Patents by Inventor Heinz Pachaly

Heinz Pachaly 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 the preparation of storage-stable alkylene glycol monoalkyl ethers
    Patent number: 4490214
    Abstract: The subject invention relates to the preparation of storage-stable alkylene glycol monoalkyl ethers having the general formulaR--(O--A--).sub.n OHin which A represents an ethylene or propylene group, R denotes a C.sub.1 -C.sub.4 -alkyl group, and n has a value of 1 to 4. They are prepared by carrying out the fractional distillation of a mixture which is produced by the alkali catalyzed reaction of ethylene oxide or propylene oxide with an alcohol in the presence of 0.1 to 20 ppm of ammonia based on the amount of the mixture.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: December 25, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst G. Bosche, Heinz Nohe, Heinz Pachaly