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公开(公告)号:BR7801475A
公开(公告)日:1978-10-31
申请号:BR7801475
申请日:1978-03-10
Applicant: HOECHST AG
Inventor: NISCHWITZ E , LASK H , HOLST A
Abstract: This invention relates to a bonded fiber web capable of absorbing water vapor and composed of synthetic, natural or regenerated fibers with a uniformly incorporated additive of at least one polymer, said additive comprising fibrous particles of at least one swellable carbohydrate derivative or a swellable modified carbohydrate derivative. The invention also relates to a process for the manufacture of the bonded fiber web.
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公开(公告)号:ZA764612B
公开(公告)日:1977-07-27
申请号:ZA764612
申请日:1976-07-30
Applicant: HOECHST AG
Abstract: Process for the transformation of comminuted cellulose ether, which has been rendered at least largely water-insoluble by modification but is still highly swellable with water, into an easily workable material, comprising wetting a hydrophilic support web, applying the comminuted modified cellulose ether to the wetted web, and drying. This invention also relates to an apparatus for performing the process.
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公开(公告)号:BR7602786A
公开(公告)日:1976-11-09
申请号:BR7602786
申请日:1976-06-04
Applicant: HOECHST AG
IPC: A61F13/472 , A61F13/15 , A61F13/53 , A61L15/28 , A61L15/60 , C08B11/08 , C08B11/187 , C08B15/00 , C08B15/10
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公开(公告)号:SE7605036L
公开(公告)日:1976-11-06
申请号:SE7605036
申请日:1976-05-03
Applicant: HOECHST AG
IPC: A61F13/472 , A61F13/15 , A61F13/53 , A61L15/28 , A61L15/60 , C08B11/08 , C08B11/187 , C08B15/00 , C08B15/10 , C08B11/00
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公开(公告)号:ZA751935B
公开(公告)日:1976-02-25
申请号:ZA751935
申请日:1975-03-26
Applicant: HOECHST AG
Inventor: LASK H , HOLST A , KOSTRZEWA M
IPC: A24D3/10 , A24B15/033
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公开(公告)号:ZA748176B
公开(公告)日:1976-01-28
申请号:ZA748176
申请日:1974-12-23
Applicant: HOECHST AG
Inventor: LASK H , HOLST A , KOSTRZEWA M
IPC: C08L101/00 , A61L15/28 , B01J47/12 , C08J5/22 , C08J7/04 , C08J9/28 , C08L1/00 , C08L1/06 , C08L1/08 , C08L1/26 , C08L67/00 , C08L77/00 , D01F1/10 , D01F2/28 , D06M15/09 , C08B
Abstract: 1492040 Articles comprising cellulosic particles HOECHST AG 20 Dec 1974 [24 Dec 1973] 55196/74 Heading C3F [Also in Division B5] Cellulose ethers, inherently water-soluble but rendered at least partly water-insoluble, but still water-absorbent by cross-linking or other chemical modification, are uniformly distributed in, or over a surface of, a shaped article composed of a film- or fibre-forming polymer which is insoluble in water. The cellulose ether may be carboxymethyl-, hydroxyethyl-, or methylhydroxyethyl-cellulose and is preferably in the form of particles of a size within the range of from 0À01 to 2 mm. Several modifying agents are used, epichlorohydrin most commonly. The shaped articles in the examples are films of hydrated cellulose (from viscose), cellulose acetate and hydroxyethyl cellulose and fibres of polyethylene.
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公开(公告)号:ZA7407282B
公开(公告)日:1975-11-26
申请号:ZA7407282
申请日:1974-11-13
Applicant: HOECHST AG
Inventor: KOSTRZEWA M , LASK H , HOLST A
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