Upholstery articles and process for their manufacture

摘要: A molded upholstery article of expanded polyurethane is formed with an inner core and a preformed skin in which the microporous intimately joined to core. The has cells uniformly distributed its thickness as fine cellular structure, are for most part nonintercommunicating, having diameter smaller than 0.02 mm. waterproof density between 0.4 0.8. process preparing said involves coating mold surface thin coat first liquid mixture forming substances, then pouring so-coated second substances without waiting components have completed their reaction. formation foam by pressure release heat controls final step provides intimate union it. No provided reaction air at room temperature remains direct contact walls.