Patents by Inventor Dennis Sagl

Dennis Sagl 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).

  • Publication number: 20250066963
    Abstract: A crosslinkable stabilized composition for a nonwoven substrate includes an aqueous dispersion of vinyl acetate-ethylene copolymers, a polyvinyl alcohol dispersion stabilizer, and a copolymer comprising maleic anhydride units or a copolymer comprising maleic acid units. The composition exhibits a free formaldehyde content of 5 ppm or less.
    Type: Application
    Filed: January 5, 2022
    Publication date: February 27, 2025
    Applicant: Wacker Chemie AG
    Inventors: Dennis Sagl, John Boylan, Jennifer Plummer
  • Patent number: 11326132
    Abstract: An antimicrobial nonwoven wet wipe includes i) a fibrous nonwoven substrate bonded with a cross-linkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants, and ii) absorbed in the nonwoven substrate, an aqueous lotion including one or more cationic disinfectants. No anionic surfactants are present in the antimicrobial nonwoven wet wipe. A method of producing the antimicrobial nonwoven wet wipe includes a) applying a first aqueous composition including a crosslinkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants to a nonwoven substrate; b) drying the composition; and c) applying a second aqueous composition to the product of step b). At least one of the first and second aqueous compositions includes one or more cationic disinfectants.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 10, 2022
    Assignee: Wacker Chemie AG
    Inventors: John Richard Boylan, Dennis Sagl
  • Publication number: 20210289778
    Abstract: An antimicrobial nonwoven wet wipe includes i) a fibrous nonwoven substrate bonded with a crosslinkable VAE dispersion stabilized with one or more cationic vinyl alcohol-N-vinyl amine copolymer protective colloids, and ii) an aqueous lotion containing a cationic disinfectants absorbed in the nonwoven substrate. No anionic surfactants are present. The antimicrobial nonwoven wet wipes are produced by a) applying an aqueous composition including a crosslinkable VAE dispersion stabilized with one or more cationic vinyl alcohol-N-vinyl amine copolymers to a nonwoven substrate; b) drying; and c) applying an aqueous composition to the product of step b). At least one of the first and second aqueous com-positions includes a cationic disinfectant.
    Type: Application
    Filed: December 14, 2018
    Publication date: September 23, 2021
    Applicant: WACKER CHEMIE AG
    Inventors: John BOYLAN, Dennis SAGL
  • Patent number: 10968569
    Abstract: A crepe process includes applying an adhesive composition to a nonwoven web, drying, and creping the nonwoven web on a creping drum. The improvement includes using an adhesive composition that includes an aqueous copolymer dispersion obtained by emulsion polymerization of a monomer mixture including 65 to 94.5% by weight of vinyl acetate, 5 to 30% by weight of ethylene, (meth)acrylamide, and 0.1 to 4% by weight of an N-methylol functional monomer. The N-methylol functional monomer constitutes from 25 to 85% by weight of the combined amounts of acrylamide and N-methylol functional monomer, which combined amounts constitute from 0.5 to 5% by weight of the monomer mixture. The emulsion polymerization is performed in the presence of 1 to 10% by weight of polyvinyl alcohol, based on the total weight of all monomers used for the polymerization. The adhesive composition does not include alkylphenol ethoxylates, phosphate ester surfactants, or sodium laureth sulfate.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: April 6, 2021
    Assignee: WACKER CHEMIE AG
    Inventors: John Richard Boylan, Dennis Sagl
  • Publication number: 20200056124
    Abstract: An antimicrobial nonwoven wet wipe includes i) a fibrous nonwoven substrate bonded with a cross-linkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants, and ii) absorbed in the nonwoven substrate, an aqueous lotion including one or more cationic disinfectants. No anionic surfactants are present in the antimicrobial nonwoven wet wipe. A method of producing the antimicrobial nonwoven wet wipe includes a) applying a first aqueous composition including a crosslinkable VAE dispersion stabilized with one or more nonionic colloidal stabilizers and one or more nonionic surfactants to a nonwoven substrate; b) drying the composition; and c) applying a second aqueous composition to the product of step b). At least one of the first and second aqueous compositions includes one or more cationic disinfectants.
