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특허 상세정보

Nonwoven filter media

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) D04H-001/00   
미국특허분류(USC) 442/352 ; 442/353 ; 442/361 ; 442/364
출원번호 US-0745551 (1996-11-12)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Tulley, Jr.
인용정보 피인용 횟수 : 78  인용 특허 : 39
초록

There is provided in accordance with the present invention a lofty filter medium for filtering fluid-borne particles, which comprises a nonwoven fiber web of crimped fibers selected from the group consisting of spunbond fibers and staple fibers, wherein the filter medium has a density between about 0.005 g/cm.sup.3 and about 0.1 g/cm.sup.3. The lofty filter medium is highly suitable for fluid-borne particle filtration applications, such as filtration media for transmission fluids, hydraulic fluids, swimming pool water, coolant oil or cutting fluid for me...

대표
청구항

[ What is claimed is:] [1.] A lofty nonwoven filter medium comprising a nonwoven fiber web adapted for filtering fluid-borne particles, said nonwoven medium filter having a depth and comprising an uncompacted, autogenously bonded web of crimped continuous multicomponent spunbond fibers wherein said nonwoven filter medium has a density greater than 0.005 g/cm.sup.3 and less than 0.1 g/cm.sup.3 and a density gradient across its depth and further wherein said spunbond fibers have an average diameter of from about 10 .mu.m to about 50 .mu.m.

이 특허에 인용된 특허 (39)

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