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).
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Patent number: 11845879Abstract: 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: GrantFiled: January 6, 2011Date of Patent: December 19, 2023Assignee: ROHM AND HAAS COMPANYInventors: Lan Deng, Brian R. Einsla, Chao-Jen Chung, Thomas William Kermis, Rebecca LuAnn Smith
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Patent number: 9193208Abstract: 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: GrantFiled: April 19, 2012Date of Patent: November 24, 2015Assignees: Rohm and Haas Company, Papierfabrik August Koehler AGInventors: Chao-Jen Chung, Lan Deng, Brian R. Einsla, Michael Horn, Juergen Keske, Douglas Rudnick
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Publication number: 20140296419Abstract: 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: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Inventors: Chao-Jen Chung, Edward La Fleur, Edwin H. Nungesser
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Patent number: 8795829Abstract: 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: GrantFiled: September 20, 2011Date of Patent: August 5, 2014Assignee: Rohm and Haas CompanyInventors: Chao Jen Chung, Edward E. Lafleur, Edwin Nungesser
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Publication number: 20140037901Abstract: 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: ApplicationFiled: April 19, 2012Publication date: February 6, 2014Applicant: Rohm and Haas CompanyInventors: Chao-Jen Chung, Lan Deng, Brian R. Einsla, Michael Horn, Juergen Keske, Douglas Rudnick
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Patent number: 8563130Abstract: 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: GrantFiled: September 20, 2011Date of Patent: October 22, 2013Assignee: Rohm and Haas CompanyInventors: Chao Jen Chung, Edward E. Lafleur, Edwin Nungesser, Edward C. Greer
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Patent number: 8476190Abstract: 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: GrantFiled: April 10, 2012Date of Patent: July 2, 2013Assignee: Rohm and Haas CompanyInventors: Ravi Mukkamala, Chao-Jen Chung
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Publication number: 20120277098Abstract: 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: ApplicationFiled: April 10, 2012Publication date: November 1, 2012Inventors: Ravi MUKKAMALA, Chao-Jen CHUNG
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Patent number: 8247027Abstract: 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: GrantFiled: September 25, 2009Date of Patent: August 21, 2012Assignee: Rohm and Haas CompanyInventors: Ravi Mukkamala, Chao-Jen Chung
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Publication number: 20120070656Abstract: 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: ApplicationFiled: September 20, 2011Publication date: March 22, 2012Inventors: Chao-Jen Chung, Edward C. Greer, Edward E. Lafleur, Edwin Nungesser
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Publication number: 20120070655Abstract: 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: ApplicationFiled: September 20, 2011Publication date: March 22, 2012Inventors: Chao-Jen Chung, Edward E. Lafleur, Edwin Nungesser
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Publication number: 20110172094Abstract: 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: ApplicationFiled: January 6, 2011Publication date: July 14, 2011Inventors: Lan Deng, Brian Russell Einsla, Chao-Jen Chung, Thomas William Kermis, Rebecca LuAnn Smith
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Publication number: 20100087315Abstract: 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: ApplicationFiled: September 25, 2009Publication date: April 8, 2010Inventors: Ravi Mukkamala, Chao-Jen Chung
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Patent number: 7235603Abstract: 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: GrantFiled: March 17, 2004Date of Patent: June 26, 2007Assignee: Rohm and Haas CompanyInventors: Thomas Glenn Madle, Matthew Stewart Gebhard, Chao-Jen Chung, Gary David Greenblatt
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Patent number: 7074842Abstract: 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: GrantFiled: January 23, 2003Date of Patent: July 11, 2006Assignee: Rohm and Haas CompanyInventors: Chao-Jen Chung, Maureen Joanne Finley, Zhenwen Fu
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Publication number: 20060079602Abstract: 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: ApplicationFiled: October 3, 2005Publication date: April 13, 2006Inventors: Eric Johnson, Chao-Jen Chung
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Publication number: 20050282931Abstract: 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: ApplicationFiled: June 8, 2005Publication date: December 22, 2005Inventors: Chao-Jen Chung, Eric Johnson
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Patent number: 6930135Abstract: 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: GrantFiled: February 27, 2003Date of Patent: August 16, 2005Assignee: Rohm and Haas CompanyInventors: Chao-Jen Chung, Maureen Joanne Finley, Zhenwen Fu, William David Sheasley
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Publication number: 20040198903Abstract: 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: ApplicationFiled: March 17, 2004Publication date: October 7, 2004Inventors: Thomas Glenn Madle, Matthew Stewart Gebhard, Chao-Jen Chung, Gary David Greenblatt
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Publication number: 20030176534Abstract: 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: ApplicationFiled: February 27, 2003Publication date: September 18, 2003Inventors: Chao-Jen Chung, Maureen Joanne Finley, Zhenwen Fu, William David Sheasley