Patents by Inventor Hans-Joachim Vahlensteck

Hans-Joachim Vahlensteck 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).

  • Beta-aminoethylsilanes and a method of preparing same
    Patent number: 4152346
    Abstract: Aminoethylsilanes of the following formula: ##STR1## AMINOETHYLSILOXANES HAVING THE STRUCTURAL UNITS ##STR2## IN WHICH R' represents an aliphatic, saturated or unsaturated hydrocarbon group having 1 to 10 carbon atoms, R" represents an alkyl or oxalkyl radical or the phenyl radical, and a can be equal to 0 or 1 and x equal to 0 or 1 or 2; a process for preparing such aminoethylsilane or aminoethylsiloxane which comprises contacting a beta-halogenethylsilane of the formula: ##STR3## A SILOXANE WITH THE RECURRENT STRUCTURAL UNIT ##STR4## WHEREIN R' is a saturated or unsaturated aliphatic hydrocarbon radical, R" is an alkyl, oxyalkyl or phenyl radical, Y is a halogen atom, a is O or 1 and with ammonia at a temperature between 50 and 120.degree. C.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: May 1, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Claus-Dietrich Seiler, Hans-Peter Schwarz, Hans-Joachim Kotzsch, Hans-Joachim Vahlensteck