Patents by Inventor Sheau-Hwa Ma

Sheau-Hwa Ma 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).

  • Patent number: 11760832
    Abstract: A polymer includes the reaction product of A, B, and C, and optionally D, wherein: A is a polyepoxide that is: the condensation product of phenol, formaldehyde, and epichlorohydrin; the condensation product of bisphenol A, formaldehyde, and epichlorohydrin; or a combination of said condensation products; B is at least one polyoxyalkylene with a terminal primary amine group wherein each polyoxyalkylene comprises an ethyleneoxy moiety and a propyleneoxy moiety and independently has the following structure: wherein R is a hydrogen atom or a C1-C4 group, and wherein each of x and y is independently from 0 to about 500 and x+y>0; and C is an anchoring compound that is: a secondary amine; a monocarboxylic acid; a cyclic imide; or a combination thereof, and D is an alkylating agent. This polymer is included in a composition that further includes a compound such as a particulate solid.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 19, 2023
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventor: Sheau-hwa Ma
  • Patent number: 11130879
    Abstract: A graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a cyclic amine-containing moiety. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety. Another graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a quaternary ammonium moiety formed from a reaction of an amine-containing moiety and an alkylation agent. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 28, 2021
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventor: Sheau-Hwa Ma
  • Publication number: 20210261719
    Abstract: A polymer includes the reaction product of A, B, and C, and optionally D, wherein: A is a polyepoxide that is: the condensation product of phenol, formaldehyde, and epichlorohydrin; the condensation product of bisphenol A, formaldehyde, and epichlorohydrin; or a combination of said condensation products; B is at least one polyoxyalkylene with a terminal primary amine group wherein each polyoxyalkylene comprises an ethyleneoxy moiety and a propyleneoxy moiety and independently has the following structure: wherein R is a hydrogen atom or a C1-C4 group, and wherein each of x and y is independently from 0 to about 500 and x+y>0; and C is an anchoring compound that is: a secondary amine; a monocarboxylic acid; a cyclic imide; or a combination thereof; and D is an alkylating agent. This polymer is included in a composition that further includes a compound such as a particulate solid.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 26, 2021
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventor: Sheau-hwa Ma
  • Patent number: 10711152
    Abstract: A coating composition for coating a substrate is provided herein. The coating composition includes a first polymer including a first polymer-bound moiety having an acid-functional group, or a derivative thereof. The coating composition further includes a second polymer including a second polymer-bound moiety having an amine-functional group. The coating composition further includes a solvent. The first polymer is substantially free of amine-functional groups and the second polymer is substantially free of acid-functional groups, or derivatives thereof. The acid-functional groups and the amine-functional groups are substantially reactive to each other at least after application of the coating composition to the substrate.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: July 14, 2020
    Assignee: AXALTA COATING SYSTEMS IP CO. LLC
    Inventors: Sheau-Hwa Ma, Neetu Chaturvedi, Yongqing Huang
  • Publication number: 20190203068
    Abstract: A graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a cyclic amine-containing moiety. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety. Another graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a quaternary ammonium moiety formed from a reaction of an amine-containing moiety and an alkylation agent. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 4, 2019
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventor: SHEAU-HWA MA
  • Patent number: 10190000
    Abstract: A method of making a system for producing coating compositions having a predetermined VOC content includes preparing a paint comprising a resin and a solvent and having the predetermined VOC content or less. Temperature adjusters are prepared containing a resin and having the predetermined VOC content or less. Each temperature adjuster includes a different solvent or a different amount of a solvent compared to the others such that each of the coating compositions formed from one of the temperature adjusters is suitable for application within an ambient temperature range based on a rate of evaporation of the solvent within the ambient temperature range. Each temperature adjuster has no less than 1 wt. % solids based on the total weight of the temperature adjuster. The paint and the temperature adjusters are provided together as the system.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: January 29, 2019
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Gary W. Nickel, Renee J. Kelly, Yongqing Huang, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas
  • Patent number: 10077374
    Abstract: A method of making a coating composition includes selecting a temperature adjuster from a plurality of temperature adjusters based on an ambient temperature at which application of the coating composition is to occur. The temperature adjuster contains a resin and a solvent. The resin, the solvent, and/or amounts of the resin and the solvent are based on the ambient temperature. The temperature adjuster contains no less than about 1% solids. The method includes combining a paint with the temperature adjuster. The paint contains a resin and a solvent. The method includes mixing the temperature adjuster and the paint to form the coating composition, wherein the coating composition has no more than a predetermined total VOC content, wherein the predetermined total VOC content is about 1.2 kilograms per liter.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 18, 2018
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Gary W. Nickel, Renee J. Kelly, Yongqing Huang, Sheau-Hwa Ma, Beatriz E. Rodriguez-douglas
  • Publication number: 20180187038
    Abstract: A coating composition for coating a substrate is provided herein. The coating composition includes a first polymer including a first polymer-bound moiety having an acid-functional group, or a derivative thereof. The coating composition further includes a second polymer including a second polymer-bound moiety having an amine-functional group. The coating composition further includes a solvent. The first polymer is substantially free of amine-functional groups and the second polymer is substantially free of acid-functional groups, or derivatives thereof. The acid-functional groups and the amine-functional groups are substantially reactive to each other at least after application of the coating composition to the substrate.
