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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0134604 (2013-12-19) |
| 등록번호 | US-9795906 (2017-10-24) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 0 인용 특허 : 440 |
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 nonwoven filtration medium comprising: a loading layer having an average pore size of 5 to 30 micrometers, wherein the loading layer comprises bicomponent fibers and glass fibers, wherein the bicomponent fibers have a concentric sheath-core structure; andan efficiency layer having an average po
1. A nonwoven filtration medium comprising: a loading layer having an average pore size of 5 to 30 micrometers, wherein the loading layer comprises bicomponent fibers and glass fibers, wherein the bicomponent fibers have a concentric sheath-core structure; andan efficiency layer having an average pore size of 0.5 to 3 micrometers. 2. The nonwoven filtration medium of claim 1 wherein the efficiency layer has a permeability of 5 to 30 ft-min−1 and the loading layer has a permeability of 50 to 200 ft-min−1. 3. The nonwoven filtration medium of claim 1 further comprising a fluoro-organic compound. 4. A multilayer nonwoven filtration medium comprising: a loading layer having an average pore size of 5 to 30 micrometers; andan efficiency layer having an average pore size of 0.5 to 3 micrometers;wherein one or more layers comprise bicomponent binder fibers and glass fibers. 5. The multilayer nonwoven filtration medium of claim 4 which has a permeability of 4 to 20 ft-min−1, a wet burst strength of 10 lb-in−2 to 20 lb-in−2, and a basis weight of 100 g-m−2 to 200 g-m−2. 6. The multilayer nonwoven filtration medium of claim 4 further comprising a fluoro-organic compound.
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