Patents by Inventor Tien-Chieh Chao

Tien-Chieh Chao 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: 20230279277
    Abstract: An adhesive composition comprising an epoxy compound and a compound comprising at least one aminimide functional group is disclosed. The compound comprising the at least one aminimide functional group is present in an amount from 2-8% by weight based on total weight of the adhesive composition and reacts with the epoxy compound upon activation by an external energy source. The adhesive composition also may comprise an amidine salt.
    Type: Application
    Filed: April 28, 2023
    Publication date: September 7, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
  • Patent number: 11674062
    Abstract: An adhesive composition comprising an epoxy compound and a compound comprising at least one aminimide functional group is disclosed. The compound comprising the at least one aminimide functional group is present in an amount from 2-8% by weight based on total weight of the adhesive composition and reacts with the epoxy compound upon activation by an external energy source. The adhesive composition also may comprise an amidine salt.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 13, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
  • Patent number: 11629276
    Abstract: Disclosed herein are compositions including (a) a first component comprising (1) an epoxy-adduct that is the reaction product of reactants comprising a first epoxy compound, a polyol, and an anhydride and/or a diacid and (2) a second epoxy compound; (b) rubber particles having a core/shell structure and/or graphenic carbon particles; and (c) a second component that chemically reacts with the first component at ambient or slightly thermal conditions. Also disclosed herein are compositions including (a) an epoxy-capped flexibilizer; (b) a heat-activated latent curing agent; and optionally (c) rubber particles having a core/shell structure and/or graphenic carbon particles; (d) an epoxy/CTBN adduct; and/or (e) an epoxy/dimer acid adduct. The heat-activated latent curing agent may include at least one reaction product of reactants including an epoxy compound and an amine and/or an alkaloid.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: April 18, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
  • Patent number: 11518844
    Abstract: Disclosed herein are methods of preparing an aminimide. An epoxy compound is reacted with a hydrazine compound comprising a trivalent nitrogen, and an anhydride functional material or a cyclic compound containing a carbonyl group and at least one heteroatom alpha to the carbonyl group at a temperature greater than 20° C. to form the aminimide. At least one of the epoxy compound and the anhydride functional material or the cyclic compound is polymeric.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: December 6, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Hongying Zhou, Masayuki Nakajima, Shanti Swarup, Tien-Chieh Chao
  • Publication number: 20220213362
    Abstract: Disclosed herein are compositions including (a) a first component comprising (1) an epoxy-adduct that is the reaction product of reactants comprising a first epoxy compound, a polyol, and an anhydride and/or a diacid and (2) a second epoxy compound; (b) rubber particles having a core/shell structure and/or graphenic carbon particles; and (c) a second component that chemically reacts with the first component at ambient or slightly thermal conditions. Also disclosed herein are compositions including (a) an epoxy-capped flexibilizer; (b) a heat-activated latent curing agent; and optionally (c) rubber particles having a core/shell structure and/or graphenic carbon particles; (d) an epoxy/CTBN adduct; and/or (e) an epoxy/dimer acid adduct. The heat-activated latent curing agent may include at least one reaction product of reactants including an epoxy compound and an amine and/or an alkaloid.
    Type: Application
    Filed: March 17, 2022
    Publication date: July 7, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
  • Publication number: 20220204822
    Abstract: Disclosed herein are compositions including (a) a first component comprising (1) an epoxy-adduct that is the reaction product of reactants comprising a first epoxy compound, a polyol, and an anhydride and/or a diacid and (2) a second epoxy compound; (b) rubber particles having a core/shell structure and/or graphenic carbon particles; and (c) a second component that chemically reacts with the first component at ambient or slightly thermal conditions. Also disclosed herein are compositions including (a) an epoxy-capped flexibilizer; (b) a heat-activated latent curing agent; and optionally (c) rubber particles having a core/shell structure and/or graphenic carbon particles; (d) an epoxy/CTBN adduct; and/or (e) an epoxy/dimer acid adduct. The heat-activated latent curing agent may include at least one reaction product of reactants including an epoxy compound and an amine and/or an alkaloid.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
  • Publication number: 20220204823
