Title:
PREPARATION METHOD FOR BARIUM-CONTAINING DEVELOPABLE POLYPROPYLENE FIBER
Document Type and Number:
WIPO Patent Application WO/2022/027927
Kind Code:
A1
Abstract:
Disclosed in the present invention is a preparation method for a barium-containing developable polypropylene fiber, comprising: step 1: preparation of a polypropylene/barium sulfate composite material; step 2: preparation of a membrane material; step 3: preparation of a polypropylene/barium sulfate composite fiber; and step 4: preparation of a fiber having a skin-core structure. According to the present invention, a certain amount of developable barium salts are added into polypropylene fibers forming macromolecular biological patches, and then the barium-containing developable polypropylene fibers are processed into the biological patches. Such fiber employs a skin-core structure, a barium salt-containing polypropylene is in a core layer, and a skin layer is still polypropylene; such fiber still has existing good biocompatibility and mechanical properties of the polypropylene fiber, and diagnosis can also be conducted by means of X-ray development. In the present invention, good physical properties and biosecurity are achieved, and clinic requirements are met; a doctor can be effectively assisted in conducting postoperative examination on herniorrhaphy patients, whether contracture displacement is caused to the patches or not is confirmed, and the postoperative recurrence rate and risks of the patients are decreased.
Inventors:
YANG YUMIN (CN)
GUO QIYANG (CN)
LI PENG (CN)
ZHANG LUZHONG (CN)
LI GUICAI (CN)
ZHAO YAHONG (CN)
WANG YONGJUN (CN)
GUO QIYANG (CN)
LI PENG (CN)
ZHANG LUZHONG (CN)
LI GUICAI (CN)
ZHAO YAHONG (CN)
WANG YONGJUN (CN)
Application Number:
PCT/CN2021/070645
Publication Date:
February 10, 2022
Filing Date:
January 07, 2021
Export Citation:
Assignee:
UNIV NANTONG (CN)
International Classes:
D01F8/06; A61L31/02; A61L31/04; D01D5/34; D01F1/10
Foreign References:
| CN111979599A | 2020-11-24 | |||
| CN103948968A | 2014-07-30 | |||
| CN110522954A | 2019-12-03 | |||
| CN111298205A | 2020-06-19 | |||
| EP0101650A2 | 1984-02-29 | |||
| CN104861303A | 2015-08-26 | |||
| CN105903061A | 2016-08-31 |
Attorney, Agent or Firm:
NANJING RUIHONG PATENT & TRADEMARK AGENCY (ORDINARY PARTNERSHIP) (CN)
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