首页>
外国专利>
lunkerfreie moulded polyurethane gegenstaende with oberflaechenbefestigungsstreifen.
lunkerfreie moulded polyurethane gegenstaende with oberflaechenbefestigungsstreifen.
展开▼
机译:无空隙的模制聚氨酯物体,带有表面固定条。
展开▼
页面导航
摘要
著录项
相似文献
摘要
In a method for making a molded polyurethane article having a nonwoven material secured to the article's surface which comprises placing the nonwoven material on the internal surface of a mold, adding and foaming a polyurethane composition in the mold and recovering the molded polyurethane article with the nonwoven material attached to the surface of the article, the improvement which comprises coating the nonwoven material with a composition consisting essentially of a fully hydrolyzed polyvinyl alcohol, an organic polyisocyanate and a catalyst for the urethane reaction, and curing the coating on the nonwoven material prior to adding and foaming the polyurethane composition in the mold.
展开▼