-Jen Chung

Chao-Jen Chung 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: 11845879
    Abstract: A recording material including a support having at least one colored surface and a layer of polymeric material is described. The layer including polymeric particles has a core/shell structure, and the particles are either (i) particles having an outermost polymer shell having a calculated Tg of from 40° C. to 80° C., or (ii) particles having an inner polymer shell having a calculated Tg of from 40° C. to 130° C. and an outer polymer shell having a calculated Tg of from ?55° C. to 50° C. The calculated Tg of said outer polymer shell is lower than that of said inner polymer shell, the particles including, when dry, at least one void capable of providing opacity to said layer, and the colored surface has sufficient color density to be visibly contrasting to a surface of the subsequent layer including the polymeric particles disposed thereon.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: December 19, 2023
    Assignee: ROHM AND HAAS COMPANY
    Inventors: Lan Deng, Brian R. Einsla, Chao-Jen Chung, Thomas William Kermis, Rebecca LuAnn Smith
  • Patent number: 9193208
    Abstract: A recording material including a support and disposed thereon at least one layer including certain core/shell polymeric particles, the particles having, whey dry, at least one void; and an opacity reducer is provided. A method for providing an image using the recording sheet is also provided.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: November 24, 2015
    Assignees: Rohm and Haas Company, Papierfabrik August Koehler AG
    Inventors: Chao-Jen Chung, Lan Deng, Brian R. Einsla, Michael Horn, Juergen Keske, Douglas Rudnick
  • Publication number: 20140296419
    Abstract: A composition containing polymeric particles. The polymeric particles have an average particle diameter from 30 to 300 nm, at least 95 wt % polymerized residues of styrenic monomers and from 0 to 5 wt % polymerized residues of acid monomers. The composition also contains a film-forming polymer having Tg no greater than 80° C. and comprising from 40 to 65 wt % polymerized residues of C4-C10 alkyl acrylates and 35 to 60 wt % polymerized residues of C1-C4 alkyl(meth)acrylates. The refractive index difference between the polymeric particles and the film-forming polymer is at least 0.04.
    Type: Application
    Filed: June 17, 2014
    Publication date: October 2, 2014
    Inventors: Chao-Jen Chung, Edward La Fleur, Edwin H. Nungesser
  • Patent number: 8795829
    Abstract: A composition containing polymeric particles. The polymeric particles have an average particle diameter from 30 to 300 nm and a Vicker's scale hardness from 100 to 700 Kgf/mm2. The composition also contains a film-forming polymer having Tg no greater than 80° C. The refractive index difference between the polymeric particles and the film-forming polymer is at least 0.04.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 5, 2014
    Assignee: Rohm and Haas Company
    Inventors: Chao Jen Chung, Edward E. Lafleur, Edwin Nungesser
  • Publication number: 20140037901
    Abstract: A recording material including a support and disposed thereon at least one layer including certain core/shell polymeric particles, the particles having, when dry, at least one void; and an opacity reducer is provided. A method for providing an image using the recording sheet is also provided.
