申请人:Chino Keisuke
公开号:US20060199917A1
公开(公告)日:2006-09-07
The objects of the present invention are to provide thermoplastic elastomers which retain an excellent recyclability while also having an excellent mechanical strength, particularly an excellent compression set, and to provide thermoplastic elastomer compositions which include such thermoplastic elastomers. These objects are achieved by the thermoplastic elastomers and thermoplastic elastomer compositions described below. One thermoplastic elastomer of the present invention is a hydrogen-bondable thermoplastic elastomer composed of an elastomeric polymer having, on side chains, carbonyl-containing groups and imidazole rings, which rings bear a hydrogen atom on a nitrogen atom and also bear an alkyl, aralkyl or aryl group. Another thermoplastic elastomer of the present invention is a thermoplastic polymer having side chains of a given structural formula that contain a carbonyl group and an imino group. The inventive thermoplastic elastomer compositions are compositions which include such thermoplastic elastomers.
本发明的目的是提供既能保持极佳的可回收性,又具有极佳的机械强度,尤其是极佳的压缩永久变形能力的热塑性弹性体,并提供包含此类热塑性弹性体的热塑性弹性体组合物。下文所述的热塑性弹性体和热塑性弹性体组合物可实现这些目标。本发明的一种热塑性弹性体是可氢键合的热塑性弹性体,由弹性聚合物组成,其侧链上有含羰基的基团和咪唑环,咪唑环在氮原子上带有一个氢原子,同时带有一个烷基、芳基或芳基。本发明的另一种热塑性弹性体是一种热塑性聚合物,它具有特定结构式的侧链,侧链上含有一个羰基和一个亚氨基。本发明的热塑性弹性体组合物就是包括这种热塑性弹性体的组合物。