Patents by Inventor Douglas P. Freyberger

Douglas P. Freyberger 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).

  • Polyurethane foams made with blowing catalyst compositions containing primary hydroxyl groups and high ethylenediamine backbones
    Patent number: 9309346
    Abstract: A method is provided for preparing polyurethane foams, which comprises contacting at least one organic isocyanate compound, at least one polyol, at least one blowing agent, and a tertiary amine catalyst composition. The catalyst composition has the general formula wherein R1, R2, and Y are, independently, an alkyl group having from one to three carbon atoms or —CH2CH2OH; Z is —CH2CH2OH; and n is an integer from 3 to 7, inclusive. Also provided is a method for catalyzing the reaction between at least one isocyanate compound and at least one active hydrogen-containing compound, such as a polyol and/or a blowing agent.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 12, 2016
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Juan Jesus Burdeniuc, Douglas P. Freyberger
  • Polyurethane Foams Made with Blowing Catalyst Compositions Containing Primary Hydroxyl Groups and High Ethylenediamine Backbones
    Publication number: 20100240783
    Abstract: A method is provided for preparing polyurethane foams, which comprises contacting at least one organic isocyanate compound, at least one polyol, at least one blowing agent, and a tertiary amine catalyst composition. The catalyst composition has the general formula wherein R1, R2, and Y are, independently, an alkyl group having from one to three carbon atoms or —CH2CH2OH; Z is —CH2CH2OH; and n is an integer from 3 to 7, inclusive. Also provided is a method for catalyzing the reaction between at least one isocyanate compound and at least one active hydrogen-containing compound, such as a polyol and/or a blowing agent.
    Type: Application
    Filed: May 27, 2010
    Publication date: September 23, 2010
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Juan Jesus Burdeniuc, Douglas P. Freyberger