Patents by Inventor Karola Brudermanns

Karola Brudermanns 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).

  • Process for reducing fogging due to plasticizers in plastics
    Patent number: 4913866
    Abstract: Fogging of plastics containing polymer plasticizers is reduced by treating the polymer plasticizers with water vapor in the melt.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: April 3, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Heuser, Lothar Meier, Karola Brudermanns, Otto Billinger, Rolf Kubens
  • Thermoplastic moulding compounds based on polyoxymethylene and polymeric adipatecarbonate mixed esters
    Patent number: 4683267
    Abstract: Moulding compounds consisting of a mixture of (A) from 99.99 to 60 parts, by weight, of a polyoxymethylene; (B) from 0 to 40 parts, by weight, of an elastomer having a softening temperature below the crystallite melting point of polyoxymethylene (A) and a freezing point below 0.degree. C.; and (C) from 0.01 to 40 parts, by weight, of an aliphatic, rubber-like, high molecular weight adipate-carbonate mixed ester.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: July 28, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Karola Brudermanns, Helmut Waniczek, Walter Uerdingen, Helmut Hurnik
  • Process for the production of high molecular weight polyester carbonates
    Patent number: 4533728
    Abstract: Non-aromatic polyester carbonates which have a high molecular weight are obtained if polycondensation is stopped in a reversible manner by the addition of phenol, the phenol is subsequently removed and polycondensation is continued.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: August 6, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Waniczek, Walter Uerdingen, Karola Brudermanns
  • Alkyl sulphonic acid phenyl esters substituted by carboxylic acid esters
    Patent number: 4274991
    Abstract: Alkyl sulphonic acid phenyl esters which are substituted by carboxylic acid esters can be obtained by reacting sulphochlorinated paraffins with hydroxy benzoic acid esters. Said compounds can be used as plasticizers for polymers.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: June 23, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Hinz, Karola Brudermanns
  • Plasticized vinyl chloride polymer
    Patent number: 4272428
    Abstract: A thermoplastic molding composition contains a mixture of 10 to 95% by weight of a vinyl chloride polymer and 90 to 5% by weight of an adipate/carbonate mixed ester which is the transesterification reaction product of an adipate-diol polyester having terminal hydroxyls and a bifunctional carbonic acid aryl ester. The composition has a favorable combination of physical properties which include good cold fracture behavior coupled with easy processability and good ageing characteristics.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: June 9, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Carlhans Suling, Herbert Bartl, Dietrich Hardt, Karola Brudermanns