    Type: Application
    Filed: April 19, 2012
    Publication date: February 6, 2014
    Applicant: Rohm and Haas Company
    Inventors: Chao-Jen Chung, Lan Deng, Brian R. Einsla, Michael Horn, Juergen Keske, Douglas Rudnick
  • Patent number: 8563130
    Abstract: A composition comprising polymeric particles having an average particle diameter from 0.5 to 30 ?m and Vicker's scale hardness from 100 to 700 Kgf/mm2. The composition also contains a film-forming polymer having Tg no greater than 80° C. The average refractive index difference measured from 400 nm to 1100 nm between the polymeric particles and the film-forming polymer is no greater than 0.04.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: October 22, 2013
    Assignee: Rohm and Haas Company
    Inventors: Chao Jen Chung, Edward E. Lafleur, Edwin Nungesser, Edward C. Greer
  • Patent number: 8476190
    Abstract: In the present invention a composite particle including: a first polymeric particle having a diameter of from 100 nm to 3.5 microns including a core and a shell: the core including, when dry, at least one void; and the shell polymer having a calculated glass transition temperature (“Tg”) greater than 50° C.; and a second polymeric particle disposed on the surface of the first polymeric particle, the second polymeric particle having a minimum film-forming temperature of greater than 20° C.; wherein the ratio of the diameter of the first polymeric particle to the diameter of the second polymeric particle is from 1 to 50; and wherein the ratio of the weight of the first polymeric particle to the weight of the second polymeric particle is from 0.1 to 40, is provided.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: July 2, 2013
    Assignee: Rohm and Haas Company
    Inventors: Ravi Mukkamala, Chao-Jen Chung
  • Publication number: 20120277098
    Abstract: In the present invention a composite particle including: a first polymeric particle having a diameter of from 100 nm to 3.5 microns including a core and a shell: the core including, when dry, at least one void; and the shell polymer having a calculated glass transition temperature (“Tg”) greater than 50° C.; and a second polymeric particle disposed on the surface of the first polymeric particle, the second polymeric particle having a minimum film-forming temperature of greater than 20° C.; wherein the ratio of the diameter of the first polymeric particle to the diameter of the second polymeric particle is from 1 to 50; and wherein the ratio of the weight of the first polymeric particle to the weight of the second polymeric particle is from 0.1 to 40, is provided.
    Type: Application
    Filed: April 10, 2012
    Publication date: November 1, 2012
    Inventors: Ravi MUKKAMALA, Chao-Jen CHUNG
  • Patent number: 8247027
    Abstract: In the present invention a composite particle including: a first polymeric particle having a diameter of from 100 nm to 3.5 microns including a core and a shell: the core including, when dry, at least one void; and the shell polymer having a calculated glass transition temperature(“Tg”) greater than 50° C.; and a second polymeric particle disposed on the surface of the first polymeric particle, the second polymeric particle having a minimum film-forming temperature of greater than 20° C.; wherein the ratio of the diameter of the first polymeric particle to the diameter of the second polymeric particle is from 1 to 50; and wherein the ratio of the weight of the first polymeric particle to the weight of the second polymeric particle is from 0.1 to 40, is provided.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: August 21, 2012
    Assignee: Rohm and Haas Company
    Inventors: Ravi Mukkamala, Chao-Jen Chung
  • Publication number: 20120070656
    Abstract: A composition comprising polymeric particles having an average particle diameter from 0.5 to 30 ?m and Vicker's scale hardness from 100 to 700 Kgf/mm2. The composition also contains a film-forming polymer having Tg no greater than 80° C. The average refractive index difference measured from 400 nm to 1100 nm between the polymeric particles and the film-forming polymer is no greater than 0.04.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 22, 2012
    Inventors: Chao-Jen Chung, Edward C. Greer, Edward E. Lafleur, Edwin Nungesser
  • Publication number: 20120070655
    Abstract: A composition containing polymeric particles. The polymeric particles have an average particle diameter from 30 to 300 nm and a Vicker's scale hardness from 100 to 700 Kgf/mm2. The composition also contains a film-forming polymer having Tg no greater than 80° C. The refractive index difference between the polymeric particles and the film-forming polymer is at least 0.04.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 22, 2012
    Inventors: Chao-Jen Chung, Edward E. Lafleur, Edwin Nungesser
  • Publication number: 20110172094
    Abstract: A recording material including a certain support and disposed thereon at least one layer including certain core/shell polymeric particles, the particles having, when dry, at least one void is provided. A method for providing an image using the recording sheet is also provided.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 14, 2011
