Patents by Inventor John Richard Boylan

John Richard Boylan 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: 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: 10094068
    Abstract: The invention provides a polymer dispersion for paper coating compositions, obtainable by means of a radically initiated, aqueous emulsion polymerization in the presence of one or more emulsifiers and optionally protective colloids, of a) 50 to 93% by weight of at least one vinyl ester of an alkanoic acid with 1 to 12 C-atoms, whose homopolymer has a glass transition temperature Tg of below about 350° K, b) 2 to 30% by weight of ethylene, c) 5 to 20% by weight of at least one monomer whose homopolymer has a glass transition temperature Tg of at least about 350° K, d) 0.1 to 2% by weight of ethylenically unsaturated silane monomers, e) 0 to 5% by weight of further ethylenically unsaturated monomers that are copolymerizable with vinyl acetate and ethylene, based in each case on the total weight of the monomers used for the polymerization, with the data in % by weight summing in each case to 100% by weight.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: October 9, 2018
    Assignee: Wacker Chemical Corporation
    Inventors: Christian Leonard Daniels, John Richard Boylan, Ronald Bernal Jones
  • Publication number: 20170175335
    Abstract: The invention provides a polymer dispersion for paper coating compositions, obtainable by means of a radically initiated, aqueous emulsion polymerization in the presence of one or more emulsifiers and optionally protective colloids, of a) 50 to 93% by weight of at least one vinyl ester of an alkanoic acid with 1 to 12 C-atoms, whose homopolymer has a glass transition temperature Tg of below about 350° K., b) 2 to 30% by weight of ethylene, c) 5 to 20% by weight of at least one monomer whose homopolymer has a glass transition temperature Tg of at least about 350° K., d) 0.1 to 2% by weight of ethylenically unsaturated silane monomers, e) 0 to 5% by weight of further ethylenically unsaturated monomers that are copolymerizable with vinyl acetate and ethylene, based in each case on the total weight of the monomers used for the polymerization, with the data in % by weight summing in each case to 100% by weight.
    Type: Application
    Filed: March 27, 2015
    Publication date: June 22, 2017
    Applicant: WACKER CHEMICAL CORPORATION
    Inventors: CHRISTIAN LEONARD DANIELS, JOHN RICHARD BOYLAN, RONALD BERNAL JONES
  • Patent number: 9340908
    Abstract: An aqueous composition includes polyvinyl alcohol, an acid having a pKa of at most 4.0, and a dispersion of a polymer in which vinyl acetate units constitute at least 60 wt % of the polymer. The polymer does not contain units of any N-methylol-containing monomer, and at least a portion of the polyvinyl alcohol is present in the form of an emulsion stabilizer for the polymer. The wet strength of a fibrous nonwoven substrate can be increased by applying one or more aqueous compositions that together include polyvinyl alcohol, an acid having a pKa of at most 4.0, and a dispersion of a polymer as described above, followed by a final drying step. A fibrous nonwoven article can be prepared in this way.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 17, 2016
    Assignee: WACKER CHEMICAL CORPORATION
    Inventors: John Richard Boylan, Conrad William Perry
  • Publication number: 20130149928
    Abstract: An aqueous composition includes a blend of: a) an aqueous dispersion of a vinyl acetate ethylene or vinyl acetate polymer, stabilized by polyvinyl alcohol and optionally also by a surfactant, wherein the polymer does not include units of any N-methylol-containing monomer; and b) an aqueous dispersion of an N-methylol-containing vinyl acetate ethylene or vinyl acetate polymer, stabilized with a surfactant, polyvinyl alcohol or a combination thereof. A method of increasing the wet strength of a fibrous nonwoven substrate includes applying to the substrate the abovementioned aqueous composition, followed by a drying step. A fibrous nonwoven article is produced.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Applicant: Wacker Chemical Corporation
    Inventors: John Richard Boylan, Conrad William Perry
  • Publication number: 20130149927
