Patents by Inventor Stephen Istivan

Stephen Istivan 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: 20260078266
    Abstract: Non or low-intumescent fire-resistant coatings, coating compositions used to form the coatings, and composite articles including the coatings are provided herein. In an embodiment, a non or low-intumescent fire-resistant coating is formed from an aqueous coating composition comprising a polyurethane urea resin, a melamine crosslinker, a silicone resin, and a filler. The non or low-intumescent fire-resistant coating has a thermal conductivity of from about 0.03 W/m-K to about 0.1 W/m-K, as measured using a guarded hot plate apparatus in accordance with ASTM E1530. The coating expands by from about 0.1% to about 10% based on a total volume of the coating, after exposure to a propane flame at a distance of 26 mm from the coating and/or exposure to a temperature of about 1200° C. for a period of at least 10 minutes.
    Type: Application
    Filed: August 18, 2025
    Publication date: March 19, 2026
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Stephen Istivan, Gaurang Bhargava, Delson J. Trindade, Ian Sullivan
  • Publication number: 20250270373
    Abstract: Conductive aqueous dispersions for application as coatings, and methods for producing conductive aqueous dispersions are provided. In an embodiment, a method for producing a conductive aqueous dispersion includes mixing water, solvent, and binder to form a homogenous mixture. Further, the method includes adding carbon nanotubes to the homogenous mixture and mixing at high shear to form the dispersion.
    Type: Application
    Filed: February 24, 2025
    Publication date: August 28, 2025
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Stephen Istivan, Carmen Flosbach, Eric C. Houze, Sylas LaPlante
  • Publication number: 20250145849
    Abstract: Waterborne top coat compositions, processes for preparing such compositions, and methods for forming top coats on substrates are provided. In an embodiment, a waterborne top coat composition includes water, pigment(s) and resin solids. The resin solids comprise about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of an acrylic/(meth)acryl copolymer hybrid binder, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %.
    Type: Application
    Filed: January 9, 2025
    Publication date: May 8, 2025
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Carmen Flosbach, Stephen Istivan, Zoha Al-Badri, Meagan Douple Goff, Katharina Dreger
  • Patent number: 12227664
    Abstract: Waterborne top coat compositions, processes for preparing such compositions, and methods for forming top coats on substrates are provided. In an embodiment, a waterborne top coat composition includes water, pigment(s) and resin solids. The resin solids comprise about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of an acrylic/(meth)acryl copolymer hybrid binder, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: February 18, 2025
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Carmen Flosbach, Stephen Istivan, Zoha al-Badri, Meagan Douple Goff, Katharina Dreger
  • Publication number: 20240376340
    Abstract: Methods for forming top coats include spray-applying a waterborne top coat composition on the substrate to form a top coat layer, wherein the waterborne top coat composition comprises water, pigment(s) and resin solids, the resin solids comprising about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to about 50 mg KOH/g, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %; and curing the top coat layer to form a cured top coat.
    Type: Application
    Filed: July 25, 2024
    Publication date: November 14, 2024
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Carmen Flosbach, Stephen Istivan, Zoha al-Badri, Meagan Douple Goff, Katharina Dreger
  • Publication number: 20220064476
    Abstract: Waterborne top coat compositions, processes for preparing such compositions, and methods for forming top coats on substrates are provided. In an embodiment, a waterborne top coat composition includes water, pigment(s) and resin solids. The resin solids comprise about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of a urethanized polyester/(meth)acryl copolymer hybrid binder having a hydroxyl number of about 30 to about 200 mg KOH/g and a carboxyl number of about 8 to about 50 mg KOH/g, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 3, 2022
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Carmen Flosbach, Stephen Istivan, Zoha al-Badri, Meagan Douple Goff, Katharina Dreger
  • Publication number: 20220064475
    Abstract: Waterborne top coat compositions, processes for preparing such compositions, and methods for forming top coats on substrates are provided. In an embodiment, a waterborne top coat composition includes water, pigment(s) and resin solids. The resin solids comprise about 60 to 100 wt. % of binder solids and 0 to about 40 wt. % of crosslinker solids, the binder solids comprising about 1 to about 40 wt. % of an acrylic/(meth)acryl copolymer hybrid binder, and about 60 to about 99 wt. % of one or more additional binders, the sum of the respective wt. % in each case equaling 100 wt. %.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Applicant: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Carmen Flosbach, Stephen Istivan, Zoha al-Badri