| 摘要 |
<p>In a reaction injection moulding process for producing a coated polyurethane part, the surface of the mould is coated, prior to moulding, with a coating composition containing from 0.05 to 10% by weight of a polyurethane catalyst. The catalyst acts to bond the coating composition to the moulded part so that the shaped part upon removal from the mould contains a firmly adherent coating of the coating composition. The part may be rigid or flexible, porous or non-porous.</p> |
