Patents by Inventor Simone Bitter

Simone Bitter 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).

  • Compositions containing highly viscous polyisocyanates
    Patent number: 6627726
    Abstract: The invention provides a composition for producing surface coatings combining improved hardness, scratch resistance and acid resistance with good reflow behavior, a process for preparing such a surface coating, and for the use of polyisocyanatoisocyanurates having a functionality of more than 3.5 and a viscosity at 23° C. of more than 3500 to produce surface coatings.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: September 30, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Günter Mohrhardt, Hans Renz, Ulrich Poth, Hubert Baumgart, Simone Bitter
  • Polyisocyanates with allophanate groups derived from alicyclic alkanediols
    Patent number: 6566481
    Abstract: A polyisocyanate of formula (I) OCN—R1—[—NX—CO—O—R2—O—CO—NH—R1—]n—NCO in which the units R1, X and R2 have the meanings: R1 is a unit of the formula (II): —CH2—CH2—CH2—CH2—CH2—CH2—  (II) X is hydrogen or a unit of the formula (III): —CO—NH—R1—NCO  (III), with the proviso that at least one of the units X in the polyisocyanates is a unit of formula (III); and R2 • is a 4-, 5- or 6-membered cycloalkylene group containing radical.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: May 20, 2003
    Assignees: BASF Aktiengesellschaft, BASF Coatings AG
    Inventors: Bernd Bruchmann, Hans Renz, Günter Mohrhardt, Hubert Baumgart, Simone Bitter
  • Polyisocyanates with allophanate groups derived from alicyclic alkanediols
    Publication number: 20010034429
    Abstract: Polyisocyanates of the formula (I) (polyisocyanate I),
    Type: Application
    Filed: January 26, 2001
    Publication date: October 25, 2001
    Applicant: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Hans Renz, Gunter Mohrhardt, Hubert Baumgart, Simone Bitter