12.
    发明专利
    未知

    公开(公告)号:DE68922935T2

    公开(公告)日:1996-02-08

    申请号:DE68922935

    申请日:1989-06-20

    Applicant: KAO CORP

    Abstract: A photoreceptor is useful for electrophotography and comprises (a) an electrically conductive substrate, (b) an electrric charge carrier generation layer and (c) an electric charge carrier transport layer containing therein an electric charge carrier transport compound having the formula (1): in which R1, R1 min and R1 sec each are hydrogen, a linear or branched alkyl, a linear or branched alkyl having a substituent(s), an aryl or an aryl having a substituent(s), R2, R3, R2 min , R3 min , R2 sec and R3 sec each are hydrogen, a linear or branched alkyl, a linear or branched alkyl having a substituent(s), an aryl, an aryl having a substituent(s), an alkenyl, an alkenyl having a substituent(s), a heterocyclic ring or a heterocyclic ring having a substituent(s), R2 and R3 may form a ring with their adjacent carbon, R2 min and R3 min may form a ring with their adjacent carbon and R2 sec and R3 sec may form a ring with their adjacent carbon, A is a trivalent, aromatic hydrocarbon group.

    13.
    发明专利
    未知

    公开(公告)号:FR2488107B1

    公开(公告)日:1988-11-25

    申请号:FR8115353

    申请日:1981-08-07

    Applicant: KAO CORP

    Abstract: A disposable diaper comprising a water-absorbing layer located between a liquid-permeable surface sheet and a liquid-impermeable backing sheet, wherein water-absorbing shrinkable fibers, which shrink in the direction of the fiber length and are rendered elastic on absorption of water, are fixed to and extend along the central portion in the lengthwise direction of the disposable diaper in such a manner that the water-absorbing shrinkable fibers are not placed on top of the water-absorbing layer, and wherein means is provided so that the water-absorbing shrinkable fibers become wetted when the diaper is wetted, said water-absorbing shrinkable fibers exhibiting a percent shrinkage of at least 15% and a shrinking force of at least 100 g when said fibers are wetted.

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