Method for processing a mineral fillers with a phosphate, said fillers and their uses

   
   

The invention relates to the technological sector of mineral fillers used in the sector which manufactures polyurethane foams and in particular fillers of the carbonate, hydroxide, silicate, sulphate type and similar mineral fillers. The invention relates in particular to a method of treating mineral fillers of a specific grain size with the aid of treatment agents of the organic phosphate type, incorporating a de-agglomeration step, and optionally a selection step, with a view to improving the techniques used to manufacture polyurethane foams either by foaming without an auxiliary blowing agent or with a blowing agent such as CO.sub.2, and composite polyurethane, whilst reducing the time needed to mix this treated filler treated with the polyol and other reagents. Numerous applications for block foams or moulded foams, for mattresses and similar, the automotive industry, various industrial components, etc . . .

A invenção relaciona-se ao setor technological dos enchimentos minerais usados no setor que manufatura o poliuretano espuma e em enchimentos particulares do carbonato, do hydroxide, do silicato, do tipo do sulphate e dos enchimentos minerais similares. A invenção relaciona-se no detalhe a um método de tratar enchimentos minerais de um tamanho de grão específico com o dae (dispositivo automático de entrada) de agentes do tratamento do tipo orgânico do phosphate, incorporando uma etapa do de-de-agglomeration, e opcionalmente uma etapa da seleção, com uma vista a melhorar as técnicas usadas manufaturar o poliuretano espuma espumar sem um agente fundindo auxiliar ou com um agente fundindo tal como CO.sub.2, e pelo poliuretano composto, whilst reduzindo o tempo needed para misturar este enchimento tratado tratado com o polyol e outros reagents. As aplicações numerosas para o bloco espumam ou moldaram espumam, para mattresses e similar, a indústria automotriz, os vários componentes industriais, etc.. . .

 
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