High resilient flexible urethane foam and flexible molded foams based on allophanate modified isocyanates

发明授权

US06271279B1 High resilient flexible urethane foam and flexible molded foams based on allophanate modified isocyanates 失效

标题翻译：高弹性弹性聚氨酯泡沫和基于脲基甲酸酯改性异氰酸酯的柔性模塑泡沫

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专利标题： High resilient flexible urethane foam and flexible molded foams based on allophanate modified isocyanates
专利标题（中）： 高弹性弹性聚氨酯泡沫和基于脲基甲酸酯改性异氰酸酯的柔性模塑泡沫
申请号： US09613366

申请日： 2000-07-10
公开(公告)号： US06271279B1

公开(公告)日： 2001-08-07
发明人: Neil H. Nodelman , Karl W. Haider , William E. Slack
申请人： Neil H. Nodelman , Karl W. Haider , William E. Slack
主分类号： C08G1810
IPC分类号： C08G1810

High resilient flexible urethane foam and flexible molded foams based on allophanate modified isocyanates

摘要：

This invention relates to a process for the preparation of a flexible foam. This process comprising reacting a liquid, storage stable, allophanate-modified polyisocyanate having an NCO group content of about 20 to about 42%, with an isocyanate-reactive component, in the presence of a blowing agent and at least one catalyst, wherein the relative amounts of the polyisocyanate and the isocyanate-reactive component are such that the NCO index if from about 70 to about 130.

摘要（中）：

本发明涉及柔性泡沫的制备方法。该方法包括在发泡剂和至少一种催化剂的存在下使具有约20至约42％的NCO基团含量的液体，储存稳定的脲基甲酸酯改性的多异氰酸酯与异氰酸酯反应性组分反应，其中相对多异氰酸酯和异氰酸酯反应性组分的量使得NCO指数如果为约70至约130。

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