    Abstract: An aqueous composition includes polyvinyl alcohol, an acid having a pKa of at most 4.0, and a dispersion of a polymer in which vinyl acetate units constitute at least 60 wt % of the polymer. The polymer does not contain units of any N-methylol-containing monomer, and at least a portion of the polyvinyl alcohol is present in the form of an emulsion stabilizer for the polymer. The wet strength of a fibrous nonwoven substrate can be increased by applying one or more aqueous compositions that together include polyvinyl alcohol, an acid having a pKa of at most 4.0, and a dispersion of a polymer as described above, followed by a final drying step. A fibrous nonwoven article can be prepared in this way.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Applicant: Wacker Chemical Corporation
    Inventors: John Richard Boylan, Conrad William Perry
  • 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
  • Publication number: 20120214007
    Abstract: A composition for coating paper includes at least one pigment selected from the group consisting of polymeric pigments, aluminosilicates, calcium carbonate, titanium dioxide, talc, barium sulfate, zinc oxide, aluminum trihydrate, amorphous silica and silicates; wherein the pigment is dispersed in an aqueous dispersion of a polymeric binder that is a copolymer of vinyl acetate, ethylene, at least one ethylenically unsaturated sulfonic acid or salt thereof and optionally one or more other monomers, wherein vinyl acetate units constitute in a range of 70-90 wt % of the polymeric binder and ethylene units constitute in a range of 10-30 wt % of the polymeric binder; and wherein the polymeric binder has a mean particle size in a range from 0.1 ?m to 0.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 23, 2012
    Applicant: Wacker Chemical Corporation
    Inventors: Christian Leonard Daniels, John Richard Boylan
  • Publication number: 20120028527
    Abstract: A low-formaldehyde binder composition for increasing wet and dry tensile strength of a nonwoven substrate includes: a) an aqueous vinyl acetate ethylene copolymer dispersion employing a nonionic, cationic or amphoteric dispersion stabilizer, b) chitosan, and c) one or more surfactants not including the dispersion stabilizer. The binder composition has a free formaldehyde content no greater than 10 ppm, at least 90 wt % of the one or more surfactants are nonionic, cationic, amphoteric or a combination of these, and the copolymer in the dispersion is free of formaldehyde-generating moieties.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: Wacker Chemical Corporation
    Inventors: John Richard Boylan, Conrad William Perry
  • Patent number: 7501471
    Abstract: A waterborne hydrophobic barrier coating formulation comprising a blend of a vinyl acetate-ethylene (VAE) polymer emulsion and a paraffin wax emulsion, wherein a dried coating of the blend on a substrate, such as a nonwoven web, an absorbent pad, or a textile, and dried, has a hydrostatic head barrier sufficient to prevent passage of fluids but allow passage of water vapor through it. A multi-layer material comprising at least one layer of a nonwoven web, an absorbent pad, or a textile, and at least one layer of a blend of a VAE polymer emulsion and paraffin wax emulsion.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: March 10, 2009
    Assignee: Wacker ChemicalCorporation
    Inventor: John Richard Boylan
  • 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
  • Patent number: 7332450
    Abstract: A blend comprising a paraffin wax emulsion and a polymer emulsion, wherein the polymer contains polymerized units of one or more C1-12 ester of acrylic or methacrylic acid and a vinyl ester of a C8-13 neo-acid. When the blend is applied as a coating to a substrate, such as a nonwoven web, a nonwoven absorbent pad, a nonwoven textile, or a textile fabric, and dried, it has a hydrostatic head barrier sufficient to prevent passage of aqueous fluids but allow passage of water vapor through it. A multi-layer material comprising at least one layer of a nonwoven web, an absorbent pad, or a textile, and at least one layer of the above described blend.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: February 19, 2008
    Assignee: Air Products Polymers, L.P.
