Patents Assigned to Shinkohjinkasei Co., Ltd.
  • Method of adsorbing pyrogens
    Patent number: 5401499
    Abstract: An insoluble material for adsorbing a pyrogen comprising a polymer of an aziridine compound. According to the present invention, a large mount of the pyrogen can be easily removed from a solution containing pyrogen, and a large amount of the material for adsporbing the pyrogen can be prepared in easy steps. Therefore, the adsorbing material can greatly contribute to the preparation of medicines.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: March 28, 1995
    Assignee: Shinkohjinkasei Co., Ltd.
    Inventors: Chuichi Hirayama, Keijun Hiraoka, Sunao Morimoto
  • High functional regenerated cellulose composition
    Patent number: 4981515
    Abstract: A regenerated cellulose composition having excellent adsorptivity and flame resistance prepared by a process in which viscose, a solvent-adsorbing active carbon in the form of an aqueous dispersion and a specific phosphorus flame retarder are extruded into a coagulation bath to regenerate cellulose which is dried at a temperature not lower than the boiling point of the solvent, whereby the adsorptivity of active carbon is maintained at a high level while a flame resistance is imparted to cellulose.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: January 1, 1991
    Assignee: Shinkohjinkasei Co., Ltd.
    Inventors: Keijun Hiraoka, Sunao Morimoto, Itaru Kimura