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    Method of preparing laminated films while regulating moisture content
    3.
    发明授权
    Method of preparing laminated films while regulating moisture content 失效
    在调节水分含量时制备层压膜的方法

    公开(公告)号：US3625794A

    公开(公告)日：1971-12-07

    申请号：US3625794D

    申请日：1969-07-15

    申请人： KURARAY CO

    发明人： ARIKAWA SHOICHI ,  HUJIWARA KOUICHI ,  IKARI KYOICHIRO ,  NISHIMATSU YUKIO

    IPC分类号： B29C43/30 ,  B32B27/00

    CPC分类号： B32B27/00 ,  B29C43/305

    摘要： Laminated films are produced by conditioning a melt of a polyvinyl alcohol resin to a moisture content of 20 to 60 percent by weight and a temperature between 50* C. and 160* C., extruding said conditioned melt in the form of a thin film through a slit onto the surface of a roller, the roller surface temperature being adjusted to between room temperature and 100* C., passing the resulting film over at least one hot roller, and laminating said polyvinyl alcohol film with a protective film while the polyvinyl alcohol film has a moisture content of 5 to 40 percent by weight.

    Method of producing a coated paper
    4.
    发明授权
    Method of producing a coated paper 失效
    生产涂布纸的方法

    公开(公告)号：US3578485A

    公开(公告)日：1971-05-11

    申请号：US3578485D

    申请日：1968-07-26

    申请人： KURARAY CO

    发明人： IMOTO SABURO ,  IKARI KYOICHIRO ,  HATTORI TATSUAKI

    IPC分类号： D21H19/60 ,  D21H25/02 ,  B44D1/44

    CPC分类号： D21H25/02 ,  D21H19/60

    摘要： A PROCESS FOR PRODUCING A COATED, PAPER, HAVING IMPROVED WATER-RESISTANCE AND SUPERIOR, PRINTABILITY CHARACTERIZED BY TREATING THE COATED SURFACE OF A PAPER COATED WITH A COLOR COMPOSITION CONTAINING AS THE PRINCIPAL CONSTITUENT A PIGMENT AND A POLYVINYL ALCOHOL WITH A SOLUTION CONTAINING A BORIC COMPOUND HAVING AN ELECTRON ACCEPTING STRUCTURE SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND BORIC SALTS, A WATER-SOLUBLE AMINO COMPOUND HAVING ONE OR MORE OF PRIMARY, SECONDARY, TERTIARY OR QUATERNARY AMINO GROUPS IN ITS MOLECULE, AN ELECTRON DONATING STRUCTURE AND A BOILING POINT IN EXCEDD OF ABOUT 100*C., AND A SURFACE ACTIVE AGENT WHICH REDUCES THE SURFACE TENSION OF THE TREATING SOLUTION.