    Type: Application
    Filed: May 3, 2017
    Publication date: February 20, 2020
    Applicants: WACKER CHEMIE AG
    Inventors: John Richard BOYLAN, Dennis SAGL
  • Publication number: 20190127916
    Abstract: A crepe process includes applying an adhesive composition to a nonwoven web, drying, and creping the nonwoven web on a creping drum. The improvement includes using an adhesive composition that includes an aqueous copolymer dispersion obtained by emulsion polymerization of a monomer mixture including 65 to 94.5% by weight of vinyl acetate, 5 to 30% by weight of ethylene, (meth)acrylamide, and 0.1 to 4% by weight of an N-methylol functional monomer. The N-methylol functional monomer constitutes from 25 to 85% by weight of the combined amounts of acrylamide and N-methylol functional monomer, which combined amounts constitute from 0.5 to 5% by weight of the monomer mixture. The emulsion polymerization is performed in the presence of 1 to 10% by weight of polyvinyl alcohol, based on the total weight of all monomers used for the polymerization. The adhesive composition does not include alkylphenol ethoxylates, phosphate ester surfactants, or sodium laureth sulfate.
    Type: Application
    Filed: April 21, 2017
    Publication date: May 2, 2019
    Inventors: John Richard BOYLAN, Dennis SAGL
  • Patent number: 9382341
    Abstract: An aqueous carpet coating composition includes a particulate filler, a polymeric thickener and an aqueous dispersion of a copolymer that includes vinyl acetate units and ethylene units. The dispersion stabilization system includes a) 1.5 to 3 wt % of a combination of polyvinyl alcohols including a1) one or more partially hydrolyzed polyvinyl alcohols with a degree of hydrolysis of 85 to 95 mol % and a Hoeppler viscosity of 10-33 mPa·s, and a2) one or more highly hydrolyzed polyvinyl alcohols with a degree of hydrolysis of 98 to 100 mol % and a Hoeppler viscosity of 10-33 mPa·s; and b) 1.5 to 3 wt % of an emulsifier component consisting of one or more nonionic emulsifiers and one or more anionic emulsifiers. The dispersion has a viscosity of ?1500 mPa·s and the viscosity of the coating composition is 6000 to 7000 mPa·s.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: July 5, 2016
    Assignee: WACKER CHEMICAL CORPORATION
    Inventors: Dennis Sagl, John McClurken, Ronald Joseph Pangrazi
  • Publication number: 20140087120
    Abstract: An aqueous carpet coating composition includes a particulate filler, a polymeric thickener and an aqueous dispersion of a copolymer that includes vinyl acetate units and ethylene units. The dispersion stabilization system includes a) 1.5 to 3 wt % of a combination of polyvinyl alcohols including a1) one or more partially hydrolyzed polyvinyl alcohols with a degree of hydrolysis of 85 to 95 mol % and a Hoeppler viscosity of 10-33 mPa·s, and a2) one or more highly hydrolyzed polyvinyl alcohols with a degree of hydrolysis of 98 to 100 mol % and a Hoeppler viscosity of 10-33 mPa·s; and b) 1.5 to 3 wt % of an emulsifier component consisting of one or more nonionic emulsifiers and one or more anionic emulsifiers. The dispersion has a viscosity of ?1500 mPa·s and the viscosity of the coating composition is 6000 to 7000 mPa·s.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: Wacker Chemical Corporation
    Inventors: Dennis Sagl, John McClurken, Ronald Joseph Pangrazi
  • Publication number: 20130149929
    Abstract: An aqueous composition includes a blend of: a) an aqueous dispersion of an N-methylol-containing vinyl acetate ethylene or vinyl acetate polymer, stabilized by polyvinyl alcohol and optionally also by a surfactant, wherein N-methylol-containing monomer units constitute from 0.025 to 0.4 wt % of the polymer; and b) an acid. The invention provides a method of increasing the wet strength of a fibrous nonwoven substrate, including applying to the substrate the above aqueous composition, followed by a drying step. A fibrous nonwoven article is thereby provided.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Applicant: Wacker Chemical Corporation
    Inventors: John Richard Boylan, Dennis Sagl
  • Patent number: 7628888
    Abstract: A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: December 8, 2009
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Eric J. Beckman, W. Eamon Carroll, Toby Chapman, Kristen E. Minnich, Dennis Sagl, Richard J. Goddard
  • Patent number: 7619017
    Abstract: This invention is directed to a method of preserving polymer emulsions against biodeteriogenic microbe attack and spoilage by combining with the polymer emulsions selected cationic compounds and an ethylenediamine acid compound. The polymer emulsions contain surfactants and/or anionic constituents. It is also directed to polymer emulsion compositions, that are resistant to spoilage by biodeteriogenic microbes, containing surfactants and/or anionic constituents, an ethylenediamine acid compound, and cationic compounds.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: November 17, 2009
    Assignee: Wacker Chemical Corporation
    Inventors: John Joseph Rabasco, Dennis Sagl
  • Patent number: 7485590
    Abstract: This invention is directed to an improvement in nonwoven products comprised of a nonwoven web of fibers bonded together with polymeric binder comprised of emulsion polymerized units of vinyl acetate, ethylene, and a crosslinking monomer. The polymer is stabilized with a surfactant having a critical micelle concentration of about 0.5 to 3% by weight. The surfactant is employed in the polymerization in an amount less than 1% by weight, based upon the total weight of polymer.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 3, 2009
    Inventors: John Joseph Rabasco, John Richard Boylan, Dennis Sagl, Ronald Bernal Jones
  • Publication number: 20080081530
    Abstract: This invention is directed to an improvement in nonwoven products comprised of a nonwoven web of fibers bonded together with polymeric binder comprised of emulsion polymerized units of vinyl acetate, ethylene, and a crosslinking monomer. The polymer is stabilized with a surfactant having a critical micelle concentration of about 0.5 to 3% by weight. The surfactant is employed in the polymerization in an amount less than 1% by weight, based upon the total weight of polymer.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventors: John Joseph Rabasco, John Richard Boylan, Dennis Sagl, Ronald Bernal Jones
  • Publication number: 20060231228
    Abstract: A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.
