Patents by Inventor Shu-Ling Peng

Shu-Ling Peng 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).

  • Catalyst composition for preparing high-syndiotactivity polystyrene from styrene or other aryl ethylene monomers and processes using the same
    Patent number: 5914375
    Abstract: An catalyst composition for preparing high-syndiotacticity polystyrene polymers which comprises: (a) a titanium complex represented by the following formula of TiR'.sub.1 R'.sub.2 R'.sub.3 R'.sub.4 or TiR'.sub.1 R'.sub.2 R'.sub.3, wherein R'.sub.1, R'.sub.2, R'.sub.3, and R'.sub.4 are, independently, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a hydrogen atom, or a halogen atom; (b) a cyclopentadienyl complex of silicon (Si), germanium (Ge), or tin (Sn) represented by the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: June 22, 1999
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Cheng Cheng Tsai, Shian-Jy Wang, Shu-Ling Peng, Mickey Sue
  • Titanium (III) bases and .beta.-diketonate coordinated catalyst composition for preparing high-syndiotacticity polystyrene and processes using the same
    Patent number: 5756610
    Abstract: A novel titanium (III)-based .beta.-diketonate-coordinated compound is disclosed for catalyzing the polymerization reaction of syndiotactic polystyrenes. The titanium (III)-based compound is represented by the following formula 1: ##STR1## wherein X is a C.sub.1 .about.C.sub.12 alkoxy or amine group, or a halogen atom; R is a C.sub.1 .about.C.sub.12 alkyl, aryl, or alkylsilane group. Preferably, X is N(SiMe.sub.3).sub.2 -- or OMe--, and R is phenyl, methyl, or t-butyl. The titanium (III)-based compounds are prepared by reacting titanium trichloride with diketone and tetrahydrofuran to form an intermediate product, then reacting the intermediate product Ti(AcAc)Cl.sub.2 (THF).sub.2 with either aminosilane or alcohol.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: May 26, 1998
    Assignee: Industrail Technoloy Research Institute
    Inventors: Jing-Chemg Tsai, Kuang Kai Liu, Shu-Ling Peng, Shian-Jy Wang
  • Catalyst composition for preparing high syndiotacticity polystyrene from styrene of other arylethylene monomers and processes using the same
    Patent number: 5644009
    Abstract: An catalyst composition for preparing high-syndiotacticity polystyrene polymers which comprises: (a) a titanium complex represented by the following formula of TiR'.sub.1 R'.sub.2 R'.sub.3 R'.sub.4 or TiR'.sub.1 R'.sub.2 R'.sub.3, wherein R'.sub.1, R'.sub.2, R'.sub.3, and R'.sub.4 are, independently, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a hydrogen atom, or a halogen atom; (b) a cyclopentadienyl complex of silicon (Si), germanium (Ge), or tin (Sn) represented by the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: July 1, 1997
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Cherng Tsai, Shian-Jy Wang, Shu-Ling Peng, Mickey Sue