Patents Assigned to Sanko Chemical Industry Co., Ltd.
  • Patent number: 10611896
    Abstract: An antistatic composition contains an ambient-temperature molten lithium salt dihydrate, and one of a polymerizable compound, a plastic resin, an elastomer and an adhesive resin in which the lithium salt dihydrate is dispersed. The lithium salt dihydrate contains two types of lithium salts with different molecular weights from each other. The two types of the lithium salts are selected from a group of lithium salts each containing an anion having a fluoro group and a sulfonyl group.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: April 7, 2020
    Assignee: SANKO CHEMICAL INDUSTRY CO., LTD.
    Inventors: Noriaki Fujihana, Yoshiharu Tatsukami
  • Publication number: 20180273725
    Abstract: An antistatic composition contains an ambient-temperature molten lithium salt dihydrate, and one of a polymerizable compound, a plastic resin, an elastomer and an adhesive resin in which the lithium salt dihydrate is dispersed. The lithium salt dihydrate contains two types of lithium salts with different molecular weights from each other. The two types of the lithium salts are selected from a group of lithium salts each containing an anion having a fluoro group and a sulfonyl group.
    Type: Application
    Filed: October 19, 2017
    Publication date: September 27, 2018
    Applicant: Sanko Chemical Industry Co., Ltd.
    Inventors: Noriaki Fujihana, Yoshiharu Tatsukami
  • Patent number: 8501044
    Abstract: An antistatic composition containing various types of polymers such as a polyamide, an aliphatic polyester, an elastomer thereof and a polyurethane elastomer, and a metal salt in specific amounts, and preferably, an antistatic composition in which an additive component such as an organic compound which has an —{O(AO)n}— group (A represents an alkylene group having 2 to 4 carbon atoms, and n represents an integer of 1 to 7) and all molecular chain terminals of which are CH3 and/or CH2 groups is compounded as needed.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: August 6, 2013
    Assignees: Sanko Chemical Industry Co., Ltd., Riken Technos Corporation
    Inventors: Noriaki Fujihana, Yoshiharu Tatsukami, Masaki Enomoto, Ikuo Ohkoshi
  • Patent number: 7375150
    Abstract: An antistatic composition that is excellent in thermo stability, is free from the problem of bleeding-out, exhibits its effect independently of humidity, has immediate effectiveness, and also exhibits excellent and persistent antistatic properties, and a method for producing the composition are provided. The antistatic composition comprises a predetermined alkali metal salt or alkaline earth metal salt, and resin.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 20, 2008
    Assignee: Sanko Chemical Industry Co., Ltd.
    Inventor: Noriaki Fujihana
  • Publication number: 20070295717
    Abstract: The present invention relates to a microwave chemical reaction apparatus characterized by comprising a means for heating a reaction liquid, which is capable of irradiating microwaves while controlling the output power according to the temperature of the reaction liquid, together with a means for forcibly cooling the reaction liquid from the outside, and being capable of precisely controlling the reaction temperature. The microwave chemical reaction apparatus can control the reaction temperature precisely, for example, within ±1° C. of a predetermined temperature, and can be applied to fine chemical reactions. Further, since reactions proceed rapidly in such an apparatus, mass production can be achieved by a relatively small-sized reaction apparatus.
    Type: Application
    Filed: April 19, 2005
    Publication date: December 27, 2007
    Applicants: SANKO CHEMICAL INDUSTRY CO., LTD., SHIKOKU INSTRUMENTATION CO., LTD.
    Inventors: Sakae Horikawa, Hidekazu Shiota, Hirotaka Enokida, Masaki Fujimoto, Katsunori Nakamura
  • Patent number: 7226965
    Abstract: The present invention provides a polymeric-type antistatic agent containing a polymer composition consisting of a polymeric-type antistatic agent containing a resin or/and an elastomer as a main component thereof; or/and a thermoplastic resin having a polar group or/and an elastomer having the polar group. At least one kind of an anion-containing salt, having a fluoro group and a sulfonyl group, is added to the polymer composition without intermediary of a medium consisting of a low-molecular-weight polyether-containing compound or a low-molecular-weight polar compound whose number-average molecular weight is not more than 5000. The present invention also provides a composition, for a conductive roller or the like, containing polymer components and the polymeric-type antistatic agent dispersed in the polymer components.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: June 5, 2007
    Assignees: Sumitomo Rubber Industries, Ltd., Sanko Chemical Industry Co., Ltd.
    Inventors: Takayuki Hattori, Katsumi Terakawa, Tetsuo Mizoguchi, Kenichi Uesaka, Toshiaki Sakaki, Hiromasa Okubo, Noriaki Fujihana, Yoshiharu Tatsukami
  • Patent number: 7192538
    Abstract: An antistatic composition containing various types of polymers such as a polyamide, an aliphatic polyester, an elastomer thereof and a polyurethane elastomer, and a metal salt in specific amounts, and preferably, an antistatic composition in which an additive component such as an organic compound which has an —{O(AO)n}— group (A represents an alkylene group having 2 to 4 carbon atoms, and n represents an integer of 1 to 7) and all molecular chain terminals of which are CH3 and/or CH2 groups is compounded as needed.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: March 20, 2007
    Assignees: Sanko Chemical Industry Co., Ltd., Riken Technos Corporation
    Inventors: Noriaki Fujihana, Yoshiharu Tatsukami, Masaki Enomoto, Ikuo Ohkoshi