Patents by Inventor Chi-Lan Li

Chi-Lan Li 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).

  • Modified copolymer of olefin and cycloolefin
    Patent number: 6667379
    Abstract: The present invention provides an olefin/cycloolefin/alkylstyrene copolymer which is non-functionalized, functionalized, or grafted. By the functionalization of the benzylic protons of the alkylstyrene unit, the copolymer can be functionalized. The functionalized or grafted olefin/cycloolefin/alkylstyrene copolymer has good adhesion to a substrate and good compatibility with other polymers compared with the non-functionalized copolymer.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: December 23, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Hua Chan, Chi-Lan Li, Ching Ting, Joung-Yei Frank Chen
  • Modified copolymer of olefin and cycloolefin
    Patent number: 6590047
    Abstract: The present invention provides an olefin/cycloolefin/alkylstyrene copolymer which is non-functionalized, functionalized, or grafted. By the functionalization of the benzylic protons of the alkylstyrene unit, the copolymer can be functionalized. The functionalized or grafted olefin/cycloolefin/alkylstyrene copolymer has good adhesion to a substrate and good compatibility with other polymers compared with the non-functionalized copolymer.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: July 8, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Hua Chan, Chi-Lan Li, Ching Ting, Joung-Yei Frank Chen
  • Graft copolymer of syndiotactic styrene copolymer
    Patent number: 6437051
    Abstract: The present invention provides a graft copolymer of a syndiotactic styrene/para-alkylstyrene copolymer, having the formula of wherein R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, and primary and secondary haloalkyl; X is a functional group selected from a group containing halogen, oxygen, sulfur, silicon, nitrogen, carbon, phosphorus, and mixtures thereof; Y is an atactic polymer moiety; a ranges from 10 to 30000; b ranges from 0 to 30000; c ranges from 0 to 30000; and d ranges from 1 to 30000. The compatibility of the graft copolymer of syndiotactic styrene/para-alkylstyrene copolymer of the present invention with other polymers is improved over a syndiotactic styrene polymer. Also, the graft copolymer of the present invention can serve as a compatibilizer for a polymer blend.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: August 20, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Chi-Lan Li, Jing-Cherng Tsai, Joung-Yei Chen, Wee-Pin Chao, Bor-Ping Wang, In-Mau Chen, Huai-Mei Chou
  • Resin composition with excellent dielectric property
    Publication number: 20020062926
    Abstract: A resin composition with a low dielectric constant comprises: (a) a functionalized cyclic olefin copolymer; (b) a mixture of epoxy resins; and (c) a curing agent. A laminate and a resin coated clad made of the resin composition exhibit reduced dielectric constants of 3.3 and 2.9 at 1 GHz, respectively.
    Type: Application
    Filed: May 16, 2001
    Publication date: May 30, 2002
    Applicant: Industrial Technology Research Institute
    Inventors: Hsien-Yin Tsai, Joung-Yei Chen, Hsi-Hsin Shih, Chi-Lan Li, Wei-Han Liao
  • Modified copolymer of olefin and cycloolefin
    Publication number: 20020061986
    Abstract: The present invention provides an olefin/cycloolefin/alkylstyrene copolymer which is non-functionalized, functionalized, or grafted. By the functionalization of the benzylic protons of the alkylstyrene unit, the copolymer can be functionalized. The functionalized or grafted olefin/cycloolefin/alkylstyrene copolymer has good adhesion to a substrate and good compatibility with other polymers compared with the non-functionalized copolymer.
    Type: Application
    Filed: December 28, 2001
    Publication date: May 23, 2002
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shu-Hua Chan, Chi-Lan Li, Ching Ting, Joung-Yei Frank Chen
  • Graft copolymer of syndiotatic styrene copolymer
    Publication number: 20020019494
    Abstract: The present invention provides a graft copolymer of a syndiotactic styrene/para-alkylstyrene copolymer, having the formula of 1
    Type: Application
    Filed: December 29, 2000
    Publication date: February 14, 2002
    Inventors: Chi-Lan Li, Jing-Cherng Tsai, Joung-Yei Chen, Wee-Pin Chao, Bor-Ping Wang, In-Mau Chen, Huai-Mei Chou