专利名称：Foamed polymer and process for
production thereof
发明人：Paul V. Farkas申请号：US08/380627申请日：19950130公开号：US05668189A公开日：19970916
摘要：A foamed isocyanate-based polymer containing a filler material, the fillermaterial being present at a level greater than 30% by weight of the polymer and having aspecific gravity of less than about 2.0 with the provisio that the filler material is notmelamine. A process for producing the a foamed isocyanate-based polymer is alsodisclosed. 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 thewater and the catalyst; providing a second mixture comprising an isocyanate and an activehydrogen-containing compound; mixing the first mixture and the second mixture toprovide a reaction mixture; allowing the reaction mixture to expand to produce thefoamed isocyanate-based polymer.
申请人：WOODBRIDGE FOAM CORPORATION
代理机构：Fitzpatrick, Cella, Harper & Scinto
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