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109 records (took 0.024 seconds)

    63.
    发明专利
    未知

    公开(公告)号：BR7805125A

    公开(公告)日：1979-04-10

    申请号：BR7805125

    申请日：1978-08-10

    Applicant: HOECHST AG

    Inventor： HOLST A ,  FISCHER W ,  SCHERMANN W

    IPC: C09J201/00 ,  D06M17/02 ,  C09J3/02 ,  C14C9/00 ,  D06M15/00

    Abstract: This invention relates to an improvement in a water vapor absorbing and transmitting adhesive containing at least one organic binding agent which is insoluble in water, and an addition of at least one hydrophilic polymer, the improvement that the hydrophilic polymer is a swellable modified polymer in the form of small particles. The invention also relates to a process for the manufacture of the adhesive.

    64.
    发明专利
    未知

    公开(公告)号：BR7805124A

    公开(公告)日：1979-04-10

    申请号：BR7805124

    申请日：1978-08-10

    Applicant: HOECHST AG

    Inventor： SCHERMANN W ,  FISCHER W ,  HOLST A

    IPC: A61L15/30 ,  A61L15/60 ,  C08L21/00 ,  C08L21/02 ,  D06M15/693 ,  C08L7/00 ,  C08L9/00 ,  C08J5/18 ,  D06N3/02

    Abstract: This invention relates to an improvement in a sheet material comprising natural or synthetic rubber or a rubber-like polymer, which is capable of absorbing and transmitting water vapor and which contains a uniformly incorporated addition of polymer particles, the improvement that the addition comprises particles of at least one swellable modified polymer. The invention also relates to a process for the manufacture of the sheet material.

    65.
    发明专利
    未知

    公开(公告)号：DK107478A

    公开(公告)日：1978-09-13

    申请号：DK107478

    申请日：1978-03-10

    Applicant: HOECHST AG

    Inventor： HOLST A ,  LASK H ,  NISCHITZ E ,  FISCHER W

    IPC: D04H1/42 ,  D04H1/425 ,  D04H1/4258 ,  D04H1/435 ,  D04H1/46 ,  D04H1/488 ,  D04H1/587 ,  D04H1/64 ,  D04H

    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.

    69.
    发明专利
    未知

    公开(公告)号：BR7704992A

    公开(公告)日：1978-05-16

    申请号：BR7704992

    申请日：1977-07-29

    Applicant: HOECHST AG

    Inventor： KOSTRZEWA M ,  HOLST A ,  BUCHBERGER G

    IPC: C08B31/08 ,  A61F13/53 ,  A61L15/60 ,  C08B31/00 ,  C08B31/12 ,  C09K3/32 ,  A61F13/18

    Abstract: This invention relates to an improvement in the process for the manufacture of modified starch ethers in which, prior to, during, or after etherification, a reaction with a modifying agent is conducted in a wet alkaline medium, the improvement comprising that, if etherification were the only reaction conducted, an at least preponderantly water-soluble starch ether would be formed, and the modification results in an absorbent modified starch ether more than 40 per cent by weight of which is insoluble in water.

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