Patents by Inventor David P. Keuler

David P. Keuler 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: 20230313004
    Abstract: A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.
    Type: Application
    Filed: April 24, 2023
    Publication date: October 5, 2023
    Inventors: Monina D. KANDERSKI, Michael D. VITRANO, David P. KEULER, Deepa PUTHANPARAMBIL, Jacqueline M. LAMBERT, Brian J. MORROW
  • Patent number: 11661537
    Abstract: A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: May 30, 2023
    Assignee: Bostik, Inc.
    Inventors: Monina D. Kanderski, Michael D. Vitrano, David P. Keuler, Deepa Puthanparambil, Jacqueline M. Lambert, Brian J. Morrow
  • Publication number: 20220403215
    Abstract: A roofing underlayment capable of adhering to a roof deck comprising: (a) a roofing membrane having a first and a second major surface; and (b) a pressure-sensitive adhesive disposed on the first major surface of the roofing membrane and comprising: (i) at least one of butyl rubber or polyisobutylene; (ii) a first liquid plasticizer, preferably polybutene; and (iii) a tackifier, wherein the Tg of the adhesive is at most about 100 C. The adhesive provides high bond strength and excellent long-term heat aging, weathering resistance, as well as good low temperature properties while providing a moisture proof seam. A method for making the roofing underlayment includes applying the adhesive to the membrane then applying a release liner over the adhesive layer. A method for using the roofing underlayment comprises removing the release liner then adhering the underlayment to the roof deck by contacting the first to the roof deck.
    Type: Application
    Filed: August 25, 2020
    Publication date: December 22, 2022
    Inventors: David P. Keuler, Cory C. Bausch, Mark D. Alper
  • Publication number: 20200079981
    Abstract: A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 12, 2020
    Inventors: Monina D. Kanderski, Michael D. VITRANO, David P. KEULER, Deepa PUTHANPARAMBIL, Jacqueline M. LAMBERT, Brian J. MORROW
  • Patent number: 9404004
    Abstract: A hot applied, non-crosslinking, non-butyl, sealant. These sealants are composed of olefin polymers, styrenic block copolymers, an ethylene vinyl acetate copolymer, tackifying resins, plasticizers, and preferably inorganic fillers, and organosilane adhesion promoters. Optionally, the sealant may include UV absorbers, antioxidants, pigments, and the like. The sealants are suitable for use as edge sealants for insulated glass (IG) window units.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: August 2, 2016
    Assignee: BOSTIK, INC.
    Inventors: Patrick John Czaplewski, David P. Keuler, Michael D. Vitrano
  • Publication number: 20160177119
    Abstract: A hot applied, non-crosslinking, non-butyl, sealant. These sealants are composed of olefin polymers, styrenic block copolymers, an ethylene vinyl acetate copolymer, tackifying resins, plasticizers, and preferably inorganic fillers, and organosilane adhesion promoters. Optionally, the sealant may include UV absorbers, antioxidants, pigments, and the like. The sealants are suitable for use as edge sealants for insulated glass (IG) window units.
    Type: Application
    Filed: December 28, 2012
    Publication date: June 23, 2016
    Applicant: Bostik, Inc.
    Inventors: Patrick John Czaplewski, David P. Keuler, Michael D. Vitrano
  • Publication number: 20140187695
    Abstract: A hot applied, non-crosslinking, non-butyl, sealant. These sealants are composed of olefin polymers, styrenic block copolymers, an ethylene vinyl acetate copolymer, tackifying resins, plasticizers, and preferably inorganic fillers, and organosilane adhesion promoters. Optionally, the sealant may include UV absorbers, antioxidants, pigments, and the like. The sealants are suitable for use as edge sealants for insulated glass (IG) window units.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Bostik, Inc.
    Inventors: David P. Keuler, Patrick John Czaplewski, Michael Vitrano