Patents Examined by Steven Kumiega
  • Patent number: 5061767
    Abstract: A polymer composite, a method of making a polymer composite and a polymer composite membrane. The polymer composite comprises a uniform dispersion of hydrophobic polymeric particles in a continuous phase of a hydrophilic polymer. The new method of forming a polymer composite includes the formation of a concentrated emulsion of a hydrophilic monomer and a hydrophobic monomer and heating the concentrated emulsion at a predetermined temperature. The polymer composites of this invention may be useful as permselective membranes.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: October 29, 1991
    Assignee: State University of New York
    Inventors: Eli Ruckenstein, Jun S. Park
  • Patent number: 5028661
    Abstract: Compounds useful as adhesion promoters for thermally cured thiolene adhesives include a) acrylic or norbornene acid phosphate esters such as ##STR1## b) maleic, acrylic, methacrylic, norbornene dicarboxylic, and fumaric acids and half acid esters and peresters of maleic fumaric and norbornene dicarboxylic acids; and c) norbornene, acrylic or methacrylic silanes having two or three hydrolyzable groups bound to the silicon atom thereof, such as 5-(triacetoxysilyl) norbornene.The adhesion promoters may be employed as surface primers for conventional thiolene compositions. Alternatively the thiolene compositions themselves may be modified by addition of 0.1 to 10% by weight of the adhesion promoter. Preferred thiolene compositions employ norbornene functional ene ingredients.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: July 2, 1991
    Assignee: Loctite Corporation
    Inventors: Paul J. Clark, Anthony F. Jacobine, David M. Glaser
  • Patent number: 4994520
    Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transfer, coating agent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: February 19, 1991
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ideda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori, Yoshihiro Arita, Kiyoshi Kawamura, Kenji Minami, Yoshinori Sano
  • Patent number: 4983681
    Abstract: Colored microfine globular particles are produced by causing carbon black to react with a polymer capable of reacting with the carbon black thereby forming a carbon black-graft polymer, dispersing this carbon black-graft polymer in a polymerizable monomer component, and then polymerizing the polymerizable monomer component. These particles, in the unmodified form, are usable as a toner for the development of images of static charge and, in a form incorporated in a varying component, are usable such as in resin composition, coating composition, thermosensitive transfer ink ribbon coating agent, thermosensitive transfer ink, or back-coating agent for magnetic recording medium.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: January 8, 1991
    Assignee: Nippon Shokubai Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Kenji Minami, Iwao Fukikawa