Patents by Inventor Wilhelm Nickolaus

Wilhelm Nickolaus 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).

  • Preparation of foams having high heat-distortion resistance, and foams based on aromatic polyether ketones
    Patent number: 5084484
    Abstract: Foams of density 0.1 to 1.0 g/cm.sup.3 based on aromatic polyether ketones and other thermoplastic polymers having a high melting point are obtained by melting an intimate mixture of the polymer and from 0.5 to 10% by weight of an aliphatic or aromatic dicarboxylic acid or polycarboxylic acid which suffers a weight loss of 50% or more with elimination of gaseous decomposition products on heating to from 130 to 300.degree. C., and simultaneously cooling and molding the melt.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: January 28, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Eckhard Nintz, Heinz Weber, Wilhelm Nickolaus