    Abstract: Disclosed herein are compositions including (a) a first component comprising (1) an epoxy-adduct that is the reaction product of reactants comprising a first epoxy compound, a polyol, and an anhydride and/or a diacid and (2) a second epoxy compound; (b) rubber particles having a core/shell structure and/or graphenic carbon particles; and (c) a second component that chemically reacts with the first component at ambient or slightly thermal conditions. Also disclosed herein are compositions including (a) an epoxy-capped flexibilizer; (b) a heat-activated latent curing agent; and optionally (c) rubber particles having a core/shell structure and/or graphenic carbon particles; (d) an epoxy/CTBN adduct; and/or (e) an epoxy/dimer acid adduct. The heat-activated latent curing agent may include at least one reaction product of reactants including an epoxy compound and an amine and/or an alkaloid.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
  • Publication number: 20220073783
    Abstract: A hydroxy functional alkyl polyurea is disclosed having the formula presented in claim 1, wherein R comprises an isocyanurate moiety, biuret moiety, allophonate moiety, glycoluril moiety, benzoguanamine moiety, polyetheramine moiety, and/or polymeric moiety different from a polyetheramine and having an Mn of 500 or greater; wherein each RI is independently a hydrogen, alkyl having at least 1 carbon, or a hydroxy functional alkyl having 2 or more carbons and at least one R1 is a hydroxy functional alkyl having 2 or more carbons; and n is 2-6.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Inventors: Shanti Swarup, Hongying Zhou, Anthony M. Chasser, Edward R. Millero, JR., Christopher P. Kurtz, John M. Dudik, Xiangling Xu, William Retsch, Tien-Chieh Chao, Benjamin Kabagambe, Ronald Kralic
  • Patent number: 11242427
    Abstract: An adhesive composition is disclosed. The adhesive composition comprises an epoxy-containing component; rubber particles having a core-shell structure; and a curing component comprising a mixture of an amine-containing compound substantially free of hydroxyl functional groups and a polymeric phenol-containing compound, wherein the amine-containing compound comprises primary and/or secondary amino groups, and wherein the curing component chemically reacts with the epoxy-containing component upon activation from an external energy source. Also disclosed are methods of preparing the adhesive composition and for forming a bonded substrate with the adhesive composition. Further disclosed are curing components for an adhesive composition and methods of making the curing components.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: February 8, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Masayuki Nakajima, Hongying Zhou, Tien-Chieh Chao, Shanti Swarup
  • Patent number: 11203701
    Abstract: A hydroxy functional alkyl polyurea is disclosed having the formula presented in claim 1, wherein R comprises an isocyanurate moiety, biuret moiety, allophonate moiety, glycoluril moiety, benzoguanamine moiety, polyetheramine moiety, and/or polymeric moiety different from a polyetheramine and having an Mn of 500 or greater; wherein each R1is independently a hydrogen, alkyl having at least 1 carbon, or a hydroxy functional alkyl having 2 or more carbons and at least one R1 is a hydroxy functional alkyl having 2 or more carbons; and n is 2-6.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 21, 2021
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Shanti Swarup, Hongying Zhou, Anthony M. Chasser, Edward R. Millero, Jr., Christopher P. Kurtz, John M. Dudik, Xiangling Xu, William H. Retsch, Jr., Tien-Chieh Chao, Benjamin Kabagambe, Jr., Ronald Kralic
  • Publication number: 20210198538
    Abstract: Disclosed herein are compositions including (a) a first component comprising (1) an epoxy-adduct that is the reaction product of reactants comprising a first epoxy compound, a polyol, and an anhydride and/or a diacid and (2) a second epoxy compound; (b) rubber particles having a core/shell structure and/or graphenic carbon particles; and (c) a second component that chemically reacts with the first component at ambient or slightly thermal conditions. Also disclosed herein are compositions including (a) an epoxy-capped flexibilizer; (b) a heat-activated latent curing agent; and optionally (c) rubber particles having a core/shell structure and/or graphenic carbon particles; (d) an epoxy/CTBN adduct; and/or (e) an epoxy/dimer acid adduct. The heat-activated latent curing agent may include at least one reaction product of reactants including an epoxy compound and an amine and/or an alkaloid.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
  • Patent number: 10947428
    Abstract: Disclosed herein are compositions including (a) a first component comprising (1) an epoxy-adduct that is the reaction product of reactants comprising a first epoxy compound, a polyol, and an anhydride and/or a diacid and (2) a second epoxy compound; (b) rubber particles having a core/shell structure and/or graphenic carbon particles; and (c) a second component that chemically reacts with the first component at ambient or slightly thermal conditions. Also disclosed herein are compositions including (a) an epoxy-capped flexibilizer; (b) a heat-activated latent curing agent; and optionally (c) rubber particles having a core/shell structure and/or graphenic carbon particles; (d) an epoxy/CTBN adduct; and/or (e) an epoxy/dimer acid adduct. The heat-activated latent curing agent may include at least one reaction product of reactants including an epoxy compound and an amine and/or an alkaloid.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 16, 2021
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
  • Patent number: 10723913
