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1. 发明申请

WO2021126952A1 BREATHABLE FILM AND METHOD FOR MANUFACTURING SAME 审中-公开
公开(公告)号：WO2021126952A1
公开(公告)日：2021-06-24
申请号：PCT/US2020/065272
申请日：2020-12-16
申请人： 4C AIR, INC.
发明人： LIAO, Lei , ZHAO, Mervin , WANG, Qiqi , XIAO, Wang , WANG, Haotian
IPC分类号： B01D71/34 , B32B27/02 , B32B27/08 , B01D69/10 , G02B1/10 , B32B2307/72 , B32B2307/724 , B32B2307/732 , B32B2327/12 , B32B27/12 , B32B27/32 , B32B7/12
摘要： A breathable film includes a substrate, a membrane disposed on the substrate, and an adhesive interposed between the substrate and the membrane. The membrane includes a plurality of fibers of polyvinylidene fluoride. The breathable film has an air transmission rate equal to or greater than 4000 ml/min/cm2 under air pressure of 70 mbar.

2. 发明申请

WO2019047768A1 NOZZLE PLATE FOR FIBER FORMATION 审中-公开
公开(公告)号：WO2019047768A1
公开(公告)日：2019-03-14
申请号：PCT/CN2018/103320
申请日：2018-08-30
申请人： 4C AIR, INC.
发明人： WANG, Qiqi , LIAO, Lei , GUAN, Baoqiong
IPC分类号： D01D5/00
摘要： Customizable kits of parts for the fabrication of polymer fibers and their operation method. The kits provided herein comprise a scaffold (1000) comprising first and second opposite surfaces (1002, 1004) and one or more pores (108) extending through the first and second surfaces (1002, 1004), wherein each pore (108) comprises a first channel (110) and a first conjunction interface (502). The kits additionally comprise a plurality of nozzles (1225), wherein each nozzle (1225) comprises a second channel (510) and a second conjunction interface (506), and wherein the second interface can be removably and stably coupled to the first conjunction interface (502) of each pore (108) while allowing a fluid through the first channel (110) and the second channel (510). The kits further comprise a plurality of closure structures, wherein each closure structure comprises a third conjunction interface (514), and wherein the third interface can be removably and stably coupled to the first conjunction interface (502) of each pore (108) to seal the pore (108). At least the second channel (510) of each nozzle (1225) has an internal diameter configured to allow formation of a fiber.

3. 发明申请

WO2019113348A1 BICOMPONENT OR MULTICOMPONENT FIBERS AND METHODS OF MAKING THE SAME 审中-公开
公开(公告)号：WO2019113348A1
公开(公告)日：2019-06-13
申请号：PCT/US2018/064298
申请日：2018-12-06
申请人： 4C AIR, INC.
发明人： WANG, Qiqi , LIAO, Lei , CUI, Yi
IPC分类号： D01D5/18 , D01D4/02 , D01D5/30 , D01F8/04
CPC分类号： D01D5/34 , D01D5/0038 , D01D5/0069 , D01D5/0084 , D01D5/30
摘要： Disclosed herein are systems, devices, and method for forming bicomponent or multicomponent nanofibers.

4. 发明申请

WO2019113344A1 SYSTEM AND METHODS FOR FORMING A SELF-ADHESIVE FIBROUS MEDIUM 审中-公开
公开(公告)号：WO2019113344A1
公开(公告)日：2019-06-13
申请号：PCT/US2018/064293
申请日：2018-12-06
申请人： 4C AIR, INC.
发明人： WANG, Qiqi , LIAO, Lei , BAI, Lisha , YANG, Qiu , CUI, Yi
IPC分类号： B32B5/26 , B32B7/10 , D01F6/00 , D01F8/04
摘要： Disclosed herein are systems, devices, and method for forming self-adhesive single or multilayer fibrous media. In particular, the devices, systems, and methods described herein provide a new means of gluing low basis weight (e.g., less than 3 g/m2) fibrous media.

5. 发明申请

WO2019050767A1 NANOFIBER WEB WITH CONTROLLABLE SOLID VOLUME FRACTION 审中-公开
公开(公告)号：WO2019050767A1
公开(公告)日：2019-03-14
申请号：PCT/US2018/048797
申请日：2018-08-30
申请人： 4C AIR, INC.
发明人： WANG, Qiqi , LIAO, Lei , CUI, Yi
IPC分类号： B32B3/26 , B32B9/04 , B32B15/02 , B32B27/08
摘要： Disclosed herein are nanofiber structures, and methods of making and using the same. In some embodiments, provided is a porous sheet comprising a plurality of nanofibers in contact with a supporting structure comprising a plurality of supporting elements, wherein: the nanofibers have an average diameter of about 10-900 nm; the supporting elements have an average thickness less than, about equal to, or greater than that of the thickness of the nanofibers; the sheet has an average thickness that is about 75%-150% of an average thickness of the supporting elements; a total volume of the nanofibers is less than about 20% of a total volume of the porous sheet; and/or a total volume of the supporting structure is less than about 50% of the total volume of the porous sheet. In some embodiments, provided is a multilayer structure comprising one or more sections, where each section independently comprises one or more porous sheets as described herein.

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