公开(公告)号：US06559266B2

公开(公告)日：2003-05-06

申请号：US09447025

申请日：1999-11-22

申请人： Wolfgang Kaufhold ,  Wolfgang Braeuer ,  Hans-Georg Wussow ,  Hans-Georg Hoppe ,  Steven C. Manning

发明人： Wolfgang Kaufhold ,  Wolfgang Braeuer ,  Hans-Georg Wussow ,  Hans-Georg Hoppe ,  Steven C. Manning

IPC分类号： C08G1842

CPC分类号： C08G18/73 ,  C08G18/6607 ,  C08G18/758

摘要： A molding composition comprising thermoplastic polyurethane is disclosed. The polyurethane is characterized in having ultimate tensile strength (UTS) and elongation at break (EAB) values after hot storage which are, each, at least 60% of the corresponding value before hot storage, glass transition temperature equal to or lower than −50° C., UTS and EAB values after hydrolytic storage which are, each, at least 80% of the corresponding value before hydrolytic storage, and Shore A hardness of 70 to 95. The polyurethane is a product of a reaction comprising an aliphatic diisocyanate, a mixture of polyols and a chain extender and contains a UV stabilizer, an antioxidant and an optional anti-hydrolysis agent.

摘要翻译： 公开了一种包含热塑性聚氨酯的模制组合物。 聚氨酯的特征在于在热存储之后具有极限拉伸强度（UTS）和断裂伸长率（EAB）值，它们各自在热存储之前的相应值的至少60％，玻璃化转变温度等于或低于-50 水解储存后的UTS和EAB值各自为水解储存前相应值的至少80％，肖氏A硬度为70至95.聚氨酯是包含脂族二异氰酸酯， 多元醇和扩链剂的混合物，并含有UV稳定剂，抗氧化剂和任选的抗水解剂。