Patents by Inventor Mark E. Rerek

Mark E. Rerek 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).

  • Composition and process for retaining active ingredients
    Patent number: 7416739
    Abstract: A composition for retaining active ingredients in personal care compositions is described based on one or more polymers having a network structure in an oil phase in amounts from 0.01 to 10% by weight based on the total weight of the composition in the oil phase, the polymers including at least one associative agent, the composition further including at least one active component. The oil phase viscosity of each composition is at least 10 poise under a shear stress up to 1000 dynes/cm2.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 26, 2008
    Assignee: Rohm and Haas Company
    Inventors: Steven M. Baxter, Willie Lau, Berislav Markovic, Mark E. Rerek, Curtis Schwartz, Thomas R. Tepe, Elliott Zucker
  • Composition and process for retaining active ingredients
    Publication number: 20030021847
    Abstract: A composition for retaining active ingredients in personal care compositions is described based on one or more polymers having a network structure in an oil phase in amounts from 0.01 to 10% by weight based on the total weight of the composition in the oil phase, the polymers including at least one associative agent, the composition further including at least one active component. The oil phase viscosity of each composition is at least 10 poise under a shear stress up to 1000 dynes/cm2.
    Type: Application
    Filed: June 25, 2002
    Publication date: January 30, 2003
    Inventors: Steven M. Baxter, Willie Lau, Berislav Markovic, Mark E. Rerek, Curtis Schwartz, Thomas R. Tepe, Elliott Zucker
  • Acyl isethionate skin cleaning compositions containing betaines, amido sulfosuccinates or combinations of the two
    Patent number: 5372751
    Abstract: The present invention relates to solid compositions comprising acyl isethionate and betaines, to compositions comprising acyl isethionate and amidosulfosuccinate, and to compositions comprising acyl isethionate, betaine and amidosulfosuccinate.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: December 13, 1994
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Karla J. Rys-Cicciari, Alan P. Greene, Frederick S. Osmer, Jeanette F. Carque, Robert S. Lee, Andrew C. Coxon, Joseph J. Podgorsky, Mark E. Rerek
  • Bleach activation
    Patent number: 5114611
    Abstract: Peroxy compound bleaching is activated by a catalytic amount of a transition metal complex of a transition metal (Mn, Co, Fe or Cu) with a non-(macro)-cyclic ligand of the formula: ##STR1## preferably 2,2'-bispyridylamine. Bleaching agent and bleach detergent compositions are also disclosed comprising a peroxy compound bleach and said transition metal complex. The transition metal complex is an effective catalyst for activating hydrogen peroxide compounds, peroxyacids and peroxyacid bleach precursors on removing a wide class of stains from substrates, especially texiles and fabrics.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: May 19, 1992
    Assignee: Lever Brothers Company, Divison of Conopco, Inc.
    Inventors: Cornelis G. Van Kralingen, Rudolf J. Martens, Mark E. Rerek, Ton Swarthoff, Marten Van Vliet
  • Suspending system for insoluble peroxy acid bleach
    Patent number: 4828747
    Abstract: An aqueous liquid bleaching composition is described having a pH from 1 to 6.5 and comprising a solid, particulate, substantially water-insoluble organic peroxy acid such as diperoxydodecanedioic acid. This peroxy acid is stably suspended in an aqueous liquid by a structuring combination of anionic surfactant, ethoxylated nonionic surfactant, and fatty acid.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: May 9, 1989
    Assignee: Lever Brothers Company
    Inventors: Mark E. Rerek, Michael P. Aronson, Ralph R. Sepulveda
  • Suspending system for insoluble peroxy acid bleach
    Patent number: 4824592
    Abstract: An aqueous liquid bleaching composition is described having a pH from 1 to 6.5 and comprising a solid, particulate, substantially water-insoluble organic peroxy acid such as diperoxydodecanedioic acid. This peroxy acid is stably suspended in the aqueous liquid by a structurant combination of secondary alkane sulfonate and fatty acid.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: April 25, 1989
    Assignee: Lever Brothers Company
    Inventors: Mark E. Rerek, Michael P. Aronson
  • Detergent bleach compositions, bleaching agents and bleach activators
    Patent number: 4728455
    Abstract: Bleaching agent compositions and detergent bleach formulations containing them comprise effective amounts of (a) a peroxide compound having a bleaching action; and (b) a catalyst for the bleaching action of the peroxide compound, said catalyst comprising a water-soluble complex of manganese (III) with a multidentate ligand. The amount of complexing agent in the catalyst that supplies the multidentate ligand to form the complex is such that the molar ratio of complexing agent to manganese is at least about 1:1, preferably 10:1 or greater.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: March 1, 1988
    Assignee: Lever Brothers Company
    Inventor: Mark E. Rerek