Patents by Inventor Jong-Cheol Lim

Jong-Cheol Lim 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: 6900256
    Abstract: The present invention relates to polyphosphate ester morpholides, compositions comprising mixtures thereof and thermoplastic resin compositions containing the polyphosphate ester morpholide composition as a flame retardant. The flame retardant compositions comprise mixtures of polyphosphate ester morpholides which are represented by the following general formula I: in which X is 1 or 2; R1 is a C6-C20 aryl group, an alkyl substituted C6-C20 aryl group or a derivative thereof; R2 is a C6-C30 arylene group, an alkyl substituted C6-C30 arylene group or a derivative thereof; n is the average number of morpholide repeating units, m is the average number of R1 repeating units, and n+m is 1 to 5. In accordance with the present invention, it is possible to provide a flame retardant thermoplastic resin compositions having improved flame retardancy even when small amounts of the flame retardant are used.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: May 31, 2005
    Assignee: Cheil Industries Inc.
    Inventors: Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang
  • Publication number: 20040249027
    Abstract: The present invention relates to a flame retardant polycarbonate thermoplastic resin composition that comprises a polycarbonate resin, a rubber modified vinyl-grafted copolymer, a phosphorous mixture of a cyclic phosphazene oligomer compound and a phosphate ester morpholide compound as a flame retardant, and a fluorinated polyolefin resin, which has good flame retardancy, heat resistance, mechanical strength, impact strength, heat stability, processability, and appearance.
    Type: Application
    Filed: March 12, 2004
    Publication date: December 9, 2004
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jong Cheol Lim, Kyung Hoon Seo, Sam Joo Yang
  • Publication number: 20040249070
    Abstract: The present invention relates to a flame retardant polycarbonate thermoplastic resin composition that comprises a polycarbonate resin, a rubber modified vinyl-grafted copolymer, a phosphorous mixture of a cyclic phosphazene oligomer compound and a phosphoric acid ester as a flame retardant, and a fluorinated polyolefin resin.
    Type: Application
    Filed: March 3, 2004
    Publication date: December 9, 2004
    Inventors: Jong Cheol Lim, Sang Hyun Hong, Kyun Hoon Seo, Sam Joo Yang
  • Publication number: 20040122139
    Abstract: The present invention relates to a flame retardant thermoplastic resin composition that contains a phenol resin derivative having good char formability, regardless of the base resin. A flame retardant thermoplastic resin composition according to the present invention comprises (A) 100 parts by weight of a thermoplastic resin as a base resin, (B) about 0.1˜100 parts by weight of a phenol resin derivative, and (C) about 0.1˜50 parts by weight of a phosphoric acid ester morpholide compound or a mixture of phosphoric acid ester morpholide compounds. Another flame retardant thermoplastic resin composition according to the present invention comprises (A) 100 parts by weight of a thermoplastic resin as a base resin, (B) about 0.1˜100 parts by weight of polyphenylene ether, (C) about 0.1˜100 parts by weight of a phenol resin derivative, and (D) about 0.1˜50 parts by weight of a phosphoric acid ester morpholide compound or a mixture of phosphoric acid ester morpholide compounds.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 24, 2004
    Applicant: Cheil Industries Inc.
    Inventors: Jae Ho Yang, Sang Hyun Hong, Gyu Chul Lee, Bok Nam Jang, Young Gil Jang, Sung Hee Ahn, Su Hak Bae, Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang
  • Patent number: 6630524
    Abstract: The present invention related to thermoplastic compositions comprising (A) thermoplastic polycarbonate; (B) a graft polymerisation product of (B-1) a mixture of (B-1.1) styrene, &agr;-methylstyrene, halogen or methyl ring-substituted styrene, C1-C8 alkyl methacrylates, or C1-C8 alkyl acrylate and (B-1.2) acrylonitrile, methacrylonitrile, C1-C8 alkyl methacrylates, C1-C8 alkyl acrylate, maleic anhydride, C1-C4 alkyl or phenyl N-substituted maleimides grafted on (B-2) a polymer with a glass transition temperature of below −10° C.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: October 7, 2003
    Assignee: Cheil Industries, Inc.
    Inventors: Jong Cheol Lim, Je Heun Lee, Ick Hwan Kwon
  • Patent number: 6576161
    Abstract: The present invention relates to polyphosphate ester morpholides, compositions comprising mixtures thereof and thermoplastic resin compositions containing the polyphosphate ester morpholide composition as a flame retardant. The flame retardant compositions comprise mixtures of polyphosphate ester morpholides which are represented by the following general formula I: in which X is 1 or 2; R1 is a C6-C20 aryl group, an alkyl substituted C6-C20 aryl group or a derivative thereof; R2 is a C6-C30 arylene group, an alkyl substituted C6-C30 arylene group or a derivative thereof; n is the average number of morpholide repeating units, m is the average number of R1 repeating units, and n+m is 1 to 5. In accordance with the present invention, it is possible to provide a flame retardant thermoplastic resin compositions having improved flame retardancy even when small amounts of the flame retardant are used.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: June 10, 2003
    Assignee: Cheil Industries, Inc.
    Inventors: Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang
  • Publication number: 20030040560
    Abstract: The present invention relates to polyphosphate ester morpholides, compositions comprising mixtures thereof and thermoplastic resin compositions containing the polyphosphate ester morpholide composition as a flame retardant.
    Type: Application
    Filed: August 19, 2002
    Publication date: February 27, 2003
    Applicant: Cheil Industries Inc.
    Inventors: Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang
  • Patent number: 6437029
    Abstract: The present invention relates to a flame retardant thermoplastic resin composition that comprises a polycarbonate resin, a rubber modified styrene-grafted copolymer, a styrene-containing copolymer, a (meth)acrylic acid ester copolymer, a phosphoric acid ester as a flame retardant and a fluorinated polyolefin resin, which does not show coalescence of the domain resin that might be caused by the low viscosity at a high temperature, and poor flame retardancy, weld-line strength and mechanical properties such as impact strength, and which has a good balance of physical properties such as impact strength, heat resistance, heat stability, processability and appearance.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: August 20, 2002
    Assignee: Cheil Industries Inc.
    Inventors: Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang
  • Publication number: 20020091180
    Abstract: The present invention relates to polyphosphate ester morpholides, compositions comprising mixtures thereof and thermoplastic resin compositions containing the polyphosphate ester morpholide composition as a flame retardant.
    Type: Application
    Filed: November 28, 2001
    Publication date: July 11, 2002
    Applicant: Cheil Industries Inc.
    Inventors: Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang
  • Publication number: 20020077392
    Abstract: The present invention relates to a flame retardant thermoplastic resin composition that comprises a polycarbonate resin, a rubber modified styrene-grafted copolymer, a styrene-containing copolymer, a (meth)acrylic acid ester copolymer, a phosphoric acid ester as a flame retardant and a fluorinated polyolefin resin, which does not show coalescence of the domain resin that might be caused by the low viscosity at a high temperature, and poor flame retardancy, weld-line strength and mechanical properties such as impact strength, and which has a good balance of physical properties such as impact strength, heat resistance, heat stability, processability and appearance.
    Type: Application
    Filed: December 29, 2000
    Publication date: June 20, 2002
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jong-Cheol Lim, Kyung-Hoon Seo, Sam-Joo Yang