Patents by Inventor Manabu Nagamitsu

Manabu Nagamitsu 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).

  • Vinyl chloride resin aggregate particles, process for producing same, and glove obtained using same
    Patent number: 8895657
    Abstract: The present invention provides: vinyl chloride-based resin aggregate particles that can be produced through a heat treatment while inhibiting scale formation within a vessel for the heat treatment and that provide a plastisol with non-infiltrating property and a satisfactory sagging property; a process for producing the particles; and a glove obtained using the particles. The vinyl chloride-based resin aggregated particles are obtained by flocculating a vinyl chloride-based resin through a two-stage heat treatment consisting of a primary heat treatment and a secondary heat treatment.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: November 25, 2014
    Assignee: Kaneka Corporation
    Inventors: Takashi Ueda, Kunihiko Matsumura, Morio Ishihara, Manabu Nagamitsu
  • VINYL CHLORIDE RESIN AGGREGATE PARTICLES, PROCESS FOR PRODUCING SAME, AND GLOVE OBTAINED USING SAME
    Publication number: 20140237702
    Abstract: The present invention provides: vinyl chloride-based resin aggregate particles that can be produced through a heat treatment while inhibiting scale formation within a vessel for the heat treatment and that provide a plastisol with non-infiltrating property and a satisfactory sagging property; a process for producing the particles; and a glove obtained using the particles. The vinyl chloride-based resin aggregate particles of the present invention are characterized in that the aggregate particles have a mean volume particle diameter of 10 to 60 ?m, the percentage of particles having a particle diameter of 10 to 60 ?m is at least 50 vol. %, and a plastisol containing 100 weight parts of the aggregate particles and 160 weight parts of di-2-ethylhexyl phthalate satisfies the relationship 3??70/?40?1000 where ?40 is the viscosity at a shear rate of 1 s?1 of the plastisol that has been retained at 40° C.
    Type: Application
    Filed: May 7, 2014
    Publication date: August 28, 2014
    Applicant: KANEKA CORPORATION
    Inventors: Takashi UEDA, Kunihiko MATSUMURA, Morio ISHIHARA, Manabu NAGAMITSU
  • VINYL CHLORIDE RESIN AGGREGATE PARTICLES, PROCESS FOR PRODUCING SAME, AND GLOVE OBTAINED USING SAME
    Publication number: 20130167287
    Abstract: The present invention provides: vinyl chloride-based resin aggregate particles that can be produced through a heat treatment while inhibiting scale formation within a vessel for the heat treatment and that provide a plastisol with non-infiltrating property and a satisfactory sagging property; a process for producing the particles; and a glove obtained using the particles. The vinyl chloride-based resin aggregate particles of the present invention are characterized in that the aggregate particles have a mean volume particle diameter of 10 to 60 ?m, the percentage of particles having a particle diameter of 10 to 60 ?m is at least 50 vol. %, and a plastisol containing 100 weight parts of the aggregate particles and 160 weight parts of di-2-ethylhexyl phthalate satisfies the relationship 3??70/?40?1000 where ?40 is the viscosity at a shear rate of 1 s?1 of the plastisol that has been retained at 40° C.
    Type: Application
    Filed: May 31, 2011
    Publication date: July 4, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Takashi Ueda, Kunihiko Matsumura, Morio Ishihara, Manabu Nagamitsu