Patents by Inventor Genta Okazaki

Genta Okazaki 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: 20230279275
    Abstract: The present invention relates to a hot melt adhesive composition comprising styrene triblock copolymer components, and related articles comprising at least one interior or exterior surface coated with the hot melt adhesive composition.
    Type: Application
    Filed: July 19, 2021
    Publication date: September 7, 2023
    Inventors: Genta OKAZAKI, Xin YE
  • Publication number: 20230235203
    Abstract: The invention relates to a hot melt adhesive composition comprising a polymer component, the polymer component comprising at least one styrene-butadiene-styrene block copolymer P having a styrene content from 35 to 50% by weight; a styrene-butadiene diblock content from 50 to 80% by weight; and a viscosity of a 15% by weight toluene solution at 25° C. of 20 to 40 mPa.s, and at least one styrene block copolymer other than a styrene-butadiene-styrene block copolymer, wherein said styrene-butadiene-styrene block copolymer P is at a content from 10 to 40% by weight relative to the total weight of the polymer component. The invention also relates to the use of said composition as an adhesive for bonding two substrates, and to articles comprising at least one interior or exterior surface coated with said composition.
    Type: Application
    Filed: May 4, 2021
    Publication date: July 27, 2023
    Inventors: Genta OKAZAKI, Xin YE
  • Publication number: 20180148616
    Abstract: A hot melt adhesive composition comprises a polymer blend based on a first polymer component having a low melting point and is selected from a polypropylene homopolymer and a copolymer of propylene and ethylene and mixtures thereof; a second polymer component comprising an amorphous polyolefin; and about 30% to about 75% by weight of a tackifying resin. The composition optionally further contains a plasticizer, an antioxidant, a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. The hot melt composition has a viscosity equal to or less than about 80,000 cP at 180° C. and is useful for a variety of industrial applications including bonding together the substrates used in disposable hygiene products, such as nonwoven layers, elastic attachments, and thermoplastic films (polyolefin, polylactic acid, etc.). The hot melt adhesive composition may be dually functional, serving as an elastic component adhesive and a construction adhesive.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 31, 2018
    Inventors: Genta OKAZAKI, Kimberly E. SECRIST, Steven D. GRAY
  • Patent number: 8163824
    Abstract: Multipurpose hot melt adhesive compositions which are suitable for use as both a construction and elastic attachment adhesive for disposable soft goods, such as disposable diapers, feminine sanitary napkins, surgical drapes, hospital pads, and adult incontinent products. The multipurpose hot melt adhesive compositions have a high level of creep resistance, high bond strength, and relatively low viscosity, and are composed of endblock resin in combination with a linear styrene-butadiene-styrene (SBS) copolymer wherein the copolymer has a styrene content greater than about 35% by weight, and preferably about 38% to about 50% by weight.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: April 24, 2012
    Assignee: Bostik, Inc.
    Inventors: Genta Okazaki, Mark D. Alper
  • Publication number: 20100249313
    Abstract: Multipurpose hot melt adhesive compositions which are suitable for use as both a construction and elastic attachment adhesive for disposable soft goods, such as disposable diapers, feminine sanitary napkins, surgical drapes, hospital pads, and adult incontinent products. The multipurpose hot melt adhesive compositions have a high level of creep resistance, high bond strength, and relatively low viscosity, and are composed of endblock resin in combination with a linear styrene-butadiene-styrene (SBS) copolymer wherein the copolymer has a styrene content greater than about 35% by weight, and preferably about 38% to about 50% by weight.
    Type: Application
    Filed: April 22, 2010
    Publication date: September 30, 2010
    Applicant: BOSTIK, INC.
    Inventors: Genta Okazaki, Mark D. Alper
  • Publication number: 20080081858
    Abstract: Multipurpose hot melt adhesive compositions which are suitable for use as both a construction and elastic attachment adhesive for disposable soft goods, such as disposable diapers, feminine sanitary napkins, surgical drapes, hospital pads, and adult incontinent products. The multipurpose hot melt adhesive compositions have a high level of creep resistance, high bond strength, and relatively low viscosity, and are composed of endblock resin in combination with a linear styrene-butadiene-styrene (SBS) copolymer wherein the copolymer has a styrene content greater than about 35% by weight, and preferably about 38% to about 50% by weight.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Inventor: Genta Okazaki