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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0616088 (2012-09-14) |
등록번호 | US-8641796 (2014-02-04) |
발명자 / 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 4 인용 특허 : 438 |
Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and ca
Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
1. A thermally bonded nonwoven filter medium comprising about 10 to 90 wt % of a bicomponent fiber comprising a diameter of 5 to 50 microns, and about 10 to 90 wt % of a media fiber comprising a diameter of 0.1 to 5 microns, wherein the filter medium comprises a thickness of about 0.25 to 1.9 mm, a
1. A thermally bonded nonwoven filter medium comprising about 10 to 90 wt % of a bicomponent fiber comprising a diameter of 5 to 50 microns, and about 10 to 90 wt % of a media fiber comprising a diameter of 0.1 to 5 microns, wherein the filter medium comprises a thickness of about 0.25 to 1.9 mm, a pore size of about 0.2 to 50 microns, a permeability of about 2 to 200 ft-min−1, a solidity of about 2 to 25%, and a basis weight of about 2 to 200 g-m−2. 2. A filter element comprising two or more layers of the filter medium of claim 1. 3. The filter element of claim 2 further comprising a mechanical support. 4. The filter element of claim 3 wherein the mechanical support is a perforate support, wire support, or scrim. 5. The filter medium of claim 1 wherein the bicomponent fiber comprises a polyester. 6. The filter medium of claim 1 wherein the bicomponent fiber comprises a nylon. 7. The filter medium of claim 1 wherein the media fiber is a cellulosic media fiber or a synthetic media fiber. 8. The filter medium of claim 7 wherein the synthetic media fiber comprises polyester, nylon or polyolefin. 9. The filter medium of claim 1 wherein the media fiber comprises a combination of a cellulosic fiber and at least one of polyester, nylon or polyolefin. 10. A filter element comprising the filter medium of claim 1 and an additional filter medium, the additional filter medium different from the filter medium of claim 1. 11. The filter element of claim 10 comprising two or more layers of the filter medium of claim 1, the additional filter medium, or both. 12. The filter element of claim 11 further comprising a mechanical support. 13. The filter element of claim 12 wherein the mechanical support is a perforate support, wire support, or scrim.
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