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Noise insulating member having low degree of water and oil absorbency

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E04B-001/84   
미국특허분류(USC) 181/294 ; 181/210 ; 181/211 ; 181/204 ; 181/284 ; 252/062 ; 428/423.1
출원번호 US-0493706 (2000-01-28)
우선권정보 JP0020248 (1999-01-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Burr & Brown
인용정보 피인용 횟수 : 8  인용 특허 : 9
초록

A noise insulating member having a low degree of water absorbency and a low degree of oil absorbency. The noise insulating member includes a polyurethane foam obtained by reaction of an organic polyisocyanate component and a polyol component in the presence of a fluorine-containing surfactant, and having a cellular network having cells and communication holes which communicate with said cells. The communication holes have respective diameters each of which is not larger than 60 .mu.m.

대표
청구항

[ What is claimed is:] [1.]1. A noise insulating member having a low degree of water absorbency and a low degree of oil absorbency, said noise insulating member comprising:a polyurethane foam obtained by reaction of an organic polyisocyanate component and a polyol component in the presence of a fluorine-containing surfactant, and having a cellular network having cells and communication holes which communicate with said cells and which have respective diameters each of which is not larger than 60 .mu.m.

이 특허에 인용된 특허 (9)

  1. Doi Takao (Yokohama JPX) Itaya Noriko (Tokyo JPX) Yamashita Masami (Yokohama JPX). Condensed resin dispersion and process for its production. USP1995085438107.
  2. Hiles ; Maurice Arthur Frederick. Energy absorbing materials. USP1978074101704.
  3. Shmidt Creston D. ; Imeopkaria Daniel D. ; Suh Kyung W. ; Malone Bruce A. ; Franklin Ken. Extruded, open-cell microcellular alkenyl aromatic polymer foams, process for making, and articles made therefrom. USP1998075780521.
  4. Gallagher James A. (Grosse Ile MI). Flexible polyurethane foams with reduced tendency for shrinkage. USP1993055208271.
  5. De Vos Rik,ITX ; Biesmans Guy Leon Jean Ghislain,BEX ; Hamilton Alan James,BEX. Method of forming a thermal insulating device. USP1998125851458.
  6. Kingsbury Herbert William (Chislehurst EN). Noise control materials. USP1977094048366.
  7. Brandt Everett G. (Chillicothe IL) Christensen M. Kathryn (Metamora IL) Sahm W. Charles (Peoria IL). Noise suppression enclosure for an engine. USP1995115467747.
  8. Gillis Herbert Russell (West Deptford NJ) Stanssens Dirk (Lanaken BEX) De Vos Rik (Rotselaar BEX) Postema Aaldrik Roelf (Loosdrecht NLX) Randall David (Everberg BEX). Polymeric foams. USP1997125703136.
  9. Schmuck Jean-Claude (Houlbec Cocherel FRX) Jeannot Claude (Poissy FRX) Buisson Claude (Conflans Ste Honorine FRX). Sound insulating vehicle body part. USP1996105567922.

이 특허를 인용한 특허 피인용횟수: 8

  1. Kawaguchi, Hiromasa; Kimura, Toshiaki; Kawakami, Takeshi. Cushioning material for a polishing pad. USP2010077749599.
  2. Gaiser, Gerd. Exhaust system. USP2014078783414.
  3. Nishida, Kiyomi; Shimizu, Toyofumi; Shimizu, Takayuki; Motomura, Eiji; Matsumoto, Takuya. Flame-resistant and sound- and vibration-insulating member for vehicles, and process of manufacturing the same. USP2004076765034.
  4. Tompson, Graham. Floor mats having peripheral apertures with acoustic absorbing material. USP2003076595321.
  5. Owensby,Joseph E.. Foamed article with absorbing characteristics on one side and non-absorbing characteristics on the other side and method for producing same. USP2007077244489.
  6. Tocchi, Gabriele; Godano, Phillippe Pierre; Delmas, Bertrand Francois; Horak, Jan; Falk, Tommy Goran; Bouteraa, Karim; Wildhaber, Alexander. Sealed thin-multi-layer sound absorber. USP2010037677358.
  7. Murakami, Atsushi; Nishimoto, Kazuo; Niwa, Takahiro. Shape memory foam member and method of producing the same. USP2004116817441.
  8. Copley, David C.; Callas, James; Martin, Kevin L.. Sound suppression device for internal combustion engine system. USP2009127635048.

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