4.
    发明专利
    未知

    公开(公告)号:DE2723090A1

    公开(公告)日:1977-12-15

    申请号:DE2723090

    申请日:1977-05-21

    Applicant: KAO CORP

    Abstract: Vinylbenzyl derivatives are obtained by reaction of vinylbenzyl halides with alkali metal cyanates, in the presence of a polymerisation inhibitor, in a polar solvent containing a nitrogen atom or a sulphur atom but free of active hydrogen atoms in the molecule, in the presence or in the absence of a compound containing an active hydrogen, and at a temperature between 25 and 200 DEG C. Tris(vinylbenzyl) isocyanurate is obtained by such a reaction, in the absence of a compound containing an active hydrogen, whereas di(vinylbenzyl)urea is obtained by the reaction in the presence of water, and an N'-substituted vinylbenzylurea is obtained by the reaction in the presence of an amine.

    5.
    发明专利
    未知

    公开(公告)号:DE69101990T2

    公开(公告)日:1994-12-22

    申请号:DE69101990

    申请日:1991-02-27

    Applicant: KAO CORP

    Abstract: A thermal transfer recording medium comprises a support and a heat-fusible ink layer, coated on the support, comprising a colorant and a binder comprising a polyurethane having bisphenol units or a polyether having bisphenol units and hydroxy at the terminals. It provides a transferred image with a high quality, not depending on transferring paper.

    6.
    发明专利
    未知

    公开(公告)号:DE69101990D1

    公开(公告)日:1994-06-23

    申请号:DE69101990

    申请日:1991-02-27

    Applicant: KAO CORP

    Abstract: A thermal transfer recording medium comprises a support and a heat-fusible ink layer, coated on the support, comprising a colorant and a binder comprising a polyurethane having bisphenol units or a polyether having bisphenol units and hydroxy at the terminals. It provides a transferred image with a high quality, not depending on transferring paper.

    THERMOSENSITIVE RECORDING MEDIUM
    9.
    发明专利

    公开(公告)号:CA1326596C

    公开(公告)日:1994-02-01

    申请号:CA597665

    申请日:1989-04-25

    Applicant: KAO CORP

    Abstract: A thermo-sensitive recording medium comprises a substrate and a thermo-sensitive, coloring layer, provided on the substrate, comprising a binder, a colorless or light-colored electron-donating dye, an electron-accepting compound capable of reacting with the electron-donating dye and forming a coloring matter upon heating, and an ester compound obtained from a fatty acid having 20 to 28 carbon atoms and a straight or cyclic alcohol, the ester having a melting point of 50 to 100 .degree.C and one or more non-phenolic hydroxyl groups. Thanks to the ester compound, the coloring sensitivity is improved and the formation of abrasion marks is reduced.

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