Patents by Inventor Edmund F. Perkins, Jr.

Edmund F. Perkins, Jr. 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 producing betaine/amine oxide mixtures
    Patent number: 6281176
    Abstract: This invention provides a process for producing a betaine/amine oxide mixture. This process comprises reacting, in a liquid medium, an alkali metal &ohgr;-halocarboxylate with a first tertiary amine of the formula Ra2RbN, wherein each Ra group is a hydrocarbyl group which independently has from 1 to about 4 carbon atoms, and wherein the Rb group is a hydrocarbyl group which has from about 8 to about 24 carbon atoms, to produce a betaine product solution. To the betaine product solution is added a second tertiary amine of the formula Ra2RbN, wherein each Ra group is a hydrocarbyl group which independently has from 1 to about 4 carbon atoms, and wherein the Rb group is a hydrocarbyl group which has from about 8 to about 24 carbon atoms, to produce an amine/betaine mixture. The first and second tertiary amines can be separate portions of the same amine. Preferably, however, the first and second tertiary amines differ from each other.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: August 28, 2001
    Assignee: Albemarle Corporation
    Inventors: Rebecca S. Cochran, Patrick C. Hu, Michael S. McCaig, Edmund F. Perkins, Jr., Joe D. Sauer, Dustin H. Thomas