METHOD FOR PROCESSING MINERAL FILLERS WITH A PHOSPHATE, SAID TREATED FILLERS, POLYURETHANE AND COMPOSITE POLYURETHANE FOAMS USING SAID FILLERS, MOLDED OR NON-MOLDED OBJECT CONTAINING THEM

摘要

The invention relates to the technical sector of mineral fillers used in the sector of the manufacture of polyurethane foams, and in particular fillers of carbonate, hydroxides, silicates, sulfates, and similar mineral fillers type. The invention relates in particular to a method for treating mineral fillers of particular particle size using treatment agents of organic phosphate type, including a deagglomeration step, and optionally a selection step, with the aim of improving the techniques for manufacturing polyurethane foams either by foaming without a swelling aid or with a swelling aid such as CO2, and of polyurethane composites, reducing the time for mixing the charge thus treated with the polyol and the other reagents. Numerous applications for block foams or molded foams, for mattresses and the like, in the automotive industry, various industrial parts, etc.