[특허]Multilayer nonwoven laminiferous structure

Multilayer nonwoven laminiferous structure 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-005/24 B32B-031/20 B32B-033/00 D04H-003/14 D04H-003/16
출원번호	US-0618354 (1990-11-26)
발명자 / 주소	Potts David C. (Dunwoody GA) Young George A. (Atlanta GA) Everhart Dennis S. (Alpharetta GA) MacDonald J. Gavin (Decatur GA) Nohr Ronald S. (Roswell GA)
출원인 / 주소	Kimberly-Clark Corporation (Neenah WI 02)
인용정보	피인용 횟수 : 117 인용 특허 : 0

초록 ▼

A nonwoven laminiferous structure is provided which has at least two melt-extruded nonwoven layers: (A) a first layer which includes at least a portion of a first nonwoven web; and (B) a second layer adjacent to said first layer which includes at least a portion of a second nonwoven web; in which, (1) the boundary between any two adjacent melt-extruded nonwoven layers is distinct in that fibers at or near the surfaces of such adjacent layer are not significantly intermingled; (2) the fibers of at least one of such first and second layers are prepared by melt extrusion through a die at a shear rate of from about 50 to about 30,000 sec-1 and a throughput of no more than about 5.4 kg/cm/hour of a mixture of an additive and a thermoplastic polymer, which additive (a) is present at a level of from about 0.05 to about 15 percent by weight, based on the amount of thermoplastic polymer, and (b) imparts to the surfaces of the fibers, as a consequence of the preferential migration of the additive to the surfaces of the fibers as they are formed, at least one characteristic which is different from the surface characteristics of fibers prepared from the thermoplastic polymer alone, said preferential migration taking place spontaneously upon the formation of the fibers without the need for a post-formation treatment of any kind; (3) the additive present in any melt-extruded nonwoven layer does not migrate to an adjacent layer to a significant degree in use, so that the surface characteristics of each layer remain substantially as originally prepared; (4) the thermoplastic polymer is elected from the group consisting of polyolefins, polyesters, polyetheresters, and polyamides; and (5) the laminiferous structure has been pattern bonded by the application of heat and pressure.

대표청구항 ▼

A nonwoven laminiferous structure having at least two melt-extended nonwoven layers which comprises: (A) a first layer which comprises at least a portion of a first nonwoven web; and (B) a second layer adjacent to said first layer which comprises at least a portion of a second nonwoven web; in which, (1) the boundary between any two adjacent melt-extruded nonwoven layers is distinct in that fibers at or near the surfaces of such adjacent layers are not significantly intermingled; (2) the fibers of at least one of said first and second layers are prepared by melt extrusion through a die at a shear rate of from about 50 to about 30,000 sec-1 and a throughput of no more than about 5.4 kg/cm/hour of a mixture of an additive and a thermoplastic polymer, which additive (a) is present at a level of from about 0.05 to about 15 percent by weight, based on the amount of thermoplastic polymer, and (b) imparts to the surfaces of said fibers, as a consequence of the preferential migration of said additive to the surfaces of said fibers as they are formed, at least one characteristic which is different from the surface characteristics of fibers prepared from said thermoplastic polymer alone, said preferential migration taking place spontaneously upon the formation of said fibers without the need for a post-formation treatment of any kind; (3) the additive present in any melt-extruded nonwoven layer does not migrate to an adjacent layer to a significant degree in use, so that the surface characteristics of each layer remain substantially as originally prepared; (4) said thermoplastic polymer is selected from the group consisting of polyolefins, polyesters, polyetheresters, and polyamides; and (5) said laminiferous structure has been pattern bonded by the application of heat and pressure.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Multilayer nonwoven laminiferous structure 원문보기

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Multilayer nonwoven laminiferous structure 원문보기

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