Patents by Inventor Seitaro Ando

Seitaro Ando 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).

  • Method of preparing heating type paving material as well as composition for heating type paving material to be used for the method
    Patent number: 6281273
    Abstract: A composition which is a blend of a specified condensate obtained by reacting polyalkylenepolyamine with an fatty acid and a modified polyolefin resin having carboxyl groups at a specified proportion. In preparing the heating type paving material comprising various aggregates, bitumen as base and the composition, the composition is added to bitumen in an amount of 0.05-5.0 weight %. The heating type paving material obtained has superior in peel resistant effect between bitumen and aggregates.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: August 28, 2001
    Assignee: Toho Chemical Industry Co., Ltd.
    Inventors: Seitaro Ando, Tadao Goto, Sadao Hagiwara, Haruyoshi Miyauchi