Title:
DEGRADABLE SPECIAL MATERIAL FOR INFUSION SET TUBING, AND METHOD FOR PREPARING INFUSION SET TUBING BY USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/093736
Kind Code:
A1
Abstract:
The present invention relates to the technical field of biodegradable materials, in particular, to a degradable special material for infusion set tubing, and a method for preparing infusion set tubing by using same. The special material is prepared from PBAT, a light stabilizer 944, an anti-hydrolysis additive, fumed silica, and polyglycerol. The preparation method comprises: 1) heating the interior of a double-cone vacuum dryer to 100°C, adding the polyglycerol, and absorbing the polyglycerol into the PBAT at a vacuum degree of 0.1 MPa; 2) uniformly mixing the light stabilizer 944, anti-hydrolysis additive, and fumed silica, and then melting and plasticizing and granulating in a twin-screw extruder to form a masterbatch; 3) uniformly mixing the material prepared in step 1) with the material prepared in step 2), and then melting and plasticizing and granulating in the twin-screw extruder; and 4) extrusion molding the special material prepared in step 3) to form infusion set tubing. The infusion set tubing prepared in the present invention has high transparency and high strength, can be completely biodegraded, and meets requirements for disposable infusion set tubing.
Inventors:
FU YUJING (CN)
ZHANG YILING (CN)
GONG XIANGZHI (CN)
JIN XINJIE (CN)
ZHANG YILING (CN)
GONG XIANGZHI (CN)
JIN XINJIE (CN)
Application Number:
PCT/CN2022/133591
Publication Date:
June 01, 2023
Filing Date:
November 23, 2022
Export Citation:
Assignee:
SHANDONG LAND ECO ADVANCED MAT CO LTD (CN)
International Classes:
A61J1/05; C08L67/02; A61M5/14; C08K5/103; C08K7/26; C08L79/00; C08L79/04
Foreign References:
| CN113736222A | 2021-12-03 | |||
| CN113321903A | 2021-08-31 | |||
| US6569142B1 | 2003-05-27 | |||
| US20030083440A1 | 2003-05-01 | |||
| US20100041791A1 | 2010-02-18 | |||
| JP2005350530A | 2005-12-22 | |||
| CN108912636A | 2018-11-30 | |||
| CN108295333A | 2018-07-20 | |||
| CN102731980A | 2012-10-17 | |||
| CN102482499A | 2012-05-30 | |||
| CN112574541A | 2021-03-30 | |||
| CN113429759A | 2021-09-24 |
Other References:
HALLORAN MATTHEW W., DANIELCZAK LISA, NICELL JIM A., LEASK RICHARD L., MARIĆ MILAN: "Highly Flexible Polylactide Food Packaging Plasticized with Nontoxic, Biosourced Glycerol Plasticizers", ACS APPLIED POLYMER MATERIALS, vol. 4, no. 5, 13 May 2022 (2022-05-13), pages 3608 - 3617, XP093068333, ISSN: 2637-6105, DOI: 10.1021/acsapm.2c00172
Attorney, Agent or Firm:
QINGDAO FIRST PATENT & TRADEMARK AGENT CO., LTD. (CN)
Download PDF: