Production of foamed-in-the-mould polyurethane-based products, e.g. composite parts for cars, involves filling an open mould with polyurethane components while raising the temperature and then closing the mould

摘要

A method for the production of foamed-in-the-mould products involves (1) filling an open mould with (a) isocyanate and (b) polyol components while raising the temperature so that the components introduced at the start are at a lower temperature than those introduced at the end, and then (2) closing the mould and hardening the mixture.