Patents by Inventor Klaus Benker

Klaus Benker 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).

  • Transparent impact-resistant modified thermoplastic molding materials
    Patent number: 6689827
    Abstract: The invention relates to transparent, impact-resistant thermoplastic molding materials containing A) a matrix consisting of at least two different mixture components, B) an impact-resistance modifier, C) an additive, essentially consisting of c1) at least one 2,6-disubstituted phenol, and c21) at least one organic phosphite of general formula (I) P(OR1)n(OAr)3−n, c22 at least one organic phosphite of general formula (IIa) and/or (IIb), or c23) a mixture of compounds in accordance with c21) and c22).
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: February 10, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Schade, Rainer Neumann, Claudia Messinger, Klaus Benker, Armin Kurps
  • Thermoplastic molding materials having good low-temperature impact strength
    Patent number: 5162423
    Abstract: Thermoplastic material comprising:A) 20-80% polycarbonateB) 10-60% styrenic/nitrile copolymerC) 5-30% ABS or MBS with a median particle size of 0.2-0.5 micronsD) 20-60% ASA with a median particle size of 0.4-0.7 microns.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: November 10, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Neumann, Ehrenfried Baumgartner, Klaus Benker, Karl Ruppmich
  • Reinforced colored thermoplastic molding materials based on polyphenylene ethers and polyamides
    Patent number: 5145904
    Abstract: Filler-containing thermoplastic molding materials contain, as essential components,A) from 10 to 84.8% by weight of a thermoplastic polyamide,B) from 10 to 84.8% by weight of a modified polyphenylene ether,C) from 5 to 50% by weight of glass fibers or carbon fibers or a mixture thereof, having a median fiber length 1.sub.50 of from 150 to 400 .mu.m, andD) from 0.2 to 4% by weight of a pigmentand in additionE) from 0 to 4% by weight of a rubber impact modifier,F) from 0 to 20% by weight of a particulate filler which differs from D) andG) from 0 to 20% by weight of a flameproofing agent.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: September 8, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Muehlbach, Peter Steiert, Klaus Benker
  • Thermoplastic molding material based on polycarbonate, ASA and vinylaromatics/an-containing copolymers
    Patent number: 4880875
    Abstract: A thermoplastic molding material containing, based on components A, B and C,A from 10 to 90% by weight of one or more polycarbonates,B from 10 to 50% by weight of one or more graft copolymers,C from 10 to 50% by weight of one or more thermoplastic copolymers containing a vinylaromatic monomer of 8 to 12 carbon atoms and acrylonitrile,wherein component B is composed ofB.sub.1 a first, coarsely divided graft copolymer which has an average particle size of from 200 to 700 nm (d.sub.50 value of cumulative molecular weight distribution) in a proportion of from 30 to 70% by weight, based on B, andB.sub.2 a second, finely divided graft copolymer which has an average particle size of from 50 to 180 nm (d.sub.50 value of cumulative molecular weight distribution) in a proportion of from 70 to 30% by weight, based on B,is used for producing moldings.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: November 14, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Wassmuth, Karl Ruppmich, Erhard Seiler, Hermann Gausepohl, Klaus Benker
  • Thermoplastic molding materials
    Patent number: 4430478
    Abstract: A thermoplastic molding material which contains two graft copolymers in a matrix of a copolymer based on styrene and acrylonitrile. The first graft copolymer (B) comprising a hard phase prepared from one or more vinyl-aromatic monomers and an elastomer phase, the elastomer phase particles having a diameter of from 0.5 to 5 .mu.m. The second graft copolymer (C) comprising a hard phase and an elastomer phase, said elastomer phase having a bimodal particle distribution in which the diameter of one category of particles is from 0.05 to 0.18 .mu.m and the second category of particles has a mean diameter of from 0.25 to 0.6 .mu.m.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: February 7, 1984
    Inventors: Burghard Schmitt, Klaus Benker, Edmund Priebe, Gerhard Lindenschmidt
  • Transparent impact-resistant molding material
    Patent number: 4393164
    Abstract: Transparent, impact-resistant thermoplastic molding materials produced from a rigid methylmethacrylate polymer A, a rigid styrene-acrylonitrile polymer B and a flexible graft copolymer C, made from grafting an alkylmethacrylate and optionally styrene onto a rubber grafting base.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: July 12, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Graham E. McKee, Franz Haaf, Juergen Hambrecht, Klaus Benker, Rudolf Stephan, Hans Breuer