Patents by Inventor Frederick W. Landau

Frederick W. Landau 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 manufacture of alkyl esters of aliphatic carboxylic acids
    Patent number: 4076950
    Abstract: A continuous process for the preparation of acrylic and methacrylic acid esters by conventional esterification, where sufficient substantially anhydrous product ester is added to the esterification reactor to satisfy the ester/alkanol and ester/water azeotropes, the low boiling azeotropes are recovered, thereby removing crude product ester, unreacted alkanol and water of esterification from the esterification reactor, while leaving substantially all the high-boiling unreacted acrylic or methacrylic acid in the reactor.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: February 28, 1978
    Assignee: Rohm and Haas Company
    Inventors: Thomas Stewart, Frederick W. Landau