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公开(公告)号:US3622527A
公开(公告)日:1971-11-23
申请号:US3622527D
申请日:1968-04-22
申请人: BAYER AG
发明人: DIETERICH DIETER , REISCHL ARTUR , WITT HARRO
CPC分类号: C08J3/07 , C08G18/83 , C08J9/28 , C08J2201/0504 , C08J2375/04 , Y10S264/62 , Y10S264/77 , Y10S428/904 , Y10S521/919 , Y10T428/249978 , Y10T428/31859 , Y10T428/31862 , Y10T428/31873
摘要: Microporous sheets or molded articles, permeable to water vapor are prepared from sedimenting and redispersible aqueous polyurethanes. The dispersions are in microgel form, the particles having an average minimum diameter of from 2 to 500 microns, preferably 8 to 100 microns. A second component binds the microgel together without impairing the microporosity. The products of the invention are useful as artificial leather in the preparation of raincoats, handbags, belts, shoes, upholstery and also as vibration and sound-damping materials.
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公开(公告)号:US2745141A
公开(公告)日:1956-05-15
申请号:US32227652
申请日:1952-11-24
申请人: BRENNAN JOSEPH B
发明人: BRENNAN JOSEPH B
CPC分类号: H01M2/1653 , B01D67/0004 , C08J5/2275 , C08J2323/06 , H01B3/48 , Y10S264/61 , Y10S264/62 , Y10S264/72
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公开(公告)号:US2242372A
公开(公告)日:1941-05-20
申请号:US22136138
申请日:1938-07-26
申请人: CELANESE CORP
发明人: GEORGE SCHNEIDER
CPC分类号: B01D71/12 , B01D39/18 , C08J9/00 , C08J2301/00 , C08L1/08 , Y10S264/53 , Y10S264/61 , Y10S264/62 , Y10S264/63
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