    Type: Application
    Filed: November 6, 2017
    Publication date: July 5, 2018
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: SHEAU-HWA MA, NEETU CHATURVEDI, YONGQING HUANG
  • Patent number: 9605164
    Abstract: Low solids coating compositions having polyurea rheology control agents, methods for making such coating compositions, and systems for making such coating compositions are provided. In accordance with an exemplary embodiment, a coating composition with no more than 30 weight percent nonvolatile content includes a colorant, a polyurea rheology control agent comprising polyurea crystals and a moderating resin, a film forming binder resin, and a solvent.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: March 28, 2017
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Yongqing Huang, Gary W. Nickel, Renee J. Kelly, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas, Brian E. Priore
  • Publication number: 20170081546
    Abstract: A method of making a coating composition includes selecting a temperature adjuster from a plurality of temperature adjusters based on an ambient temperature at which application of the coating composition is to occur. The temperature adjuster contains a resin and a solvent. The resin, the solvent, and/or amounts of the resin and the solvent are based on the ambient temperature. The temperature adjuster contains no less than about 1% solids. The method includes combining a paint with the temperature adjuster. The paint contains a resin and a solvent. The method includes mixing the temperature adjuster and the paint to form the coating composition, wherein the coating composition has no more than a predetermined total VOC content, wherein the predetermined total VOC content is about 1.2 kilograms per liter.
    Type: Application
    Filed: November 30, 2016
    Publication date: March 23, 2017
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Gary W. Nickel, Renee J. Kelly, Yongqing Huang, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas
  • Patent number: 9523018
    Abstract: A method of making a coating composition includes selecting a temperature adjuster from a plurality of temperature adjusters based on an ambient temperature at which application of the coating composition is to occur. The temperature adjuster contains a resin and a solvent. The resin, the solvent, and/or amounts of the resin and the solvent are based on the ambient temperature. The temperature adjuster contains no less than about 1% solids and has no more than a predetermined VOC content. A paint is combined with the temperature adjuster. The paint contains a resin and a solvent and has no more than the predetermined VOC content. The temperature adjuster and the paint are mixed to form the coating composition, wherein the coating composition has no more than the predetermined VOC content.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: December 20, 2016
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Gary W. Nickel, Renee J. Kelly, Yongqing Huang, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas
  • Patent number: 9403986
    Abstract: A pigment dispersant comprising a graft copolymer is described. The graft copolymer comprises a backbone having polymerized vinyl imidazole groups and side chains from macromonomers. The vinyl imidazole comprises 2 percent to 20 percent by weight of the graft copolymer and the macromonomer comprises 55 percent to 85 percent by weight of the graft copolymer. The pigment dispersant is useful for forming pigment dispersions that can be used in solvent borne coating compositions.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: August 2, 2016
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventor: Sheau-Hwa Ma
  • Publication number: 20150175836
    Abstract: The present invention is directed to a solvent borne low bake curable coating composition having improved sag resistance and coatings properties and process for using the same. The composition includes a crosslinkable component having one or more polymers having two or more crosslinkable groups, a crosslinking component comprising one or more crosslinking agents having crosslinking groups; and a low bake temperature control agent that includes a rheology component and polyurea. When a layer of a pot mix resulting from mixing of the crosslinkable and crosslinking components is applied over a substrate, it has high sag resistance while providing desired coating properties, such as high gloss and rapid cure even under low bake cure conditions. The solvent borne coating compositions is well suited for use in automotive refinish applications as well as industrial applications, such as construction and transportation equipment.
