| 摘要 |
<p>A method of producing resin articles from a resin reaction system including an uncured resin material and added radiation activatable matter therein. In one case said matter is microencapsulated catayst and, upon application of ultrasonic energy the catalyst is released to initiate cure of the resin. The catalyst is one which is water insoluble and encapsulated with gelatin. In another case, radiation reactive particles such as iron oxide particles are incorporated in the resin and are caused to heat by application of an alternating magnetic field to cure the resin. The field is generated by annular electromagnetic means (14X) borne by a core member (10X) drawn by a cable (12X) through the pipe (1X) and tube (2X). The process is particularly well suited to a replacement pipe and method of installing the replacement pipe within an existing conduit with the resin being cured by passing appropriate radiation generator through a fluid inside the inflated replacement pipe. The invention is of particular interest in mending leaky sewer pipes and the like as the presence of flowing liquid or the like does not affect the radiation.</p> |
