公开(公告)号：WO1990005621A1

公开(公告)日：1990-05-31

申请号：PCT/US1989005050

申请日：1989-11-14

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  KAYIHAN, Ferhan ,  SUNOL, Aydin, K.

IPC: B27K03/02

CPC classification number: C04B41/4535 ,  B05D1/18 ,  B05D7/06 ,  B05D2401/90 ,  B27K3/02 ,  B27K3/0285

Abstract: The invention is a method of perfusing a material, such as wood, with a chemical composition that is insoluble in a given first fluid under supercritical conditions. A cosolvent is mixed with the first solvent to provide adequate solubility at supercritical conditions for the chemical composition. The method is useful for uniformly impregnating otherwise difficulty permeable materials. Impregnation of lumber or structural timbers with a preservative would be a typical use of the method.

Abstract translation: 本发明是在超临界条件下灌注具有不溶于给定第一流体的化学组成的材料如木材的方法。 共溶剂与第一溶剂混合以在超临界条件下为化学组成提供足够的溶解度。 该方法对于均匀浸渍其他难以渗透的材料是有用的。 用防腐剂浸渍木材或结构木材将是该方法的典型用途。