| 发明名称 | Axially oriented confined crystallization multilayer films | ||
| 摘要 | A method of forming a confined crystallization multilayer film includes coextruding a plurality of first polymer layers and a plurality of second polymer layer to form a multilayer film wherein each first polymer layer is sandwiched between second polymer layers and axially orienting the multilayer film at a temperature below the melting temperature (Tm) of the second polymer layer and to a thickness such that each first polymer layer forms a high aspect ratio substantially crystalline lamellae. | ||
| 申请公布号 | US8778245(B2) | 申请公布日期 | 2014.07.15 |
| 申请号 | US201113087828 | 申请日期 | 2011.04.15 |
| 申请人 | Case Western Reserve University | 发明人 | Hiltner Anne;Baer Eric;Lin Yijian;Carr Joel |
| 分类号 | B29C55/00 | 主分类号 | B29C55/00 |
| 代理机构 | Tarolli, Sundheim, Covell & Tummino LLP | 代理人 | Tarolli, Sundheim, Covell & Tummino LLP |
| 主权项 | 1. A method of forming a confined crystallization multilayer film, the method comprising: providing a multilayer film that includes a plurality of first polymer layers and a plurality of second polymer layers wherein each first polymer layer is sandwiched between second polymer layers, the first polymer layers having a melting temperature (Tm) below the melting temperature (Tm) of the second polymer layers; and axially orienting the multilayer film at a temperature below the melting temperature (Tm) of the second polymer layers and to a thickness such that each first polymer layer forms a high aspect ratio substantially crystalline lamellae, the multilayer film being substantially impermeable to gas diffusion. | ||
| 地址 | Cleveland OH US | ||