| abstract |
The present invention relates to a method for producing a non-shrinkable polyurethane foam, and provides a method for producing a flexible polyurethane foam that can be used in seat pads such as seat cushions, seat backs and arm rests of automobiles. Polyurethane foam produced using the method according to the invention can be used in a wide density range of 30 ~ 55 kg / m 3 can be used not only in the seat cushion but also in the non-crushing process of the seat back, By integrating the production line, the raw material can be managed efficiently and the production defects can be reduced to significantly improve productivity compared to the existing sheet pads. |