    Type: Application
    Filed: June 12, 2006
    Publication date: October 19, 2006
    Inventors: Eric Beckman, W. Carroll, Toby Chapman, Kristen Minnich, Dennis Sagl, Richard Goddard
  • Patent number: 7090745
    Abstract: A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: August 15, 2006
    Assignee: University of Pittsburgh
    Inventors: Eric J. Beckman, W. Eamon Carroll, Toby Chapman, Kristen E. Minnich, Dennis Sagl, Richard J. Goddard
  • Patent number: 6890969
    Abstract: This invention is directed to a method of preserving colloid-stabilized polymer emulsions against microbial attack and spoilage using selected cationic compounds. It is also directed to compositions containing colloid-stabilized polymer emulsions and cationic compounds that are resistant to contamination with biodeteriogenic microbes. It has been discovered that specific cationic compounds are particularly effective against biodeteriogenic microbes in preserving polymer emulsions that have been stabilized with protective colloids, such as poly(vinyl alcohol). Examples of suitable microbicidal cationic compounds are: substituted pyridinium salts, substituted guanidine salts, tetrasubstituted ammonium salts, and polymeric cationic compounds.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 10, 2005
    Assignee: Air Products Polymers, L.P.
    Inventors: John Joseph Rabasco, Dennis Sagl
  • Publication number: 20040235982
    Abstract: This invention is directed to a method of preserving polymer emulsions against biodeteriogenic microbe attack and spoilage by combining with the polymer emulsions selected cationic compounds and an ethylenediamine acid compound. The polymer emulsions contain surfactants and/or anionic constituents. It is also directed to polymer emulsion compositions, that are resistant to spoilage by biodeteriogenic microbes, containing surfactants and/or anionic constituents, an ethylenediamine acid compound, and cationic compounds.
    Type: Application
    Filed: May 19, 2003
    Publication date: November 25, 2004
    Inventors: John Joseph Rabasco, Dennis Sagl
  • Publication number: 20040050513
    Abstract: A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 18, 2004
    Inventors: Eric J. Beckman, W. Eamon Carroll, Toby Chapman, Kristen E. Minnich, Dennis Sagl, Richard J. Goddard
  • Publication number: 20020099113
    Abstract: This invention is directed to a method of preserving colloid-stabilized polymer emulsions against microbial attack and spoilage using selected cationic compounds. It is also directed to compositions containing colloid-stabilized polymer emulsions and cationic compounds that are resistant to contamination with biodeteriogenic microbes. It has been discovered that specific cationic compounds are particularly effective against biodeteriogenic microbes in preserving polymer emulsions that have been stabilized with protective colloids, such as poly(vinyl alcohol). Examples of suitable microbicidal cationic compounds are: substituted pyridinium salts, substituted guanidine salts, tetrasubstituted ammonium salts, and polymeric cationic compounds.
    Type: Application
    Filed: November 29, 2001
    Publication date: July 25, 2002
    Inventors: John Joseph Rabasco, Dennis Sagl
  • Patent number: 5753753
    Abstract: This invention relates to an improved process for producing a vinyl alcohol containing polymer having a narrow particle size without substantial reactor fouling. The process for producing the vinyl alcohol containing polymer involves hydrolyzing a vinyl ester containing polymer, e.g., a polymer containing polymerized vinyl alkanoate units in the presence of an alcoholic medium and a hydrolysis catalyst in the presence of an alcoholic medium having finely divided, inert material such as an alkali metal carbonate dispersed therein. The finely divided inert material acts as nucleating sites for the polyvinyl alcohol as it precipitates from the solution during hydrolysis.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: May 19, 1998
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kien Van Phung, Dennis Sagl