Patents by Inventor Gaetano Ladelfa

Gaetano Ladelfa 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: 20130211142
    Abstract: Disclosed are halogenated diethyltoluenediamines of formula wherein either R1 is an amino group and R2 is chlorine or bromine, or R2 is an amino group and R1 is chlorine or bromine, and isomeric mixtures thereof. The halogenated diethyltoluenediamines of formula I are useful as chain extenders for polyurethanes and hardeners for epoxy resins having a relatively long gel time.
    Type: Application
    Filed: October 11, 2011
    Publication date: August 15, 2013
    Applicant: LONZA LTD.
    Inventors: Stefan Ellinger, Gaetano Ladelfa, Constanze Mueller