Title:
MELT-BLOWN POLYPROPYLENE COMPOSITION, METHOD FOR IMPROVING STRENGTH OF MELT-BLOWN POLYPROPYLENE COMPOSITION, AND APPLICATION OF MELT-BLOWN POLYPROPYLENE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/274190
Kind Code:
A1
Abstract:
Disclosed in the present invention are a melt-blown polypropylene composition, a method for improving the strength of the melt-blown polypropylene composition, and an application of the melt-blown polypropylene composition. The method for improving the strength of the melt-blown polypropylene composition comprises the following steps: S1, conveying, into a low-pressure separation system, a melt-blown polypropylene melt mixture formed by mixing a polypropylene raw material and an additive, and performing extrusion and granulation; and S2, performing steam heating on particles obtained in step S1, and then drying to obtain the melt-blown polypropylene composition, the temperature of steam heating in step S2 being 80-110°C. The melt-blown polypropylene obtained by the method is low in odor, low in resistance, high in filtering efficiency, and high in strength.
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Inventors:
TANG YUHANG (CN)
QIAN ZHIJUN (CN)
GUO TANGHUA (CN)
CHEN PINGXU (CN)
YE NANBIAO (CN)
QIAN ZHIJUN (CN)
GUO TANGHUA (CN)
CHEN PINGXU (CN)
YE NANBIAO (CN)
Application Number:
PCT/CN2022/101752
Publication Date:
January 05, 2023
Filing Date:
June 28, 2022
Export Citation:
Assignee:
KINGFA SCI &TECH CO LTD (CN)
International Classes:
C08L23/12; C08J3/22; C08K3/38; C08K5/14; D01F1/10; D01F6/46; D04H1/4291; D04H1/56
Foreign References:
| CN113480801A | 2021-10-08 | |||
| CN112194850A | 2021-01-08 | |||
| CN111531839A | 2020-08-14 | |||
| CN102127218A | 2011-07-20 | |||
| US5204037A | 1993-04-20 | |||
| US3288897A | 1966-11-29 |
Attorney, Agent or Firm:
YOGO PATENT AND TRADEMARK AGENCY LIMITED COMPANY (CN)
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