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8 条记录 (耗时 0.015 秒)

    Polyester film elements and subbing compositions therefor
    5.
    发明授权
    Polyester film elements and subbing compositions therefor 失效
    聚酯薄膜元件及其组合物

    公开(公告)号：US3053661A

    公开(公告)日：1962-09-11

    申请号：US75578858

    申请日：1958-08-18

    申请人： EASTMAN KODAK CO

    发明人： STARCK CLEMENS B ,  SMITH CARL F ,  HELLMANN RICHARD J

    IPC分类号： C08L27/06 ,  C09D127/08 ,  G03C1/91

    CPC分类号： G03C1/91 ,  C08K5/13 ,  C08L27/06 ,  C08L89/00 ,  C09D127/08 ,  C08L2666/26 ,  C08L2666/28

    摘要： Coating compositions, suitable for use as a subbing layer on oriented polyester sheeting in making photographic films (see Groups VIII and XX) comprise (by weight):-0,25 to 1% gelatin. 0,5 to 6% terpolymer of (a) 80-90% vinyl or vinylidene chloride, (b) 9-19% vinyl ester of a C2-4 saturated fatty acid or a C1-4 alkyl acrylate, and (c) 0,5 to 3% of an alpha p unsaturated alpha-beta dicarboxylic acid or anhydride. 5 to 30% phenol or a mono-C1-4 alkyl substituted phenol. 0 to 0,03% gelatin hardener (e.g. chromium chloride hexahydrate). Balance C1-3 alkane dichloride, up to 25% of which may be replaced by methanol. Unsaturated dicarboxylic acids specified are itaconic and maleic. An optional second subbing layer coating composition specified consists of 0,6 to 1,75% gelatin, 0,06 to 0,15% acid dispersing agent therefor (e.g. acetic), 0,1 to 0,8% of the same terpolymer, 1 to 3,5% water, 0 to 0,03% hardener, 60 to 80% alkane dichloride and 38,24 to 13,77% methanol. In one of the specific examples (4) the coating composition of the invention used for the first subbing layer also contains 1% titanium dioxide and 0,5% ground glass. Specification 777,215 is referred to.