Patents by Inventor Jong-Myung Hong

Jong-Myung Hong 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: 7674846
    Abstract: As a paint composition of cationic electrodeposition and a method preparing thereof, the paint composition of cationic electrodeposition comprises about 42 to about 47 percent by weight of a cationic electrodeposition resin composition, about 6 to about 13 percent by weight of a pigment paste composition, and about 40 to about 48 percent by weight of ion exchange water. An electronic part film coated by utilizing the paint composition of cationic electrodeposition on alloy such as an iron, an aluminum, etc. does not include a lead and a tin. In addition, when assembling electronic parts, an error rate is minimized by inhibiting frictional static electricity through anti-static capacity, and the probability of a fire is dirninished by inhibiting static electricity.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: March 9, 2010
    Assignee: DPI Holdings Co., Ltd.,
    Inventors: Hoon Chung, Jong-Myung Hong
  • Publication number: 20070155916
    Abstract: As a paint composition of cationic electrodeposition and a method preparing thereof, the paint composition of cationic electrodeposition comprises about 42 to about 47 percent by weight of a cationic electrodeposition resin composition, about 6 to about 13 percent by weight of a pigment paste composition, and about 40 to about 48 percent by weight of ion exchange water. An electronic part film coated by utilizing the paint composition of cationic electrodeposition on alloy such as an iron, an aluminum, etc. does not include a lead and a tin. In addition, when assembling electronic parts, an error rate is minimized by inhibiting frictional static electricity through anti-static capacity, and the probability of a fire is diminished by inhibiting static electricity.
    Type: Application
    Filed: September 8, 2006
    Publication date: July 5, 2007
    Inventors: Hoon Chung, Jong-Myung Hong
  • Patent number: 7179853
    Abstract: Disclosed are a resin dispersion and a cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. A resin dispersion of a cationic electrodeposition includes an aqueous dispersion prepared by the following processes. The resin dispersion includes a cationic electrodeposition resin, deionized water, an acid for neutralization, a reaction product of manganese phosphate and an acid diluted in an deionized water to 10%, and a cationic surfactant.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: February 20, 2007
    Assignee: DPI Co., Ltd.
    Inventors: Hoon Chung, Seung-Jae Baek, Jong-Myung Hong, Ki-Myong Song
  • Publication number: 20060235138
    Abstract: In order to prepare an alkaline expansive core-shell emulsion resin composition applicable to an aqueous base coat paint composition for an automobile using a urethane aqueous dispersion as an emulsifying agent, first, anionic urethane aqueous dispersion having an acid value of about 50-150 mgKOH/g is prepared. Then, an alkaline expansive core-shell emulsion resin is prepared by using the urethane aqueous dispersion as an emulsifying agent. Flowing or stain after coating may be prevented when using a paint composition prepared by using thus prepared emulsion resin. Water-resistance of a coating layer and alignment of metallic particles are improved.
    Type: Application
    Filed: September 12, 2005
    Publication date: October 19, 2006
    Inventors: Hoon Chung, Seung-Young Choi, Jong-Myung Hong
  • Publication number: 20050107496
    Abstract: Disclosed are a resin dispersion and a cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. A resin dispersion of a cationic electrodeposition includes an aqueous dispersion prepared by the following processes. The resin dispersion includes a cationic electrodeposition resin, deionized water, an acid for neutralization, a reaction product of manganese phosphate and an acid diluted in an deionized water to 10%, and a cationic surfactant.
    Type: Application
    Filed: January 12, 2004
    Publication date: May 19, 2005
    Inventors: Hoon Chung, Seung-Jae Baek, Jong-Myung Hong, Ki-Myong Song
  • Patent number: 6743837
    Abstract: Disclosed are a resin dispersion and a cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. A resin dispersion of a cationic electrodeposition includes an aqueous dispersion prepared by the following processes. The resin dispersion includes a cationic electrodeposition resin, deionized water, an acid for neutralization, a reaction product of manganese phosphate and an acid diluted in an deionized water to 10%, and a cationic surfactant.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: June 1, 2004
    Assignee: DIP Co. Ltd.
    Inventors: Hoon Chung, Seung-Jae Baek, Jong-Myung Hong, Ki-Myong Song
  • Publication number: 20030094382
    Abstract: Disclosed are a resin dispersion and a cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. A resin dispersion of a cationic electrodeposition includes an aqueous dispersion prepared by the following processes. The resin dispersion includes a cationic electrodeposition resin, deionized water, an acid for neutralization, a reaction product of manganese phosphate and an acid diluted in an deionized water to 10%, and a cationic surfactant.
    Type: Application
    Filed: August 14, 2001
    Publication date: May 22, 2003
    Applicant: DPI Co., Ltd.
    Inventors: Hoon Chung, Seung-Jae Baek, Jong-Myung Hong, Ki-Myong Song
  • Patent number: 6476102
    Abstract: Disclosed are a resin dispersion and a low-temperature curable cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. The resin dispersion includes a cationic electrodeposition resin, deionized water, an acid for a neutralization, a reaction product of manganese phosphate and an acid diluted to a concentration of 10% in deionized water and a cationic surfactant.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: November 5, 2002
    Assignee: DPI Co., Ltd.
    Inventors: Hoon Chung, Seung-Jae Baek, Jong-Myung Hong, Ki-Myong Song
  • Patent number: 6372824
    Abstract: Disclosed are a cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. The cationic electrodeposition coating composition having a resinoid dispersed into an aqueous medium comprises a cationic electrodeposition resin and an organic solvent of less than 2.0 percent by weight based on a dispersed solution of the cationic electrodeposition resin.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: April 16, 2002
    Assignee: Daihan Paint & Ink Co., Ltd.
    Inventors: Ki-Myong Song, Jong-Myung Hong, Hoon Chung, Seung-Jae Back
  • Patent number: 6147144
    Abstract: Disclosed are a cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. The cationic electrodeposition coating composition having a resinoid dispersed into an aqueous medium comprises a cationic electrodeposition resin and an organic solvent of less than 2.0 percent by weight based on a dispersed solution of the cationic electrodeposition resin.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: November 14, 2000
    Assignee: Daihan Paint & Ink Co., Ltd.
    Inventors: Ki-Myong Song, Jong-Myung Hong, Hoon Chung, Seung-Jae Back
  • Patent number: 6130274
    Abstract: Disclosed are an aqueous dispersion for a low-temperature curable cationic electrodeposition coating composition and a process for preparing the same in which the dried coating film of the electrodeposition paint has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized to zero. The aqueous dispersion of the cationic electrodeposition coating composition can be manufactured by using (a) a cationic electrodeposition synthetic resin which is obtained by an amino addition reaction of a polyepoxide, (b) an acrylic cationic electrodeposition resin having an amino group, (c) an ester-modified styrene-allyalcohol copolymer synthesized by an esterification reaction of styrene-allylalcohol copolymer with a fatty acid; and (d) a polyurethane-type crosslinking agent prepared by the reaction of methyethyl ketoxime-partially-blocked diisocyanate with trimethylol propane.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: October 10, 2000
    Assignee: Daihan Paint & Ink Co., Ltd.
    Inventors: Ki-Myong Song, Jong-Myung Hong, Hoon Chung, Seung-Jae Back