1.
    发明专利
    未知

    公开(公告)号:DK4682A

    公开(公告)日:1982-07-11

    申请号:DK4682

    申请日:1982-01-08

    Applicant: HOECHST AG

    Abstract: A two-component diazotype material, composed of a support and a light-sensitive layer which is applied thereto and contains a polymeric binder, a diazonium salt, a coupler, an acid stabilizer and conventional additives, wherein the support is a biaxially oriented polyester film and the polymeric binder comprises a mixture of about 10-60 percent by weight of a polymer or copolymer of vinyl acetate, for example, a copolymer of vinyl acetate and crotonic acid, and about 40-90 percent by weight of a cellulose ester, such as cellulose acetopropionate, cellulose acetobutyrate, cellulose propionate or cellulose butyrate.

    2.
    发明专利
    未知

    公开(公告)号:DK79980A

    公开(公告)日:1980-08-27

    申请号:DK79980

    申请日:1980-02-25

    Applicant: HOECHST AG

    Inventor: FROMMELD H D

    Abstract: This invention relates to an improvement in a two-component diazotype material, composed of a support and of a light-sensitive layer applied to the support, the layer containing at least one benzene diazonium salt as the light-sensitive component and at least one coupler, the improvement comprising the combination of at least one 2,5-dialkoxy-4-mercaptobenzene diazonium salt and at least one compound of the general formula in which R1 and R2 are identical or different and denote hydrogen or alkyl, alkenyl, aralkyl, aryl or cycloalkyl groups, which can be further substituted.

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