    Inventors: Lan Deng, Brian Russell Einsla, Chao-Jen Chung, Thomas William Kermis, Rebecca LuAnn Smith
  • Publication number: 20100087315
    Abstract: In the present invention a composite particle including: a first polymeric particle having a diameter of from 100 nm to 3.5 microns including a core and a shell: the core including, when dry, at least one void; and the shell polymer having a calculated glass transition temperature(“Tg”) greater than 50° C.; and a second polymeric particle disposed on the surface of the first polymeric particle, the second polymeric particle having a minimum film-forming temperature of greater than 20° C.; wherein the ratio of the diameter of the first polymeric particle to the diameter of the second polymeric particle is from 1 to 50; and wherein the ratio of the weight of the first polymeric particle to the weight of the second polymeric particle is from 0.1 to 40, is provided.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 8, 2010
    Inventors: Ravi Mukkamala, Chao-Jen Chung
  • Patent number: 7235603
    Abstract: An ambient curable aqueous dispersion of polymer particles containing pendant ethylenically unsaturated side chains; a method of applying to a substrate a coating composition containing the aqueous dispersion of polymer particles; and a method of making the aqueous dispersion of polymer particles are provided.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: June 26, 2007
    Assignee: Rohm and Haas Company
    Inventors: Thomas Glenn Madle, Matthew Stewart Gebhard, Chao-Jen Chung, Gary David Greenblatt
  • Patent number: 7074842
    Abstract: An inkjet ink binder composition including an emulsion polymer, the polymer including as polymerized units 1–10%, by weight based on dry polymer weight, of a monomer selected from the group consisting of methylol acrylamide, methylol methacrylamide, methyl acrylamidoglycolate methyl ether, acrylamidoglycolic acid, and mixtures thereof is provided. An inkjet ink composition including the emulsion polymer, a liquid medium, and a pigment and a method for improving the durability of inkjet ink printed on a substrate are also provided.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: July 11, 2006
    Assignee: Rohm and Haas Company
    Inventors: Chao-Jen Chung, Maureen Joanne Finley, Zhenwen Fu
  • Publication number: 20060079602
    Abstract: This invention concerns polymeric emulsion binders which are suitable for use in ink jet inks. More specifically, this invention relates to ink jet inks comprised of polymeric binder emulsions comprising low levels of water soluble material, and ink jet inks comprising a polymeric binder emulsion with a low level of water soluble materials.
    Type: Application
    Filed: October 3, 2005
    Publication date: April 13, 2006
    Inventors: Eric Johnson, Chao-Jen Chung
  • Publication number: 20050282931
    Abstract: A polymeric binder useful in making ink formulations, especially inkjet ink formulations, is described, whereby the acid monomer in the polymer is heterogeneously distributed. Also described is the method of making such binder. The inks prepared using the polymeric binders of the invention provide inks with improved print appearance and print performance.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 22, 2005
    Inventors: Chao-Jen Chung, Eric Johnson
  • Patent number: 6930135
    Abstract: A non-pigmented ink composition suitable for use in ink jet printing is provided made up of a blend of two or more hollow micro-spheres comprising a small particle size hollow micro-sphere and a larger particle size hollow micro-sphere. The remainder of the ink composition comprises a suitable carrier vehicle, which typically contains water, alcohols, surfactants, humectants and optionally a resin component.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: August 16, 2005
    Assignee: Rohm and Haas Company
    Inventors: Chao-Jen Chung, Maureen Joanne Finley, Zhenwen Fu, William David Sheasley
  • Publication number: 20040198903
    Abstract: An ambient curable aqueous dispersion of polymer particles containing pendant ethylenically unsaturated side chains; a method of applying to a substrate a coating composition containing the aqueous dispersion of polymer particles; and a method of making the aqueous dispersion of polymer particles are provided.
    Type: Application
    Filed: March 17, 2004
    Publication date: October 7, 2004
    Inventors: Thomas Glenn Madle, Matthew Stewart Gebhard, Chao-Jen Chung, Gary David Greenblatt
  • Publication number: 20030176534
    Abstract: A non-pigmented ink composition suitable for use in ink jet printing is provided made up of a blend of two or more hollow micro-spheres comprising a small particle size hollow micro-sphere and a larger particle size hollow micro-sphere. The remainder of the ink composition comprises a suitable carrier vehicle, which typically contains water, alcohols, surfactants, humectants and optionally a resin component.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 18, 2003
    Inventors: Chao-Jen Chung, Maureen Joanne Finley, Zhenwen Fu, William David Sheasley