abstract |
Thermoplastic resin is mixed with glass fibre matt or matts, and the resulting mixture is heated above a temperature at which the resin is at least molten on its surface and compressed to form a shaped article. Thereafter, the shaped article is maintained in a temperature more than flowing temperature of the resin, and in that state pores are formed in the article by restoring force of the glass fibres in order to obtain a porous thermoplastic resin article reinforced by glass fibre matt. |