Patents by Inventor Ya-Mi CHUANG

Ya-Mi CHUANG 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).

  • Publication number: 20230057382
    Abstract: The present invention relates to silyl terminated polyurethanes and to intermediates for the preparation thereof. In particular to an allyl-monool-containing initiator, allyl-terminated polyurethane prepolymer and to processes for their preparation. According to another of its aspect, the invention relates to a product obtainable by curing the silyl terminated polyurethane of the invention and to uses thereof.
    Type: Application
    Filed: December 17, 2020
    Publication date: February 23, 2023
    Applicant: Huntsman International LLC
    Inventors: Ya-Mi Chuang, Giulio Martini, Christopher Phanopoulos
  • Publication number: 20220220247
    Abstract: The present invention relates to a liquid composition comprising at least one silylated polymer and at least one tin-free polyhedral oligomeric titanium silsesquioxane in liquid form.
    Type: Application
    Filed: May 26, 2020
    Publication date: July 14, 2022
    Inventors: Christopher Phanopoulos, Ya-Mi Chuang, Giulio Martini
  • Publication number: 20210395429
    Abstract: The present invention relates to a hybrid polyurethane-polyhydroxyurethane (PU-PHU) composition obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound, resulting in the formation of at least one prepolymer, (ii) Reacting said at least one prepolymer with at least one cyclic carbonate functional group containing compound, leading to the formation of a cyclic carbonate-terminated prepolymer, (iii) Ring-opening reaction of said cyclic carbonate-terminated prepolymer with at least one amine functional group containing compound resulting in said hybrid PU-PHU composition, characterised in that said ring-opening reaction step is carried out above room temperature, preferably above 20° C., more preferably above 25° C.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 23, 2021
    Inventors: Ya-Mi Chuang, Giulio Martini, Christopher Phanopoulos
  • Publication number: 20210340310
    Abstract: The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with a first isocyanate-reactive compound having a number average molecular weight lower than 400, resulting in the formation of at least one prepolymer, (ii) Reacting said prepolymer, in stoichiometric excess, with a second isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of a modified prepolymer, (iii) Reacting said modified prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iv) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-termin
    Type: Application
    Filed: September 5, 2019
    Publication date: November 4, 2021
    Inventors: Ya-Mi Chuang, Giulio Martini, Christopher Phanopoulos
  • Publication number: 20210324132
    Abstract: The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of at least one prepolymer having soft blocks and hard blocks in its structure, which prepolymer contains unreacted isocyanate monomer, (ii) Reacting said at least one prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iii) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-terminated prepolymer.
    Type: Application
    Filed: September 5, 2019
    Publication date: October 21, 2021
    Inventors: Ya-Mi Chuang, Giulio Marini, Christopher Phanopoulos
  • Patent number: 9606440
    Abstract: The present invention relates to a method for modifying line edge roughness on a lithographically-produced feature in a material, the method comprising applying a block copolymer to an area on the feature having line edge roughness, the block copolymer comprising a charged hydrophilic polymer block and a non-charged hydrophilic polymer block.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 28, 2017
    Assignee: THE UNIVERSITY OF QUEENSLAND
    Inventors: Idriss Blakey, Ya-Mi Chuang, Andrew Keith Whittaker, Kevin Stanley Jack
  • Publication number: 20160004163
    Abstract: The present invention relates to a method for modifying line edge roughness on a lithographically-produced feature in a material, the method comprising applying a block copolymer to an area on the feature having line edge roughness, the block copolymer comprising a charged hydrophilic polymer block and a non-charged hydrophilic polymer block.
    Type: Application
    Filed: February 25, 2014
    Publication date: January 7, 2016
    Inventors: Idriss BLAKEY, Ya-Mi CHUANG, Andrew Keith WHITTAKER, Kevin Stanley JACK