发明授权
- 专利标题: Polyurethane foam for shoe soles
- 专利标题(中): 聚氨酯泡沫鞋底
-
申请号: US09555928申请日: 2000-06-06
-
公开(公告)号: US06329441B1公开(公告)日: 2001-12-11
- 发明人: Makoto Okubo , Atsushi Ishikawa , Hiroshi Kitagawa
- 申请人: Makoto Okubo , Atsushi Ishikawa , Hiroshi Kitagawa
- 优先权: JP9-361210 19971226
- 主分类号: C08L7508
- IPC分类号: C08L7508
摘要:
Microcellular polyurethane elastomer shoe sole components having exceptional physical properties may be prepared from isocyanate-terminated prepolymers derived from polyoxypropylene diols having a molecular weight of from about 2000 Da to 8000 Da, an unsaturation less than about 0.02 meq/g, and a random oxyethylene content of from about 5 to about 15 weight percent. The shoe sole components exhibit high tensile strength, elongation, resilience, and in addition have excellent tear strength, particularly 90° angle tear.