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1.发明授权
公开(公告)号：EP0065872B1
公开(公告)日：1986-02-19
申请号：EP82302581.2
申请日：1982-05-20
CPC分类号： C08J9/0061 , C08J9/35 , C08J2375/04 , C08J2419/00
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2.发明公开Flexible polyurethane foams having junction modifying particulate additives 无效聚氨酯泡沫与verknüpfungsmodifizierenden颗粒添加剂。
公开(公告)号：EP0065872A1
公开(公告)日：1982-12-01
申请号：EP82302581.2
申请日：1982-05-20
CPC分类号： C08J9/0061 , C08J9/35 , C08J2375/04 , C08J2419/00
摘要： Conventional polyurethane foam products are modified by incorporating into the urethane reaction mixture a junction modifying particulate material that is selected with a critically controlled particle size relative to certain dimensional parameters of the foamed polymer matrix. This particulate material is selected with a particle size that results in location of the material in the foam cell wall junction regions rather than in the cell walls. The resulting products provided excellent physical properties (such as modulus of compression, tensile strength, elongation and tear resistance) at lower costs than normally encountered with similar unmodified foams. The preferred junction modifying particulate materials are organic polymeric materials such as ground rubber or plastics. As a result, the large particle size materials needed to achieve the junction modifying properties can be used without causing harmful abrasion or wear of processing equipment surfaces.
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