Patents by Inventor Steven A. Bolkan

Steven A. Bolkan 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: 5858279
    Abstract: A defoaming composition comprising about 1 to about 90% by weight of a mixture of at least three defoaming agents, (a), (b), and (c) and about 99 to about 10% by weight of at least two stabilizers (d) and (e) therefor, and optionally a carrier therefor, where defoamer (a) is selected from a hydrophilic, fumed, particulate silica; defoamer (b) is an ethylene oxide-propylene oxide block copolymer; and defoamer (c) is a linear alcohol alkoxylate mixture of poly(oxyethylene/polyoxypropylene) mono- C.sub.6, C.sub.8, and C.sub.10 alkyl ethers; stabilizer (d) is an ethoxylated C.sub.12-18 fatty alcohol having a molecular weight of about 820; and stabilizer (e) is a cross-linked (meth)acrylic acid polymer.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: January 12, 1999
    Assignee: Church & Dwight Co., Inc
    Inventors: Michael S. Lunski, Steven A. Bolkan
  • Patent number: 5853490
    Abstract: Prevention of flash rusting of iron-containing substrates is achieved by contacting the substrates with aqueous solutions containing carbonate and/or bicarbonate salts. The treatment process can be effected during cleaning of the substrates with an aqueous alkaline cleaner or during a post cleaning step such as during rinsing of the substrates subsequent to cleaning.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: December 29, 1998
    Assignee: Church & Dwight Inc.
    Inventors: Steven Dunn, Steven A. Bolkan, Francis Cala, Anthony Winston
  • Patent number: 5834411
    Abstract: An aqueous metal cleaning composition is provided which comprises an alkalinity providing agent such as alkali metal carbonate and/or bicarbonate salts and a low foaming surfactant. The aqueous cleaning solution has specific foam height and foam collapse characteristics, and provides for substantially complete phase separation of a contaminant phase from the aqueous cleaning composition such that there is substantially no aqueous phase drag out into the contaminant phase; and the contaminant phase can be removed easily, and the aqueous cleaning solution can be recovered and reused.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: November 10, 1998
    Assignee: Church & Dwight Co., Inc
    Inventors: Steven A. Bolkan, Gale A. Byrnes, Steven Dunn, Alfredo Vinci, Antony E. Winston, Patricia L. Phillips
  • Patent number: 5736495
    Abstract: A composition and method for cleaning metal and for inhibiting corrosion of metal. The composition is composed of an alkaline metal salt, a surfactant, and a corrosion inhibitor with a pH in the range from about 7.5 to less than 10, and is preferably silicate free. The corrosion inhibitor is provided in the form of a combination of a triazole compound and an alkali metal borate. The composition can be employed to clean metal surfaces as an aqueous concentrate or aqueous solution.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: April 7, 1998
    Assignee: Church & Dwight Co., Inc.
    Inventors: Steven A. Bolkan, Steve Dunn
  • Patent number: 5712236
    Abstract: A metal cleaning composition useful in an aqueous solution comprises an alkali metal salt and a corrosion inhibitor. The corrosion inhibitor is provided in the form of zinc phosphate compounds such as zinc orthophosphate.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: January 27, 1998
    Assignee: Church & Dwight Co., Inc.
    Inventors: Steven A. Bolkan, Steve Dunn, Gale Byrnes
  • Patent number: 5552078
    Abstract: A powdered laundry detergent composition comprising an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate salt, e.g., sodium carbonate, about 0.1 to 2 wt. % of a phosphorus-containing sequestering agent, e.g., sodium tripolyphosphate (STPP), about 0.1 to 2 wt. % of a polymeric polycarboxylate, e.g., a polyacrylate or a polymaleate, and about 1-12 wt. % water. Use of the foregoing detergent composition provides excellent cleaning and whitening of fabrics while avoiding the problem of eutrophication which occurs when a substantial amount of a phosphorus containing builder such as STPP is present in the composition, and while minimizing the problem of fabric encrustation often present when the composition contains a large amount of carbonate builder.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 3, 1996
    Assignee: Church & Dwight Co., Inc.
    Inventors: Charles D. Carr, Steven A. Bolkan, Joseph G. Becker
  • Patent number: 5496376
    Abstract: A laundry detergent composition, wherein the solids content comprises an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate, e.g., sodium carbonate, and, a minor amount, for example, about 0.05 to 5 wt. % of a polymeric polycarboxylate, e.g., an acrylic acid polymer, based on the total weight of solids in the composition, the polymeric polycarboxylate being in a form such that its complete release into wash water is delayed to at least about 60 seconds after the complete dissolution of the alkaline carbonate. For example, the polymeric polycarboxylate may be present in slow dissolving granules which also contain a diluent salt such as sodium carbonate and a binder such as a low molecular weight polyethylene glycol. The delayed release of the polymeric polycarboxylate reduces fabric encrustation during washing, i.e., the precipitation of CaCO.sub.3 onto fabric surfaces due to the presence of soluble alkaline carbonate.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: March 5, 1996
    Assignee: Church & Dwight Co., Inc.
