| 摘要 |
<p>The use of a fibrous web provided with microspheres disposed mainly within said web and arranged in a pattern in which areas of the web which contain microspheres and separated from each other by areas which contain virtually no microspheres, for making an article of manufacture reinforced with fibrous webbing by impregnating the web with a liquid resin and a hardener therefor. <??>A shaped article of manufacture comprising a bonded fibrous web as described hereinabove, provided with expanded microspheres, said fibrous web having been impregnated with a mixture of a liquid resin and a hardener therefor, cured after being shaped, as well as a method of making a fibrous web incorporating microspheres, which is characterized in that microspheres not yet expanded are pressed into the fibrous web by means of a foam paste. </p> |
