Patents by Inventor Mao-Song Lee

Mao-Song Lee 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).

  • Degradable plastics
    Patent number: 5308897
    Abstract: A composition of matter including a polymeric material which is either a plastic having carbon to carbon linkages or a binary blend of the plastic and starch, in which the plastic is at least 25% by weight of the binary blend; and an organic peracid compound dispersed in the polymeric material, the quantity of the peracid compound being 0.1 to 10% by weight of the polymeric material.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: May 3, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Hung-Yuan Hsu, Shu-Chieh Liuo, Shu-Fang Jiang, Jian-Hong Chen, Ho-May Lin, Herng-Dar Hwu, Muh-Lan Chen, Mao-Song Lee, Teh Hu
  • Preparation of nylon 6 with alkali metal hypophosphite catalyst and organic phosphite catalyst
    Patent number: 5298594
    Abstract: A method for the polymerization of Nylon 6 from caprolactam and water using a catalyst composition comprising a primary catalyst, which can be an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and an organic phosphite as cocatalyst. The catalyst composition used in this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: March 29, 1994
    Assignee: Chinese Petrochemical Development Corp.
    Inventors: Wu-Bin Yuo, Gwo-Yang Chang, Jeng-Yue Wu, Mao-Song Lee
  • Preparation of polyamide with mixture of phosphorus catalysts
    Patent number: 5298598
    Abstract: A catalyst composition for the polymerization of polyamide/copolyamide comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and an organic phosphite cocatalyst. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: March 29, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Wu-Bin Yuo, Der-Tarng Su, Jeng-Yue Wu, Mao-Song Lee
  • Aqueous preparation of polyamide with catalyst mixture
    Patent number: 5298597
    Abstract: A polyamide/copolyamide catalyst composition comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and a cocatalyst which comprises an organic salt or an inorganic salt. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: March 29, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Wu-Bin Yuo, Ching-Pei Chen, Jeng-Yue Wu, Mao-Song Lee
  • Nylon 6 catalyst system
    Patent number: 5290747
    Abstract: A catalyst composition for the polymerization of Nylon 6 from caprolactam comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkaliearth metal hypophosphite, and an organic phosphite cocatalyst. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: March 1, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Wu-Bin Yuo, Jeng-Yue Wu, Mao-Song Lee
  • Catalyst system for polyamide and copolyamide
    Patent number: 5264406
    Abstract: A catalyst composition for the polymerization of polyamide/copolyamide comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and a cocatalyst which comprises an amine compound. The cocatalyst amine compound is selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), and benzotriazoles. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: November 23, 1993
    Assignee: Industrial Technology Research Institute
    Inventors: Wu-Bin Yuo, Wen-Jer Chen, Jeng-Yue Wu, Mao-Song Lee
  • Nylon 6 synthesis with water, alkali metal hypophoshite catalyst and amine cocatalyst
    Patent number: 5264541
    Abstract: A method for the polymerization of Nylon 6 from caprolactam and water using a catalyst composition comprising a primary catalyst, which can be an alkali metal hypophosphite or an alkali-earth metal hypophosphite, and an amine cocatalyst. The amine cocatalyst can be selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), Group I benzotriazoles, and Group II benzotriazoles. The catalyst composition used in this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: November 23, 1993
    Assignee: Industrial Technology Research Institute
    Inventors: Wu-Bin Yuo, Shyh-Yang Lee, Mao-Song Lee, Jeng-Yue Wu
  • Catalyst system for nylon 6 synthesis
    Patent number: 5260246
    Abstract: A catalyst composition for the polymerization of Nylon 6 from caprolactam comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkaliearth metal hypophosphite, and an amine cocatalyst. The amine cocatalyst can be selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), Group I benzotriazoles, and Group I benzotriazoles. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: November 9, 1993
    Assignee: Industrial Technology Research Institute
    Inventors: Wu-Bin Yuo, Mao-Song Lee, Jeng-Yue Wu
  • Polymer blends of polyamides, styrenic resins, and impact modifiers
    Patent number: 5248726
    Abstract: Polymer blend compositions having improved toughness which comprise 99-1 weight percent polyamide resin, 1-99 weight percent ABS resin, and 1-100 phr of carboxylated nitrile rubbers, based upon the total weight of the polyamide and ABS resin.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: September 28, 1993
    Assignee: Industrial Technology Research Institute
    Inventors: Jen-Lien Lin, Hsin-Ching Kao, Mao-Song Lee, Jia-Pang Hsu, Ting K. Wu