Patents by Inventor Timothy W. Roska

Timothy W. Roska 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: 10844253
    Abstract: A hot melt adhesive composition that includes at least 40% by weight of an unmodified, semi-crystalline propylene polymer that includes at least 50% by weight propylene, and at least 15% by weight wax.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: November 24, 2020
    Assignee: H.B. Fuller Company
    Inventors: Thomas F. Kauffman, Scott C. Schmidt, Claudia Mosanu, Timothy W. Roska, Amanda L. Schmit, Sharf U. Ahmed, Gary J. Roy
  • Patent number: 10414957
    Abstract: This invention claims low application temperature hot melt adhesive compositions including at least about 15% by weight of a first styrene block copolymer with a melt flow rate of at least about 15 g/10 minutes (190° C., 2.16 kgs) and a diblock content of no greater than about 10% by weight.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: September 17, 2019
    Assignee: H.B. Fuller Company
    Inventors: Ameara S. Mansour, Kevin P. Davis, David B. Malcolm, Mark S. Kroll, Steven R. Vaughan, Timothy W. Roska, Evan Yuan
  • Patent number: 10392537
    Abstract: A hot melt adhesive composition that includes at least 35% polymer, from about 15% by weight, to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from 0 mole % to about 37.5% by weight of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g, from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm3, and from 18% by weight to about 37% by weight of a wax component that exhibits a melting point greater than 80° C. and a heat of fusion of at least 200 J/g.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 27, 2019
    Assignee: H.B. Fuller Company
    Inventors: Thomas F. Kauffman, Scott C. Schmidt, Kim M. Larson, Amanda L. Schmit, Timothy W. Roska
  • Publication number: 20180002578
    Abstract: A hot melt adhesive composition that includes at least 35% polymer, from about 15% by weight, to no greater than 75% by weight propylene polymer derived from at least 50% by weight propylene and from 0 mole % to about 37.5% by weight of an alpha-olefin comonomer other than propylene, the propylene polymer exhibiting a heat of fusion of from about 5 Joules per gram (J/g) to 60 J/g, from 5% by weight to about 50% by weight ethylene alpha-olefin copolymer derived from at least 50% by weight ethylene and at least one alpha-olefin comonomer having at least three carbon atoms, the ethylene alpha-olefin copolymer having a density of no greater than 0.90 g/cm3, and from 18% by weight to about 37% by weight of a wax component that exhibits a melting point greater than 80° C. and a heat of fusion of at least 200 J/g.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Thomas F. Kauffman, Scott C. Scmidt, Kim M. Larson, Amanda L. Schmit, Timothy W. Roska
  • Publication number: 20160272856
    Abstract: This invention claims low application temperature hot melt adhesive compositions including at least about 15% by weight of a first styrene block copolymer with a melt flow rate of at least about 15 g/10 minutes (190° C., 2.16 kgs) and a diblock content of no greater than about 10% by weight.
    Type: Application
    Filed: March 16, 2016
    Publication date: September 22, 2016
    Inventors: Ameara S. Mansour, Kevin P. Davis, David B. Malcolm, Mark S. Kroll, Steven R. Vaughan, Timothy W. Roska
  • Publication number: 20160130480
    Abstract: A hot melt adhesive composition that includes at least 40% by weight of an unmodified, semi-crystalline propylene polymer that includes at least 50% by weight propylene, and at least 15% by weight wax.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 12, 2016
    Inventors: Thomas F. Kauffman, Scott C. Schmidt, Claudia Mosanu, Timothy W. Roska, Amanda L. Schmit, Sharf U. Ahmed, Gary L. Roy
  • Patent number: 8765851
    Abstract: A hot melt adhesive composition that includes a first copolymer that includes the reaction product of a functionalized polyethylene, a propylene-alpha-olefin polymer that includes at least 50 mole % propylene and has a viscosity of no greater than 10,000 centipoise at 190° C., a ratio of z average molecular weight (Mz) to number average molecular weight (Mn) (Mz/Mn) of greater than 20, and a ratio of Mz to weight average molecular weight (Mw) (Mz/Mw) of greater than 3.0, and a free radical initiator.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: July 1, 2014
    Assignee: H.B. Fuller Company
    Inventors: Richard A. Miller, Kevin Davis, Stephen M. Willging, Sharf U. Ahmed, Timothy W. Roska
  • Publication number: 20120329929
    Abstract: A hot melt adhesive composition that includes a first copolymer that includes the reaction product of a functionalized polyethylene, a propylene-alpha-olefin polymer that includes at least 50 mole % propylene and has a viscosity of no greater than 10,000 centipoise at 190° C., a ratio of z average molecular weight (Mz) to number average molecular weight (Mn) (Mz/Mn) of greater than 20, and a ratio of Mz to weight average molecular weight (Mw) (Mz/Mw) of greater than 3.0, and a free radical initiator.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 27, 2012
    Applicant: H.B. Fuller Company
    Inventors: Richard A. Miller, Kevin Davis, Stephen M. Willging, Sharf U. Ahmed, Timothy W. Roska
  • Publication number: 20120329353
    Abstract: A hot melt adhesive composition that includes a non functionalized metallocene catalyzed polymer and a second polymer selected from the group including amorphous poly alpha olefins, uni-modal metallocene catalyzed polymers, hydrogenated styrenic block copolymers and combinations thereof and nonwoven and packaging articles including the same.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 27, 2012
    Applicant: H.B. Fuller Company
    Inventors: Kevin Davis, Timothy W. Roska, Barry Snyder
  • Publication number: 20100276057
    Abstract: An ethylene-butene copolymer prepared from ethylene monomer and butene monomer, the ethylene-butene copolymer including at least 78 mole % ethylene and no greater than 22 mole % butene, and a hot melt adhesive composition including from 40% by weight to 90% by weight of the ethylene-butene copolymer, tackifying agent, and wax.
    Type: Application
    Filed: April 23, 2010
    Publication date: November 4, 2010
    Applicant: H.B. Fuller Company
    Inventors: Steven W. Albrecht, Michelle C. Kueppers, Stephen M. Willging, Timothy W. Roska, Vitaly Rogachevsky
  • Publication number: 20100084431
    Abstract: A dispensing unit, which utilizes a chemical reaction or phase transition to soften a material into a flowable state, is described. The material comprises an adhesive, sealant or caulk.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 8, 2010
    Applicant: H.B. Fuller Company
    Inventors: Richard A. Miller, Stephen G. Rippe, Timothy W. Roska, Steven A. Jorissen, Gregory W. Schad
  • Patent number: 7173076
    Abstract: The present invention includes methods and compositions relating to a hot melt adhesive that includes ethylene methyl methacrylate and a tackifying resin.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: February 6, 2007
    Assignee: H.B. Fuller Licensing & Financing Inc
    Inventors: Steven W. Albrecht, Kazuya Suzuki, David B. Malcolm, Timothy W. Roska, Kathryn A. Coleman