Patents by Inventor David E. Wallick

David E. Wallick 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: 10624376
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 21, 2020
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Publication number: 20180042284
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Patent number: 9826768
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: November 28, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Patent number: 9616036
    Abstract: A sustained release dosage form comprises an active ingredient blended with a polymeric matrix. At least a portion of the polymeric matrix is formed by a cellulose ether having an onset dissolution temperature of at least 40° C., having anhydroglucose units joined by 1-4 linkages and having methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that the cellulose ether has an MS (hydroxyalkyl) of 0.05 to 1.00, and hydroxyl groups of anhydroglucose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.31 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 3-positions of the anhydroglucose unit are substituted with a methyl group and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 6-positions of the anhydroglucose unit are substituted with a methyl group.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 11, 2017
    Inventors: Meinolf Brackhagen, Roland Adden, Oliver Petermann, Robert L. Sammler, David E. Wallick
  • Publication number: 20160081384
    Abstract: A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s?1.
    Type: Application
    Filed: April 8, 2014
    Publication date: March 24, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Puspendu Deo, Kathryn Brown, David E. Wallick, Robert L. Sammler, Yongfu Li
  • Publication number: 20150157038
    Abstract: A method of preparing an edible oleogel comprising combining an edible triacylglycerol oil or triacylglycerol fat and ethylcellulose in a weight ratio of from 99:1 to 80:20 to form a mixture, and heating and agitating the mixture at a temperature within the range of from 80 to 300° C. to form an oleogel, wherein the heating and agitating is conducted under an inert atmosphere; an oleogel obtainable by said method, its use to prepare food products and to food products comprising said oleogel.
    Type: Application
    Filed: June 6, 2013
    Publication date: June 11, 2015
    Inventors: Roja Ergun, Bradley S. Thomson, David E. Wallick, David M. Meunier
  • Publication number: 20150057358
    Abstract: A sustained release dosage form comprises an active ingredient blended with a polymeric matrix. At least a portion of the polymeric matrix is formed by a cellulose ether having an onset dissolution temperature of at least 40° C., having anhydroglucose units joined by 1-4 linkages and having methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that the cellulose ether has an MS (hydroxyalkyl) of 0.05 to 1.00, and hydroxyl groups of anhydrogluclose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.31 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 3-positions of the anhydroglucose unit are substituted with a methyl group and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 6-positions of the anhydroglucose unit are substituted with a methyl group.
    Type: Application
    Filed: April 8, 2013
    Publication date: February 26, 2015
    Inventors: Meinolf Brackhagen, Roland Adden, Oliver Petermann, Robert L. Sammler, David E. Wallick
  • Patent number: 6743764
    Abstract: This invention addresses methods and compositions for providing alkyl diphenyl oxide sulfonic acid blends at useful viscosities for use in surfactants such as DOWFAX-containing surfactants. The low viscosity alkyl diphenyl oxide sulfonic acid blend is made by admixing a fatty acid having a carboxylic chain length between 1 and 12 (e.g., formic acid, acetic acid, propionic acid, butanoic acid, pentanoic acid, valeric acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, or dodecanoic acid into an alkyl diphenyl oxide sulfonic acid reaction product to provide between about 5 weight percentage and about 50 weight percentage of fatty acid in the admixture.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: June 1, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: David E. Wallick, Timothy J. Gallagher
  • 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
  • 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
  • Patent number: 4613671
    Abstract: A process for producing Meldrum's acid in excellent yield wherein acetic anhydride is added in a slow, controlled manner to a mixture of acetone, malonic acid and an acid catalyst.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: September 23, 1986
    Assignee: The Dow Chemical Company
    Inventors: Attila G. Relenyi, David E. Wallick, Jill D. Streit