| 摘要 |
<p>PCT No. PCT/GB96/00049 Sec. 371 Date Aug. 5, 1997 Sec. 102(e) Date Aug. 5, 1997 PCT Filed Jan. 12, 1996 PCT Pub. No. WO96/25277 PCT Pub. Date Aug. 22, 1996A method in which a flexible outer barrier layer is applied to at least that part of the object most vulnerable to decay, a bituminous substance is provided between the outer barrier layer and the object, and the barrier layer is heated so as to melt the bituminous substance sufficiently for it to bond intimately to the wooden object. The barrier layer may be a heat shrinkable plastic film and may be a sleeve which is heat shrunk onto the object. The invention is particularly useful for protecting vulnerable parts of elongate wooden objects, such as fence posts or poles, from decay.</p> |