    Type: Application
    Filed: September 29, 2014
    Publication date: June 25, 2015
    Inventors: Ayumu Yokoyama, Henry A. Tronco, Jr., Eric C. Houze, Sheau-Hwa Ma, Kurt A. Hankerson, Jose Antonio Garcia, Gary W. Nickel, Delson Jayme Trindade, Monika J. Sienkowska, Jingguo Shen
  • Publication number: 20150175834
    Abstract: The present invention is directed to a solvent borne low bake curable coating composition having improved sag resistance and coatings properties and process for using the same. The composition includes a crosslinkable component having one or more polymers having two or more crosslinkable groups, a crosslinking component comprising one or more crosslinking agents having crosslinking groups; and a low bake temperature control agent that includes a rheology component and polyurea. When a layer of a pot mix resulting from mixing of the crosslinkable and crosslinking components is applied over a substrate, it has high sag resistance while providing desired coating properties, such as high gloss and rapid cure even under low bake cure conditions. The solvent borne coating compositions is well suited for use in automotive refinish applications as well as industrial applications, such as construction and transportation equipment.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Inventors: Ayumu Yokoyama, Henry A. Tronco, JR., Eric C. Houze, Sheau-Hwa Ma, Kurt A. Hankerson, Jose Antonio Garcia, Gary W. Nickel, Delson Jayme Trindade
  • Publication number: 20150105512
    Abstract: A method of making a system for producing coating compositions having a predetermined VOC content includes preparing a paint comprising a resin and a solvent and having the predetermined VOC content or less. Temperature adjusters are prepared containing a resin and having the predetermined VOC content or less. Each temperature adjuster includes a different solvent or a different amount of a solvent compared to the others such that each of the coating compositions formed from one of the temperature adjusters is suitable for application within an ambient temperature range based on a rate of evaporation of the solvent within the ambient temperature range. Each temperature adjuster has no less than 1 wt. % solids based on the total weight of the temperature adjuster. The paint and the temperature adjusters are provided together as the system.
    Type: Application
    Filed: August 25, 2014
    Publication date: April 16, 2015
    Inventors: Gary W. Nickel, Renee J. Kelly, Yongqing Huang, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas
  • Publication number: 20150105511
    Abstract: Low solids coating compositions having polyurea rheology control agents, methods for making such coating compositions, and systems for making such coating compositions are provided. In accordance with an exemplary embodiment, a coating composition with no more than 30 weight percent nonvolatile content includes a colorant, a polyurea rheology control agent comprising polyurea crystals and a moderating resin, a film forming binder resin, and a solvent.
    Type: Application
    Filed: August 25, 2014
    Publication date: April 16, 2015
    Inventors: Yongqing Huang, Gary W. Nickel, Renee J. Kelly, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas, Brian E. Priore
  • Publication number: 20150105513
    Abstract: A method of making a coating composition includes selecting a temperature adjuster from a plurality of temperature adjusters based on an ambient temperature at which application of the coating composition is to occur. The temperature adjuster contains a resin and a solvent. The resin, the solvent, and/or amounts of the resin and the solvent are based on the ambient temperature. The temperature adjuster contains no less than about 1% solids and has no more than a predetermined VOC content. A paint is combined with the temperature adjuster. The paint contains a resin and a solvent and has no more than the predetermined VOC content. The temperature adjuster and the paint are mixed to form the coating composition, wherein the coating composition has no more than the predetermined VOC content.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Inventors: Gary W. Nickel, Renee J. Kelly, Yongqing Huang, Sheau-Hwa Ma, Beatriz E. Rodriguez-Douglas
  • Patent number: 8937129
    Abstract: This invention relates to rapid drying lacquers that are particularly useful for automotive OEM refinish applications. The lacquer includes a novel acrylic triblock copolymer as a replacement material for all or part of the cellulose acetate butyrate binder component. This invention is also directed to a process for producing coatings from the rapid drying lacquers. These lacquers are especially useful in providing chip and humidity resistant coatings, especially metallic effect coatings, having excellent adhesion and down flop or metallic effect.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: January 20, 2015
    Assignee: Axalta Coating Systems IP Co., LLC
    Inventors: Sheau-Hwa Ma, Renee J. Kelly
  • Patent number: 8906461
    Abstract: This invention relates to rapid drying lacquers that are particularly useful for automotive OEM refinish applications. The lacquer includes a novel acrylic triblock copolymer as a replacement material for all or part of the cellulose acetate butyrate binder component. This invention is also directed to a process for producing coatings from the rapid drying lacquers. These lacquers are especially useful in providing chip and humidity resistant coatings, especially metallic effect coatings, having excellent adhesion and down flop or metallic effect.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 9, 2014
    Assignee: Axalta Coating Systems IP Co., LLC
    Inventors: Sheau-Hwa Ma, Renee J. Kelly
  • Patent number: 8865843
    Abstract: The present disclosure is directed to a sag control agent comprising a reaction product of an isocyanate and a fluorinated amine. This disclosure is further directed to a coating composition comprising the sag control agent. This disclosure is also directed to a process of forming a sag-free coating layer on a substrate.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: October 21, 2014
    Assignee: Axalta Coating Systems IP Co., LLC
    Inventors: Rajesh Gopalan Saliya, Ayumu Yokoyama, Sheau-Hwa Ma, Axel Hans-Joachim Herzog