    Inventor: John Richard Boylan
  • Patent number: 7247586
    Abstract: This invention is directed to an improvement in binders particularly suited for use in preparing nonwoven products and to the nonwoven products. The improved binders comprise a blend of a vinyl chloride (VCl) polymer emulsion and a self crosslinkable vinyl acetate-ethylene-N-methylolacrylamide (VAE-NMA) polymer emulsion. The blend of the VCl polymer emulsion and the VAE-NMA polymer emulsion can be applied to cellulose and cellulose/synthetic nonwoven substrates and cured in the absence of an acid catalyst to provide a self-sustaining web having excellent wet strength performance.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: July 24, 2007
    Assignee: Air Products Polymers, L.P.
    Inventors: John Richard Boylan, Conrad William Perry
  • Patent number: 7153791
    Abstract: This invention is directed to an improvement in binders particularly suited for use in preparing nonwoven products and to the nonwoven products. The improved binders comprise a blend of emulsion polymerized ethylene-vinyl chloride (EVCl) polymer and an emulsion polymerized self crosslinkable vinyl acetate-ethylene-N-methylolacrylamide (VAE-NMA) polymer. The blends of the EVCl polymer emulsion and the VAE-NMA polymer emulsion can be applied to cellulose and cellulose/synthetic nonwoven substrates and cured in the absence of an acid catalyst to provide a self-sustaining web having excellent wet strength performance. The blends of EVCl and VAE-NMA polymers do not require an acid catalyst to facilitate cure.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: December 26, 2006
    Assignee: Air Products Polymers, L.P.
    Inventors: John Richard Boylan, Conrad William Perry
  • Publication number: 20040102114
    Abstract: A blend comprising a paraffin wax emulsion and a polymer emulsion, wherein the polymer contains polymerized units of one or more C1-12 ester of acrylic or methacrylic acid and a vinyl ester of a C8-13 neo-acid. When the blend is applied as a coating to a substrate, such as a nonwoven web, a nonwoven absorbent pad, a nonwoven textile, or a textile fabric, and dried, it has a hydrostatic head barrier sufficient to prevent passage of aqueous fluids but allow passage of water vapor through it. A multi-layer material comprising at least one layer of a nonwoven web, an absorbent pad, or a textile, and at least one layer of the above described blend.
    Type: Application
    Filed: July 17, 2003
    Publication date: May 27, 2004
    Inventor: John Richard Boylan
  • Publication number: 20030219613
    Abstract: A waterborne hydrophobic barrier coating formulation comprising a blend of a poly(vinyl acetate) emulsion and a paraffin wax emulsion or a vinyl acetate-ethylene (VAE) polymer emulsion and a paraffin wax emulsion which, when applied to a substrate, such as a nonwoven web, an absorbent pad, or a textile, and dried, has a hydrostatic head barrier sufficient to prevent passage of fluids but allow passage of water vapor through it. A multi-layer material comprising at least one layer of a nonwoven web, an absorbent pad, or a textile, and at least one layer of a blend of a poly(vinyl acetate) emulsion and a paraffin wax emulsion or a VAE polymer emulsion and paraffin wax emulsion. The emulsion blend, after drying, has a hydrostatic head barrier sufficient to prevent passage of fluids through it but allow passage of water vapor.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 27, 2003
    Applicant: Air Products Polymers, L.P., a limited partnership
    Inventor: John Richard Boylan
  • Publication number: 20020189774
    Abstract: This invention relates to an improvement in coatings particularly suited for the preparation of paper products having an ink jet coating applied thereto and to the resulting paper products. The improvement in ink jet coatings resides in the incorporation of a primary amine functional polyvinyl alcohol (PVOH/PVNH2) as a polymeric binder. One form of an amine functional polyvinyl alcohol is produced by the hydrolysis of a copolymer of vinyl acetate and N-vinylformamide or vinyl acetate and allyl amine. Another is the polyvinyl butyral derivative of polyvinyl alcohol which typically is formed by the reaction of a 4-amino alkyl aldehyde dialkyl acetal, such as 4-aminobutyraldehyde dimethyl acetal with polyvinyl alcohol.
    Type: Application
    Filed: March 8, 2001
    Publication date: December 19, 2002
    Inventor: John Richard Boylan