Patents by Inventor Guenter Wulff

Guenter Wulff 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).

  • Polymers containing aromatic aldehyde groups
    Patent number: 4315089
    Abstract: Abstract of the disclosure: Novel polymers which have K values of from 20 to 140 and which contain structural units of the general formula--CH.sub.2 --C(R.sup.1 A)--where R.sup.1 is H or CH.sub.3 and A is an aromatic radical which contains aldehyde groups and has the formula ##STR1## where R.sup.2 is H, OH, O-alkyl, alkoxyalkyl or O--Si(CH.sub.3).sub.3. The polymers are prepared by polymerizing the corresponding monomers CH.sub.2 .dbd.C(R.sup.1 A) in the presence of free-radical initiators.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: February 9, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Naarmann, Guenter Wulff, Ahmed Akelah