PROCESS FOR MAKING POLYESTER RESIN-BASED MOULD TABLES

Inventia se refera la un procedeu pentru fabricarea maselor de formare pe baza de rasini poliesterice prin amestecarea acestora cu cenusa termocentrala si eventual cu alte materiale de umplutura, conform caruia, cenusa de termocentrala înainte de utilizare, se amesteca cu apa pîna cînd granulele de cenusa ajung în forma de suspensie apoasa, dupa care sunt uscate pîna la un continut de sub 5% în greutate apa, si se introduc în masa de rasini în proportie de minimum 3% în greutate raportat la rasina poliesterica. The invention relates to a process for the preparation of compositions based on polyester resins by adding one or more fibre material(s) and/or disperse filler(s) to the polyester resin and subsequently curing the polyester resin in the presence of one or more polymerisation initiator(s) and optionally activator(s), in which the fibre material and/or filler or one fibre material and/or filler is power station ash which has previously been mixed with water and then dried, in an amount of at least 3 % by weight, based on the weight of the polyester resin, so long as one or more other fibre material(s) and/or filler(s) are used by addition before this or these and/or simultaneously with this or these and/or after this or these. This gives products having the same advantageous properties, in particular mechanical properties, as can otherwise only be achieved by thermal aftertreatment.