发明授权
US07641753B2 PVC-free multilayer tube with more dependable peelability for medical purposes, and process for its production
有权
用于医疗目的具有更可靠的可剥离性的无PVC多层管及其生产方法
- 专利标题: PVC-free multilayer tube with more dependable peelability for medical purposes, and process for its production
- 专利标题(中): 用于医疗目的具有更可靠的可剥离性的无PVC多层管及其生产方法
-
申请号: US10968378申请日: 2004-10-18
-
公开(公告)号: US07641753B2公开(公告)日: 2010-01-05
- 发明人: Xiaogang Gao , Uwe Ahr , Karl-Heinz Schmitt
- 申请人: Xiaogang Gao , Uwe Ahr , Karl-Heinz Schmitt
- 申请人地址: DE Bad Homburg
- 专利权人: Fresenius Medical Care Deutschland GmbH
- 当前专利权人: Fresenius Medical Care Deutschland GmbH
- 当前专利权人地址: DE Bad Homburg
- 代理机构: Kenyon & Kenyon LLP
- 优先权: JP10349011 20031017
- 主分类号: F16L1/00
- IPC分类号: F16L1/00 ; B29C65/00 ; B32B37/00 ; B29D31/00 ; B32B27/00 ; B29C47/00 ; B29C63/00
摘要:
A PVC-free multilayer tube, preferably for medical purposes, with more dependable peelability, comprises at least three layers, of which a base layer comprising a first plastics material has been bonded to at least one connection layer comprising a second plastics material by means of at least one buffer layer arranged between the base layer and the at least one connection layer, the buffer layer comprising a third plastics material, wherein the multilayer tube can be used to mold a coil or a loop with a diameter of down to 50 mm without undesirable kinking. Each of the first and second plastics materials is comprised of at least 25% by weight, based on the total weight of the base layer and the connection layer, respectively, of polyolefins, while the third plastics material has a proportion, based on the total weight of the buffer layer, of more than 75% by weight of a thermoplastic elastomer which is not a polyolefin.
公开/授权文献
信息查询