    Inventors: Anthony J. Falotico, Steven A. Bolkan, Louis R. Mazzola
  • Patent number: 5482647
    Abstract: A powdered laundry detergent composition is provided comprising an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate salt, and about 0.1 to 5.0 wt. % of a terpolymer of acrylic acid, maleic acid, and acrylamide.Use of the foregoing detergent composition provides excellent cleaning and whitening of fabrics while avoiding any serious problem of eutrophication which occurs when a substantial amount of a phosphorus containing builder such as STPP is present in the composition, and while minimizing the problem of fabric encrustation often present when the composition contains a large amount of carbonate builder.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: January 9, 1996
    Assignee: Church & Dwight Co., Inc.
    Inventors: Steven A. Bolkan, Joseph G. Becker
  • Patent number: 5431836
    Abstract: A laundry detergent composition, wherein the solids content comprises an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate, e.g., sodium carbonate, up to about 12 wt. % of elemental magnesium in the form of a water soluble salt, e.g., magnesium sulfate or magnesium chloride, and about 0.05 to 5 wt. % of a polymeric polycarboxylate, e.g., an acrylic acid polymer, based on the total weight of solids in the composition. Incorporation of magnesium ions in the foregoing laundry detergent composition containing carbonate ions is intended to minimize negative interactions that will occur between the precipitation of calcium carbonate and the surfaces of the fabric being cleaned, e.g., fabric encrustation, with an enhancement of this effect due to the presence of the polymeric polycarboxylate.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: July 11, 1995
    Assignee: Church & Dwight Co., Inc.
    Inventors: Charles D. Carr, Joseph G. Becker, Anthony J. Falotico, Steven A. Bolkan
  • Patent number: 5376300
    Abstract: A powdered laundry detergent composition is provided comprising an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate salt, e.g., sodium carbonate, about 0.1 to 2 wt. % of a phosphorus-containing sequestering agent, e.g., sodium tripolyphosphate, about 0.1 to 2 wt. % of a polymeric polycarboxylate, e.g., a polyacrylate, and about 1-12 wt. % water.Use of the foregoing detergent composition provides excellent cleaning and whitening of fabrics while avoiding the problem of eutrophication which occurs when a substantial amount of a phosphorus containing builder such as STPP is present in the composition, and while minimizing the problem of fabric encrustation often present when the composition contains a large amount of carbonate builder.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: December 27, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Steven A. Bolkan, Joseph G. Becker
  • Patent number: 5269962
    Abstract: The present invention provides stable bleach activator granules comprising:(a) a peroxygen bleach activator having the structure: ##STR1## wherein R is C.sub.1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R' and R" are independently H, C.sub.1-4 alkyl, aryl; and L is a leaving group;b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40.degree. C.; andc) a solubilizing aid selected from the group consisting of magnesium sulfate, alkali aryl sulfonate, polyvinyl pyrrolidone or mixtures thereof.The invention can also include additional stiffeners, such as calcium or magnesium silicate, or silica.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: December 14, 1993
    Assignee: The Clorox Company
    Inventors: Kevin J. Brodbeck, Thomas B. Ottoboni, Cris T. Spillett, Dale S. Steichen, Suzanne M. Thompson, Alfred G. Zielske, Steven A. Bolkan
  • Patent number: 5112514
    Abstract: The present invention provides stable bleach activator granules comprising:a) a peroxygen bleach activator having the structure: ##STR1## wherein R is C.sub.1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R' and R" are independently H, C.sub.1-4 alkyl, aryl; and L is a leaving group;b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40.degree. C.; and, optionally,c) a filler material.These bleach activator granules are combined with a detergent base which contains an oxidant bleach to provide an activated oxidant detergent composition.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: May 12, 1992
    Assignee: The Clorox Company
    Inventors: Steven A. Bolkan, Kelly J. Brodbeck, Kevin J. Brodbeck, David L. Deleeuw, Dale S. Steichen, Bruce B. Strand, Richard J. V. Suk, Kathleen D. Szuch, Alfred G. Zielske
  • Patent number: 5002691
    Abstract: The present invention provides stable bleach activator granules comprising:a) a peroxygen bleach activator having the structure: ##STR1## wherein R is C.sub.1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R' and R" are independently H, C.sub.1-4 alkyl, aryl; and L is a leaving group;b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40.degree. C.; and, optionally,c) a filler material.These bleach activator granules are combined with a detergent base which contains an oxidant bleach to provide an activated oxidant detergent composition.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: March 26, 1991
    Assignee: The Clorox Company
    Inventors: Steven A. Bolkan, Kelly I. Brodbeck, Kevin J. Brodbeck, David L. Deleeuw, Dale S. Steichen, Bruce B. Strand, Richard J. V. Suk, Kathleen D. Szuch, Alfred G. Zielske