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1. 发明申请

WO1996005871A1 MATERIAL COMPOSITION AND MOLDED ARTICLE 审中-公开
标题翻译：材料成分和成型品
公开(公告)号：WO1996005871A1
公开(公告)日：1996-02-29
申请号：PCT/JP1995001649
申请日：1995-08-21
申请人： NIPPON ZEON CO., LTD. , YOKOYAMA, Tetsuo , HIRAOKA, Kyoko , KIDOKORO, Hiroto
发明人： NIPPON ZEON CO., LTD.
IPC分类号： A61L29/00
CPC分类号： C08G18/65 , A61L29/06 , C08G18/10 , C08G18/4854 , Y10T428/1352 , Y10T428/139 , C08L75/04 , C08G18/6677
摘要： A material composition comprising (a) a polyfunctional isocyanate, (b) a compound having a molecular weight of 600 to 3,500 and two functional groups undergoing a polyaddition reaction with an isocyanate group, (c) a compound having a molecular weight of 500 or less and two functional groups undergoing a polyaddition reaction with an isocyanate group, and (d) a compound having a molecular weight of 700 or less and three functional groups undergoing a polyaddition reaction with an isocyanate group. A molded polymer article is produced by heating a mixture of component (a) with a part of component (b) to prepare a urethane prepolymer, and adding the rest of component (b) and components (c) and (d) to the prepolymer, followed by heating to effect a polyaddition reaction between component (a) and components (b), (c) and (d). The obtained article can be applied to the parts where a high degree of shrinkage is required, is lowly toxic, and has large tear strength, tensile strength and elongation and a small permanent set.
摘要翻译：一种材料组合物，其包含（a）多官能异氰酸酯，（b）分子量为600至3,500的化合物和与异氰酸酯基进行加聚反应的两个官能团，（c）分子量为500以下的化合物和与异氰酸酯基进行加聚反应的两个官能团，（d）分子量为700以下的化合物和与异氰酸酯基进行加聚反应的3个官能团。通过将组分（a）与组分（b）的一部分的混合物加热以制备氨基甲酸酯预聚物，并将组分（b）和组分（c）和（d）的剩余部分加入到预聚物中来制备模塑聚合物制品，，然后加热以实现组分（a）和组分（b），（c）和（d）之间的加聚反应。所得到的制品可以应用于需要高收缩的部位，具有低毒性，并且具有大的撕裂强度，拉伸强度和伸长率以及小的永久变形。

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