Patents Assigned to Shin-Asahigawa Co., Ltd.
  • Process for treating wood
    Patent number: 4194033
    Abstract: A process for treating wood consisting of boiling the wood in a solution containing alkylamine and then transferring the boiled wood to an autoclave where an alkylamine permeating solution is forced into the wood under the conditions of pressure and heat. The wood is then dehydrated under reduced pressure and is then air dried.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: March 18, 1980
    Assignee: Shin-Asahigawa Co., Ltd.
    Inventor: Takeji Motai
  • Process for treating wood
    Patent number: 4127686
    Abstract: A process for treating wood which process comprises boiling the wood with a solution containing a surface active agent and an alkali, shifting the boiled wood to a pressure boiler, permeating the surface active agent and dilute alkali solution forceably into the wood under the conditions of pressure and heating, dehydrating it by applying reduced pressure to the wood, air drying or kiln drying the wood so treated.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: November 28, 1978
    Assignee: Shin-Asahigawa Co., Ltd.
    Inventor: Takeji Motai