Patents by Inventor Birgit Magg

Birgit Magg 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).

  • Process for preparing polyurethanes
    Patent number: 8592497
    Abstract: The invention relates to a process for the preparation of polyurethanes by reacting polyisocyanates a) with compounds having at least two hydrogen atoms reactive with isocyanate groups b), wherein a polyisocyanate a) used is at least one polyisocyanate ai) having an average functionality of greater than 2, a content of diisocyanates of not more than 2% by weight and a content of uretonimines of not more than 4% by weight, based in each case on the weight of the polyisocyanate ai).
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: November 26, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Juergen Reese, Imbridt Murrar, Ralf Fritz, Andres Cabrera, Birgit Magg
  • POLYPHENYLENEPOLYMETHYLENE POLYISOCYANATE AND ITS USE FOR PRODUCING POLYURETHANE FOAMS
    Publication number: 20100076101
    Abstract: The invention relates to polyphenylenepolymethylene polyisocyanates (B) comprising (B1) the 2-ring product of polyphenylenepolymethylene polyisocyanate (B2) the 3-ring product of polyphenylenepolymethylene polyisocyanate (B3) the 4-ring product of polyphenylenepolymethylene polyisocyanate (B4) the 5-ring product of polyphenylenepolymethylene polyisocyanate, wherein the constituents (B2), (B3) and (B4) are, at a content of (B1) of up to 55% by weight, based on the weight of (B), present in a weight ratio of (B2):(B3):(B4) of 8±4:3.5±1.8:1.2±0.9 and the component (B) comprises at least 85% by weight, based on the weight of the component (B), of the constituents (B1), (B2), (B3) and (B4).
    Type: Application
    Filed: November 12, 2007
    Publication date: March 25, 2010
    Applicant: BASF SE
    Inventors: Hans-Juergen Reese, Imbridt Murrar, Ralf Fritz, Andres Cabrera, Birgit Magg, Baerbel Guschel
  • PROCESS FOR PREPARING POLYURETHANES
    Publication number: 20090253819
    Abstract: The invention relates to a process for the preparation of polyurethanes by reacting polyisocyanates a) with compounds having at least two hydrogen atoms reactive with isocyanate groups b), wherein a polyisocyanate a) used is at least one polyisocyanate ai) having an average functionality of greater than 2, a content of diisocyanates of not more than 2% by weight and a content of uretonimines of not more than 4% by weight, based in each case on the weight of the polyisocyanate ai).
    Type: Application
    Filed: April 3, 2007
    Publication date: October 8, 2009
    Applicant: BASF SE
    Inventors: Hans-Jürgen Reese, Imbridt Murrar, Ralf Fritz, Andres Cabrera, Birgit Magg