Patents by Inventor Samuel A. Firman, III

Samuel A. Firman, III 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).

  • Compositions for defoaming aqueous compositions
    Patent number: 6512016
    Abstract: Defoaming compositions consisting essentially of: A) at least one organosilicone compound having defoaming activity in aqueous based compositions; and B) at least one base catalyzed reaction product of: a) a linking agent of formula I R4(Y)3  (I) wherein each Y group is a halogen atom or a halogen and two Y groups on adjacent carbons in R4 and an oxygen may be an epoxy group, and R4 is an alkane triyl group having 3 to 10 carbon atoms; and b) a compound of formula II R3(EO)n(PO)m(BO)pX  (II) wherein R3 is defined in the specification; n, m, and p are 0 to 50; X is hydrogen, mercapto group or amino group; when X is other than hydrogen, the sum of m, n, and p must be at least 1; the mole ratio of I:II is from about 0.6:1 to about 5:1; and aqueuos compositions containing them.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: January 28, 2003
    Assignee: Cognis Corporation
    Inventors: Ayaz Khan, Samuel A. Firman, III, David W. Brown, John E. Nowicki