Patents by Inventor Athina Kerkaidou

Athina Kerkaidou 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).

  • Composition containing modified bisphenol F
    Patent number: 11479631
    Abstract: The invention relates to a composition that contains a binary mixture of bisphenol F and propoxylated bisphenol F. The aim of the invention is to provide aromatic polyols for preparing polyurethane-based and polyisocyanurate-based polymers, which ensure good handling from a technical point of view and good miscibility with the isocyanate component and render the end product flameproof. For this purpose, the invention devises a composition, which contains a binary mixture of ethoxylated bisphenol F and propoxylated bisphenol F in a weight ratio of 20:80 to 80:20.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: October 25, 2022
    Inventors: Stephan Schröter, Pravin Kukkala, Ganapathy Viswanathan, Anthony Maiorana, Athina Kerkaidou
  • MODIFIED ARYLHYDROXY COMPOUNDS FOR THE PRODUCTION OF POLYURETHANE OR POLYISOCYANURATE
    Publication number: 20220135731
    Abstract: Esterified arylhydroxy compounds for the production of polyurethane or polyisocyanurate. In order to provide aromatic polyols for the production of polyurethanes or polyisocyanurates which are process-technically suitable in terms of their viscosity and at the same time give the end product good physical properties and a good reaction to fire, esterified arylhydroxy compounds are proposed as polyols.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Applicant: Hexion GmbH
    Inventors: Stephan Schröter, Athina Kerkaidou, Ganapathy Viswanathan, Luca Basilissi
  • COMPOSITION CONTAINING MODIFIED BISPHENOL F
    Publication number: 20210230342
    Abstract: The invention relates to a composition that contains a binary mixture of bisphenol F and propoxylated bisphenol F. The aim of the invention is to provide aromatic polyols for preparing polyurethane-based and polyisocyanurate-based polymers, which ensure good handling from a technical point of view and good miscibility with the isocyanate component and render the end product flameproof. For this purpose, the invention devises a composition, which contains a binary mixture of ethoxylated bisphenol F and propoxylated bisphenol F in a weight ratio of 20:80 to 80:20.
    Type: Application
    Filed: May 28, 2019
    Publication date: July 29, 2021
    Inventors: Stephan SCHRÖTER, Pravin KUKKALA, Ganapathy VISWANATHAN, Anthony MAIORANA, Athina KERKAIDOU
  • Resols, process for their production and use
    Patent number: 6372878
    Abstract: Resols modified with organic phosphonic acids and/or phosphinic acids or their alkali and/or alkaline-earth metal salts obtained by reacting phenolic compounds and aldehyde in an alkaline medium in a molar ratio of the phenolic compounds to the aldehyde in a range from 1:0.3 to 1:6, with the reaction mixture comprising 0.1 to 10 percent by weight of at least one organic phosphonic acids and/or phosphinic acids or their alkali and/or alkaline-earth metal salts.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: April 16, 2002
    Assignee: Bakelite AG
    Inventors: Sonja Wernik, H. Juergen Dern, Athina Kerkaidou, Stephan Schroeter