Patents Examined by Olga Asinossky
  • Patent number: 6316579
    Abstract: A thermoplastic resin composition can be obtained by adding about 0.1 to 20 parts by weight of a diene-series block copolymer (2) to 100 parts by weight of a resin composition containing a polycarbonate-series resin (1) as a basic component of which the proportion of terminal hydroxy groups relative to the whole of the terminals is 1 mole % or above (about 5 to 40 mole %). The polycarbonate-series resin base may further comprise a thermoplastic resin composition (3) such as a rubber-modified styrenic resin. The block copolymer component (2) includes an epoxy-modified block copolymer, etc. When added an organophosphorus compound as a flame retardant (4), or a fluorine-containing resin as a flame-retartant auxiliary (5), a halogen-free flame-retardant thermoplastic resin composition can be obtained. A thermoplastic resin with an improved flowability and impact strength can be obtained by modifying a polymer blend of the polycarbonate-series resin and the styrenic-series resin in quality.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: November 13, 2001
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Masahiro Katayama, Masaaki Ito, Yoshihiro Otsuka
  • Patent number: 6268425
    Abstract: This invention is directed to the preparation of alloy articles consisting essentially of 65 wt. % or more glass and high temperature organic thermoplastic or thermosetting polymers having working temperatures which are compatible with that of the glass and/or the precursor glass for the glass-ceramic. The glass and polymer are combined at the working temperature to form an intimate mixture; i.e., the glass and polymer are in a sufficiently fluid state to be blended together to yield a body exhibiting an essentially uniform, fine-grained microstructure wherein, desirably, there is at least partial miscibility and/or a reaction between the glass and the polymer to promote adhesion and bonding therebetween. A body is shaped from the mixture and cooled to room temperature.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: July 31, 2001
    Assignee: Corning Incorporated
    Inventors: Paul D. Frayer, Roy J. Monahan, Michelle D. Pierson
  • Patent number: 6221969
    Abstract: Disclosed is a method for producing a rubber-modified styrenic resin. The method includes the steps of (a) producing a rubber solution by dissolving a rubber polymer in a vinyl monomer; (b) producing a rubber composition by continuously supplying the above rubber solution in a first reactor to polymerize the rubber polymer with the vinyl monomer at a reaction temperature of 120°-145° C. to perform phase inversion of the rubber polymer, thereby producing the polymer of conversion ratio of 10-40 wt %, and realized through 50-99% of rubber particles having an average particle diameter of 0.1-0.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: April 24, 2001
    Assignee: LG Chemical, Ltd.
    Inventors: Oh-jin Kwon, Yong-jun Kim, Hyung-sub Lee
  • Patent number: 6191233
    Abstract: A fluorine-containing triallyl isocyanurate of the formula [I]: wherein at least one of X and Y is a fluorine atom, and the other is a hydrogen atom or a fluorine atom, exhibits good curing properties even when it is used as a crosslinking aid for elastomers which are required to have good heat resistance, such as in particular, fluororubbers, and provides cured materials having good mechanical properties and heat resistance.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: February 20, 2001
    Assignee: Daikin Industries Ltd.
    Inventors: Mitsuru Kishine, Yutaka Ueta, Yoshiko Mori, Satoshi Oishi, Katsuhiko Iseki, Yasuji Iwasaki
  • Patent number: 6011107
    Abstract: A coating composition for producing a water washable, protective coating, comprising, by weight, 10-50% of a mixture of at least two acrylic polymers each having different molecular weights, acid numbers, and glass transition temperatures. The composition includes water and an alkali, in an amount sufficient to maintain the composition at a pH in the range of 7.5 to 9.5 and is further characterized in that the average molecular weight of the mixture of the at least two acrylic polymers is in the range of approximately 35,000 to 100,000. The average acid number of the mixture is in the range of approximately 65 to 150 and the glass transition temperature of a coating produced by the evaporation of the water from the composition is in the range of 0 to 70.degree. C.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: January 4, 2000
    Assignee: Gage Products Company
    Inventors: Jeffrey Maxwell, Xenophon G. Saquet
  • Patent number: 5567754
    Abstract: Thermoplastic concentrates comprising inorganic pigments, such as titanium dioxide, treated with a partial ester polyol and unsaturated monocarboxylic acid treating agent, of the formula R(OH).sub.x COOR', wherein R is an alkyl or aryl radical containing from about 2 to about 20 carbon atoms, R' is an unsaturated alkyl radical containing from about 6 to about 20 carbon atoms, and x is a number from about 2 to about 6, are disclosed. Such treatment improves the dispersibility of the pigments in thermoplastic resins. The treatment also enables the production of thermoplastic concentrates comprising a high percentage of treated inorganic pigment dispersed in a thermoplastic resin.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: October 22, 1996
    Assignee: Kerr-McGee Corporation
    Inventor: Rodney D. Stramel