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公开(公告)号：EP0378243A2
公开(公告)日：1990-07-18
申请号：EP90100672.6
申请日：1990-01-13
发明人： Wheeler, Robert Don , Schulman, Edward Henry , Wierzbicki, Ronald John , Bertram, George Teofilius
CPC分类号： B29C44/3446 , B29B7/7447 , Y10S261/26 , Y10S521/917
摘要： A method of producing a polyurethane foam comprising the steps of dissolving rapidly and substantially completely a non-condensible non-reactive gas in a liquid isocyanate component or a liquid polyol component or both while the isocyanate and polyol components are maintained separate from one another, while controlling the flow of the non-reactive gas to maintain a predetermined dissolved gas to liquid ratio, and while maintaining the component in which the nucleating agent is being dissolved under pressure sufficient to maintain the gas in solution and to hold substantially constant the dissolved gas to liquid ratio and mixing the previously separated isocyanate and polyol components together while reducing the pressure to nucleate the dissolved gas in the isocyanate and polyol components and while impinging liquid streams of the composition together thereby enhancing mixing and permitting the mixture to foam so as to form a fine celled polyurethane foam. An apparatus for producing the same is also provided.
摘要翻译： 制造聚氨酯泡沫，其包含迅速和基本溶解在液体异氰酸酯组分或液体多元醇组分或这两种完全呼叫不可冷凝的非反应性气体，同时将异氰酸酯和多元醇组分保持彼此分开的步骤的一种方法，而 控制以维持对液体的比例，并同时保持在其中成核剂被压力足以保持气体在溶液中并以基本恒定的溶解的气体保持到下溶解的分量相关的预定溶解气体的非反应性气体的流量 液体比和以前分离的异氰酸酯和多元醇组分混合在一起，同时降低成核的溶解气体中的异氰酸酯和多元醇组分的压力和同时照射该组合物的液体流一起从而增强混合和允许所述混合物发泡，从而形成一个 微细孔聚氨酯泡沫。 因此其制造的装置被提供。
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公开(公告)号：EP0378243A3
公开(公告)日：1991-07-10
申请号：EP90100672.6
申请日：1990-01-13
发明人： Wheeler, Robert Don , Schulman, Edward Henry , Wierzbicki, Ronald John , Bertram, George Teofilius
CPC分类号： B29C44/3446 , B29B7/7447 , Y10S261/26 , Y10S521/917
摘要： A method of producing a polyurethane foam comprising the steps of dissolving rapidly and substantially completely a non-condensible non-reactive gas in a liquid isocyanate component or a liquid polyol component or both while the isocyanate and polyol components are maintained separate from one another, while controlling the flow of the non-reactive gas to maintain a predetermined dissolved gas to liquid ratio, and while maintaining the component in which the nucleating agent is being dissolved under pressure sufficient to maintain the gas in solution and to hold substantially constant the dissolved gas to liquid ratio and mixing the previously separated isocyanate and polyol components together while reducing the pressure to nucleate the dissolved gas in the isocyanate and polyol components and while impinging liquid streams of the composition together thereby enhancing mixing and permitting the mixture to foam so as to form a fine celled polyurethane foam. An apparatus for producing the same is also provided.
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