发明授权
US4830916A Method of manufacturing molded products and laminated structure including the molded products manufactured according to the method 失效
制造模制产品的方法和包括根据该方法制造的模制产品的层压结构

Method of manufacturing molded products and laminated structure
including the molded products manufactured according to the method
摘要:
A method of manufacturing molded products (or foamed and molded asphalt/urethane foam products) most suitable for sound-proof, vibration control and sealing members which are applied to the floor panel, dashboard and the like in a car, for example, and more particularly, a method of manufacturing foamed and molded asphalt/urethane products comprising introducing polyalkylene polyol having at least two or more hydroxyls in a molecule and polyisocyanate having two or more isocyanate radicals into a mold together with a catalyst and a foaming agent, and reacting them in it, wherein said polyalkylene polyol includes asphalt previously emulsified and dispersed therein; and a laminated structure including a layer of foamed asphalt/urethane foam made according to the method.
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