Patents by Inventor William J. Zeman

William J. Zeman 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).

  • Patent number: 6458343
    Abstract: A composition comprising a compound selected from the group consisting of compounds of the following structural formula (1A): and the protonated and quaternized derivatives thereof of the following structural formula (1B): wherein R1 is a C2 to C22 hydrocarbyl group or is an ether group of the formula R—O—(R3)v—C3H6—, where v is 0 to 10 and R is a C1 to C22 hydrocarbyl group; R2 is hydrogen or a C1 to C22 hydrocarbyl group, or is  and (R3)yH, where y is 1 to 100; each R3 is independently selected from a group consisting of an ethylene oxide group (C2H4O), a propylene oxide group (C3H6O), a butylene oxide group (C4H8O) and mixtures thereof; each R4 is a C3 to C2, hydrocarbyl group; R5 is hydrogen or a C1 to C8 hydrocarbyl group; and x is 1 to 100; and A− is an anion.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: October 1, 2002
    Assignee: Goldschmidt Chemical Corporation
    Inventors: William J. Zeman, Craig Poffenberger, Yvonne D. R. Deac
  • Patent number: 5716498
    Abstract: Paper having a improved softness is obtained by adding to the fiber suspension from which the paper is made, a quaternized fatty acid trialkanolamine ester salt of the formula (I) ##STR1## in which R.sup.1 CO represents an acyl radical having 6 to 22 carbon atoms, R.sup.2 and R.sup.3, independently of one another, represent hydrogen or R.sup.1 CO, (ALK) is ethyl or propyl, R.sup.4 represents an alkyl radical having 1 to 4 carbon atoms or a (CH.sub.2 CH.sub.2 O).sub.q H group, the sum of m, n and p represents O or numbers from 1 to 12, q represents numbers from 1 to 12 and X represents halide, alkylsulfate or alkylphosphate.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: February 10, 1998
    Assignee: Witco Corporation
    Inventors: Neil A. Jenny, William J. Zeman
  • Patent number: 5200097
    Abstract: The addition of up to 15 percent by weight of a polyoxyalkylene derivative to a fatty acid derived bis(alkylamidoalkyl)amine derived quaternary salt permits the atomization of the latter in conventional equipment. The resulting fabric softening product is in the desirable form of a free flowing solid, water dispersible powder.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: April 6, 1993
    Assignee: Sherex Chemical Company, Inc.
    Inventors: Leonard Hughes, James G. Fuller, William J. Zeman
  • Patent number: 5015412
    Abstract: Disclosed is an aqueous basic solution having a calculated pH of 13 or greater of a sulfobetaine which is soluble and stable for extended periods of storage. The sulfobetaine also is soluble and stable in aqueous basic solutions of high concentration, e.g. up to 30%-50% by weight sodium hydroxide or potassium hydroxide.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: May 14, 1991
    Assignee: Sherex Chemical Company, Inc.
    Inventor: William J. Zeman
  • Patent number: 4913841
    Abstract: Disclosed is an aqueous basic solution having a calculated pH of 13 or greater of a sulfobetaine which is soluble and stable for extended periods of storage. The sulfobetaine also is soluble and stable in aqueous basic solutions of high concentration, e.g. up to 50% by weight sodium hydroxide.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: April 3, 1990
    Assignee: Sherex Chemical Company, Inc.
    Inventor: William J. Zeman