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    Adhesive sheet product and method of making
    2.
    发明授权
    Adhesive sheet product and method of making 失效
    粘合片制品及其制作方法

    公开(公告)号：US2818349A

    公开(公告)日：1957-12-31

    申请号：US45054754

    申请日：1954-08-17

    申请人： PERMACEL LE PAGE S INC

    发明人： ALFRED BERGSTEDT MILTON ,  KEYS JR BURL WARD

    IPC分类号： C09J7/02

    CPC分类号： C09J7/201 ,  C09J7/22 ,  C09J7/30 ,  C09J2400/283 ,  C09J2401/005 ,  C09J2401/006 ,  C09J2467/005 ,  Y10S428/906 ,  Y10T428/24802 ,  Y10T428/24851 ,  Y10T428/28

    摘要： 818,842. Pressure-sensitive adhesive tapes. PERMACEL-LE PAGE'S Inc., [formerly PERMACEL TAPE CORPORATION]. Aug. 16, 1955 [Aug. 17, 1954 (2)], No. 23626/55. Class 140. A normally tacky and pressure-sensitive adhesive tape or sheet comprises a pressuresensitive adhesive united to one surface of a cellulosic flexible backing film, and united to the other surface of said backing a continuous mirror coating, that is, a smooth glossy and fully transparent coating, of a substantially wax- and plasticizer-free composition in which there is present at least a major proportion of at least one of the following materials: polyvinyl alcohol, carboxy methyl-, hydroxy ethyl-, methyl- and nitro-cellulose, glue, casein, or a lower alkyl methacrylate polymer having not more than six carbon atoms in the alkyl chain, and, applied directly to the continuous mirror coating, resinous binder ink impressions. The backing film may be of cellulose acetate or regenerated cellulose, which may be plasticized, e.g. with a liquid ester such as dibutyl dioctyl or dimethoxyethyl phthalate glycerine or a glycerine substitute such as a water-soluble glycol, or combinations of films with strands, e.g. of cellulose acetate, fibres, fibre webs, e.g. paper, or non-woven fabric. The backing film may be primed, e.g. with a mixture, of butadieneacrylonitrile and butadiene-styrene as in Specification 689,667, rubber latex, synthetic rubber latex-polyvinyl alcohol as in Specification 554,019, rubber rosin, such as a mixture of latex crepe rubber and pine pitch or wood rosin, prior to coating with the pressuresensitive adhesive. Specified adhesives contain crepe rubber, dehydrogenated rosin, smoked rubber, butadiene-styrene, phenol modified terpene resin, oil modified phenolic resin, hydrogenated rosin glyceride, alkylated polyhydroxy phenol, lecithin, lanolin, hydrogenated coumarone indene resin, fillers, e.g. zinc oxide, aluminium hydrate, and titanium dioxide, antioxidants and pigments. The mirror coating may also contain polyvinyl acetate, polyvinyl butyral and tri - ethylene - glycol - di - 2 - ethyl-butyrate. The ink may be based on a binder such as shellac, ethyl cellulose, and nitrocellulose, and may be dissolved in lower aliphatic alcohols or esters containing not more than six carbon atoms in the chain.