Patents by Inventor Jurgen Krockenberger

Jurgen Krockenberger 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).

  • 4-formylamino-N-methylpiperidine derivatives, the use thereof as stabilizers and organic material stabilized therewith
    Patent number: 6737527
    Abstract: The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: May 18, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Sylke Haremza, Jürgen Krockenberger, Manfred Appel, Hubert Trauth, Alexander Aumüller
  • 4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith
    Publication number: 20030083406
    Abstract: The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) 1
    Type: Application
    Filed: September 27, 2002
    Publication date: May 1, 2003
    Inventors: Sylke Haremza, Jurgen Krockenberger, Manfred Appel, Hubert Trauth, Alexander Aumuller
  • Stabilizer composition
    Patent number: 6492442
    Abstract: Described is a stabilizer composition comprising a 3-arylacrylic ester, a polymeric compound having a molecular weight of at least 2000 which carries, on a polymeric framework, side groups having secondary amine functions, all substituents positioned to the amine nitrogen being other than hydrogen, a chroman derivative, and an organic phosphite and/or phosphonite. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane against light, oxygen and heat.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: December 10, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Appel, Hubert Trauth, Jürgen Krockenberger, Alexander Aumüller
  • Stabilized polymer dispersions or polymer solutions, and prepared polymers obtainable therefrom
    Patent number: 6214929
    Abstract: A polymer is obtained by removing the medium from a polymer dispersion or polymer solution containing at least one polymeric phase and at least one stabilizer suitable to protect against the damaging effect of light, heat and/or oxidation.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: April 10, 2001
    Assignee: BASF Aktiengesellscaft
    Inventors: Sylke Haremza, Jürgen Krockenberger, Manfred Appel, Hubert Trauth, Joachim Pakusch, Heinrich Sack
  • Stabilizer mixture of chroman derivatives and inert organic solvents, and microcapsules containing this stabilizer mixture
    Patent number: 5837759
    Abstract: The stabilizer mixture comprises(a) one or more chroman derivatives of the formula I ##STR1## where R.sup.1 is ##STR2## in which Z is C.sub.7 - to C.sub.30 -alkyl, --CH.sub.2 CH.sub.2 --S--(C.sub.1 - to C.sub.30 -alkyl) or ##STR3## and (b) an inert organic solvent for the chroman derivatives I from the group consisting of aliphatic, cycloaliphatic or aromatic hydrocarbons or halogenated hydrocarbons, silicone oils and vegetable and animal fats,where components (a) and (b) are in a weight ratio of from 99:1 to 1:99.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: November 17, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Hubert Trauth, Jurgen Krockenberger, Ekkehard Jahns, Ralf Biastoch
  • 3-arylacrylic acid ester light-protection stabilizers for organic material
    Patent number: 5821292
    Abstract: The use of 3-arylacrylic esters I ##STR1## where Ar is an aryl radical which can additionally carry substituents,R.sup.1 is the residue of an n-hydric aliphatic polyol having up to 20 carbon atoms, where the carbon chain can be interrupted by up to 9 non-adjacent oxygen atoms, or of an n-hydric cyclo-aliphatic polyol having 5 to 20 carbon atoms in which ring carbon atoms can also be replaced by non-adjacent oxygen atoms,R.sup.2 and R.sup.3 are hydrogen or C.sub.1 --C.sub.4 -alkyl, andn is a number from l to 10,as stabilizers, in particular against the action of light, for non-living organic material.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: October 13, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Aumuller, Martin Holderbaum, Wolfgang Goetze, Jurgen Krockenberger, Hubert Trauth
  • Stabilizer mixture composed of chroman derivatives, organic phosphites or phosphonites and amines
    Patent number: 5807504
    Abstract: Stabilizer mixture for organic material, in particular for plastics, comprising(a) one or more chroman derivatives of the general formula I ##STR1## (b) one or more organic phosphites of the general formula II ##STR2## or an organic phosphonite of the formula III ##STR3## or mixtures of the phosphites II and the phosphonite III and c) one or more amines of the general formula IV ##STR4## where the components (a) and (b) are present in the ratio of from 1:5 to 1:14 by weight and the component (c) is present in an amount of from 0.01 to 2.0% of the weight of (a)+(b) in the stabilizer mixture.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 15, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Jurgen Krockenberger, Wolfgang Goetze, Hubert Trauth, Alexander Aumuller