Title:
HIGH TRANSMISSION AIR FILTRATION MEDIA AND TRANSPARENT FACE MASK
Document Type and Number:
WIPO Patent Application WO/2023/130339
Kind Code:
A1
Abstract:
The present invention is an electrospun web including a carrier substrate and an electrostatically charged nanofiber. The electrospun web has a pressure drop of about 5 mmH2O or less, a percent penetration of about 50%or less, and a clarity of about 80%or more.
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Inventors:
GONG GUANGMING (CN)
REN LIYUN (CN)
REN LIYUN (CN)
Application Number:
PCT/CN2022/070631
Publication Date:
July 13, 2023
Filing Date:
January 07, 2022
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY (US)
GONG GUANGMING (CN)
GONG GUANGMING (CN)
International Classes:
D04H1/4318; A41D13/11; A62B23/02; B01D39/16; B32B5/02; D04H1/4374; D04H1/728; D04H3/011; D04H3/033; D04H3/14
Foreign References:
| US20160206984A1 | 2016-07-21 | |||
| US20160166959A1 | 2016-06-16 |
Other References:
XIONG JUNPENG ET AL: "High-performance anti-haze window screen based on multiscale structured polyvinylidene fluoride nanofibers", JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS,INC, US, vol. 607, 9 September 2021 (2021-09-09), pages 711 - 719, XP086859324, ISSN: 0021-9797, [retrieved on 20210909], DOI: 10.1016/J.JCIS.2021.09.040
LIANG WEN ET AL: "Transparent Polyurethane Nanofiber Air Filter for High-Efficiency PM2.5 Capture", NANOSCALE RESEARCH LETTERS, vol. 14, no. 1, 2 December 2019 (2019-12-02), US, XP055929521, ISSN: 1931-7573, Retrieved from the Internet DOI: 10.1186/s11671-019-3199-0
CHONG LIU ET AL: "Transparent air filter for high-efficiency PM2.5 capture", NATURE COMMUNICATIONS, vol. 6, no. 1, 16 February 2015 (2015-02-16), XP055731061, DOI: 10.1038/ncomms7205
LIANG WEN ET AL: "Transparent Polyurethane Nanofiber Air Filter for High-Efficiency PM2.5 Capture", NANOSCALE RESEARCH LETTERS, vol. 14, no. 1, 2 December 2019 (2019-12-02), US, XP055929521, ISSN: 1931-7573, Retrieved from the Internet
CHONG LIU ET AL: "Transparent air filter for high-efficiency PM2.5 capture", NATURE COMMUNICATIONS, vol. 6, no. 1, 16 February 2015 (2015-02-16), XP055731061, DOI: 10.1038/ncomms7205
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LIMITED (CN)
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