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Patent Searching and Data


Title:
ULTRA-CLEAN PRODUCTION PROCESS FOR DISPOSABLE MULTI-LAYER CO-EXTRUSION BAG
Document Type and Number:
WIPO Patent Application WO/2023/131130
Kind Code:
A1
Abstract:
An ultra-clean production process for a disposable multi-layer co-extrusion bag. The process comprises: classifying materials used by the multi-layer co-extrusion bag into a filling needle type material, a pipeline type material, a connector type material, and a membrane type material, and performing cleaning and drying by means of different processes. The number of visible foreign matters in a produced disposable sterile filling bag is reduced by 70% or more compared with the number of visible foreign matters in a disposable sterile filling bag produced by means of a general production process, and the number of insoluble microparticles can be reduced by 50% or more.

Inventors:
WANG FENG (CN)
LIU ZHI (CN)
QI OUDI (CN)
LI GUANSHENG (CN)
WANG HAOHAO (CN)
Application Number:
PCT/CN2023/070220
Publication Date:
July 13, 2023
Filing Date:
January 03, 2023
Export Citation:
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Assignee:
SHANGHAI LEPURE BIOTECH CO LTD (CN)
SHANGHAI LEPURE NEO MAT CO LTD (CN)
International Classes:
B08B9/023; B08B3/02; B08B3/12; B08B9/032; F26B21/10
Foreign References:
CN114392986A2022-04-26
CN105500675A2016-04-20
CN104512581A2015-04-15
CN105173248A2015-12-23
JPH1017687A1998-01-20
Attorney, Agent or Firm:
SHANGHAI LUNGTIN LAW FIRM (CN)
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