METHOD FOR PRODUCING MOLDED PARTS, ESPECIALLY UPHOLSTERY, FROM AT LEAST TWO FOAMS, IN PARTICULAR POLYURETHANE FOAMS, DIFFERENT ELASTICITY OR. HARDENING, FLOWABLE REACTION MIXTURES AND APPLICATION OF THIS METHOD FOR THE PRODUCTION OF VEHICLE SEAT PADS WITH SIDE CURVES

摘要

1. A process for the production of mouldings, especially cushions, from at least two foams, especially polyurethane foams forming fluid reaction mixtures of different elasticity or hardness, wherein a first and at least a second reaction mixture are introduced into a mould cavity and are left to react out to form a moulding having zones (4, 5, 8) of different elasticity or hardness before the moulding is removed from the mould, characterised in that, when introduced into the mould, the second reaction mixture is allowed to cream up to such an extent that it already has a lower density than the first reaction mixture at the time of contact, wherein the second or further reaction mixture(s) is (are) introduced onto and/or next to the layer(s) formed by the first or further reaction mixture(s).