Recticel

Eddie DuPrez

Lucien Jourquin

Rudi Mortelmans

Bart Wallaeys

A method for the manufacture of flexible polyurethane foam of a density between 35 and 70 kg/m.sup.3 and having improved comfort properties, wherein a reaction mixture is composed containing at least a polyether polyol of equivalent weight between 1400 and 2800 and having a primary hydroxyl group content of more than 50%, an organic polyisocyanate, a catalyst and 0.5 to 1% by weight water with respect to the total foam weight and wherein, in order to allow the reaction mixture to expand up to said density by means of this limited amount of water and by means of up to 1.5 mole of a physical blowing agent per mole polyol, the reaction mixture is frothed mechanically and/or the reaction mixture is allowed to expand under a reduced pressure.

Method for the manufacture of flexible polyurethane foam

A method for preparing hard polyurethane and polyisocyanurate foams wherein an isocyanate and an active hydrogen containing compound are made to react in the presence of a catalyst, a foam stabilizer and a blowing agent which contains chloropropane, the used foam stabilizer being mainly of the non silicon type.

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Brakel, Belgium

Eddie DuPrez