Patents by Inventor by Ursla Otten, heir

by Ursla Otten, heir 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).

  • Patent number: 4442288
    Abstract: Water-soluble anthraquinone compounds of the formula (1) ##STR1## wherein M is a hydrogen atom or the equivalent of a metal, such as in particular sodium or potassium, R is a hydrogen atom, a halogen atom, the methyl, ethyl, methoxy, ethoxy or carboxy group, and X is the vinyl group, a .beta.-thiosulfatoethyl, .beta.-sulfatoethyl or the .beta.-chloroethyl group. These compounds may be prepared in a manner know by itself by reacting an anthraquinone compound of the formula (2) ##STR2## wherein M is defined as above, with an equimolar quantity of cyanuric chloride and an amine of the formula (4) ##STR3## wherein R and X are defined as above, or by reacting said anthraquinone compound of the formula (2) with a compound of the formula (5) ##STR4## wherein R and X are defined as above. The new compounds of the formula (1) are valuable dyestuffs having fiber-reactive properties.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: April 10, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Meininger, Joachim W. Otten, deceased, by Ursla Otten, heir, by Anna G. Rudolph, heir