| 发明名称 | Film for construction and film combination | ||
| 摘要 | A film (1) for construction with at least one functional layer (2) and optionally at least one other layer, especially a carrier layer and/or reinforcing layer (3), the functional layer (2) having a water vapor diffusion resistance (sd value) that is dependent on the ambient humidity. The functional layer (2) has at least one material (4) that can be obtained from a renewable raw material, especially at least one polymer based on a renewable raw material. | ||
| 申请公布号 | US8771827(B2) | 申请公布日期 | 2014.07.08 |
| 申请号 | US200812679392 | 申请日期 | 2008.09.24 |
| 申请人 | Ewald Dörken AG | 发明人 | Schröer Jörn |
| 分类号 | B32B7/02 | 主分类号 | B32B7/02 |
| 代理机构 | Roberts Mlotkowski Safran & Cole, P.C. | 代理人 | Roberts Mlotkowski Safran & Cole, P.C. ;Safran David S. |
| 主权项 | 1. A film combination for construction, comprising at least one functional layer consisting of a biodegradable polymer selected from the group consisting of a biodegradable polyester, a biodegradable polyhydroxyalkanoate, a biodegradable polylactide, a biodegradable polyester urethane and a biodegradable polysaccharide, the functional layer having a water vapor diffusion resistance (sd value) that is dependent on ambient humidity, and at least one carrier or reinforcing layer, further comprising at least one additional layer that has a water vapor permeability that is less than the water vapor permeability of the functional layer. | ||
| 地址 | Herdecke DE | ||