Patents by Inventor Dieter Rempel

Dieter Rempel 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).

  • Impact-resistant thermoplastic polyester compositions of low melt viscosity, process for their preparation, and their use for the production of mouldings
    Patent number: 4749755
    Abstract: Polyalkylene terephthalates which contain small quantities of aliphatic polycarbonate show improved fracture behavior, without a significant adverse effect on the strength and the flowability in the melt. Moreover, the compositions show improved behavior in hot-air ageing.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: June 7, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Norbert Schon, Wolfgang Richter, Rudolf Binsack, Karl-Heinz Kohler, Dieter Rempel
  • Thermoplastic moulding compositions based on polyalkylene terephthalate and polymer and a process for the production thereof
    Patent number: 4666972
    Abstract: Polyalkylene terephthalates which contain a fluorinated polyolefin in addition to a polymer having a glass transition temperature of less than -30.degree. C., are very tough, exhibit good stability to thermal shaping and hardness, and have a high modulus of elasticity and improved stress/strain behavior.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: May 19, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Kohler, Christian Lindner, Dieter Rempel, Gunter Weber, Karl-Heinz Ott, Rudolph Binsack
  • Thermoplastic polyester moulding compositions which have good impact strength
    Patent number: 4535124
    Abstract: The present invention relates to thermoplastic moulding compositions, which have improved impact strength at low temperature, comprising thermoplastic polyesters, in particular polyalkylene terephthalates, and grafted, partially or highly cross-linked diene rubbers and/or acrylate rubbers having a bimodal rubber particle size distribution.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: August 13, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Binsack, Dieter Rempel, Christian Lindner, Leo Morbitzer
  • Thermoplastic moulding compositions based on polycarbonate, polyalkylene terephthalate and, optionally, one or more polymers
    Patent number: 4515918
    Abstract: Moulding compositions of polycarbonate, polyalkylene terephthalate and, optionally, polymer having a glass transition temperature below -20.degree. C. may be processed to form particularly low-distortion mouldings when the polycarbonate consists at least partly of o,o,o',o'-tetramethyl-besphenol-polycarbonate.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: May 7, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Nouvertne, Volker Serini, Dieter Neuray, Rudolf Binsack, Hans-Georg Gehrke, Dieter Rempel, Sivara Krishnai
  • Thermoplastic moulding compositions of polycarbonate, polyalkylene terephthalate, graft copolymer and polyethylene
    Patent number: 4482672
    Abstract: Moulding compositions of aromatic polycarbonate, polyalkylene terephthalate and a certain graft copolymer which may be processed into mouldings characterized by high multiaxial impact strength, exhibit an increased Vicat B-temperature if they contain a low amount of an ethylene homo- or copolymer.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: November 13, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Neuray, Werner Nouvertne, Rudolf Binsack, Dieter Rempel, Peter R. Muller
  • Ageing-resistant, processing-stable, high strength mixtures based on thermoplastic polyesters
    Patent number: 4446276
    Abstract: A graft polymer is obtained from a completely broken latex of an acrylate rubber which is suspended in water and from copolymerisable monomers, in the absence of a suspending agent, which graft polymer may be distributed in thermoplastic polyesters to form particles having a relatively small average diameter.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: May 1, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Binsack, Christian Lindner, Dieter Rempel, Karl-Heinz Ott
  • Thermoplastic polyester moulding compositions having improved toughness
    Patent number: 4417026
    Abstract: Graft copolymers having a diene rubber core surrounded by at least two different shells improve the impact strength under multi-axial stress of thermoplastic polyester moulding compositions.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: November 22, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Rudolf Binsack, Dieter Rempel, Karl-Heinz Ott
  • Thermoplastic polyester moulding compositions having improved toughness
    Patent number: 4396742
    Abstract: Grafted polyacrylates having a specific composition improve the impact strength under multi-axial stress of thermoplastic polyesters.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: August 2, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Binsack, Christian Lindner, Dieter Rempel
  • High-impact polybutylene terephthalate
    Patent number: 4292233
    Abstract: The toughness of polybutylene terephthalate can be considerably improved by the addition of an ABS-graft copolymer having a relatively high content of graft base and a closely defined particle size; the typical properties of polybutylene terephthalate, such as its high dimensional heat stability, hardness and rigidity, are not substantially reduced. The products show an excellent multiaxial impact strength.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: September 29, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Binsack, Dieter Rempel, Gert Humme, Karl-Heinz Ott
  • Thermoplastic polyester moulding compositions with good toughness properties
    Patent number: 4260690
    Abstract: The toughness of thermoplastic polyesters can essentially be improved by addition of a new type of graft polymers which contain one grafting site for about 400 to 2000 carbon atoms, the average molecular weight M.sub.w of the graft branches being from 2000 to 40,000.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: April 7, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Binsack, Dieter Rempel, Helmut Korber, Dieter Neuray
  • Block copolyesters which crystallize rapidly
    Patent number: 4223106
    Abstract: Polyethylene terephthalate copolymers comprising (I) blocksegments having a glass transition temperature below 0.degree. C. and (II) polyethylene terephthalate segments modified with certain diols having 3 to 10 carbon atoms, have an excellent rate of crystallization and necessitate mould temperatures of below 100.degree. C.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: September 16, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Bier, Rudolf Binsack, Dieter Rempel