Patents by Inventor Warren L. Treptow

Warren L. Treptow 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).

  • Absorbent polymer having reduced dusting tendencies
    Patent number: 5994440
    Abstract: The invention provides water-swellable polymer compositions having reduced dusting tendencies, i.e, reduced amounts of unassoiated dust having a maximum diameter less than or equal to 10 microns and/or the tendency to generate reduced amounts of unassociatcd dust having a maximum diameter less than or equal to 10 microns upon attrition, and a process for preparing such compositions.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: November 30, 1999
    Assignee: The Dow Chemical Company
    Inventors: Thomas L. Staples, Warren L. Treptow, Stewart P. Wood
  • Composition and use of substituted 3-thio-2-propynenitriles as industrial antimicrobials
    Patent number: 5198445
    Abstract: Substituted 3-thio-2-propynenitriles are prepared which correspond to the formula:R--S--C.tbd.C--C.tbd.Nwherein R is an alkyl, cyclic alkyl, aryl, or heterocyclo group.These compounds have been found to exhibit a high degree of antimicrobial activity in industrial and commercial applications and compositions containing these compounds are so employed.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: March 30, 1993
    Assignee: The Dow Chemical Company
    Inventors: Connie L. Deford, Charles D. Gartner, Kalakota S. Reddy, John K. Swayze, David E. Wallick, Warren L. Treptow, George A. Paul, Billy R. Hardas
  • Composition and use of substituted 3-thio-2-propynenitriles as an industrial antimicrobial
    Patent number: 5126349
    Abstract: Substituted 3-thio-2-propynenitriles are prepared which correspond to the formula:R--S--C.tbd.C--C.tbd.Nwherein R is an alkyl, cyclic alkyl, aryl, or heterocyclo group.These compounds have been found to exhibit a high degree of antimicrobial activity in industrial and commercial applications and compositions containing these compounds are so employed.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: June 30, 1992
    Assignee: The Dow Chemical Company
    Inventors: Connie I. Deford, Charles D. Gartner, Kalakota S. Reddy, John K. Swayze, David E. Wallick, Warren L. Treptow, George A. Paul, Billy R. Hardas
  • Crosslinked silane-functional vinylidene chloride polymer and films or foams therefrom
    Patent number: 4689355
    Abstract: A polymeric composition is provided which includes the reaction product of vinylidene chloride, an optional copolymerizable monomer, and an .alpha.,.beta. ethylenically unsaturated silane crosslinking agent. The polymeric reaction product may also be used to form films and coating. The composition further may include a volatile blowing agent which, when activated, expands the polymeric reaction product into a low density cellular structure.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: August 25, 1987
    Assignee: The Dow Chemical Company
    Inventors: Warren L. Treptow, Kun S. Hyun, Chung P. Park
  • Crosslinked silane-functional vinylidene chloride polymer and films or foams therefrom
    Patent number: 4624969
    Abstract: A polymeric composition is provided which includes the reaction product of vinylidene chloride, an optional copolymerizable monomer, and an .alpha.,.beta. ethylenically unsaturated silane crosslinking agent. The polymeric reaction product may also be used to form films and coatings. The composition further may include a volatile blowing agent which, when activated, expands the polymeric reaction product into a low density cellular structure.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: November 25, 1986
    Assignee: The Dow Chemical Company
    Inventors: Warren L. Treptow, Chung P. Park, Kun S. Hyun
  • High vinylidene chloride content interpolymer coating resins and method of preparation
    Patent number: 4451632
    Abstract: A process for preparing, in aqueous emulsion, controlled interpolymer compositions. The interpolymer compositions have polymerized therein from about 86 to 92 mole percent, vinylidene chloride, from about 14 to 8 mole percent of a comonomer mixture of methyl methacrylate and a comonomer selected from the group consisting of acrylonitrile, methacrylic acid and methacrylonitrile in a ratio of the comonomer to methyl methacrylate of from about 0.5:1 to 2:1, and from about 0.5 to 1.0 weight percent itaconic acid, based on weight of vinylidene chloride plus comonomer mixture. The interpolymers are prepared in a three step process. The third step, or Step III, wherein monomer feeding is step-wise reduced for a portion of the step and a polymerization initiator is added at generally the same constant rate as the rate of addition in Steps I and II, generally reduces the amount of unreacted mixed monomers remaining after monomer addition is completed.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: May 29, 1984
    Assignee: The Dow Chemical Company
    Inventors: Dale S. Gibbs, Warren L. Treptow