Patents by Inventor Walter Gotz

Walter Gotz 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).

  • Patent number: 9206315
    Abstract: The instant invention includes an article and a method of forming the article. The article includes a mixture of a thermoplastic polyurethane and polyamide 6/66 copolymer. The thermoplastic polyurethane has a Shore Hardness of at least 36D as determined using DIN EN ISO 1183-1.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: December 8, 2015
    Assignee: BASF SE
    Inventors: Manoranjan Prusty, Axel Wilms, Eric S. Noon, Walter Gotz, Gulay Serhatkulu, Elke Marten
  • Publication number: 20120055576
    Abstract: The instant invention includes an article and a method of forming the article. The article includes a mixture of a thermoplastic polyurethane and polyamide 6/66 copolymer. The thermoplastic polyurethane has a Shore Hardness of at least 36D as determined using DIN EN ISO 1183-1.
    Type: Application
    Filed: December 16, 2009
    Publication date: March 8, 2012
    Inventors: Manoranjan Prusty, Axel Wilms, Eric S. Noon, Walter Gotz, Gulay Serhatkulu, Elke Marten
  • Patent number: 6455612
    Abstract: This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die assembly having a thin-plate assembly and injecting at least one additive into at least one predetermined location in a cross-section of the melt flow of the polymeric host material while the melt flow passes through the die assembly. The method achieves uniform dosing of the one or more additives in the extrusion direction in the polymeric host material without homogeneously mixing the one or more additives and the polymeric host material. The apparatus for directly injecting one or more additives into a polymer melt stream comprises a pumping system, a die assembly having a thin-plate assembly, and a distribution line.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: September 24, 2002
    Assignee: BASF Corporation
    Inventors: Charles F. Helms, Jr., Dominick A. Burlone, James L. Huff, Thomas Kessler, Herman Brandt, Walter Gotz, Jürgen Hofmann
  • Patent number: 6391239
    Abstract: This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die assembly having a thin-plate assembly and injecting at least one additive into at least one predetermined location in a cross-section of the melt flow of the polymeric host material while the melt flow passes through the die assembly. The method achieves uniform dosing of the one or more additives in the extrusion direction in the polymeric host material without homogeneously mixing the one or more additives and the polymeric host material. The apparatus for directly injecting one or more additives into a polymer melt stream comprises a pumping system, a die assembly having a thin-plate assembly, and a distribution line.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: May 21, 2002
    Assignee: BASF Corporation
    Inventors: Charles F. Helms, Jr., Dominick A. Burlone, James L. Huff, Thomas Kessler, Herman Brandt, Walter Gotz, Jürgen Hofmann
  • Patent number: 6289928
    Abstract: This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die assembly having a thin-plate assembly and injecting at least one additive into at least one predetermined location in a cross-section of the melt flow of the polymeric host material while the melt flow passes through the die assembly. The method achieves uniform dosing of the one or more additives in the extrusion direction in the polymeric host material without homogeneously mixing the one or more additives and the polymeric host material. The apparatus for directly injecting one or more additives into a polymer melt stream comprises a pumping system, a die assembly having a thin-plate assembly, and a distribution line.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: September 18, 2001
    Assignee: BASF Corporation
    Inventors: Charles F. Helms, Jr., Dominick A. Burlone, James L. Huff, Thomas Kessler, Herman Brandt, Walter Gotz, Jürgen Hofmann
  • Patent number: 5986006
    Abstract: Homo- or copolymers A composed ofA.sub.1) 40-100% by weight of monomers of the general formula I ##STR1## A.sub.2) 0-60% by weight of monomers of the general formula II ##STR2## and A.sub.3) 0-10% by weight of further monomers capable of free radical polymerization,the percentages by weight of the monomers A.sub.1) to A.sub.3) summing to 100% andR.sup.1 and R.sup.4 being identical or different radicals and each being hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.2, R.sup.3, R.sup.5, R.sup.6 being identical or different radicals and each being hydrogen or C.sub.1 -C.sub.4 -alkyl,with the proviso that at least two radicals from the group consisting of R.sup.1, R.sup.2 and R.sup.3 and from the group consisting of R.sup.4, R.sup.5 and R.sup.6 are hydrogen, andR.sup.7 is alkyl, cycloalkyl, aryl or aralkyl,are used as branching agents for amino-containing thermoplastic polymers.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: November 16, 1999
    Assignee: BASF Aktiengsellschaft
    Inventors: Alexander Gluck, Walter Gotz, Gregor Ley
  • Patent number: 5959069
    Abstract: Polyamides are built up from, as fundamental building blocks (a), lactams or aminocarboxylic acids or mixtures of these,as fundamental building blocks (b), from 1 to 50 .mu.mol of at least tribasic amines or carboxylic acids per gram of polyamide,as fundamental building blocks (c), dibasic carboxylic acids or amines andas fundamental building blocks (d), monobasic carboxylic acids or amines,where (c) and (d) are carboxylic acids if (b) are amines, and (c) and (d) are amines if (b) are carboxylic acids,the equivalents ratio of the functional groups of (b) to the functional groups of (c) and (d) together is from 60:40 to 40:60 andthe equivalents ratio of the functional groups of (c) to the functional groups of (d) is from 15:85 to 60:40.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: September 28, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Gluck, Walter Gotz, Stefan Grutke, Martin Laun, Volker Warzelhan
  • Patent number: 5468530
    Abstract: High molecular weight thermoplastic molding materials are obtainable by mixingA) 20-80% by weight of a polyphenylene ether andB) 0-70% by weight of conventional additives and processing assistantsinto a melt ofc) 10-80% by weight of a low molecular weight polyamide having a viscosity number of from 40 to 185 ml/gand subsequently carrying out solid-phase postcondensation.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: November 21, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Gotz, Axel Gottschalk