Patents by Inventor Yasutoshi Isayama

Yasutoshi Isayama 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).

  • Tertiary aminoalcohol ane process for producing the same, and, polyurethane and process for producing the same
    Patent number: 5444099
    Abstract: A tertiary aminoalcohol having a tert-amino group(s) in the main chain and hydroxyl groups at the terminals. The use of this compound for purposes different from that of ordinary amines and amine derivatives is expected.A process for producing the tertiary aminoalcohol wherein a catalyst comprising copper, a transition metal element of the fourth period and a platinum group element of the group VIII, and further optionally containing an alkali metal or an alkaline earth metal is used.A process for producing polyurethane using the above-mentioned tertiary aminoalcohol which can solve the problems occurring in the production of a polyurethane using a tertiary amine which has a strong irritating odor and is highly irritant to the skin as a catalyst, for example, deteriorations of working atmosphere and sales appeal of the polyurethane.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: August 22, 1995
    Assignee: Kao Corporation
    Inventors: Hiroshi Abe, Tetsuaki Fukushima, Kohshiro Sotoya, Shoichiro Harada, Hiroshi Kitagawa, Masayoshi Morii, Yasutoshi Isayama
  • Tertiary aminoalcohol and process for producing the same, and, polyurethane and process for producing the same
    Patent number: 5315041
    Abstract: A tertiary aminoalcohol having a tert-amino group(s) in the main chain and hydroxyl groups at the terminals. The use of this compound for purposes different from that of ordinary amines and amine derivatives is expected.A process for producing the tertiary aminoalcohol wherein a catalyst comprising copper, a transition metal element of the fourth period and a platinum group element of the group VIII, and further optionally containing an alkali metal or an alkaline earth metal is used.A process for producing polyurethane using the above-mentioned tertiary aminoalcohol which can solve the problems occurring in the production of a polyurethane using a tertiary amine which has a strong irritating odor and is highly irritant to the skin as a catalyst, for example, deteriorations of working atmosphere and sales appeal of the polyurethane.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: May 24, 1994
    Assignee: Kao Corporation
    Inventors: Hiroshi Abe, Tetsuaki Fukushima, Kohshiro Sotoya, Shoichiro Harada, Hiroshi Kitagawa, Masayoshi Morii, Yasutoshi Isayama
  • Polyurethane, process for producing the same, and process for producing polyurethane foam
    Patent number: 5306735
    Abstract: Processes for producing a polyurethane, a rigid polyurethane foam, a flexible polyurethane foam and a spray type rigid polyurethane foam are disclosed. In these processes, a specified tertiary aminoalcohol is used as a polyol component and a catalyst.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: April 26, 1994
    Assignee: Kao Corporation
    Inventors: Shoichiro Harada, Yasutoshi Isayama, Tetsuaki Fukushima, Masayoshi Morii, Hiroshi Kitagawa, Hiroshi Abe
  • Polyurethane, process for producing the same, and process for producing polyurethane foam
    Patent number: 5223547
    Abstract: Processes for producing a polyurethane, a rigid polyurethane foam, a flexible polyurethane foam and a spray type rigid polyurethane foam are disclosed.In these processes, a specified tertiary aminoalcohol is used as a polyol component and a catalyst.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: June 29, 1993
    Assignee: KAO Corporation
    Inventors: Shoichiro Harada, Yasutoshi Isayama, Tetsuaki Fukushima, Masayoshi Morii, Hiroshi Kitagawa, Hiroshi Abe