초록 ▼

A foamed isocyanate-based polymer containing a filler material, the filler material being present at a level greater than 30% by weight of the polymer and having a specific gravity of less than about 2.0 with the provisio that the filler material is not melamine. A process for producing the a foamed

A foamed isocyanate-based polymer containing a filler material, the filler material being present at a level greater than 30% by weight of the polymer and having a specific gravity of less than about 2.0 with the provisio that the filler material is not melamine. A process for producing the a foamed isocyanate-based polymer is also disclosed. The process comprises the steps of: providing a first mixture comprising water, a catalyst and a substantially inert filler material, the filler material being wetted by the water and the catalyst; providing a second mixture comprising an isocyanate and an active hydrogen-containing compound; mixing the first mixture and the second mixture to provide a reaction mixture; allowing the reaction mixture to expand to produce the foamed isocyanate-based polymer.

대표청구항 ▼

A polyurethane foam consisting essentially of a cellular matrix having a plurality of Plateau borders, the foam containing a non-cellular polymeric filler material at the Plateau borders, the filler material located at the Plateau borders being present at a level greater than 30% by weight of the fo

A polyurethane foam consisting essentially of a cellular matrix having a plurality of Plateau borders, the foam containing a non-cellular polymeric filler material at the Plateau borders, the filler material located at the Plateau borders being present at a level greater than 30% by weight of the foam and having a specific gravity of less than about 1.5.