    Abstract: Compositions comprising hydroxy functional alkyl polyureas are disclosed.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 28, 2020
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Hongying Zhou, Shanti Swarup, Anthony M. Chasser, Edward R. Millero, Jr., John R. Schneider, Tien-Chieh Chao, Christopher P. Kurtz, Xiangling Xu, John M. Dudik, William H. Retsch, Jr., Benjamin Kabagambe, Ronald Kralic
  • Publication number: 20190330502
    Abstract: An adhesive composition comprising an epoxy compound and a compound comprising at least one aminimide functional group is disclosed. The compound comprising the at least one aminimide functional group is present in an amount from 2-8% by weight based on total weight of the adhesive composition and reacts with the epoxy compound upon activation by an external energy source. The adhesive composition also may comprise an amidine salt.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 31, 2019
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
  • Publication number: 20190300644
    Abstract: Disclosed herein are methods of preparing an aminimide. An epoxy compound is reacted with a hydrazine compound comprising a trivalent nitrogen, and an anhydride functional material or a cyclic compound containing a carbonyl group and at least one heteroatom alpha to the carbonyl group at a temperature greater than 20° C. to form the aminimide. At least one of the epoxy compound and the anhydride functional material or the cyclic compound is polymeric.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 3, 2019
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Hongying Zhou, Masayuki Nakajima, Shanti Swarup, Tien-Chieh Chao
  • Patent number: 10377928
    Abstract: An adhesive composition comprising an epoxy compound and a compound comprising at least one aminimide functional group is disclosed. The compound comprising the at least one aminimide functional group is present in an amount from 2-8% by weight based on total weight of the adhesive composition and reacts with the epoxy compound upon activation by an external energy source. The adhesive composition also may comprise an amidine salt.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 13, 2019
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
  • Patent number: 10351661
    Abstract: Disclosed herein are methods of preparing an aminimide. An epoxy compound is reacted with a hydrazine compound comprising a trivalent nitrogen, and an anhydride functional material or a cyclic compound containing a carbonyl group and at least one heteroatom alpha to the carbonyl group at a temperature greater than 20° C. to form the aminimide. At least one of the epoxy compound and the anhydride functional material or the cyclic compound is polymeric.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 16, 2019
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Hongying Zhou, Masayuki Nakajima, Shanti Swarup, Tien-Chieh Chao
  • Publication number: 20190016917
    Abstract: A hydroxy functional alkyl polyurea is disclosed having the formula presented in claim 1, wherein R comprises an isocyanurate moiety, biuret moiety, allophonate moiety, glycoluril moiety, benzoguanamine moiety, polyetheramine moiety, and/or polymeric moiety different from a polyetheramine and having an Mn of 500 or greater; wherein each R1is independently a hydrogen, alkyl having at least 1 carbon, or a hydroxy functional alkyl having 2 or more carbons and at least one R1 is a hydroxy functional alkyl having 2 or more carbons; and n is 2-6.
    Type: Application
    Filed: January 13, 2017
    Publication date: January 17, 2019
    Inventors: Shanti Swarup, Hongying Zhou, Anthony M. Chasser, Edward R. Millero, Jr., Christopher P. Kurtz, John M. Dudik, Xiangling Xu, William H. Retsch, Jr., Tien-Chieh Chao, Benjamin Kabagambe, Jr., Ronald Kralic
  • Publication number: 20190016918
    Abstract: Compositions comprising hydroxy functional alkyl polyureas are disclosed.
    Type: Application
    Filed: January 13, 2017
    Publication date: January 17, 2019
    Inventors: Hongying Zhou, Shanti Swarup, Anthony M. Chasser, Edward R. Millero, JR., John R. Schneider, Tien-Chieh Chao, Christopher P. Kurtz, Xiangling Xu, John M. Dudik, William H. Retsch, JR., Benjamin Kabagambe, Ronald Kralic
  • Patent number: 10100216
    Abstract: A coating composition having a measured solids content of at least 95% according to test method ASTM D2369 is disclosed. The composition includes a mixture of (a) a polymer prepared from one or more functional monomers having a (meth)acrylic monomer, an allyl monomer, or combinations thereof each having an ethylenically unsaturated double bond and an additional reactive functional group, and (b) a reactive diluent. At least some of the additional reactive functional group of the functional monomer remains unreacted during formation of the polymer. The reactive diluent has at least one ethylenically unsaturated functional group, no additional functionality, and a boiling point of greater than 100° C. The ethylenically unsaturated functional group of the reactive diluent and the additional reactive functional group remaining within the polymer do not react. Also disclosed are coatings formed from the cured coating composition and methods for providing sound and vibration damping through a substrate.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: October 16, 2018
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tien-Chieh Chao, Wei Wang, Peter Votruba-Drzal