Patents by Inventor Steven Daniel Gray

Steven Daniel Gray 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).

  • Polyolefin-based hot melt adhesives with improved properties
    Patent number: 11299657
    Abstract: A hot melt adhesive composition made from polypropylene copolymer or polypropylene impact copolymer, a polyolefin elastomer, a low density polyethylene, a tackifying resin, a plasticizer, and a nucleating agent. These adhesives are fast setting yet show an improved balance of mechanical properties making them useful for hygiene, construction, and packaging applications.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 12, 2022
    Assignee: BOSTIK, INC.
    Inventors: Steven Daniel Gray, Miao Hu
  • Polyolefin-based hot melt adhesives with improved processing and bonding performance
    Patent number: 10759978
    Abstract: A hot melt adhesive made from a blend of a polypropylene-based polymer, a polyolefin elastomer, and an amorphous polyolefin. These adhesives exhibit excellent molten and pre-set flow allowing them to wet out substrates yet develop properties needed to form and maintain strong bonds making them useful for hygiene, construction, and packaging applications.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: September 1, 2020
    Assignee: BOSTIK, INC.
    Inventors: Steven Daniel Gray, David Frederic Freund, Richard Edward Hamann, Miao Hu, Fabrice Nicolas-Henri Flores
  • Polypropylene impact copolymer based hot melt adhesive
    Patent number: 10307995
    Abstract: A hot melt adhesive using polypropylene impact copolymers that is particularly well suited for elastic attachment and stretch films in diaper structures. The hot melt adhesive composition is a blend of about 2.5% to about 30%, by weight, of a polypropylene impact copolymer; about 2.5% to about 30%, by weight, of an olefin based elastomer; about 10% to about 70%, by weight, of a tackifying resin having a softening point of at least about 80° C. and up to about 140° C.; about 0% to about 60%, by weight, of a plasticizer; and about 0.1% to about 5% of a stabilizer or antioxidant.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: June 4, 2019
    Assignee: Bostik, Inc.
    Inventors: Patrick John Czaplewski, Steven Daniel Gray
  • Polyolefin-Based Hot Melt Adhesives With Improved Processing And Bonding Performance
    Publication number: 20160102230
    Abstract: A hot melt adhesive made from a blend of a polypropylene-based polymer, a polyolefin elastomer, and an amorphous polyolefin. These adhesives exhibit excellent molten and pre-set flow allowing them to wet out substrates yet develop properties needed to form and maintain strong bonds making them useful for hygiene, construction, and packaging applications.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 14, 2016
    Applicant: BOSTIK, INC.
    Inventors: Steven Daniel Gray, David Frederic Freund, Richard Edward Hamann, Miao Hu, Fabrice Nicolas-Henri Flores
  • Polyolefin-Based Hot Melt Adhesives With Improved Properties
    Publication number: 20150299526
    Abstract: A hot melt adhesive composition made from polypropylene copolymer or polypropylene impact copolymer, a polyolefin elastomer, a low density polyethylene, a tackifying resin, a plasticizer, and a nucleating agent. These adhesives are fast setting yet show an improved balance of mechanical properties making them useful for hygiene, construction, and packaging applications.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Applicant: BOSTIK, INC.
    Inventors: Steven Daniel Gray, Miao Hu
  • Polypropylene impact copolymer based hot melt adhesive
    Publication number: 20150024649
    Abstract: A hot melt adhesive using polypropylene impact copolymers that is particularly well suited for elastic attachment and stretch films in diaper structures. The hot melt adhesive composition is a blend of about 2.5% to about 30%, by weight, of a polypropylene impact copolymer; about 2.5% to about 30%, by weight, of an olefin based elastomer; about 10% to about 70%, by weight, of a tackifying resin having a softening point of at least about 80° C. and up to about 140° C.; about 0% to about 60%, by weight, of a plasticizer; and about 0.1% to about 5% of a stabilizer or antioxidant.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Applicant: Bostik, Inc.
    Inventors: Patrick John Czaplewski, Steven Daniel Gray