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).
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Publication number: 20240343955Abstract: 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: ApplicationFiled: June 27, 2024Publication date: October 17, 2024Applicant: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 12049574Abstract: 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: GrantFiled: March 17, 2022Date of Patent: July 30, 2024Assignee: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 12043768Abstract: 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: GrantFiled: March 17, 2022Date of Patent: July 23, 2024Assignee: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 12031064Abstract: 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: GrantFiled: March 17, 2022Date of Patent: July 9, 2024Assignee: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Publication number: 20230279277Abstract: 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: ApplicationFiled: April 28, 2023Publication date: September 7, 2023Applicant: PPG Industries Ohio, Inc.Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
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Patent number: 11674062Abstract: 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: GrantFiled: July 10, 2019Date of Patent: June 13, 2023Assignee: PPG Industries Ohio, Inc.Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
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Patent number: 11629276Abstract: 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: GrantFiled: March 11, 2021Date of Patent: April 18, 2023Assignee: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 11518844Abstract: 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: GrantFiled: June 18, 2019Date of Patent: December 6, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Hongying Zhou, Masayuki Nakajima, Shanti Swarup, Tien-Chieh Chao
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Publication number: 20220213362Abstract: 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: ApplicationFiled: March 17, 2022Publication date: July 7, 2022Applicant: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Publication number: 20220204822Abstract: 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: ApplicationFiled: March 17, 2022Publication date: June 30, 2022Applicant: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Publication number: 20220204823Abstract: 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: ApplicationFiled: March 17, 2022Publication date: June 30, 2022Applicant: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Publication number: 20220073783Abstract: 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: ApplicationFiled: November 18, 2021Publication date: March 10, 2022Inventors: 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
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Patent number: 11242427Abstract: 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: GrantFiled: October 20, 2015Date of Patent: February 8, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Masayuki Nakajima, Hongying Zhou, Tien-Chieh Chao, Shanti Swarup
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Patent number: 11203701Abstract: 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: GrantFiled: January 13, 2017Date of Patent: December 21, 2021Assignee: 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
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Publication number: 20210198538Abstract: 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: ApplicationFiled: March 11, 2021Publication date: July 1, 2021Applicant: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 10947428Abstract: 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: GrantFiled: December 7, 2015Date of Patent: March 16, 2021Assignee: PPG Industries Ohio, Inc.Inventors: Umesh C. Desai, Tien-Chieh Chao, Masayuki Nakajima, Kaliappa G. Ragunathan
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Patent number: 10723913Abstract: Compositions comprising hydroxy functional alkyl polyureas are disclosed.Type: GrantFiled: January 13, 2017Date of Patent: July 28, 2020Assignee: 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
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Publication number: 20190330502Abstract: 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: ApplicationFiled: July 10, 2019Publication date: October 31, 2019Applicant: PPG Industries Ohio, Inc.Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai
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Publication number: 20190300644Abstract: 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: ApplicationFiled: June 18, 2019Publication date: October 3, 2019Applicant: PPG Industries Ohio, Inc.Inventors: Hongying Zhou, Masayuki Nakajima, Shanti Swarup, Tien-Chieh Chao
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Patent number: 10377928Abstract: 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: GrantFiled: December 10, 2015Date of Patent: August 13, 2019Assignee: PPG Industries Ohio, Inc.Inventors: Tien-Chieh Chao, Masayuki Nakajima, Hongying Zhou, Shanti Swarup, Umesh C. Desai